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2933 lines
84 KiB
2933 lines
84 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: Interface layer for ipion IVP physics. |
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// |
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// $Workfile: $ |
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// $Date: $ |
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// $NoKeywords: $ |
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//===========================================================================// |
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#include "cbase.h" |
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#include "coordsize.h" |
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#include "entitylist.h" |
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#include "vcollide_parse.h" |
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#include "soundenvelope.h" |
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#include "game.h" |
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#include "utlvector.h" |
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#include "init_factory.h" |
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#include "igamesystem.h" |
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#include "hierarchy.h" |
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#include "IEffects.h" |
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#include "engine/IEngineSound.h" |
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#include "world.h" |
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#include "decals.h" |
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#include "physics_fx.h" |
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#include "vphysics_sound.h" |
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#include "vphysics/vehicles.h" |
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#include "vehicle_sounds.h" |
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#include "movevars_shared.h" |
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#include "physics_saverestore.h" |
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#include "solidsetdefaults.h" |
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#include "tier0/vprof.h" |
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#include "engine/IStaticPropMgr.h" |
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#include "physics_prop_ragdoll.h" |
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#if HL2_EPISODIC |
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#include "particle_parse.h" |
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#endif |
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#include "vphysics/object_hash.h" |
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#include "vphysics/collision_set.h" |
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#include "vphysics/friction.h" |
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#include "fmtstr.h" |
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#include "physics_npc_solver.h" |
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#include "physics_collisionevent.h" |
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#include "vphysics/performance.h" |
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#include "positionwatcher.h" |
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#include "tier1/callqueue.h" |
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#include "vphysics/constraints.h" |
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#ifdef PORTAL |
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#include "portal_physics_collisionevent.h" |
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#include "physicsshadowclone.h" |
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#include "PortalSimulation.h" |
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void PortalPhysFrame( float deltaTime ); //small wrapper for PhysFrame that simulates all 3 environments at once |
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#endif |
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void PrecachePhysicsSounds( void ); |
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// memdbgon must be the last include file in a .cpp file!!! |
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#include "tier0/memdbgon.h" |
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ConVar phys_speeds( "phys_speeds", "0" ); |
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// defined in phys_constraint |
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extern IPhysicsConstraintEvent *g_pConstraintEvents; |
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CEntityList *g_pShadowEntities = NULL; |
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#ifdef PORTAL |
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CEntityList *g_pShadowEntities_Main = NULL; |
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#endif |
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// local variables |
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static float g_PhysAverageSimTime; |
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CCallQueue g_PostSimulationQueue; |
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// local routines |
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static IPhysicsObject *PhysCreateWorld( CBaseEntity *pWorld ); |
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static void PhysFrame( float deltaTime ); |
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static bool IsDebris( int collisionGroup ); |
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void TimescaleChanged( IConVar *var, const char *pOldString, float flOldValue ) |
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{ |
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if ( physenv ) |
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{ |
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physenv->ResetSimulationClock(); |
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} |
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} |
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ConVar phys_timescale( "phys_timescale", "1", 0, "Scale time for physics", TimescaleChanged ); |
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#if _DEBUG |
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ConVar phys_dontprintint( "phys_dontprintint", "1", FCVAR_NONE, "Don't print inter-penetration warnings." ); |
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#endif |
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#ifdef PORTAL |
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CPortal_CollisionEvent g_Collisions; |
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#else |
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CCollisionEvent g_Collisions; |
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#endif |
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IPhysicsCollisionSolver * const g_pCollisionSolver = &g_Collisions; |
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IPhysicsCollisionEvent * const g_pCollisionEventHandler = &g_Collisions; |
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IPhysicsObjectEvent * const g_pObjectEventHandler = &g_Collisions; |
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struct vehiclescript_t |
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{ |
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string_t scriptName; |
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vehicleparams_t params; |
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vehiclesounds_t sounds; |
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}; |
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class CPhysicsHook : public CBaseGameSystemPerFrame |
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{ |
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public: |
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virtual const char *Name() { return "CPhysicsHook"; } |
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virtual bool Init(); |
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virtual void LevelInitPreEntity(); |
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virtual void LevelInitPostEntity(); |
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virtual void LevelShutdownPreEntity(); |
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virtual void LevelShutdownPostEntity(); |
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virtual void FrameUpdatePostEntityThink(); |
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virtual void PreClientUpdate(); |
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bool FindOrAddVehicleScript( const char *pScriptName, vehicleparams_t *pVehicle, vehiclesounds_t *pSounds ); |
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void FlushVehicleScripts() |
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{ |
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m_vehicleScripts.RemoveAll(); |
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} |
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bool ShouldSimulate() |
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{ |
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return (physenv && !m_bPaused) ? true : false; |
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} |
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physicssound::soundlist_t m_impactSounds; |
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CUtlVector<physicssound::breaksound_t> m_breakSounds; |
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CUtlVector<masscenteroverride_t> m_massCenterOverrides; |
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CUtlVector<vehiclescript_t> m_vehicleScripts; |
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float m_impactSoundTime; |
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bool m_bPaused; |
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bool m_isFinalTick; |
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}; |
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CPhysicsHook g_PhysicsHook; |
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//----------------------------------------------------------------------------- |
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// Singleton access |
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//----------------------------------------------------------------------------- |
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IGameSystem* PhysicsGameSystem() |
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{ |
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return &g_PhysicsHook; |
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} |
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//----------------------------------------------------------------------------- |
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// Purpose: The physics hook callback implementations |
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//----------------------------------------------------------------------------- |
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bool CPhysicsHook::Init( void ) |
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{ |
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factorylist_t factories; |
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// Get the list of interface factories to extract the physics DLL's factory |
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FactoryList_Retrieve( factories ); |
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if ( !factories.physicsFactory ) |
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return false; |
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if ((physics = (IPhysics *)factories.physicsFactory( VPHYSICS_INTERFACE_VERSION, NULL )) == NULL || |
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(physcollision = (IPhysicsCollision *)factories.physicsFactory( VPHYSICS_COLLISION_INTERFACE_VERSION, NULL )) == NULL || |
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(physprops = (IPhysicsSurfaceProps *)factories.physicsFactory( VPHYSICS_SURFACEPROPS_INTERFACE_VERSION, NULL )) == NULL |
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) |
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return false; |
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PhysParseSurfaceData( physprops, filesystem ); |
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m_isFinalTick = true; |
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m_impactSoundTime = 0; |
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m_vehicleScripts.EnsureCapacity(4); |
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return true; |
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} |
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// a little debug wrapper to help fix bugs when entity pointers get trashed |
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#if 0 |
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struct physcheck_t |
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{ |
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IPhysicsObject *pPhys; |
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char string[512]; |
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}; |
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CUtlVector< physcheck_t > physCheck; |
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void PhysCheckAdd( IPhysicsObject *pPhys, const char *pString ) |
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{ |
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physcheck_t tmp; |
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tmp.pPhys = pPhys; |
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Q_strncpy( tmp.string, pString ,sizeof(tmp.string)); |
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physCheck.AddToTail( tmp ); |
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} |
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const char *PhysCheck( IPhysicsObject *pPhys ) |
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{ |
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for ( int i = 0; i < physCheck.Size(); i++ ) |
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{ |
