d4708
/
source-engine
mirror of https://github.com/nillerusr/source-engine.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
502 Commits
25 Branches
6 Tags
221 MiB
Tree: ed901ead1a
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from 'ed901ead1a'
${ noResults }
source-engine/game/server/physobj.cpp

2144 lines
62 KiB
Raw Normal View History Unescape

1
5 years ago
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "player.h"
#include "vphysics_interface.h"
#include "physics.h"
#include "vcollide_parse.h"
#include "entitylist.h"
#include "physobj.h"
#include "hierarchy.h"
#include "game.h"
#include "ndebugoverlay.h"
#include "engine/IEngineSound.h"
#include "model_types.h"
#include "props.h"
#include "physics_saverestore.h"
#include "saverestore_utlvector.h"
#include "vphysics/constraints.h"
#include "collisionutils.h"
#include "decals.h"
#include "bone_setup.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
ConVar debug_physimpact("debug_physimpact", "0" );
const char *GetMassEquivalent(float flMass);
// This is a physically simulated spring, used to join objects together and create spring forces
//
// NOTE: Springs are not physical in the sense that they only create force, they do not collide with
// anything or have any REAL constraints. They can be stretched infinitely (though this will create
// and infinite force), they can penetrate any other object (or spring). They do not occupy any space.
//
#define SF_SPRING_ONLYSTRETCH 0x0001
class CPhysicsSpring : public CBaseEntity
{
DECLARE_CLASS( CPhysicsSpring, CBaseEntity );
public:
CPhysicsSpring();
~CPhysicsSpring();
void Spawn( void );
void Activate( void );
// Inputs
void InputSetSpringConstant( inputdata_t &inputdata );
void InputSetSpringDamping( inputdata_t &inputdata );
void InputSetSpringLength( inputdata_t &inputdata );
// Debug
int DrawDebugTextOverlays(void);
void DrawDebugGeometryOverlays(void);
void GetSpringObjectConnections( string_t nameStart, string_t nameEnd, IPhysicsObject **pStart, IPhysicsObject **pEnd );
void NotifySystemEvent( CBaseEntity *pNotify, notify_system_event_t eventType, const notify_system_event_params_t &params );
IPhysicsObject *GetStartObject() { return m_pSpring ? m_pSpring->GetStartObject() : NULL; }
IPhysicsObject *GetEndObject() { return m_pSpring ? m_pSpring->GetEndObject() : NULL; }
DECLARE_DATADESC();
private:
IPhysicsSpring *m_pSpring;
bool m_isLocal;
// These are "template" values used to construct the spring. After creation, they are not needed
float m_tempConstant;
float m_tempLength; // This is the "ideal" length of the spring, not the length it is currently stretched to.
float m_tempDamping;
float m_tempRelativeDamping;
string_t m_nameAttachStart;
string_t m_nameAttachEnd;
Vector m_start;
Vector m_end;
unsigned int m_teleportTick;
};
LINK_ENTITY_TO_CLASS( phys_spring, CPhysicsSpring );
BEGIN_DATADESC( CPhysicsSpring )
DEFINE_PHYSPTR( m_pSpring ),
DEFINE_KEYFIELD( m_tempConstant, FIELD_FLOAT, "constant" ),
DEFINE_KEYFIELD( m_tempLength, FIELD_FLOAT, "length" ),
DEFINE_KEYFIELD( m_tempDamping, FIELD_FLOAT, "damping" ),
DEFINE_KEYFIELD( m_tempRelativeDamping, FIELD_FLOAT, "relativedamping" ),
DEFINE_KEYFIELD( m_nameAttachStart, FIELD_STRING, "attach1" ),
DEFINE_KEYFIELD( m_nameAttachEnd, FIELD_STRING, "attach2" ),
DEFINE_FIELD( m_start, FIELD_POSITION_VECTOR ),
DEFINE_KEYFIELD( m_end, FIELD_POSITION_VECTOR, "springaxis" ),
DEFINE_FIELD( m_isLocal, FIELD_BOOLEAN ),
// Not necessary to save... it's only there to make sure
// DEFINE_FIELD( m_teleportTick, FIELD_INTEGER ),
// Inputs