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if ( physCheck[i].pPhys == pPhys ) |
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return physCheck[i].string; |
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} |
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return "unknown"; |
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} |
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#endif |
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void CPhysicsHook::LevelInitPreEntity() |
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{ |
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physenv = physics->CreateEnvironment(); |
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physics_performanceparams_t params; |
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params.Defaults(); |
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params.maxCollisionsPerObjectPerTimestep = 10; |
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physenv->SetPerformanceSettings( ¶ms ); |
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#ifdef PORTAL |
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physenv_main = physenv; |
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#endif |
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{ |
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g_EntityCollisionHash = physics->CreateObjectPairHash(); |
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} |
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factorylist_t factories; |
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FactoryList_Retrieve( factories ); |
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physenv->SetDebugOverlay( factories.engineFactory ); |
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physenv->EnableDeleteQueue( true ); |
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physenv->SetCollisionSolver( &g_Collisions ); |
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physenv->SetCollisionEventHandler( &g_Collisions ); |
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physenv->SetConstraintEventHandler( g_pConstraintEvents ); |
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physenv->EnableConstraintNotify( true ); // callback when an object gets deleted that is attached to a constraint |
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physenv->SetObjectEventHandler( &g_Collisions ); |
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physenv->SetSimulationTimestep( DEFAULT_TICK_INTERVAL ); // 15 ms per tick |
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// HL Game gravity, not real-world gravity |
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physenv->SetGravity( Vector( 0, 0, -GetCurrentGravity() ) ); |
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g_PhysAverageSimTime = 0; |
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g_PhysWorldObject = PhysCreateWorld( GetWorldEntity() ); |
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g_pShadowEntities = new CEntityList; |
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#ifdef PORTAL |
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g_pShadowEntities_Main = g_pShadowEntities; |
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#endif |
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PrecachePhysicsSounds(); |
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m_bPaused = true; |
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} |
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void CPhysicsHook::LevelInitPostEntity() |
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{ |
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m_bPaused = false; |
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} |
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void CPhysicsHook::LevelShutdownPreEntity() |
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{ |
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if ( !physenv ) |
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return; |
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physenv->SetQuickDelete( true ); |
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} |
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void CPhysicsHook::LevelShutdownPostEntity() |
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{ |
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if ( !physenv ) |
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return; |
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g_pPhysSaveRestoreManager->ForgetAllModels(); |
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g_Collisions.LevelShutdown(); |
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physics->DestroyEnvironment( physenv ); |
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physenv = NULL; |
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physics->DestroyObjectPairHash( g_EntityCollisionHash ); |
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g_EntityCollisionHash = NULL; |
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physics->DestroyAllCollisionSets(); |
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g_PhysWorldObject = NULL; |
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delete g_pShadowEntities; |
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g_pShadowEntities = NULL; |
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m_impactSounds.RemoveAll(); |
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m_breakSounds.RemoveAll(); |
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m_massCenterOverrides.Purge(); |
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FlushVehicleScripts(); |
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} |
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bool CPhysicsHook::FindOrAddVehicleScript( const char *pScriptName, vehicleparams_t *pVehicle, vehiclesounds_t *pSounds ) |
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{ |
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bool bLoadedSounds = false; |
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int index = -1; |
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for ( int i = 0; i < m_vehicleScripts.Count(); i++ ) |
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{ |
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if ( !Q_stricmp(m_vehicleScripts[i].scriptName.ToCStr(), pScriptName) ) |
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{ |
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index = i; |
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bLoadedSounds = true; |
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break; |
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} |
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} |
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if ( index < 0 ) |
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{ |
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byte *pFile = UTIL_LoadFileForMe( pScriptName, NULL ); |
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if ( pFile ) |
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{ |
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// new script, parse it and write to the table |
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index = m_vehicleScripts.AddToTail(); |
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m_vehicleScripts[index].scriptName = AllocPooledString(pScriptName); |
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m_vehicleScripts[index].sounds.Init(); |
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IVPhysicsKeyParser *pParse = physcollision->VPhysicsKeyParserCreate( (char *)pFile ); |
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while ( !pParse->Finished() ) |
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{ |
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const char *pBlock = pParse->GetCurrentBlockName(); |
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if ( !strcmpi( pBlock, "vehicle" ) ) |
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{ |
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pParse->ParseVehicle( &m_vehicleScripts[index].params, NULL ); |
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} |
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else if ( !Q_stricmp( pBlock, "vehicle_sounds" ) ) |
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{ |
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bLoadedSounds = true; |
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CVehicleSoundsParser soundParser; |
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pParse->ParseCustom( &m_vehicleScripts[index].sounds, &soundParser ); |
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} |
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else |
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{ |
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pParse->SkipBlock(); |
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} |
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} |
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physcollision->VPhysicsKeyParserDestroy( pParse ); |
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UTIL_FreeFile( pFile ); |
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} |
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} |
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if ( index >= 0 ) |
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{ |
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if ( pVehicle ) |
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{ |
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*pVehicle = m_vehicleScripts[index].params; |
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} |
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if ( pSounds ) |
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{ |
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// We must pass back valid data here! |
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if ( bLoadedSounds == false ) |
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return false; |
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*pSounds = m_vehicleScripts[index].sounds; |
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} |
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return true; |
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} |
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return false; |
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} |
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// called after entities think |
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void CPhysicsHook::FrameUpdatePostEntityThink( ) |
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{ |
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VPROF_BUDGET( "CPhysicsHook::FrameUpdatePostEntityThink", VPROF_BUDGETGROUP_PHYSICS ); |
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// Tracker 24846: If game is paused, don't simulate vphysics |
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float interval = ( gpGlobals->frametime > 0.0f ) ? TICK_INTERVAL : 0.0f; |
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// update the physics simulation, not we don't use gpGlobals->frametime, since that can be 30 msec or 15 msec |
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// depending on whether IsSimulatingOnAlternateTicks is true or not |
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if ( CBaseEntity::IsSimulatingOnAlternateTicks() ) |
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{ |
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m_isFinalTick = false; |
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#ifdef PORTAL //slight detour if we're the portal mod |
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PortalPhysFrame( interval ); |
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#else |
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PhysFrame( interval ); |
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#endif |
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} |
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m_isFinalTick = true; |
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#ifdef PORTAL //slight detour if we're the portal mod |
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PortalPhysFrame( interval ); |
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#else |
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PhysFrame( interval ); |
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#endif |
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} |
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void CPhysicsHook::PreClientUpdate() |
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{ |
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m_impactSoundTime += gpGlobals->frametime; |
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if ( m_impactSoundTime > 0.05f ) |
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{ |
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physicssound::PlayImpactSounds( m_impactSounds ); |
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m_impactSoundTime = 0.0f; |
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physicssound::PlayBreakSounds( m_breakSounds ); |
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} |
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} |
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bool PhysIsFinalTick() |
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{ |
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return g_PhysicsHook.m_isFinalTick; |
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} |
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IPhysicsObject *PhysCreateWorld( CBaseEntity *pWorld ) |
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{ |
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staticpropmgr->CreateVPhysicsRepresentations( physenv, &g_SolidSetup, pWorld ); |
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return PhysCreateWorld_Shared( pWorld, modelinfo->GetVCollide(1), g_PhysDefaultObjectParams ); |
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} |
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// vehicle wheels can only collide with things that can't get stuck in them during game physics |
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// because they aren't in the game physics world at present |
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static bool WheelCollidesWith( IPhysicsObject *pObj, CBaseEntity *pEntity ) |
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{ |
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#if defined( INVASION_DLL ) |
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if ( pEntity->GetCollisionGroup() == TFCOLLISION_GROUP_OBJECT ) |
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return false; |
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#endif |
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// Cull against interactive debris |
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if ( pEntity->GetCollisionGroup() == COLLISION_GROUP_INTERACTIVE_DEBRIS ) |
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return false; |
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// Hit physics ents |
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if ( pEntity->GetMoveType() == MOVETYPE_PUSH || pEntity->GetMoveType() == MOVETYPE_VPHYSICS || pObj->IsStatic() ) |
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return true; |
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return false; |
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} |
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CCollisionEvent::CCollisionEvent() |
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{ |
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m_inCallback = 0; |
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m_bBufferTouchEvents = false; |
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m_lastTickFrictionError = 0; |
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} |
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int CCollisionEvent::ShouldCollide( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1 ) |
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#if _DEBUG |
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{ |
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int x0 = ShouldCollide_2(pObj0, pObj1, pGameData0, pGameData1); |
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int x1 = ShouldCollide_2(pObj1, pObj0, pGameData1, pGameData0); |
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Assert(x0==x1); |
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return x0; |
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} |
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int CCollisionEvent::ShouldCollide_2( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1 ) |
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#endif |
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{ |
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CallbackContext check(this); |
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CBaseEntity *pEntity0 = static_cast<CBaseEntity *>(pGameData0); |
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CBaseEntity *pEntity1 = static_cast<CBaseEntity *>(pGameData1); |
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if ( !pEntity0 || !pEntity1 ) |
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return 1; |
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unsigned short gameFlags0 = pObj0->GetGameFlags(); |
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unsigned short gameFlags1 = pObj1->GetGameFlags(); |
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if ( pEntity0 == pEntity1 ) |
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{ |
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// allow all-or-nothing per-entity disable |
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if ( (gameFlags0 | gameFlags1) & FVPHYSICS_NO_SELF_COLLISIONS ) |
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return 0; |
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IPhysicsCollisionSet *pSet = physics->FindCollisionSet( pEntity0->GetModelIndex() ); |
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if ( pSet ) |
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return pSet->ShouldCollide( pObj0->GetGameIndex(), pObj1->GetGameIndex() ); |
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return 1; |
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} |
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// objects that are both constrained to the world don't collide with each other |
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if ( (gameFlags0 & gameFlags1) & FVPHYSICS_CONSTRAINT_STATIC ) |
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{ |
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return 0; |
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} |
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// Special collision rules for vehicle wheels |
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// Their entity collides with stuff using the normal rules, but they |
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// have different rules than the vehicle body for various reasons. |
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// sort of a hack because we don't have spheres to represent them in the game |
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// world for speculative collisions. |
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if ( pObj0->GetCallbackFlags() & CALLBACK_IS_VEHICLE_WHEEL ) |
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{ |
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if ( !WheelCollidesWith( pObj1, pEntity1 ) ) |
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return false; |
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} |
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if ( pObj1->GetCallbackFlags() & CALLBACK_IS_VEHICLE_WHEEL ) |
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{ |
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if ( !WheelCollidesWith( pObj0, pEntity0 ) ) |
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return false; |
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} |
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if ( pEntity0->ForceVPhysicsCollide( pEntity1 ) || pEntity1->ForceVPhysicsCollide( pEntity0 ) ) |
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return 1; |
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if ( pEntity0->edict() && pEntity1->edict() ) |
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{ |
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// don't collide with your owner |
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if ( pEntity0->GetOwnerEntity() == pEntity1 || pEntity1->GetOwnerEntity() == pEntity0 ) |
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return 0; |
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} |
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if ( pEntity0->GetMoveParent() || pEntity1->GetMoveParent() ) |
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{ |
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CBaseEntity *pParent0 = pEntity0->GetRootMoveParent(); |
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CBaseEntity *pParent1 = pEntity1->GetRootMoveParent(); |
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// NOTE: Don't let siblings/parents collide. If you want this behavior, do it |
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// with constraints, not hierarchy! |
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if ( pParent0 == pParent1 ) |
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return 0; |
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if ( g_EntityCollisionHash->IsObjectPairInHash( pParent0, pParent1 ) ) |
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return 0; |
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IPhysicsObject *p0 = pParent0->VPhysicsGetObject(); |
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IPhysicsObject *p1 = pParent1->VPhysicsGetObject(); |
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if ( p0 && p1 ) |
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{ |
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if ( g_EntityCollisionHash->IsObjectPairInHash( p0, p1 ) ) |
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return 0; |
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} |
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} |
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int solid0 = pEntity0->GetSolid(); |
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int solid1 = pEntity1->GetSolid(); |
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int nSolidFlags0 = pEntity0->GetSolidFlags(); |
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int nSolidFlags1 = pEntity1->GetSolidFlags(); |
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int movetype0 = pEntity0->GetMoveType(); |
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int movetype1 = pEntity1->GetMoveType(); |
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// entities with non-physical move parents or entities with MOVETYPE_PUSH |
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// are considered as "AI movers". They are unchanged by collision; they exert |
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// physics forces on the rest of the system. |
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bool aiMove0 = (movetype0==MOVETYPE_PUSH) ? true : false; |
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bool aiMove1 = (movetype1==MOVETYPE_PUSH) ? true : false; |
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if ( pEntity0->GetMoveParent() ) |
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{ |
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// if the object & its parent are both MOVETYPE_VPHYSICS, then this must be a special case |
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// like a prop_ragdoll_attached |
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if ( !(movetype0 == MOVETYPE_VPHYSICS && pEntity0->GetRootMoveParent()->GetMoveType() == MOVETYPE_VPHYSICS) ) |
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{ |
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aiMove0 = true; |
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} |
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} |
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if ( pEntity1->GetMoveParent() ) |
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{ |
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// if the object & its parent are both MOVETYPE_VPHYSICS, then this must be a special case. |
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if ( !(movetype1 == MOVETYPE_VPHYSICS && pEntity1->GetRootMoveParent()->GetMoveType() == MOVETYPE_VPHYSICS) ) |
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{ |
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aiMove1 = true; |
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} |
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} |
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// AI movers don't collide with the world/static/pinned objects or other AI movers |
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if ( (aiMove0 && !pObj1->IsMoveable()) || |
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(aiMove1 && !pObj0->IsMoveable()) || |
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(aiMove0 && aiMove1) ) |
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return 0; |
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// two objects under shadow control should not collide. The AI will figure it out |
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if ( pObj0->GetShadowController() && pObj1->GetShadowController() ) |
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return 0; |
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// BRJ 1/24/03 |
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// You can remove the assert if it's problematic; I *believe* this condition |
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// should be met, but I'm not sure. |
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//Assert ( (solid0 != SOLID_NONE) && (solid1 != SOLID_NONE) ); |
|
if ( (solid0 == SOLID_NONE) || (solid1 == SOLID_NONE) ) |
|
return 0; |
|
|
|
// not solid doesn't collide with anything |
|
if ( (nSolidFlags0|nSolidFlags1) & FSOLID_NOT_SOLID ) |
|
{ |
|
// might be a vphysics trigger, collide with everything but "not solid" |
|
if ( pObj0->IsTrigger() && !(nSolidFlags1 & FSOLID_NOT_SOLID) ) |
|
return 1; |
|
if ( pObj1->IsTrigger() && !(nSolidFlags0 & FSOLID_NOT_SOLID) ) |
|
return 1; |
|
|
|
return 0; |
|
} |
|
|
|
if ( (nSolidFlags0 & FSOLID_TRIGGER) && |
|
!(solid1 == SOLID_VPHYSICS || solid1 == SOLID_BSP || movetype1 == MOVETYPE_VPHYSICS) ) |
|
return 0; |
|
|
|
if ( (nSolidFlags1 & FSOLID_TRIGGER) && |
|
!(solid0 == SOLID_VPHYSICS || solid0 == SOLID_BSP || movetype0 == MOVETYPE_VPHYSICS) ) |
|
return 0; |
|
|
|
if ( !g_pGameRules->ShouldCollide( pEntity0->GetCollisionGroup(), pEntity1->GetCollisionGroup() ) ) |
|
return 0; |
|
|
|
// check contents |
|
if ( !(pObj0->GetContents() & pEntity1->PhysicsSolidMaskForEntity()) || !(pObj1->GetContents() & pEntity0->PhysicsSolidMaskForEntity()) ) |
|
return 0; |
|
|
|
if ( g_EntityCollisionHash->IsObjectPairInHash( pGameData0, pGameData1 ) ) |
|
return 0; |
|
|
|
if ( g_EntityCollisionHash->IsObjectPairInHash( pObj0, pObj1 ) ) |
|
return 0; |
|
|
|
return 1; |
|
} |
|
|
|
bool FindMaxContact( IPhysicsObject *pObject, float minForce, IPhysicsObject **pOtherObject, Vector *contactPos, Vector *pForce ) |
|
{ |
|
float mass = pObject->GetMass(); |
|
float maxForce = minForce; |
|
*pOtherObject = NULL; |
|
IPhysicsFrictionSnapshot *pSnapshot = pObject->CreateFrictionSnapshot(); |
|
while ( pSnapshot->IsValid() ) |
|
{ |
|
IPhysicsObject *pOther = pSnapshot->GetObject(1); |
|
if ( pOther->IsMoveable() && pOther->GetMass() > mass ) |
|
{ |
|
float force = pSnapshot->GetNormalForce(); |
|
if ( force > maxForce ) |
|
{ |
|
*pOtherObject = pOther; |
|
pSnapshot->GetContactPoint( *contactPos ); |
|
pSnapshot->GetSurfaceNormal( *pForce ); |
|
*pForce *= force; |
|
} |
|
} |
|
pSnapshot->NextFrictionData(); |
|
} |
|
pObject->DestroyFrictionSnapshot( pSnapshot ); |
|
if ( *pOtherObject ) |
|
return true; |
|
|
|
return false; |
|
} |
|
|
|
bool CCollisionEvent::ShouldFreezeObject( IPhysicsObject *pObject ) |
|
{ |
|
extern bool PropIsGib(CBaseEntity *pEntity); |
|
// for now, don't apply a per-object limit to ai MOVETYPE_PUSH objects |
|