DEFINE_INPUTFUNC( FIELD_FLOAT, "SetSpringConstant", InputSetSpringConstant ),
DEFINE_INPUTFUNC( FIELD_FLOAT, "SetSpringLength", InputSetSpringLength ),
DEFINE_INPUTFUNC( FIELD_FLOAT, "SetSpringDamping", InputSetSpringDamping ),
END_DATADESC()
// debug function - slow, uses dynamic_cast<> - use this to query the attached objects
// physics_debug_entity toggles the constraint system for an object using this
bool GetSpringAttachments( CBaseEntity *pEntity, CBaseEntity *pAttachOut[2], IPhysicsObject *pAttachVPhysics[2] )
{
CPhysicsSpring *pSpringEntity = dynamic_cast<CPhysicsSpring *>(pEntity);
if ( pSpringEntity )
{
IPhysicsObject *pRef = pSpringEntity->GetStartObject();
pAttachOut[0] = pRef ? static_cast<CBaseEntity *>(pRef->GetGameData()) : NULL;
pAttachVPhysics[0] = pRef;
IPhysicsObject *pAttach = pSpringEntity->GetEndObject();
pAttachOut[1] = pAttach ? static_cast<CBaseEntity *>(pAttach->GetGameData()) : NULL;
pAttachVPhysics[1] = pAttach;
return true;
}
return false;
}
CPhysicsSpring::CPhysicsSpring( void )
{
#ifdef _DEBUG
m_start.Init();
m_end.Init();
#endif
m_pSpring = NULL;
m_tempConstant = 150;
m_tempLength = 0;
m_tempDamping = 2.0;
m_tempRelativeDamping = 0.01;
m_isLocal = false;
m_teleportTick = 0xFFFFFFFF;
}
CPhysicsSpring::~CPhysicsSpring( void )
{
if ( m_pSpring )
{
physenv->DestroySpring( m_pSpring );
}
}
//------------------------------------------------------------------------------
// Purpose:
//------------------------------------------------------------------------------
void CPhysicsSpring::InputSetSpringConstant( inputdata_t &inputdata )
{
m_tempConstant = inputdata.value.Float();
m_pSpring->SetSpringConstant(inputdata.value.Float());
}
//------------------------------------------------------------------------------
// Purpose:
//------------------------------------------------------------------------------
void CPhysicsSpring::InputSetSpringDamping( inputdata_t &inputdata )
{
m_tempDamping = inputdata.value.Float();
m_pSpring->SetSpringDamping(inputdata.value.Float());
}
//------------------------------------------------------------------------------
// Purpose:
//------------------------------------------------------------------------------
void CPhysicsSpring::InputSetSpringLength( inputdata_t &inputdata )
{
m_tempLength = inputdata.value.Float();
m_pSpring->SetSpringLength(inputdata.value.Float());
}
//-----------------------------------------------------------------------------
// Purpose: Draw any debug text overlays
// Output : Current text offset from the top
//-----------------------------------------------------------------------------
int CPhysicsSpring::DrawDebugTextOverlays(void)
{
int text_offset = BaseClass::DrawDebugTextOverlays();
if (m_debugOverlays & OVERLAY_TEXT_BIT)
{
char tempstr[512];
Q_snprintf(tempstr,sizeof(tempstr),"Constant: %3.2f",m_tempConstant);
EntityText(text_offset,tempstr,0);
text_offset++;
Q_snprintf(tempstr,sizeof(tempstr),"Length: %3.2f",m_tempLength);
EntityText(text_offset,tempstr,0);
text_offset++;
Q_snprintf(tempstr,sizeof(tempstr),"Damping: %3.2f",m_tempDamping);
EntityText(text_offset,tempstr,0);
text_offset++;
}
return text_offset;
}
//-----------------------------------------------------------------------------
// Purpose: Override base class to add display of fly direction
// Input :
// Output :
//-----------------------------------------------------------------------------
void CPhysicsSpring::DrawDebugGeometryOverlays(void)
{
if ( !m_pSpring )
return;
// ------------------------------
// Draw if BBOX is on