// NOTE: If this becomes a problem (too many collision checks this tick) we should add a path |
|
// to inform the logic in VPhysicsUpdatePusher() about the limit being applied so |
|
// that it doesn't falsely block the object when it's simply been temporarily frozen |
|
// for performance reasons |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( pEntity ) |
|
{ |
|
if (pEntity->GetMoveType() == MOVETYPE_PUSH ) |
|
return false; |
|
|
|
// don't limit vehicle collisions either, limit can make breaking through a pile of breakable |
|
// props very hitchy |
|
if (pEntity->GetServerVehicle() && !(pObject->GetCallbackFlags() & CALLBACK_IS_VEHICLE_WHEEL)) |
|
return false; |
|
} |
|
|
|
// if we're freezing a debris object, then it's probably due to some kind of solver issue |
|
// usually this is a large object resting on the debris object in question which is not |
|
// very stable. |
|
// After doing the experiment of constraining the dynamic range of mass while solving friction |
|
// contacts, I like the results of this tradeoff better. So damage or remove the debris object |
|
// wherever possible once we hit this case: |
|
if ( IsDebris( pEntity->GetCollisionGroup()) && !pEntity->IsNPC() ) |
|
{ |
|
IPhysicsObject *pOtherObject = NULL; |
|
Vector contactPos; |
|
Vector force; |
|
// find the contact with the moveable object applying the most contact force |
|
if ( FindMaxContact( pObject, pObject->GetMass() * 10, &pOtherObject, &contactPos, &force ) ) |
|
{ |
|
CBaseEntity *pOther = static_cast<CBaseEntity *>(pOtherObject->GetGameData()); |
|
// this object can take damage, crush it |
|
if ( pEntity->m_takedamage > DAMAGE_EVENTS_ONLY ) |
|
{ |
|
CTakeDamageInfo dmgInfo( pOther, pOther, force, contactPos, force.Length() * 0.1f, DMG_CRUSH ); |
|
PhysCallbackDamage( pEntity, dmgInfo ); |
|
} |
|
else |
|
{ |
|
// can't be damaged, so do something else: |
|
if ( PropIsGib(pEntity) ) |
|
{ |
|
// it's always safe to delete gibs, so kill this one to avoid simulation problems |
|
PhysCallbackRemove( pEntity->NetworkProp() ); |
|
} |
|
else |
|
{ |
|
// not a gib, create a solver: |
|
// UNDONE: Add a property to override this in gameplay critical scenarios? |
|
g_PostSimulationQueue.QueueCall( EntityPhysics_CreateSolver, pOther, pEntity, true, 1.0f ); |
|
} |
|
} |
|
} |
|
} |
|
return true; |
|
} |
|
|
|
bool CCollisionEvent::ShouldFreezeContacts( IPhysicsObject **pObjectList, int objectCount ) |
|
{ |
|
if ( m_lastTickFrictionError > gpGlobals->tickcount || m_lastTickFrictionError < (gpGlobals->tickcount-1) ) |
|
{ |
|
DevWarning("Performance Warning: large friction system (%d objects)!!!\n", objectCount ); |
|
#if _DEBUG |
|
for ( int i = 0; i < objectCount; i++ ) |
|
{ |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObjectList[i]->GetGameData()); |
|
pEntity->m_debugOverlays |= OVERLAY_ABSBOX_BIT | OVERLAY_PIVOT_BIT; |
|
} |
|
#endif |
|
} |
|
m_lastTickFrictionError = gpGlobals->tickcount; |
|
return false; |
|
} |
|
|
|
// NOTE: these are fully edge triggered events |
|
// called when an object wakes up (starts simulating) |
|
void CCollisionEvent::ObjectWake( IPhysicsObject *pObject ) |
|
{ |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( pEntity && pEntity->HasDataObjectType( VPHYSICSWATCHER ) ) |
|
{ |
|
ReportVPhysicsStateChanged( pObject, pEntity, true ); |
|
} |
|
} |
|
// called when an object goes to sleep (no longer simulating) |
|
void CCollisionEvent::ObjectSleep( IPhysicsObject *pObject ) |
|
{ |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( pEntity && pEntity->HasDataObjectType( VPHYSICSWATCHER ) ) |
|
{ |
|
ReportVPhysicsStateChanged( pObject, pEntity, false ); |
|
} |
|
} |
|
|
|
bool PhysShouldCollide( IPhysicsObject *pObj0, IPhysicsObject *pObj1 ) |
|
{ |
|
void *pGameData0 = pObj0->GetGameData(); |
|
void *pGameData1 = pObj1->GetGameData(); |
|
if ( !pGameData0 || !pGameData1 ) |
|
return false; |
|
return g_Collisions.ShouldCollide( pObj0, pObj1, pGameData0, pGameData1 ) ? true : false; |
|
} |
|
|
|
bool PhysIsInCallback() |
|
{ |
|
if ( (physenv && physenv->IsInSimulation()) || g_Collisions.IsInCallback() ) |
|
return true; |
|
|
|
return false; |
|
} |
|
|
|
|
|
static void ReportPenetration( CBaseEntity *pEntity, float duration ) |
|
{ |
|
if ( pEntity->GetMoveType() == MOVETYPE_VPHYSICS ) |
|
{ |
|
if ( g_pDeveloper->GetInt() > 1 ) |
|
{ |
|
pEntity->m_debugOverlays |= OVERLAY_ABSBOX_BIT; |
|
} |
|
|
|
pEntity->AddTimedOverlay( UTIL_VarArgs("VPhysics Penetration Error (%s)!", pEntity->GetDebugName()), duration ); |
|
} |
|
} |
|
|
|
static bool IsDebris( int collisionGroup ) |
|
{ |
|
switch ( collisionGroup ) |
|
{ |
|
case COLLISION_GROUP_DEBRIS: |
|
case COLLISION_GROUP_INTERACTIVE_DEBRIS: |
|
case COLLISION_GROUP_DEBRIS_TRIGGER: |
|
return true; |
|
default: |
|
break; |
|
} |
|
return false; |
|
} |
|
|
|
static void UpdateEntityPenetrationFlag( CBaseEntity *pEntity, bool isPenetrating ) |
|
{ |
|
if ( !pEntity ) |
|
return; |
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int count = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
for ( int i = 0; i < count; i++ ) |
|
{ |
|
if ( !pList[i]->IsStatic() ) |
|
{ |
|
if ( isPenetrating ) |
|
{ |
|
PhysSetGameFlags( pList[i], FVPHYSICS_PENETRATING ); |
|
} |
|
else |
|
{ |
|
PhysClearGameFlags( pList[i], FVPHYSICS_PENETRATING ); |
|
} |
|
} |
|
} |
|
} |
|
|
|
void CCollisionEvent::GetListOfPenetratingEntities( CBaseEntity *pSearch, CUtlVector<CBaseEntity *> &list ) |
|
{ |
|
for ( int i = m_penetrateEvents.Count()-1; i >= 0; --i ) |
|
{ |
|
if ( m_penetrateEvents[i].hEntity0 == pSearch && m_penetrateEvents[i].hEntity1.Get() != NULL ) |
|
{ |
|
list.AddToTail( m_penetrateEvents[i].hEntity1 ); |
|
} |
|
else if ( m_penetrateEvents[i].hEntity1 == pSearch && m_penetrateEvents[i].hEntity0.Get() != NULL ) |
|
{ |
|
list.AddToTail( m_penetrateEvents[i].hEntity0 ); |
|
} |
|
} |
|
} |
|
|
|
void CCollisionEvent::UpdatePenetrateEvents( void ) |
|
{ |
|
for ( int i = m_penetrateEvents.Count()-1; i >= 0; --i ) |
|
{ |
|
CBaseEntity *pEntity0 = m_penetrateEvents[i].hEntity0; |
|
CBaseEntity *pEntity1 = m_penetrateEvents[i].hEntity1; |
|
|
|
if ( m_penetrateEvents[i].collisionState == COLLSTATE_TRYDISABLE ) |
|
{ |
|
if ( pEntity0 && pEntity1 ) |
|
{ |
|
IPhysicsObject *pObj0 = pEntity0->VPhysicsGetObject(); |
|
if ( pObj0 ) |
|
{ |
|
PhysForceEntityToSleep( pEntity0, pObj0 ); |
|
} |
|
IPhysicsObject *pObj1 = pEntity1->VPhysicsGetObject(); |
|
if ( pObj1 ) |
|
{ |
|
PhysForceEntityToSleep( pEntity1, pObj1 ); |
|
} |
|
m_penetrateEvents[i].collisionState = COLLSTATE_DISABLED; |
|
continue; |
|
} |
|
// missing entity or object, clear event |
|
} |
|
else if ( m_penetrateEvents[i].collisionState == COLLSTATE_TRYNPCSOLVER ) |
|
{ |
|
if ( pEntity0 && pEntity1 ) |
|
{ |
|
CAI_BaseNPC *pNPC = pEntity0->MyNPCPointer(); |
|
CBaseEntity *pBlocker = pEntity1; |
|
if ( !pNPC ) |
|
{ |
|
pNPC = pEntity1->MyNPCPointer(); |
|
Assert(pNPC); |
|
pBlocker = pEntity0; |
|
} |
|
NPCPhysics_CreateSolver( pNPC, pBlocker, true, 1.0f ); |
|
} |
|
// transferred to solver, clear event |
|
} |
|
else if ( m_penetrateEvents[i].collisionState == COLLSTATE_TRYENTITYSOLVER ) |
|
{ |
|
if ( pEntity0 && pEntity1 ) |
|
{ |
|
if ( !IsDebris(pEntity1->GetCollisionGroup()) || pEntity1->GetMoveType() != MOVETYPE_VPHYSICS ) |
|
{ |
|
CBaseEntity *pTmp = pEntity0; |
|
pEntity0 = pEntity1; |
|
pEntity1 = pTmp; |
|
} |
|
EntityPhysics_CreateSolver( pEntity0, pEntity1, true, 1.0f ); |
|
} |
|
// transferred to solver, clear event |
|
} |
|
else if ( gpGlobals->curtime - m_penetrateEvents[i].timeStamp > 1.0 ) |
|
{ |
|
if ( m_penetrateEvents[i].collisionState == COLLSTATE_DISABLED ) |
|
{ |
|
if ( pEntity0 && pEntity1 ) |
|
{ |
|
IPhysicsObject *pObj0 = pEntity0->VPhysicsGetObject(); |
|
IPhysicsObject *pObj1 = pEntity1->VPhysicsGetObject(); |
|
if ( pObj0 && pObj1 ) |
|
{ |
|
m_penetrateEvents[i].collisionState = COLLSTATE_ENABLED; |
|
continue; |
|
} |
|
} |
|
} |
|
// haven't penetrated for 1 second, so remove |
|
} |
|
else |
|
{ |
|
// recent timestamp, don't remove the event yet |
|
continue; |
|
} |
|
// done, clear event |
|
m_penetrateEvents.FastRemove(i); |
|
UpdateEntityPenetrationFlag( pEntity0, false ); |
|
UpdateEntityPenetrationFlag( pEntity1, false ); |
|
} |
|
} |
|
|
|
penetrateevent_t &CCollisionEvent::FindOrAddPenetrateEvent( CBaseEntity *pEntity0, CBaseEntity *pEntity1 ) |
|
{ |
|
int index = -1; |
|
for ( int i = m_penetrateEvents.Count()-1; i >= 0; --i ) |
|
{ |
|
if ( m_penetrateEvents[i].hEntity0.Get() == pEntity0 && m_penetrateEvents[i].hEntity1.Get() == pEntity1 ) |
|
{ |
|
index = i; |
|
break; |
|
} |
|
} |
|
if ( index < 0 ) |
|
{ |
|
index = m_penetrateEvents.AddToTail(); |
|
penetrateevent_t &event = m_penetrateEvents[index]; |
|
event.hEntity0 = pEntity0; |
|
event.hEntity1 = pEntity1; |
|
event.startTime = gpGlobals->curtime; |
|
event.collisionState = COLLSTATE_ENABLED; |
|
UpdateEntityPenetrationFlag( pEntity0, true ); |
|
UpdateEntityPenetrationFlag( pEntity1, true ); |
|
} |
|
penetrateevent_t &event = m_penetrateEvents[index]; |
|
event.timeStamp = gpGlobals->curtime; |
|
return event; |
|
} |
|
|
|
|
|
|
|
static ConVar phys_penetration_error_time( "phys_penetration_error_time", "10", 0, "Controls the duration of vphysics penetration error boxes." ); |
|
|
|
static bool CanResolvePenetrationWithNPC( CBaseEntity *pEntity, IPhysicsObject *pObject ) |
|
{ |
|
if ( pEntity->GetMoveType() == MOVETYPE_VPHYSICS ) |
|
{ |
|
// hinged objects won't be able to be pushed out anyway, so don't try the npc solver |
|
if ( !pObject->IsHinged() && !pObject->IsAttachedToConstraint(true) ) |
|
{ |
|
if ( pObject->IsMoveable() || pEntity->GetServerVehicle() ) |
|
return true; |
|
} |
|
} |
|
return false; |
|
} |
|
|
|
int CCollisionEvent::ShouldSolvePenetration( IPhysicsObject *pObj0, IPhysicsObject *pObj1, void *pGameData0, void *pGameData1, float dt ) |
|
{ |
|
CallbackContext check(this); |
|
|
|
// Pointers to the entity for each physics object |
|
CBaseEntity *pEntity0 = static_cast<CBaseEntity *>(pGameData0); |
|
CBaseEntity *pEntity1 = static_cast<CBaseEntity *>(pGameData1); |
|
|
|
// this can get called as entities are being constructed on the other side of a game load or level transition |
|
// Some entities may not be fully constructed, so don't call into their code until the level is running |
|
if ( g_PhysicsHook.m_bPaused ) |
|
return true; |
|
|
|
// solve it yourself here and return 0, or have the default implementation do it |
|
if ( pEntity0 > pEntity1 ) |
|
{ |
|
// swap sort |
|
CBaseEntity *pTmp = pEntity0; |
|
pEntity0 = pEntity1; |
|
pEntity1 = pTmp; |
|
IPhysicsObject *pTmpObj = pObj0; |
|
pObj0 = pObj1; |
|
pObj1 = pTmpObj; |
|
} |
|
if ( pEntity0 == pEntity1 ) |
|
{ |
|
if ( pObj0->GetGameFlags() & FVPHYSICS_PART_OF_RAGDOLL ) |
|
{ |
|
DevMsg(2, "Solving ragdoll self penetration! %s (%s) (%d v %d)\n", pObj0->GetName(), pEntity0->GetDebugName(), pObj0->GetGameIndex(), pObj1->GetGameIndex() ); |
|
ragdoll_t *pRagdoll = Ragdoll_GetRagdoll( pEntity0 ); |
|
pRagdoll->pGroup->SolvePenetration( pObj0, pObj1 ); |
|
return false; |
|
} |
|
} |
|
penetrateevent_t &event = FindOrAddPenetrateEvent( pEntity0, pEntity1 ); |
|
float eventTime = gpGlobals->curtime - event.startTime; |
|
|
|
// NPC vs. physics object. Create a game DLL solver and remove this event |
|
if ( (pEntity0->MyNPCPointer() && CanResolvePenetrationWithNPC(pEntity1, pObj1)) || |
|
(pEntity1->MyNPCPointer() && CanResolvePenetrationWithNPC(pEntity0, pObj0)) ) |
|
{ |
|
event.collisionState = COLLSTATE_TRYNPCSOLVER; |
|
} |
|
|
|
if ( (IsDebris( pEntity0->GetCollisionGroup() ) && !pObj1->IsStatic()) || (IsDebris( pEntity1->GetCollisionGroup() ) && !pObj0->IsStatic()) ) |
|
{ |
|
if ( eventTime > 0.5f ) |
|
{ |
|
//Msg("Debris stuck in non-static!\n"); |
|
event.collisionState = COLLSTATE_TRYENTITYSOLVER; |
|
} |
|
} |
|
#if _DEBUG |
|
if ( phys_dontprintint.GetBool() == false ) |
|
{ |
|
const char *pName1 = STRING(pEntity0->GetModelName()); |
|
const char *pName2 = STRING(pEntity1->GetModelName()); |
|
if ( pEntity0 == pEntity1 ) |
|
{ |
|
int index0 = physcollision->CollideIndex( pObj0->GetCollide() ); |
|
int index1 = physcollision->CollideIndex( pObj1->GetCollide() ); |
|
DevMsg(1, "***Inter-penetration on %s (%d & %d) (%.0f, %.0f)\n", pName1?pName1:"(null)", index0, index1, gpGlobals->curtime, eventTime ); |
|
} |
|
else |
|
{ |
|
DevMsg(1, "***Inter-penetration between %s(%s) AND %s(%s) (%.0f, %.0f)\n", pName1?pName1:"(null)", pEntity0->GetDebugName(), pName2?pName2:"(null)", pEntity1->GetDebugName(), gpGlobals->curtime, eventTime ); |
|
} |
|
} |
|
#endif |
|
|
|
if ( eventTime > 3 ) |
|
{ |
|
// don't report penetrations on ragdolls with themselves, or outside of developer mode |
|
if ( g_pDeveloper->GetInt() && pEntity0 != pEntity1 ) |
|
{ |
|
ReportPenetration( pEntity0, phys_penetration_error_time.GetFloat() ); |
|
ReportPenetration( pEntity1, phys_penetration_error_time.GetFloat() ); |
|
} |
|
event.startTime = gpGlobals->curtime; |
|
// don't put players or game physics controlled objects to sleep |
|
if ( !pEntity0->IsPlayer() && !pEntity1->IsPlayer() && !pObj0->GetShadowController() && !pObj1->GetShadowController() ) |
|
{ |
|
// two objects have been stuck for more than 3 seconds, try disabling simulation |
|
event.collisionState = COLLSTATE_TRYDISABLE; |
|
return false; |
|
} |
|
} |
|
|
|
|
|
return true; |
|
} |
|
|
|
|
|
void CCollisionEvent::FluidStartTouch( IPhysicsObject *pObject, IPhysicsFluidController *pFluid ) |
|
{ |
|
CallbackContext check(this); |
|
if ( ( pObject == NULL ) || ( pFluid == NULL ) ) |
|
return; |
|
|
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( !pEntity ) |
|
return; |
|
|
|
pEntity->AddEFlags( EFL_TOUCHING_FLUID ); |
|
pEntity->OnEntityEvent( ENTITY_EVENT_WATER_TOUCH, (void*)pFluid->GetContents() ); |
|
|
|
float timeSinceLastCollision = DeltaTimeSinceLastFluid( pEntity ); |
|
if ( timeSinceLastCollision < 0.5f ) |
|
return; |
|
|
|
// UNDONE: Use this for splash logic instead? |
|
// UNDONE: Use angular term too - push splashes in rotAxs cross normal direction? |
|
Vector normal; |
|
float dist; |
|
pFluid->GetSurfacePlane( &normal, &dist ); |
|
Vector vel; |
|
AngularImpulse angVel; |
|
pObject->GetVelocity( &vel, &angVel ); |
|
Vector unitVel = vel; |
|
VectorNormalize( unitVel ); |
|
|
|
// normal points out of the surface, we want the direction that points in |
|
float dragScale = pFluid->GetDensity() * physenv->GetSimulationTimestep(); |
|
normal = -normal; |
|