// ------------------------------
if (m_debugOverlays & OVERLAY_BBOX_BIT)
{
Vector vStartPos;
Vector vEndPos;
m_pSpring->GetEndpoints( &vStartPos, &vEndPos );
Vector vSpringDir = vEndPos - vStartPos;
VectorNormalize(vSpringDir);
Vector vLength = vStartPos + (vSpringDir*m_tempLength);
NDebugOverlay::Line(vStartPos, vLength, 0,0,255, false, 0);
NDebugOverlay::Line(vLength, vEndPos, 255,0,0, false, 0);
}
BaseClass::DrawDebugGeometryOverlays();
}
bool PointIsNearer( IPhysicsObject *pObject1, const Vector &point1, const Vector &point2 )
{
Vector center;
pObject1->GetPosition( &center, 0 );
float dist1 = (center - point1).LengthSqr();
float dist2 = (center - point2).LengthSqr();
if ( dist1 < dist2 )
return true;
return false;
}
void CPhysicsSpring::GetSpringObjectConnections( string_t nameStart, string_t nameEnd, IPhysicsObject **pStart, IPhysicsObject **pEnd )
{
IPhysicsObject *pStartObject = FindPhysicsObjectByName( STRING(nameStart), this );
IPhysicsObject *pEndObject = FindPhysicsObjectByName( STRING(nameEnd), this );
// Assume the world for missing objects
if ( !pStartObject )
{
pStartObject = g_PhysWorldObject;
}
else if ( !pEndObject )
{
// try to sort so that the world is always the start object
pEndObject = pStartObject;
pStartObject = g_PhysWorldObject;
}
else
{
CBaseEntity *pEntity0 = (CBaseEntity *) (pStartObject->GetGameData());
if ( pEntity0 )
{
g_pNotify->AddEntity( this, pEntity0 );
}
CBaseEntity *pEntity1 = (CBaseEntity *) pEndObject->GetGameData();
if ( pEntity1 )
{
g_pNotify->AddEntity( this, pEntity1 );
}
}
*pStart = pStartObject;
*pEnd = pEndObject;
}
void CPhysicsSpring::Activate( void )
{
BaseClass::Activate();
// UNDONE: save/restore all data, and only create the spring here
if ( !m_pSpring )
{
IPhysicsObject *pStart, *pEnd;
GetSpringObjectConnections( m_nameAttachStart, m_nameAttachEnd, &pStart, &pEnd );
// Needs to connect to real, different objects
if ( (!pStart || !pEnd) || (pStart == pEnd) )
{
DevMsg("ERROR: Can't init spring %s from \"%s\" to \"%s\"\n", GetDebugName(), STRING(m_nameAttachStart), STRING(m_nameAttachEnd) );
UTIL_Remove( this );
return;
}
// if m_end is not closer to pEnd than m_start, swap
if ( !PointIsNearer( pEnd, m_end, m_start ) )
{
Vector tmpVec = m_start;
m_start = m_end;
m_end = tmpVec;
}
// create the spring
springparams_t spring;
spring.constant = m_tempConstant;
spring.damping = m_tempDamping;
spring.naturalLength = m_tempLength;
spring.relativeDamping = m_tempRelativeDamping;
spring.startPosition = m_start;
spring.endPosition = m_end;
spring.useLocalPositions = false;
spring.onlyStretch = HasSpawnFlags( SF_SPRING_ONLYSTRETCH );
m_pSpring = physenv->CreateSpring( pStart, pEnd, &spring );
}
}
void CPhysicsSpring::Spawn( void )
{
SetSolid( SOLID_NONE );
m_start = GetAbsOrigin();
if ( m_tempLength <= 0 )
{
m_tempLength = (m_end - m_start).Length();
}
}
void CPhysicsSpring::NotifySystemEvent( CBaseEntity *pNotify, notify_system_event_t eventType, const notify_system_event_params_t &params )
{
// don't recurse
if ( eventType != NOTIFY_EVENT_TELEPORT || (unsigned int)gpGlobals->tickcount == m_teleportTick )
return;
m_teleportTick = gpGlobals->tickcount;
PhysTeleportConstrainedEntity( pNotify, m_pSpring->GetStartObject(), m_pSpring->GetEndObject(), params.pTeleport->prevOrigin, params.pTeleport->prevAngles, params.pTeleport->physicsRotate );
}
// ---------------------------------------------------------------------
//
// CPhysBox -- physically simulated brush
//
// ---------------------------------------------------------------------
// SendTable stuff.