float linearScale = 0.5f * DotProduct( unitVel, normal ) * pObject->CalculateLinearDrag( normal ) * dragScale; |
|
linearScale = clamp( linearScale, 0.0f, 1.0f ); |
|
vel *= -linearScale; |
|
|
|
// UNDONE: Figure out how much of the surface area has crossed the water surface and scale angScale by that |
|
// For now assume 25% |
|
Vector rotAxis = angVel; |
|
VectorNormalize(rotAxis); |
|
float angScale = 0.25f * pObject->CalculateAngularDrag( angVel ) * dragScale; |
|
angScale = clamp( angScale, 0.0f, 1.0f ); |
|
angVel *= -angScale; |
|
|
|
// compute the splash before we modify the velocity |
|
PhysicsSplash( pFluid, pObject, pEntity ); |
|
|
|
// now damp out some motion toward the surface |
|
pObject->AddVelocity( &vel, &angVel ); |
|
} |
|
|
|
void CCollisionEvent::FluidEndTouch( IPhysicsObject *pObject, IPhysicsFluidController *pFluid ) |
|
{ |
|
CallbackContext check(this); |
|
if ( ( pObject == NULL ) || ( pFluid == NULL ) ) |
|
return; |
|
|
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( !pEntity ) |
|
return; |
|
|
|
float timeSinceLastCollision = DeltaTimeSinceLastFluid( pEntity ); |
|
if ( timeSinceLastCollision >= 0.5f ) |
|
{ |
|
PhysicsSplash( pFluid, pObject, pEntity ); |
|
} |
|
|
|
pEntity->RemoveEFlags( EFL_TOUCHING_FLUID ); |
|
pEntity->OnEntityEvent( ENTITY_EVENT_WATER_UNTOUCH, (void*)pFluid->GetContents() ); |
|
} |
|
|
|
class CSkipKeys : public IVPhysicsKeyHandler |
|
{ |
|
public: |
|
virtual void ParseKeyValue( void *pData, const char *pKey, const char *pValue ) {} |
|
virtual void SetDefaults( void *pData ) {} |
|
}; |
|
|
|
void PhysSolidOverride( solid_t &solid, string_t overrideScript ) |
|
{ |
|
if ( overrideScript != NULL_STRING) |
|
{ |
|
// parser destroys this data |
|
bool collisions = solid.params.enableCollisions; |
|
|
|
char pTmpString[4096]; |
|
|
|
// write a header for a solid_t |
|
Q_strncpy( pTmpString, "solid { ", sizeof(pTmpString) ); |
|
|
|
// suck out the comma delimited tokens and turn them into quoted key/values |
|
char szToken[256]; |
|
const char *pStr = nexttoken(szToken, STRING(overrideScript), ','); |
|
while ( szToken[0] != 0 ) |
|
{ |
|
Q_strncat( pTmpString, "\"", sizeof(pTmpString), COPY_ALL_CHARACTERS ); |
|
Q_strncat( pTmpString, szToken, sizeof(pTmpString), COPY_ALL_CHARACTERS ); |
|
Q_strncat( pTmpString, "\" ", sizeof(pTmpString), COPY_ALL_CHARACTERS ); |
|
pStr = nexttoken(szToken, pStr, ','); |
|
} |
|
// terminate the script |
|
Q_strncat( pTmpString, "}", sizeof(pTmpString), COPY_ALL_CHARACTERS ); |
|
|
|
// parse that sucker |
|
IVPhysicsKeyParser *pParse = physcollision->VPhysicsKeyParserCreate( pTmpString ); |
|
CSkipKeys tmp; |
|
pParse->ParseSolid( &solid, &tmp ); |
|
physcollision->VPhysicsKeyParserDestroy( pParse ); |
|
|
|
// parser destroys this data |
|
solid.params.enableCollisions = collisions; |
|
} |
|
} |
|
|
|
void PhysSetMassCenterOverride( masscenteroverride_t &override ) |
|
{ |
|
if ( override.entityName != NULL_STRING ) |
|
{ |
|
g_PhysicsHook.m_massCenterOverrides.AddToTail( override ); |
|
} |
|
} |
|
|
|
// NOTE: This will remove the entry from the list as well |
|
int PhysGetMassCenterOverrideIndex( string_t name ) |
|
{ |
|
if ( name != NULL_STRING && g_PhysicsHook.m_massCenterOverrides.Count() ) |
|
{ |
|
for ( int i = 0; i < g_PhysicsHook.m_massCenterOverrides.Count(); i++ ) |
|
{ |
|
if ( g_PhysicsHook.m_massCenterOverrides[i].entityName == name ) |
|
{ |
|
return i; |
|
} |
|
} |
|
} |
|
return -1; |
|
} |
|
|
|
void PhysGetMassCenterOverride( CBaseEntity *pEntity, vcollide_t *pCollide, solid_t &solidOut ) |
|
{ |
|
int index = PhysGetMassCenterOverrideIndex( pEntity->GetEntityName() ); |
|
|
|
if ( index >= 0 ) |
|
{ |
|
masscenteroverride_t &override = g_PhysicsHook.m_massCenterOverrides[index]; |
|
Vector massCenterWS = override.center; |
|
switch ( override.alignType ) |
|
{ |
|
case masscenteroverride_t::ALIGN_POINT: |
|
VectorITransform( massCenterWS, pEntity->EntityToWorldTransform(), solidOut.massCenterOverride ); |
|
break; |
|
case masscenteroverride_t::ALIGN_AXIS: |
|
{ |
|
Vector massCenterLocal, defaultMassCenterWS; |
|
physcollision->CollideGetMassCenter( pCollide->solids[solidOut.index], &massCenterLocal ); |
|
VectorTransform( massCenterLocal, pEntity->EntityToWorldTransform(), defaultMassCenterWS ); |
|
massCenterWS += override.axis * |
|
( DotProduct(defaultMassCenterWS,override.axis) - DotProduct( override.axis, override.center ) ); |
|
VectorITransform( massCenterWS, pEntity->EntityToWorldTransform(), solidOut.massCenterOverride ); |
|
} |
|
break; |
|
} |
|
g_PhysicsHook.m_massCenterOverrides.FastRemove( index ); |
|
|
|
if ( solidOut.massCenterOverride.Length() > DIST_EPSILON ) |
|
{ |
|
solidOut.params.massCenterOverride = &solidOut.massCenterOverride; |
|
} |
|
} |
|
} |
|
|
|
float PhysGetEntityMass( CBaseEntity *pEntity ) |
|
{ |
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int physCount = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
float otherMass = 0; |
|
for ( int i = 0; i < physCount; i++ ) |
|
{ |
|
otherMass += pList[i]->GetMass(); |
|
} |
|
|
|
return otherMass; |
|
} |
|
|
|
|
|
typedef void (*EntityCallbackFunction) ( CBaseEntity *pEntity ); |
|
|
|
void IterateActivePhysicsEntities( EntityCallbackFunction func ) |
|
{ |
|
int activeCount = physenv->GetActiveObjectCount(); |
|
IPhysicsObject **pActiveList = NULL; |
|
if ( activeCount ) |
|
{ |
|
pActiveList = (IPhysicsObject **)stackalloc( sizeof(IPhysicsObject *)*activeCount ); |
|
physenv->GetActiveObjects( pActiveList ); |
|
for ( int i = 0; i < activeCount; i++ ) |
|
{ |
|
CBaseEntity *pEntity = reinterpret_cast<CBaseEntity *>(pActiveList[i]->GetGameData()); |
|
if ( pEntity ) |
|
{ |
|
func( pEntity ); |
|
} |
|
} |
|
} |
|
} |
|
|
|
|
|
static void CallbackHighlight( CBaseEntity *pEntity ) |
|
{ |
|
pEntity->m_debugOverlays |= OVERLAY_ABSBOX_BIT | OVERLAY_PIVOT_BIT; |
|
} |
|
|
|
static void CallbackReport( CBaseEntity *pEntity ) |
|
{ |
|
const char *pName = STRING(pEntity->GetEntityName()); |
|
if ( !Q_strlen(pName) ) |
|
{ |
|
pName = STRING(pEntity->GetModelName()); |
|
} |
|
Msg( "%s - %s\n", pEntity->GetClassname(), pName ); |
|
} |
|
|
|
CON_COMMAND(physics_highlight_active, "Turns on the absbox for all active physics objects") |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
IterateActivePhysicsEntities( CallbackHighlight ); |
|
} |
|
|
|
CON_COMMAND(physics_report_active, "Lists all active physics objects") |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
IterateActivePhysicsEntities( CallbackReport ); |
|
} |
|
|
|
CON_COMMAND_F(surfaceprop, "Reports the surface properties at the cursor", FCVAR_CHEAT ) |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
CBasePlayer *pPlayer = UTIL_GetCommandClient(); |
|
|
|
trace_t tr; |
|
Vector forward; |
|
pPlayer->EyeVectors( &forward ); |
|
UTIL_TraceLine(pPlayer->EyePosition(), pPlayer->EyePosition() + forward * MAX_COORD_RANGE, |
|
MASK_SHOT_HULL|CONTENTS_GRATE|CONTENTS_DEBRIS, pPlayer, COLLISION_GROUP_NONE, &tr ); |
|
|
|
if ( tr.DidHit() ) |
|
{ |
|
const model_t *pModel = modelinfo->GetModel( tr.m_pEnt->GetModelIndex() ); |
|
const char *pModelName = STRING(tr.m_pEnt->GetModelName()); |
|
if ( tr.DidHitWorld() && tr.hitbox > 0 ) |
|
{ |
|
ICollideable *pCollide = staticpropmgr->GetStaticPropByIndex( tr.hitbox-1 ); |
|
pModel = pCollide->GetCollisionModel(); |
|
pModelName = modelinfo->GetModelName( pModel ); |
|
} |
|
CFmtStr modelStuff; |
|
if ( pModel ) |
|
{ |
|
modelStuff.sprintf("%s.%s ", modelinfo->IsTranslucent( pModel ) ? "Translucent" : "Opaque", |
|
modelinfo->IsTranslucentTwoPass( pModel ) ? " Two-pass." : "" ); |
|
} |
|
|
|
// Calculate distance to surface that was hit |
|
Vector vecVelocity = tr.startpos - tr.endpos; |
|
int length = vecVelocity.Length(); |
|
|
|
Msg("Hit surface \"%s\" (entity %s, model \"%s\" %s), texture \"%s\"\n", physprops->GetPropName( tr.surface.surfaceProps ), tr.m_pEnt->GetClassname(), pModelName, modelStuff.Access(), tr.surface.name); |
|
Msg("Distance to surface: %d\n", length ); |
|
} |
|
} |
|
|
|
static void OutputVPhysicsDebugInfo( CBaseEntity *pEntity ) |
|
{ |
|
if ( pEntity ) |
|
{ |
|
Msg("Entity %s (%s) %s Collision Group %d\n", pEntity->GetClassname(), pEntity->GetDebugName(), pEntity->IsNavIgnored() ? "NAV IGNORE" : "", pEntity->GetCollisionGroup() ); |
|
CUtlVector<CBaseEntity *> list; |
|
g_Collisions.GetListOfPenetratingEntities( pEntity, list ); |
|
for ( int i = 0; i < list.Count(); i++ ) |
|
{ |
|
Msg(" penetration with entity %s (%s)\n", list[i]->GetDebugName(), STRING(list[i]->GetModelName()) ); |
|
} |
|
|
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int physCount = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
if ( physCount ) |
|
{ |
|
if ( physCount > 1 ) |
|
{ |
|
for ( int i = 0; i < physCount; i++ ) |
|
{ |
|
Msg("Object %d (of %d) =========================\n", i+1, physCount ); |
|
pList[i]->OutputDebugInfo(); |
|
} |
|
} |
|
else |
|
{ |
|
pList[0]->OutputDebugInfo(); |
|
} |
|
} |
|
} |
|
} |
|
|
|
class CConstraintFloodEntry |
|
{ |
|
public: |
|
CConstraintFloodEntry() : isMarked(false), isConstraint(false) {} |
|
|
|
CUtlVector<CBaseEntity *> linkList; |
|
bool isMarked; |
|
bool isConstraint; |
|
}; |
|
|
|
class CConstraintFloodList |
|
{ |
|
public: |
|
CConstraintFloodList() |
|
{ |
|
SetDefLessFunc( m_list ); |
|
m_list.EnsureCapacity(64); |
|
m_entryList.EnsureCapacity(64); |
|
} |
|
|
|
bool IsWorldEntity( CBaseEntity *pEnt ) |
|
{ |
|
if ( pEnt->edict() ) |
|
return pEnt->IsWorld(); |
|
return false; |
|
} |
|
|
|
void AddLink( CBaseEntity *pEntity, CBaseEntity *pLink, bool bIsConstraint ) |
|
{ |
|
if ( !pEntity || !pLink || IsWorldEntity(pEntity) || IsWorldEntity(pLink) ) |
|
return; |
|
int listIndex = m_list.Find(pEntity); |
|
if ( listIndex == m_list.InvalidIndex() ) |
|
{ |
|
int entryIndex = m_entryList.AddToTail(); |
|
m_entryList[entryIndex].isConstraint = bIsConstraint; |
|
listIndex = m_list.Insert( pEntity, entryIndex ); |
|
} |
|
int entryIndex = m_list.Element(listIndex); |
|
CConstraintFloodEntry &entry = m_entryList.Element(entryIndex); |
|
Assert( entry.isConstraint == bIsConstraint ); |
|
if ( entry.linkList.Find(pLink) < 0 ) |
|
{ |
|
entry.linkList.AddToTail( pLink ); |
|
} |
|
} |
|
|
|
void BuildGraphFromEntity( CBaseEntity *pEntity, CUtlVector<CBaseEntity *> &constraintList ) |
|
{ |
|
int listIndex = m_list.Find(pEntity); |
|
if ( listIndex != m_list.InvalidIndex() ) |
|
{ |
|
int entryIndex = m_list.Element(listIndex); |
|
CConstraintFloodEntry &entry = m_entryList.Element(entryIndex); |
|
if ( !entry.isMarked ) |
|
{ |
|
if ( entry.isConstraint ) |
|
{ |
|
Assert( constraintList.Find(pEntity) < 0); |
|
constraintList.AddToTail( pEntity ); |
|
} |
|
entry.isMarked = true; |
|
for ( int i = 0; i < entry.linkList.Count(); i++ ) |
|
{ |
|
// now recursively traverse the graph from here |
|
BuildGraphFromEntity( entry.linkList[i], constraintList ); |
|
} |
|
} |
|
} |
|
} |
|
CUtlMap<CBaseEntity *, int> m_list; |
|
CUtlVector<CConstraintFloodEntry> m_entryList; |
|
}; |
|
|
|
// traverses the graph of attachments (currently supports springs & constraints) starting at an entity |
|
// Then turns on debug info for each link in the graph (springs/constraints are links) |
|
static void DebugConstraints( CBaseEntity *pEntity ) |
|
{ |
|
extern bool GetSpringAttachments( CBaseEntity *pEntity, CBaseEntity *pAttach[2], IPhysicsObject *pAttachVPhysics[2] ); |
|
extern bool GetConstraintAttachments( CBaseEntity *pEntity, CBaseEntity *pAttach[2], IPhysicsObject *pAttachVPhysics[2] ); |
|
extern void DebugConstraint(CBaseEntity *pEntity); |
|
|
|
if ( !pEntity ) |
|
return; |
|
|
|
CBaseEntity *pAttach[2]; |
|
IPhysicsObject *pAttachVPhysics[2]; |
|
CConstraintFloodList list; |
|
|
|
for ( CBaseEntity *pList = gEntList.FirstEnt(); pList != NULL; pList = gEntList.NextEnt(pList) ) |
|
{ |
|
if ( GetConstraintAttachments(pList, pAttach, pAttachVPhysics) || GetSpringAttachments(pList, pAttach, pAttachVPhysics) ) |
|
{ |
|
list.AddLink( pList, pAttach[0], true ); |
|
list.AddLink( pList, pAttach[1], true ); |
|
list.AddLink( pAttach[0], pList, false ); |
|
list.AddLink( pAttach[1], pList, false ); |
|
} |
|
} |
|
|
|
CUtlVector<CBaseEntity *> constraints; |
|
list.BuildGraphFromEntity( pEntity, constraints ); |
|
for ( int i = 0; i < constraints.Count(); i++ ) |
|
{ |
|
if ( !GetConstraintAttachments(constraints[i], pAttach, pAttachVPhysics) ) |
|
{ |
|
GetSpringAttachments(constraints[i], pAttach, pAttachVPhysics); |
|
} |
|
const char *pName0 = "world"; |
|
const char *pName1 = "world"; |
|
const char *pModel0 = ""; |
|
const char *pModel1 = ""; |
|
int index0 = 0; |
|
int index1 = 0; |
|
if ( pAttach[0] ) |
|
{ |
|
pName0 = pAttach[0]->GetClassname(); |
|
pModel0 = STRING(pAttach[0]->GetModelName()); |
|
index0 = pAttachVPhysics[0]->GetGameIndex(); |
|
} |
|
if ( pAttach[1] ) |
|
{ |
|
pName1 = pAttach[1]->GetClassname(); |
|
pModel1 = STRING(pAttach[1]->GetModelName()); |
|
index1 = pAttachVPhysics[1]->GetGameIndex(); |
|
} |
|
Msg("**********************\n%s connects %s(%s:%d) to %s(%s:%d)\n", constraints[i]->GetClassname(), pName0, pModel0, index0, pName1, pModel1, index1 ); |
|
DebugConstraint(constraints[i]); |
|
constraints[i]->m_debugOverlays |= OVERLAY_BBOX_BIT | OVERLAY_TEXT_BIT; |
|
} |
|
} |
|
|
|
static void MarkVPhysicsDebug( CBaseEntity *pEntity ) |
|
{ |
|
if ( pEntity ) |
|
{ |
|
IPhysicsObject *pPhysics = pEntity->VPhysicsGetObject(); |
|
if ( pPhysics ) |
|
{ |
|
unsigned short callbacks = pPhysics->GetCallbackFlags(); |
|
callbacks ^= CALLBACK_MARKED_FOR_TEST; |
|
pPhysics->SetCallbackFlags( callbacks ); |
|
} |
|
} |
|
} |
|
|
|
void PhysicsCommand( const CCommand &args, void (*func)( CBaseEntity *pEntity ) ) |
|
{ |
|
if ( args.ArgC() < 2 ) |
|
{ |
|
CBasePlayer *pPlayer = UTIL_GetCommandClient(); |
|
|
|
trace_t tr; |
|
Vector forward; |
|
pPlayer->EyeVectors( &forward ); |
|
UTIL_TraceLine(pPlayer->EyePosition(), pPlayer->EyePosition() + forward * MAX_COORD_RANGE, |
|
MASK_SHOT_HULL|CONTENTS_GRATE|CONTENTS_DEBRIS, pPlayer, COLLISION_GROUP_NONE, &tr ); |
|
|
|
if ( tr.DidHit() ) |
|
{ |
|
func( tr.m_pEnt ); |
|
} |
|
} |
|
else |
|
{ |
|
CBaseEntity *pEnt = NULL; |
|
while ( ( pEnt = gEntList.FindEntityGeneric( pEnt, args[1] ) ) != NULL ) |
|
{ |
|
func( pEnt ); |
|
} |
|
} |
|
} |
|
|
|
CON_COMMAND(physics_constraints, "Highlights constraint system graph for an entity") |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
PhysicsCommand( args, DebugConstraints ); |
|
} |
|
|
|
CON_COMMAND(physics_debug_entity, "Dumps debug info for an entity") |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
PhysicsCommand( args, OutputVPhysicsDebugInfo ); |
|
} |
|
|
|
CON_COMMAND(physics_select, "Dumps debug info for an entity") |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
PhysicsCommand( args, MarkVPhysicsDebug ); |
|
} |
|
|
|
CON_COMMAND( physics_budget, "Times the cost of each active object" ) |
|
{ |
|
if ( !UTIL_IsCommandIssuedByServerAdmin() ) |
|
return; |
|
|
|
int activeCount = physenv->GetActiveObjectCount(); |
|
|
|
IPhysicsObject **pActiveList = NULL; |
|
CUtlVector<CBaseEntity *> ents; |
|
if ( activeCount ) |
|
{ |
|
int i; |
|
|
|
pActiveList = (IPhysicsObject **)stackalloc( sizeof(IPhysicsObject *)*activeCount ); |
|
physenv->GetActiveObjects( pActiveList ); |
|
for ( i = 0; i < activeCount; i++ ) |
|
{ |
|
CBaseEntity *pEntity = reinterpret_cast<CBaseEntity *>(pActiveList[i]->GetGameData()); |
|
if ( pEntity ) |
|
{ |
|
int index = -1; |
|
for ( int j = 0; j < ents.Count(); j++ ) |
|
{ |
|
if ( pEntity == ents[j] ) |
|
{ |
|
index = j; |
|
break; |
|
} |
|
} |
|
if ( index >= 0 ) |
|
continue; |
|
|
|
ents.AddToTail( pEntity ); |
|
} |
|
} |
|
stackfree( pActiveList ); |
|
|
|
if ( !ents.Count() ) |
|
return; |
|
|
|
CUtlVector<float> times; |
|
float totalTime = 0.f; |
|
g_Collisions.BufferTouchEvents( true ); |
|
float full = engine->Time(); |
|
physenv->Simulate( DEFAULT_TICK_INTERVAL ); |
|
full = engine->Time() - full; |
|
float lastTime = full; |
|
|
|
times.SetSize( ents.Count() ); |
|
|
|
|
|
// NOTE: This is just a heuristic. Attempt to estimate cost by putting each object to sleep in turn. |
|
// note that simulation may wake the objects again and some costs scale with sets of objects/constraints/etc |
|
// so these are only generally useful for broad questions, not real metrics! |
|
for ( i = 0; i < ents.Count(); i++ ) |
|
{ |
|
for ( int j = 0; j < i; j++ ) |
|
{ |
|
PhysForceEntityToSleep( ents[j], ents[j]->VPhysicsGetObject() ); |
|
} |
|
float start = engine->Time(); |
|
physenv->Simulate( DEFAULT_TICK_INTERVAL ); |
|
float end = engine->Time(); |
|
|
|
float elapsed = end - start; |
|
float avgTime = lastTime - elapsed; |
|
times[i] = clamp( avgTime, 0.00001f, 1.0f ); |
|
totalTime += times[i]; |
|
lastTime = elapsed; |
|
} |
|
|
|
totalTime = MAX( totalTime, 0.001 ); |
|
for ( i = 0; i < ents.Count(); i++ ) |
|
{ |
|
float fraction = times[i] / totalTime; |
|
Msg( "%s (%s): %.3fms (%.3f%%) @ %s\n", ents[i]->GetClassname(), ents[i]->GetDebugName(), fraction * totalTime * 1000.0f, fraction * 100.0f, VecToString(ents[i]->GetAbsOrigin()) ); |
|
} |
|
g_Collisions.BufferTouchEvents( false ); |
|
} |
|
|
|
} |
|
|
|
|
|
#ifdef PORTAL |
|
ConVar sv_fullsyncclones("sv_fullsyncclones", "1", FCVAR_CHEAT ); |
|
void PortalPhysFrame( float deltaTime ) //small wrapper for PhysFrame that simulates all environments at once |
|
{ |
|
CPortalSimulator::PrePhysFrame(); |
|
|
|
if( sv_fullsyncclones.GetBool() ) |
|
CPhysicsShadowClone::FullSyncAllClones(); |
|
|
|
g_Collisions.BufferTouchEvents( true ); |
|
|
|
PhysFrame( deltaTime ); |
|
|
|
g_Collisions.PortalPostSimulationFrame(); |
|
|
|
g_Collisions.BufferTouchEvents( false ); |
|
g_Collisions.FrameUpdate(); |
|
|
|
CPortalSimulator::PostPhysFrame(); |
|
} |
|
#endif |
|
|
|
// Advance physics by time (in seconds) |
|
void PhysFrame( float deltaTime ) |
|
{ |
|
static int lastObjectCount = 0; |
|
entitem_t *pItem; |
|
|
|
if ( !g_PhysicsHook.ShouldSimulate() ) |
|
return; |
|
|
|
// Trap interrupts and clock changes |
|
if ( deltaTime > 1.0f || deltaTime < 0.0f ) |
|
{ |
|
deltaTime = 0; |
|
Msg( "Reset physics clock\n" ); |
|
} |
|
else if ( deltaTime > 0.1f ) // limit incoming time to 100ms |
|
{ |
|
deltaTime = 0.1f; |
|
} |
|
float simRealTime = 0; |
|
|
|
deltaTime *= phys_timescale.GetFloat(); |
|
// !!!HACKHACK -- hard limit scaled time to avoid spending too much time in here |
|
// Limit to 100 ms |
|
if ( deltaTime > 0.100f ) |
|
deltaTime = 0.100f; |
|
|
|
bool bProfile = phys_speeds.GetBool(); |
|
|
|
if ( bProfile ) |
|
{ |
|
simRealTime = engine->Time(); |
|
} |
|
|
|
#ifdef _DEBUG |
|
physenv->DebugCheckContacts(); |
|
#endif |
|
|
|
#ifndef PORTAL //instead of wrapping 1 simulation with this, portal needs to wrap 3 |
|
g_Collisions.BufferTouchEvents( true ); |
|
#endif |
|
|
|
physenv->Simulate( deltaTime ); |
|
|
|
int activeCount = physenv->GetActiveObjectCount(); |
|
IPhysicsObject **pActiveList = NULL; |
|
if ( activeCount ) |
|
{ |
|
pActiveList = (IPhysicsObject **)stackalloc( sizeof(IPhysicsObject *)*activeCount ); |
|
physenv->GetActiveObjects( pActiveList ); |
|
|
|
for ( int i = 0; i < activeCount; i++ ) |
|
{ |
|
CBaseEntity *pEntity = reinterpret_cast<CBaseEntity *>(pActiveList[i]->GetGameData()); |
|
if ( pEntity ) |
|
{ |
|
if ( pEntity->CollisionProp()->DoesVPhysicsInvalidateSurroundingBox() ) |
|
{ |
|
pEntity->CollisionProp()->MarkSurroundingBoundsDirty(); |
|
} |
|
pEntity->VPhysicsUpdate( pActiveList[i] ); |
|
} |
|
} |
|
stackfree( pActiveList ); |
|
} |
|
|
|
for ( pItem = g_pShadowEntities->m_pItemList; pItem; pItem = pItem->pNext ) |
|
{ |
|
CBaseEntity *pEntity = pItem->hEnt.Get(); |
|
if ( !pEntity ) |
|
{ |
|
Msg( "Dangling pointer to physics entity!!!\n" ); |
|
continue; |
|
} |
|
|
|
IPhysicsObject *pPhysics = pEntity->VPhysicsGetObject(); |
|
// apply updates |
|
if ( pPhysics && !pPhysics->IsAsleep() ) |
|
{ |
|
pEntity->VPhysicsShadowUpdate( pPhysics ); |
|
} |
|
} |
|
|
|
if ( bProfile ) |
|
{ |
|
simRealTime = engine->Time() - simRealTime; |
|
|
|
if ( simRealTime < 0 ) |
|
simRealTime = 0; |
|
g_PhysAverageSimTime *= 0.8; |
|
g_PhysAverageSimTime += (simRealTime * 0.2); |
|
if ( lastObjectCount != 0 || activeCount != 0 ) |
|
{ |
|
Msg( "Physics: %3d objects, %4.1fms / AVG: %4.1fms\n", activeCount, simRealTime * 1000, g_PhysAverageSimTime * 1000 ); |
|
} |
|
|
|
lastObjectCount = activeCount; |
|
} |
|
|
|
#ifndef PORTAL //instead of wrapping 1 simulation with this, portal needs to wrap 3 |
|
g_Collisions.BufferTouchEvents( false ); |
|
g_Collisions.FrameUpdate(); |
|
#endif |
|
} |
|
|
|
|
|
void PhysAddShadow( CBaseEntity *pEntity ) |
|
{ |
|
g_pShadowEntities->AddEntity( pEntity ); |
|
} |
|
|
|
void PhysRemoveShadow( CBaseEntity *pEntity ) |
|
{ |
|
g_pShadowEntities->DeleteEntity( pEntity ); |
|
} |
|
|
|
bool PhysHasShadow( CBaseEntity *pEntity ) |
|
{ |
|
EHANDLE hTestEnt = pEntity; |
|
entitem_t *pCurrent = g_pShadowEntities->m_pItemList; |
|
while( pCurrent ) |
|
{ |
|
if( pCurrent->hEnt == hTestEnt ) |
|
{ |
|
return true; |
|
} |
|
pCurrent = pCurrent->pNext; |
|
} |
|
return false; |
|
} |
|
|
|
void PhysEnableFloating( IPhysicsObject *pObject, bool bEnable ) |
|
{ |
|
if ( pObject != NULL ) |
|
{ |
|
unsigned short flags = pObject->GetCallbackFlags(); |
|
if ( bEnable ) |
|
{ |
|
flags |= CALLBACK_DO_FLUID_SIMULATION; |
|
} |
|
else |
|
{ |
|
flags &= ~CALLBACK_DO_FLUID_SIMULATION; |
|
} |
|
pObject->SetCallbackFlags( flags ); |
|
} |
|
} |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// CollisionEvent system |
|
//----------------------------------------------------------------------------- |
|
// NOTE: PreCollision/PostCollision ALWAYS come in matched pairs!!! |
|
void CCollisionEvent::PreCollision( vcollisionevent_t *pEvent ) |
|
{ |
|
CallbackContext check(this); |
|
m_gameEvent.Init( pEvent ); |
|
|
|
// gather the pre-collision data that the game needs to track |
|
for ( int i = 0; i < 2; i++ ) |
|
{ |
|
IPhysicsObject *pObject = pEvent->pObjects[i]; |
|
if ( pObject ) |
|
{ |
|
if ( pObject->GetGameFlags() & FVPHYSICS_PLAYER_HELD ) |
|
{ |
|
CBaseEntity *pOtherEntity = reinterpret_cast<CBaseEntity *>(pEvent->pObjects[!i]->GetGameData()); |
|
if ( pOtherEntity && !pOtherEntity->IsPlayer() ) |
|
{ |
|
Vector velocity; |
|
AngularImpulse angVel; |
|
// HACKHACK: If we totally clear this out, then Havok will think the objects |
|
// are penetrating and generate forces to separate them |
|
// so make it fairly small and have a tiny collision instead. |
|
pObject->GetVelocity( &velocity, &angVel ); |
|
float len = VectorNormalize(velocity); |
|
len = MAX( len, 10 ); |
|
velocity *= len; |
|
len = VectorNormalize(angVel); |
|
len = MAX( len, 1 ); |
|
angVel *= len; |
|
pObject->SetVelocity( &velocity, &angVel ); |
|
} |
|
} |
|
pObject->GetVelocity( &m_gameEvent.preVelocity[i], &m_gameEvent.preAngularVelocity[i] ); |
|
} |
|
} |
|
} |
|
|
|
void CCollisionEvent::PostCollision( vcollisionevent_t *pEvent ) |
|
{ |
|
CallbackContext check(this); |
|
bool isShadow[2] = {false,false}; |
|
int i; |
|
|
|
for ( i = 0; i < 2; i++ ) |
|
{ |
|
IPhysicsObject *pObject = pEvent->pObjects[i]; |
|
if ( pObject ) |
|
{ |
|
CBaseEntity *pEntity = reinterpret_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( !pEntity ) |
|
return; |
|
|
|
// UNDONE: This is here to trap crashes due to NULLing out the game data on delete |
|
m_gameEvent.pEntities[i] = pEntity; |
|
unsigned int flags = pObject->GetCallbackFlags(); |
|
pObject->GetVelocity( &m_gameEvent.postVelocity[i], NULL ); |
|
if ( flags & CALLBACK_SHADOW_COLLISION ) |
|
{ |
|
isShadow[i] = true; |
|
} |
|
|
|
// Shouldn't get impacts with triggers |
|
Assert( !pObject->IsTrigger() ); |
|
} |
|
} |
|
|
|
// copy off the post-collision variable data |
|
m_gameEvent.collisionSpeed = pEvent->collisionSpeed; |
|
m_gameEvent.pInternalData = pEvent->pInternalData; |
|
|
|
// special case for hitting self, only make one non-shadow call |
|
if ( m_gameEvent.pEntities[0] == m_gameEvent.pEntities[1] ) |
|
{ |
|
if ( pEvent->isCollision && m_gameEvent.pEntities[0] ) |
|
{ |
|
m_gameEvent.pEntities[0]->VPhysicsCollision( 0, &m_gameEvent ); |
|
} |
|
return; |
|
} |
|
|
|
if ( isShadow[0] && isShadow[1] ) |
|
{ |
|
pEvent->isCollision = false; |
|
} |
|
|
|
for ( i = 0; i < 2; i++ ) |
|
{ |
|
if ( pEvent->isCollision ) |
|
{ |
|
m_gameEvent.pEntities[i]->VPhysicsCollision( i, &m_gameEvent ); |
|
} |
|
if ( pEvent->isShadowCollision && isShadow[i] ) |
|
{ |
|
m_gameEvent.pEntities[i]->VPhysicsShadowCollision( i, &m_gameEvent ); |
|
} |
|
} |
|
} |
|
|
|
void PhysForceEntityToSleep( CBaseEntity *pEntity, IPhysicsObject *pObject ) |
|
{ |
|
// UNDONE: Check to see if the object is touching the player first? |
|
// Might get the player stuck? |
|
if ( !pObject || !pObject->IsMoveable() ) |
|
return; |
|
|
|
DevMsg(2, "Putting entity to sleep: %s\n", pEntity->GetClassname() ); |
|
MEM_ALLOC_CREDIT(); |
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int physCount = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
for ( int i = 0; i < physCount; i++ ) |
|
{ |
|
PhysForceClearVelocity( pList[i] ); |
|
pList[i]->Sleep(); |
|
} |
|
} |
|
|
|
void CCollisionEvent::Friction( IPhysicsObject *pObject, float energy, int surfaceProps, int surfacePropsHit, IPhysicsCollisionData *pData ) |
|
{ |
|
CallbackContext check(this); |
|
//Get our friction information |
|
Vector vecPos, vecVel; |
|
pData->GetContactPoint( vecPos ); |
|
pObject->GetVelocityAtPoint( vecPos, &vecVel ); |
|
|
|
CBaseEntity *pEntity = reinterpret_cast<CBaseEntity *>(pObject->GetGameData()); |
|
|
|
if ( pEntity ) |
|
{ |
|
friction_t *pFriction = g_Collisions.FindFriction( pEntity ); |
|
|
|
if ( pFriction && pFriction->pObject) |
|
{ |
|
// in MP mode play sound and effects once every 500 msecs, |
|
// no ongoing updates, takes too much bandwidth |
|
if ( (pFriction->flLastEffectTime + 0.5f) > gpGlobals->curtime) |
|
{ |
|
pFriction->flLastUpdateTime = gpGlobals->curtime; |
|
return; |
|
} |
|
} |
|
|
|
pEntity->VPhysicsFriction( pObject, energy, surfaceProps, surfacePropsHit ); |
|
} |
|
|
|
PhysFrictionEffect( vecPos, vecVel, energy, surfaceProps, surfacePropsHit ); |
|
} |
|
|
|
|
|
friction_t *CCollisionEvent::FindFriction( CBaseEntity *pObject ) |
|
{ |
|
friction_t *pFree = NULL; |
|
|
|
for ( int i = 0; i < ARRAYSIZE(m_current); i++ ) |
|
{ |
|
if ( !m_current[i].pObject && !pFree ) |
|
pFree = &m_current[i]; |
|
|
|
if ( m_current[i].pObject == pObject ) |
|
return &m_current[i]; |
|
} |
|
|
|
return pFree; |
|
} |
|
|
|
void CCollisionEvent::ShutdownFriction( friction_t &friction ) |
|
{ |
|
// Msg( "Scrape Stop %s \n", STRING(friction.pObject->m_iClassname) ); |
|
CSoundEnvelopeController::GetController().SoundDestroy( friction.patch ); |
|
friction.patch = NULL; |
|
friction.pObject = NULL; |
|
} |
|
|
|
void CCollisionEvent::UpdateRemoveObjects() |
|
{ |
|
Assert(!PhysIsInCallback()); |
|
for ( int i = 0 ; i < m_removeObjects.Count(); i++ ) |
|
{ |
|
UTIL_Remove(m_removeObjects[i]); |
|
} |
|
m_removeObjects.RemoveAll(); |
|
} |
|
|
|
void CCollisionEvent::PostSimulationFrame() |
|
{ |
|
UpdateDamageEvents(); |
|
g_PostSimulationQueue.CallQueued(); |
|
UpdateRemoveObjects(); |
|
} |
|
|
|
void CCollisionEvent::FlushQueuedOperations() |
|
{ |
|
int loopCount = 0; |
|
while ( loopCount < 20 ) |
|
{ |
|
int count = m_triggerEvents.Count() + m_touchEvents.Count() + m_damageEvents.Count() + m_removeObjects.Count() + g_PostSimulationQueue.Count(); |
|
if ( !count ) |
|
break; |
|
// testing, if this assert fires it proves we've fixed the crash |
|
// after that the assert + warning can safely be removed |
|
Assert(0); |
|
Warning("Physics queue not empty, error!\n"); |
|
loopCount++; |
|
UpdateTouchEvents(); |
|
UpdateDamageEvents(); |
|
g_PostSimulationQueue.CallQueued(); |
|
UpdateRemoveObjects(); |
|
} |
|
} |
|
|
|
void CCollisionEvent::FrameUpdate( void ) |
|
{ |
|
UpdateFrictionSounds(); |
|
UpdateTouchEvents(); |
|
UpdatePenetrateEvents(); |
|
UpdateFluidEvents(); |
|
UpdateDamageEvents(); // if there was no PSI in physics, we'll still need to do some of these because collisions are solved in between PSIs |
|
g_PostSimulationQueue.CallQueued(); |
|
UpdateRemoveObjects(); |
|
|
|
// There are some queued operations that must complete each frame, iterate until these are done |
|
FlushQueuedOperations(); |
|
} |
|
|
|
// the delete list is getting flushed, clean up ours |
|
void PhysOnCleanupDeleteList() |
|
{ |
|
g_Collisions.FlushQueuedOperations(); |
|
if ( physenv ) |
|
{ |
|
physenv->CleanupDeleteList(); |
|
} |
|
} |
|
|
|
void CCollisionEvent::UpdateFluidEvents( void ) |
|
{ |
|
for ( int i = m_fluidEvents.Count()-1; i >= 0; --i ) |
|
{ |
|
if ( (gpGlobals->curtime - m_fluidEvents[i].impactTime) > FLUID_TIME_MAX ) |
|
{ |
|
m_fluidEvents.FastRemove(i); |
|
} |
|
} |
|
} |
|
|
|
|
|
float CCollisionEvent::DeltaTimeSinceLastFluid( CBaseEntity *pEntity ) |
|
{ |
|
for ( int i = m_fluidEvents.Count()-1; i >= 0; --i ) |
|
{ |
|
if ( m_fluidEvents[i].hEntity.Get() == pEntity ) |
|
{ |
|
return gpGlobals->curtime - m_fluidEvents[i].impactTime; |
|
} |
|
} |
|
|
|
int index = m_fluidEvents.AddToTail(); |
|
m_fluidEvents[index].hEntity = pEntity; |
|
m_fluidEvents[index].impactTime = gpGlobals->curtime; |
|
return FLUID_TIME_MAX; |
|
} |
|
|
|
void CCollisionEvent::UpdateFrictionSounds( void ) |
|
{ |
|
for ( int i = 0; i < ARRAYSIZE(m_current); i++ ) |
|
{ |
|
if ( m_current[i].patch ) |
|
{ |
|
if ( m_current[i].flLastUpdateTime < (gpGlobals->curtime-0.1f) ) |
|
{ |
|
// friction wasn't updated the last 100msec, assume fiction finished |
|
ShutdownFriction( m_current[i] ); |
|
} |
|
} |
|
} |
|
} |
|
|
|
|
|
void CCollisionEvent::DispatchStartTouch( CBaseEntity *pEntity0, CBaseEntity *pEntity1, const Vector &point, const Vector &normal ) |
|
{ |
|
trace_t trace; |
|
memset( &trace, 0, sizeof(trace) ); |
|
trace.endpos = point; |
|
trace.plane.dist = DotProduct( point, normal ); |
|
trace.plane.normal = normal; |
|
|
|
// NOTE: This sets up the touch list for both entities, no call to pEntity1 is needed |
|
pEntity0->PhysicsMarkEntitiesAsTouchingEventDriven( pEntity1, trace ); |
|
} |
|
|
|
void CCollisionEvent::DispatchEndTouch( CBaseEntity *pEntity0, CBaseEntity *pEntity1 ) |
|
{ |
|
// frees the event-driven touchlinks |
|
pEntity0->PhysicsNotifyOtherOfUntouch( pEntity0, pEntity1 ); |
|
pEntity1->PhysicsNotifyOtherOfUntouch( pEntity1, pEntity0 ); |
|
} |
|
|
|
void CCollisionEvent::UpdateTouchEvents( void ) |
|
{ |
|
int i; |
|
// Turn on buffering in case new touch events occur during processing |
|
bool bOldTouchEvents = m_bBufferTouchEvents; |
|
m_bBufferTouchEvents = true; |
|
for ( i = 0; i < m_touchEvents.Count(); i++ ) |
|
{ |
|
const touchevent_t &event = m_touchEvents[i]; |
|
if ( event.touchType == TOUCH_START ) |
|
{ |
|
DispatchStartTouch( event.pEntity0, event.pEntity1, event.endPoint, event.normal ); |
|
} |
|
else |
|
{ |
|
// TOUCH_END |
|
DispatchEndTouch( event.pEntity0, event.pEntity1 ); |
|
} |
|
} |
|
m_touchEvents.RemoveAll(); |
|
|
|
for ( i = 0; i < m_triggerEvents.Count(); i++ ) |
|
{ |
|
m_currentTriggerEvent = m_triggerEvents[i]; |
|
if ( m_currentTriggerEvent.bStart ) |
|
{ |
|
m_currentTriggerEvent.pTriggerEntity->StartTouch( m_currentTriggerEvent.pEntity ); |
|
} |
|
else |
|
{ |
|
m_currentTriggerEvent.pTriggerEntity->EndTouch( m_currentTriggerEvent.pEntity ); |
|
} |
|
} |
|
m_triggerEvents.RemoveAll(); |
|
m_currentTriggerEvent.Clear(); |
|
m_bBufferTouchEvents = bOldTouchEvents; |
|
} |
|
|
|
void CCollisionEvent::UpdateDamageEvents( void ) |
|
{ |
|
for ( int i = 0; i < m_damageEvents.Count(); i++ ) |
|
{ |
|
damageevent_t &event = m_damageEvents[i]; |
|
|
|
// Track changes in the entity's life state |
|
int iEntBits = event.pEntity->IsAlive() ? 0x0001 : 0; |
|
iEntBits |= event.pEntity->IsMarkedForDeletion() ? 0x0002 : 0; |
|
iEntBits |= (event.pEntity->GetSolidFlags() & FSOLID_NOT_SOLID) ? 0x0004 : 0; |
|
#if 0 |
|
// Go ahead and compute the current static stress when hit by a large object (with a force high enough to do damage). |
|
// That way you die from the impact rather than the stress of the object resting on you whenever possible. |
|
// This makes the damage effects cleaner. |
|
if ( event.pInflictorPhysics && event.pInflictorPhysics->GetMass() > VPHYSICS_LARGE_OBJECT_MASS ) |
|
{ |
|
CBaseCombatCharacter *pCombat = event.pEntity->MyCombatCharacterPointer(); |
|
if ( pCombat ) |
|
{ |
|
vphysics_objectstress_t stressOut; |
|
event.info.AddDamage( pCombat->CalculatePhysicsStressDamage( &stressOut, pCombat->VPhysicsGetObject() ) ); |
|
} |
|
} |
|
#endif |
|
|
|
event.pEntity->TakeDamage( event.info ); |
|
int iEntBits2 = event.pEntity->IsAlive() ? 0x0001 : 0; |
|
iEntBits2 |= event.pEntity->IsMarkedForDeletion() ? 0x0002 : 0; |
|
iEntBits2 |= (event.pEntity->GetSolidFlags() & FSOLID_NOT_SOLID) ? 0x0004 : 0; |
|
|
|
if ( event.bRestoreVelocity && iEntBits != iEntBits2 ) |
|
{ |
|
// UNDONE: Use ratio of masses to blend in a little of the collision response? |
|
// UNDONE: Damage for future events is already computed - it would be nice to |
|
// go back and recompute it now that the values have |
|
// been adjusted |
|
RestoreDamageInflictorState( event.pInflictorPhysics ); |
|
} |
|
} |
|
m_damageEvents.RemoveAll(); |
|
m_damageInflictors.RemoveAll(); |
|
} |
|
|
|
void CCollisionEvent::RestoreDamageInflictorState( int inflictorStateIndex, float velocityBlend ) |
|
{ |
|
inflictorstate_t &state = m_damageInflictors[inflictorStateIndex]; |
|
if ( state.restored ) |
|
return; |
|
|
|
// so we only restore this guy once |
|
state.restored = true; |
|
|
|
if ( velocityBlend > 0 ) |
|
{ |
|
Vector velocity; |
|
AngularImpulse angVel; |
|
state.pInflictorPhysics->GetVelocity( &velocity, &angVel ); |
|
state.savedVelocity = state.savedVelocity*velocityBlend + velocity*(1-velocityBlend); |
|
state.savedAngularVelocity = state.savedAngularVelocity*velocityBlend + angVel*(1-velocityBlend); |
|
state.pInflictorPhysics->SetVelocity( &state.savedVelocity, &state.savedAngularVelocity ); |
|
} |
|
|
|
if ( state.nextIndex >= 0 ) |
|
{ |
|
RestoreDamageInflictorState( state.nextIndex, velocityBlend ); |
|
} |
|
} |
|
|
|
void CCollisionEvent::RestoreDamageInflictorState( IPhysicsObject *pInflictor ) |
|
{ |
|
if ( !pInflictor ) |
|
return; |
|
|
|
int index = FindDamageInflictor( pInflictor ); |
|
if ( index >= 0 ) |
|
{ |
|
inflictorstate_t &state = m_damageInflictors[index]; |
|
if ( !state.restored ) |
|
{ |
|
float velocityBlend = 1.0; |
|
float inflictorMass = state.pInflictorPhysics->GetMass(); |
|
if ( inflictorMass < VPHYSICS_LARGE_OBJECT_MASS && !(state.pInflictorPhysics->GetGameFlags() & FVPHYSICS_DMG_SLICE) ) |
|
{ |
|
float otherMass = state.otherMassMax > 0 ? state.otherMassMax : 1; |
|
float massRatio = inflictorMass / otherMass; |
|
massRatio = clamp( massRatio, 0.1f, 10.0f ); |
|
if ( massRatio < 1 ) |
|
{ |
|
velocityBlend = RemapVal( massRatio, 0.1, 1, 0, 0.5 ); |
|
} |
|
else |
|
{ |
|
velocityBlend = RemapVal( massRatio, 1.0, 10, 0.5, 1 ); |
|
} |
|
} |
|
RestoreDamageInflictorState( index, velocityBlend ); |
|
} |
|
} |
|
} |
|
|
|
bool CCollisionEvent::GetInflictorVelocity( IPhysicsObject *pInflictor, Vector &velocity, AngularImpulse &angVelocity ) |
|
{ |
|
int index = FindDamageInflictor( pInflictor ); |
|
if ( index >= 0 ) |
|
{ |
|
inflictorstate_t &state = m_damageInflictors[index]; |
|
velocity = state.savedVelocity; |
|
angVelocity = state.savedAngularVelocity; |
|
return true; |
|
} |
|
|
|
return false; |
|
} |
|
|
|
bool PhysGetDamageInflictorVelocityStartOfFrame( IPhysicsObject *pInflictor, Vector &velocity, AngularImpulse &angVelocity ) |
|
{ |
|
return g_Collisions.GetInflictorVelocity( pInflictor, velocity, angVelocity ); |
|
} |
|
|
|
void CCollisionEvent::AddTouchEvent( CBaseEntity *pEntity0, CBaseEntity *pEntity1, int touchType, const Vector &point, const Vector &normal ) |
|
{ |
|
if ( !pEntity0 || !pEntity1 ) |
|
return; |
|
|
|
int index = m_touchEvents.AddToTail(); |
|
touchevent_t &event = m_touchEvents[index]; |
|
event.pEntity0 = pEntity0; |
|
event.pEntity1 = pEntity1; |
|
event.touchType = touchType; |
|
event.endPoint = point; |
|
event.normal = normal; |
|
} |
|
|
|
void CCollisionEvent::AddDamageEvent( CBaseEntity *pEntity, const CTakeDamageInfo &info, IPhysicsObject *pInflictorPhysics, bool bRestoreVelocity, const Vector &savedVel, const AngularImpulse &savedAngVel ) |
|
{ |
|
if ( pEntity->IsMarkedForDeletion() ) |
|
return; |
|
|
|
int iTimeBasedDamage = g_pGameRules->Damage_GetTimeBased(); |
|
if ( !( info.GetDamageType() & (DMG_BURN | DMG_DROWN | iTimeBasedDamage | DMG_PREVENT_PHYSICS_FORCE) ) ) |
|
{ |
|
Assert( info.GetDamageForce() != vec3_origin && info.GetDamagePosition() != vec3_origin ); |
|
} |
|
|
|
int index = m_damageEvents.AddToTail(); |
|
damageevent_t &event = m_damageEvents[index]; |
|
event.pEntity = pEntity; |
|
event.info = info; |
|
event.pInflictorPhysics = pInflictorPhysics; |
|
event.bRestoreVelocity = bRestoreVelocity; |
|
if ( !pInflictorPhysics || !pInflictorPhysics->IsMoveable() ) |
|
{ |
|
event.bRestoreVelocity = false; |
|
} |
|
|
|
if ( event.bRestoreVelocity ) |
|
{ |
|
float otherMass = pEntity->VPhysicsGetObject()->GetMass(); |
|
int inflictorIndex = FindDamageInflictor(pInflictorPhysics); |
|
if ( inflictorIndex >= 0 ) |
|
{ |
|
// if this is a bigger mass, save that info |
|
inflictorstate_t &state = m_damageInflictors[inflictorIndex]; |
|
if ( otherMass > state.otherMassMax ) |
|
{ |
|
state.otherMassMax = otherMass; |
|
} |
|
|
|
} |
|
else |
|
{ |
|
AddDamageInflictor( pInflictorPhysics, otherMass, savedVel, savedAngVel, true ); |
|
} |
|
} |
|
|
|
} |
|
|
|
//----------------------------------------------------------------------------- |
|
// Impulse events |
|
//----------------------------------------------------------------------------- |
|
static void PostSimulation_ImpulseEvent( IPhysicsObject *pObject, const Vector ¢erForce, const AngularImpulse ¢erTorque ) |
|
{ |
|
pObject->ApplyForceCenter( centerForce ); |
|
pObject->ApplyTorqueCenter( centerTorque ); |
|
} |
|
|
|
void PostSimulation_SetVelocityEvent( IPhysicsObject *pPhysicsObject, const Vector &vecVelocity ) |
|
{ |
|
pPhysicsObject->SetVelocity( &vecVelocity, NULL ); |
|
} |
|
|
|
void CCollisionEvent::AddRemoveObject(IServerNetworkable *pRemove) |
|
{ |
|
if ( pRemove && m_removeObjects.Find(pRemove) == -1 ) |
|
{ |
|
m_removeObjects.AddToTail(pRemove); |
|
} |
|
} |
|
int CCollisionEvent::FindDamageInflictor( IPhysicsObject *pInflictorPhysics ) |
|
{ |
|
// UNDONE: Linear search? Probably ok with a low count here |
|
for ( int i = m_damageInflictors.Count()-1; i >= 0; --i ) |
|
{ |
|
const inflictorstate_t &state = m_damageInflictors[i]; |
|
if ( state.pInflictorPhysics == pInflictorPhysics ) |
|
return i; |
|
} |
|
|
|
return -1; |
|
} |
|
|
|
|
|
int CCollisionEvent::AddDamageInflictor( IPhysicsObject *pInflictorPhysics, float otherMass, const Vector &savedVel, const AngularImpulse &savedAngVel, bool addList ) |
|
{ |
|
// NOTE: Save off the state of the object before collision |
|
// restore if the impact is a kill |
|
// UNDONE: Should we absorb some energy here? |
|
// NOTE: we can't save a delta because there could be subsequent post-fatal collisions |
|
|
|
int addIndex = m_damageInflictors.AddToTail(); |
|
{ |
|
inflictorstate_t &state = m_damageInflictors[addIndex]; |
|
state.pInflictorPhysics = pInflictorPhysics; |
|
state.savedVelocity = savedVel; |
|
state.savedAngularVelocity = savedAngVel; |
|
state.otherMassMax = otherMass; |
|
state.restored = false; |
|
state.nextIndex = -1; |
|
} |
|
|
|
if ( addList ) |
|
{ |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pInflictorPhysics->GetGameData()); |
|
if ( pEntity ) |
|
{ |
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int physCount = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
if ( physCount > 1 ) |
|
{ |
|
int currentIndex = addIndex; |
|
for ( int i = 0; i < physCount; i++ ) |
|
{ |
|
if ( pList[i] != pInflictorPhysics ) |
|
{ |
|
Vector vel; |
|
AngularImpulse angVel; |
|
pList[i]->GetVelocity( &vel, &angVel ); |
|
int next = AddDamageInflictor( pList[i], otherMass, vel, angVel, false ); |
|
m_damageInflictors[currentIndex].nextIndex = next; |
|
currentIndex = next; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
return addIndex; |
|
} |
|
|
|
|
|
void CCollisionEvent::LevelShutdown( void ) |
|
{ |
|
for ( int i = 0; i < ARRAYSIZE(m_current); i++ ) |
|
{ |
|
if ( m_current[i].patch ) |
|
{ |
|
ShutdownFriction( m_current[i] ); |
|
} |
|
} |
|
} |
|
|
|
|
|
void CCollisionEvent::StartTouch( IPhysicsObject *pObject1, IPhysicsObject *pObject2, IPhysicsCollisionData *pTouchData ) |
|
{ |
|
CallbackContext check(this); |
|
CBaseEntity *pEntity1 = static_cast<CBaseEntity *>(pObject1->GetGameData()); |
|
CBaseEntity *pEntity2 = static_cast<CBaseEntity *>(pObject2->GetGameData()); |
|
|
|
if ( !pEntity1 || !pEntity2 ) |
|
return; |
|
|
|
Vector endPoint, normal; |
|
pTouchData->GetContactPoint( endPoint ); |
|
pTouchData->GetSurfaceNormal( normal ); |
|
if ( !m_bBufferTouchEvents ) |
|
{ |
|
DispatchStartTouch( pEntity1, pEntity2, endPoint, normal ); |
|
} |
|
else |
|
{ |
|
AddTouchEvent( pEntity1, pEntity2, TOUCH_START, endPoint, normal ); |
|
} |
|
} |
|
|
|
static int CountPhysicsObjectEntityContacts( IPhysicsObject *pObject, CBaseEntity *pEntity ) |
|
{ |
|
IPhysicsFrictionSnapshot *pSnapshot = pObject->CreateFrictionSnapshot(); |
|
int count = 0; |
|
while ( pSnapshot->IsValid() ) |
|
{ |
|
IPhysicsObject *pOther = pSnapshot->GetObject(1); |
|
CBaseEntity *pOtherEntity = static_cast<CBaseEntity *>(pOther->GetGameData()); |
|
if ( pOtherEntity == pEntity ) |
|
count++; |
|
pSnapshot->NextFrictionData(); |
|
} |
|
pObject->DestroyFrictionSnapshot( pSnapshot ); |
|
return count; |
|
} |
|
|
|
void CCollisionEvent::EndTouch( IPhysicsObject *pObject1, IPhysicsObject *pObject2, IPhysicsCollisionData *pTouchData ) |
|
{ |
|
CallbackContext check(this); |
|
CBaseEntity *pEntity1 = static_cast<CBaseEntity *>(pObject1->GetGameData()); |
|
CBaseEntity *pEntity2 = static_cast<CBaseEntity *>(pObject2->GetGameData()); |
|
|
|
if ( !pEntity1 || !pEntity2 ) |
|
return; |
|
|
|
// contact point deleted, but entities are still touching? |
|
IPhysicsObject *list[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int count = pEntity1->VPhysicsGetObjectList( list, ARRAYSIZE(list) ); |
|
|
|
int contactCount = 0; |
|
for ( int i = 0; i < count; i++ ) |
|
{ |
|
contactCount += CountPhysicsObjectEntityContacts( list[i], pEntity2 ); |
|
|
|
// still touching |
|
if ( contactCount > 1 ) |
|
return; |
|
} |
|
|
|
// should have exactly one contact point (the one getting deleted here) |
|
//Assert( contactCount == 1 ); |
|
|
|
Vector endPoint, normal; |
|
pTouchData->GetContactPoint( endPoint ); |
|
pTouchData->GetSurfaceNormal( normal ); |
|
|
|
if ( !m_bBufferTouchEvents ) |
|
{ |
|
DispatchEndTouch( pEntity1, pEntity2 ); |
|
} |
|
else |
|
{ |
|
AddTouchEvent( pEntity1, pEntity2, TOUCH_END, vec3_origin, vec3_origin ); |
|
} |
|
} |
|
|
|
// UNDONE: This is functional, but minimally. |
|
void CCollisionEvent::ObjectEnterTrigger( IPhysicsObject *pTrigger, IPhysicsObject *pObject ) |
|
{ |
|
CBaseEntity *pTriggerEntity = static_cast<CBaseEntity *>(pTrigger->GetGameData()); |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( pTriggerEntity && pEntity ) |
|
{ |
|
// UNDONE: Don't buffer these until we can solve generating touches at object creation time |
|
if ( 0 && m_bBufferTouchEvents ) |
|
{ |
|
int index = m_triggerEvents.AddToTail(); |
|
m_triggerEvents[index].Init( pTriggerEntity, pTrigger, pEntity, pObject, true ); |
|
} |
|
else |
|
{ |
|
CallbackContext check(this); |
|
m_currentTriggerEvent.Init( pTriggerEntity, pTrigger, pEntity, pObject, true ); |
|
pTriggerEntity->StartTouch( pEntity ); |
|
m_currentTriggerEvent.Clear(); |
|
} |
|
} |
|
} |
|
|
|
void CCollisionEvent::ObjectLeaveTrigger( IPhysicsObject *pTrigger, IPhysicsObject *pObject ) |
|
{ |
|
CBaseEntity *pTriggerEntity = static_cast<CBaseEntity *>(pTrigger->GetGameData()); |
|
CBaseEntity *pEntity = static_cast<CBaseEntity *>(pObject->GetGameData()); |
|
if ( pTriggerEntity && pEntity ) |
|
{ |
|
// UNDONE: Don't buffer these until we can solve generating touches at object creation time |
|
if ( 0 && m_bBufferTouchEvents ) |
|
{ |
|
int index = m_triggerEvents.AddToTail(); |
|
m_triggerEvents[index].Init( pTriggerEntity, pTrigger, pEntity, pObject, false ); |
|
} |
|
else |
|
{ |
|
CallbackContext check(this); |
|
m_currentTriggerEvent.Init( pTriggerEntity, pTrigger, pEntity, pObject, false ); |
|
pTriggerEntity->EndTouch( pEntity ); |
|
m_currentTriggerEvent.Clear(); |
|
} |
|
} |
|
} |
|
|
|
bool CCollisionEvent::GetTriggerEvent( triggerevent_t *pEvent, CBaseEntity *pTriggerEntity ) |
|
{ |
|
if ( pEvent && pTriggerEntity == m_currentTriggerEvent.pTriggerEntity ) |
|
{ |
|
*pEvent = m_currentTriggerEvent; |
|
return true; |
|
} |
|
|
|
return false; |
|
} |
|
|
|
void PhysGetListOfPenetratingEntities( CBaseEntity *pSearch, CUtlVector<CBaseEntity *> &list ) |
|
{ |
|
g_Collisions.GetListOfPenetratingEntities( pSearch, list ); |
|
} |
|
|
|
bool PhysGetTriggerEvent( triggerevent_t *pEvent, CBaseEntity *pTriggerEntity ) |
|
{ |
|
return g_Collisions.GetTriggerEvent( pEvent, pTriggerEntity ); |
|
} |
|
//----------------------------------------------------------------------------- |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// External interface to collision sounds |
|
//----------------------------------------------------------------------------- |
|
|
|
void PhysicsImpactSound( CBaseEntity *pEntity, IPhysicsObject *pPhysObject, int channel, int surfaceProps, int surfacePropsHit, float volume, float impactSpeed ) |
|
{ |
|
physicssound::AddImpactSound( g_PhysicsHook.m_impactSounds, pEntity, pEntity->entindex(), channel, pPhysObject, surfaceProps, surfacePropsHit, volume, impactSpeed ); |
|
} |
|
|
|
void PhysCollisionSound( CBaseEntity *pEntity, IPhysicsObject *pPhysObject, int channel, int surfaceProps, int surfacePropsHit, float deltaTime, float speed ) |
|
{ |
|
if ( deltaTime < 0.05f || speed < 70.0f ) |
|
return; |
|
|
|
float volume = speed * speed * (1.0f/(320.0f*320.0f)); // max volume at 320 in/s |
|
if ( volume > 1.0f ) |
|
volume = 1.0f; |
|
|
|
PhysicsImpactSound( pEntity, pPhysObject, channel, surfaceProps, surfacePropsHit, volume, speed ); |
|
} |
|
|
|
void PhysBreakSound( CBaseEntity *pEntity, IPhysicsObject *pPhysObject, Vector vecOrigin ) |
|
{ |
|
if ( !pPhysObject) |
|
return; |
|
|
|
physicssound::AddBreakSound( g_PhysicsHook.m_breakSounds, vecOrigin, pPhysObject->GetMaterialIndex() ); |
|
} |
|
|
|
ConVar collision_shake_amp("collision_shake_amp", "0.2"); |
|
ConVar collision_shake_freq("collision_shake_freq", "0.5"); |
|
ConVar collision_shake_time("collision_shake_time", "0.5"); |
|
|
|
void PhysCollisionScreenShake( gamevcollisionevent_t *pEvent, int index ) |
|
{ |
|
int otherIndex = !index; |
|
float mass = pEvent->pObjects[index]->GetMass(); |
|
if ( mass >= VPHYSICS_LARGE_OBJECT_MASS && pEvent->pObjects[otherIndex]->IsStatic() && |
|
!(pEvent->pObjects[index]->GetGameFlags() & FVPHYSICS_PENETRATING) ) |
|
{ |
|
mass = clamp(mass, VPHYSICS_LARGE_OBJECT_MASS, 2000.f); |
|
if ( pEvent->collisionSpeed > 30 && pEvent->deltaCollisionTime > 0.25f ) |
|
{ |
|
Vector vecPos; |
|
pEvent->pInternalData->GetContactPoint( vecPos ); |
|
float impulse = pEvent->collisionSpeed * mass; |
|
float amplitude = impulse * (collision_shake_amp.GetFloat() / (30.0f * VPHYSICS_LARGE_OBJECT_MASS)); |
|
UTIL_ScreenShake( vecPos, amplitude, collision_shake_freq.GetFloat(), collision_shake_time.GetFloat(), amplitude * 60, SHAKE_START ); |
|
} |
|
} |
|
} |
|
|
|
#if HL2_EPISODIC |
|
// Uses DispatchParticleEffect because, so far as I know, that is the new means of kicking |
|
// off flinders for this kind of collision. Should this be in g_pEffects instead? |
|
void PhysCollisionWarpEffect( gamevcollisionevent_t *pEvent, surfacedata_t *phit ) |
|
{ |
|
Vector vecPos; |
|
QAngle vecAngles; |
|
|
|
pEvent->pInternalData->GetContactPoint( vecPos ); |
|
{ |
|
Vector vecNormal; |
|
pEvent->pInternalData->GetSurfaceNormal(vecNormal); |
|
VectorAngles( vecNormal, vecAngles ); |
|
} |
|
|
|
DispatchParticleEffect( "warp_shield_impact", vecPos, vecAngles ); |
|
} |
|
#endif |
|
|
|
void PhysCollisionDust( gamevcollisionevent_t *pEvent, surfacedata_t *phit ) |
|
{ |
|
|
|
switch ( phit->game.material ) |
|
{ |
|
case CHAR_TEX_SAND: |
|
case CHAR_TEX_DIRT: |
|
|
|
if ( pEvent->collisionSpeed < 200.0f ) |
|
return; |
|
|
|
break; |
|
|
|
case CHAR_TEX_CONCRETE: |
|
|
|
if ( pEvent->collisionSpeed < 340.0f ) |
|
return; |
|
|
|
break; |
|
|
|
#if HL2_EPISODIC |
|
// this is probably redundant because BaseEntity::VHandleCollision should have already dispatched us elsewhere |
|
case CHAR_TEX_WARPSHIELD: |
|
PhysCollisionWarpEffect(pEvent,phit); |
|
return; |
|
|
|
break; |
|
#endif |
|
|
|
default: |
|
return; |
|
} |
|
|
|
//Kick up dust |
|
Vector vecPos, vecVel; |
|
|
|
pEvent->pInternalData->GetContactPoint( vecPos ); |
|
|
|
vecVel.Random( -1.0f, 1.0f ); |
|
vecVel.z = random->RandomFloat( 0.3f, 1.0f ); |
|
VectorNormalize( vecVel ); |
|
g_pEffects->Dust( vecPos, vecVel, 8.0f, pEvent->collisionSpeed ); |
|
} |
|
|
|
void PhysFrictionSound( CBaseEntity *pEntity, IPhysicsObject *pObject, const char *pSoundName, HSOUNDSCRIPTHANDLE& handle, float flVolume ) |
|
{ |
|
if ( !pEntity ) |
|
return; |
|
|
|
// cut out the quiet sounds |
|
// UNDONE: Separate threshold for starting a sound vs. continuing? |
|
flVolume = clamp( flVolume, 0.0f, 1.0f ); |
|
if ( flVolume > (1.0f/128.0f) ) |
|
{ |
|
friction_t *pFriction = g_Collisions.FindFriction( pEntity ); |
|
if ( !pFriction ) |
|
return; |
|
|
|
CSoundParameters params; |
|
if ( !CBaseEntity::GetParametersForSound( pSoundName, handle, params, NULL ) ) |
|
return; |
|
|
|
if ( !pFriction->pObject ) |
|
{ |
|
// don't create really quiet scrapes |
|
if ( params.volume * flVolume <= 0.1f ) |
|
return; |
|
|
|
pFriction->pObject = pEntity; |
|
CPASAttenuationFilter filter( pEntity, params.soundlevel ); |
|
pFriction->patch = CSoundEnvelopeController::GetController().SoundCreate( |
|
filter, pEntity->entindex(), CHAN_BODY, pSoundName, params.soundlevel ); |
|
CSoundEnvelopeController::GetController().Play( pFriction->patch, params.volume * flVolume, params.pitch ); |
|
} |
|
else |
|
{ |
|
float pitch = (flVolume * (params.pitchhigh - params.pitchlow)) + params.pitchlow; |
|
CSoundEnvelopeController::GetController().SoundChangeVolume( pFriction->patch, params.volume * flVolume, 0.1f ); |
|
CSoundEnvelopeController::GetController().SoundChangePitch( pFriction->patch, pitch, 0.1f ); |
|
} |
|
|
|
pFriction->flLastUpdateTime = gpGlobals->curtime; |
|
pFriction->flLastEffectTime = gpGlobals->curtime; |
|
} |
|
} |
|
|
|
void PhysCleanupFrictionSounds( CBaseEntity *pEntity ) |
|
{ |
|
friction_t *pFriction = g_Collisions.FindFriction( pEntity ); |
|
if ( pFriction && pFriction->patch ) |
|
{ |
|
g_Collisions.ShutdownFriction( *pFriction ); |
|
} |
|
} |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// Applies force impulses at a later time |
|
//----------------------------------------------------------------------------- |
|
void PhysCallbackImpulse( IPhysicsObject *pPhysicsObject, const Vector &vecCenterForce, const AngularImpulse &vecCenterTorque ) |
|
{ |
|
Assert( physenv->IsInSimulation() ); |
|
g_PostSimulationQueue.QueueCall( PostSimulation_ImpulseEvent, pPhysicsObject, RefToVal(vecCenterForce), RefToVal(vecCenterTorque) ); |
|
} |
|
|
|
void PhysCallbackSetVelocity( IPhysicsObject *pPhysicsObject, const Vector &vecVelocity ) |
|
{ |
|
Assert( physenv->IsInSimulation() ); |
|
g_PostSimulationQueue.QueueCall( PostSimulation_SetVelocityEvent, pPhysicsObject, RefToVal(vecVelocity) ); |
|
} |
|
|
|
void PhysCallbackDamage( CBaseEntity *pEntity, const CTakeDamageInfo &info, gamevcollisionevent_t &event, int hurtIndex ) |
|
{ |
|
Assert( physenv->IsInSimulation() ); |
|
int otherIndex = !hurtIndex; |
|
g_Collisions.AddDamageEvent( pEntity, info, event.pObjects[otherIndex], true, event.preVelocity[otherIndex], event.preAngularVelocity[otherIndex] ); |
|
} |
|
|
|
void PhysCallbackDamage( CBaseEntity *pEntity, const CTakeDamageInfo &info ) |
|
{ |
|
if ( PhysIsInCallback() ) |
|
{ |
|
CBaseEntity *pInflictor = info.GetInflictor(); |
|
IPhysicsObject *pInflictorPhysics = (pInflictor) ? pInflictor->VPhysicsGetObject() : NULL; |
|
g_Collisions.AddDamageEvent( pEntity, info, pInflictorPhysics, false, vec3_origin, vec3_origin ); |
|
if ( pEntity && info.GetInflictor() ) |
|
{ |
|
DevMsg( 2, "Warning: Physics damage event with no recovery info!\nObjects: %s, %s\n", pEntity->GetClassname(), info.GetInflictor()->GetClassname() ); |
|
} |
|
} |
|
else |
|
{ |
|
pEntity->TakeDamage( info ); |
|
} |
|
} |
|
|
|
void PhysCallbackRemove(IServerNetworkable *pRemove) |
|
{ |
|
if ( PhysIsInCallback() ) |
|
{ |
|
g_Collisions.AddRemoveObject(pRemove); |
|
} |
|
else |
|
{ |
|
UTIL_Remove(pRemove); |
|
} |
|
} |
|
|
|
void PhysSetEntityGameFlags( CBaseEntity *pEntity, unsigned short flags ) |
|
{ |
|
IPhysicsObject *pList[VPHYSICS_MAX_OBJECT_LIST_COUNT]; |
|
int count = pEntity->VPhysicsGetObjectList( pList, ARRAYSIZE(pList) ); |
|
for ( int i = 0; i < count; i++ ) |
|
{ |
|
PhysSetGameFlags( pList[i], flags ); |
|
} |
|
} |
|
|
|
bool PhysFindOrAddVehicleScript( const char *pScriptName, vehicleparams_t *pParams, vehiclesounds_t *pSounds ) |
|
{ |
|
return g_PhysicsHook.FindOrAddVehicleScript(pScriptName, pParams, pSounds); |
|
} |
|
|
|
void PhysFlushVehicleScripts() |
|
{ |
|
g_PhysicsHook.FlushVehicleScripts(); |
|
} |
|
|
|
IPhysicsObject *FindPhysicsObjectByName( const char *pName, CBaseEntity *pErrorEntity ) |
|
{ |
|
if ( !pName || !strlen(pName) ) |
|
return NULL; |
|
|
|
CBaseEntity *pEntity = NULL; |
|
IPhysicsObject *pBestObject = NULL; |
|
while (1) |
|
{ |
|
pEntity = gEntList.FindEntityByName( pEntity, pName ); |
|
if ( !pEntity ) |
|
break; |
|
if ( pEntity->VPhysicsGetObject() ) |
|
{ |
|
if ( pBestObject ) |
|
{ |
|
const char *pErrorName = pErrorEntity ? pErrorEntity->GetClassname() : "Unknown"; |
|
Vector origin = pErrorEntity ? pErrorEntity->GetAbsOrigin() : vec3_origin; |
|
DevWarning("entity %s at %s has physics attachment to more than one entity with the name %s!!!\n", pErrorName, VecToString(origin), pName ); |
|
while ( ( pEntity = gEntList.FindEntityByName( pEntity, pName ) ) != NULL ) |
|
{ |
|
DevWarning("Found %s\n", pEntity->GetClassname() ); |
|
} |
|
break; |
|
|
|
} |
|
pBestObject = pEntity->VPhysicsGetObject(); |
|
} |
|
} |
|
return pBestObject; |
|
} |
|
|
|
void CC_AirDensity( const CCommand &args ) |
|
{ |
|
if ( !physenv ) |
|
return; |
|
|
|
if ( args.ArgC() < 2 ) |
|
{ |
|
Msg( "air_density <value>\nCurrent air density is %.2f\n", physenv->GetAirDensity() ); |
|
} |
|
else |
|
{ |
|
float density = atof( args[1] ); |
|
physenv->SetAirDensity( density ); |
|
} |
|
} |
|
static ConCommand air_density("air_density", CC_AirDensity, "Changes the density of air for drag computations.", FCVAR_CHEAT); |
|
|
|
void DebugDrawContactPoints(IPhysicsObject *pPhysics) |
|
{ |
|
IPhysicsFrictionSnapshot *pSnapshot = pPhysics->CreateFrictionSnapshot(); |
|
|
|
while ( pSnapshot->IsValid() ) |
|
{ |
|
Vector pt, normal; |
|
pSnapshot->GetContactPoint( pt ); |
|
pSnapshot->GetSurfaceNormal( normal ); |
|
NDebugOverlay::Box( pt, -Vector(1,1,1), Vector(1,1,1), 0, 255, 0, 32, 0 ); |
|
NDebugOverlay::Line( pt, pt - normal * 20, 0, 255, 0, false, 0 ); |
|
IPhysicsObject *pOther = pSnapshot->GetObject(1); |
|
CBaseEntity *pEntity0 = static_cast<CBaseEntity *>(pOther->GetGameData()); |
|
CFmtStr str("%s (%s): %s [%0.2f]", pEntity0->GetClassname(), STRING(pEntity0->GetModelName()), pEntity0->GetDebugName(), pSnapshot->GetFrictionCoefficient() ); |
|
NDebugOverlay::Text( pt, str.Access(), false, 0 ); |
|
pSnapshot->NextFrictionData(); |
|
} |
|
pSnapshot->DeleteAllMarkedContacts( true ); |
|
pPhysics->DestroyFrictionSnapshot( pSnapshot ); |
|
} |
|
|
|
|
|
|
|
#if 0 |
|
|
|
#include "filesystem.h" |
|
//----------------------------------------------------------------------------- |
|
// Purpose: This will append a collide to a glview file. Then you can view the |
|
// collisionmodels with glview. |
|
// Input : *pCollide - collision model |
|
// &origin - position of the instance of this model |
|
// &angles - orientation of instance |
|
// *pFilename - output text file |
|
//----------------------------------------------------------------------------- |
|
// examples: |
|
// world: |
|
// DumpCollideToGlView( pWorldCollide->solids[0], vec3_origin, vec3_origin, "jaycollide.txt" ); |
|
// static_prop: |
|
// DumpCollideToGlView( info.m_pCollide->solids[0], info.m_Origin, info.m_Angles, "jaycollide.txt" ); |
|
// |
|
//----------------------------------------------------------------------------- |
|
void DumpCollideToGlView( CPhysCollide *pCollide, const Vector &origin, const QAngle &angles, const char *pFilename ) |
|
{ |
|
if ( !pCollide ) |
|
return; |
|
|
|
printf("Writing %s...\n", pFilename ); |
|
Vector *outVerts; |
|
int vertCount = physcollision->CreateDebugMesh( pCollide, &outVerts ); |
|
FileHandle_t fp = filesystem->Open( pFilename, "ab" ); |
|
int triCount = vertCount / 3; |
|
int vert = 0; |
|
VMatrix tmp = SetupMatrixOrgAngles( origin, angles ); |
|
int i; |
|
for ( i = 0; i < vertCount; i++ ) |
|
{ |
|
outVerts[i] = tmp.VMul4x3( outVerts[i] ); |
|
} |
|
for ( i = 0; i < triCount; i++ ) |
|
{ |
|
filesystem->FPrintf( fp, "3\n" ); |
|
filesystem->FPrintf( fp, "%6.3f %6.3f %6.3f 1 0 0\n", outVerts[vert].x, outVerts[vert].y, outVerts[vert].z ); |
|
vert++; |
|
filesystem->FPrintf( fp, "%6.3f %6.3f %6.3f 0 1 0\n", outVerts[vert].x, outVerts[vert].y, outVerts[vert].z ); |
|
vert++; |
|
filesystem->FPrintf( fp, "%6.3f %6.3f %6.3f 0 0 1\n", outVerts[vert].x, outVerts[vert].y, outVerts[vert].z ); |
|
vert++; |
|
} |
|
filesystem->Close( fp ); |
|
physcollision->DestroyDebugMesh( vertCount, outVerts ); |
|
} |
|
#endif |
|
|
|
|