IMPLEMENT_SERVERCLASS_ST(CPhysBox, DT_PhysBox)
END_SEND_TABLE()
LINK_ENTITY_TO_CLASS( func_physbox, CPhysBox );
BEGIN_DATADESC( CPhysBox )
DEFINE_FIELD( m_hCarryingPlayer, FIELD_EHANDLE ),
DEFINE_KEYFIELD( m_massScale, FIELD_FLOAT, "massScale" ),
DEFINE_KEYFIELD( m_damageType, FIELD_INTEGER, "Damagetype" ),
DEFINE_KEYFIELD( m_iszOverrideScript, FIELD_STRING, "overridescript" ),
DEFINE_KEYFIELD( m_damageToEnableMotion, FIELD_INTEGER, "damagetoenablemotion" ),
DEFINE_KEYFIELD( m_flForceToEnableMotion, FIELD_FLOAT, "forcetoenablemotion" ),
DEFINE_KEYFIELD( m_angPreferredCarryAngles, FIELD_VECTOR, "preferredcarryangles" ),
DEFINE_KEYFIELD( m_bNotSolidToWorld, FIELD_BOOLEAN, "notsolid" ),
DEFINE_INPUTFUNC( FIELD_VOID, "Wake", InputWake ),
DEFINE_INPUTFUNC( FIELD_VOID, "Sleep", InputSleep ),
DEFINE_INPUTFUNC( FIELD_VOID, "EnableMotion", InputEnableMotion ),
DEFINE_INPUTFUNC( FIELD_VOID, "DisableMotion", InputDisableMotion ),
DEFINE_INPUTFUNC( FIELD_VOID, "ForceDrop", InputForceDrop ),
DEFINE_INPUTFUNC( FIELD_VOID, "DisableFloating", InputDisableFloating ),
// Function pointers
DEFINE_ENTITYFUNC( BreakTouch ),
// Outputs
DEFINE_OUTPUT( m_OnDamaged, "OnDamaged" ),
DEFINE_OUTPUT( m_OnAwakened, "OnAwakened" ),
DEFINE_OUTPUT( m_OnMotionEnabled, "OnMotionEnabled" ),
DEFINE_OUTPUT( m_OnPhysGunPickup, "OnPhysGunPickup" ),
DEFINE_OUTPUT( m_OnPhysGunPunt, "OnPhysGunPunt" ),
DEFINE_OUTPUT( m_OnPhysGunOnlyPickup, "OnPhysGunOnlyPickup" ),
DEFINE_OUTPUT( m_OnPhysGunDrop, "OnPhysGunDrop" ),
DEFINE_OUTPUT( m_OnPlayerUse, "OnPlayerUse" ),
END_DATADESC()
// UNDONE: Save/Restore needs to take the physics object's properties into account
// UNDONE: Acceleration, velocity, angular velocity, etc. must be preserved
// UNDONE: Many of these quantities are relative to a coordinate frame
// UNDONE: Translate when going across transitions?
// UNDONE: Build transition transformation, and transform data in save/restore for IPhysicsObject
// UNDONE: Angles are saved in the entity, but not propagated back to the IPhysicsObject on restore
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::Spawn( void )
{
// Initialize damage modifiers. Must be done before baseclass spawn.
m_flDmgModBullet = func_breakdmg_bullet.GetFloat();
m_flDmgModClub = func_breakdmg_club.GetFloat();
m_flDmgModExplosive = func_breakdmg_explosive.GetFloat();
ParsePropData();
Precache();
m_iMaxHealth = ( m_iHealth > 0 ) ? m_iHealth : 1;
if ( HasSpawnFlags( SF_BREAK_TRIGGER_ONLY ) )
{
m_takedamage = DAMAGE_EVENTS_ONLY;
AddSpawnFlags( SF_BREAK_DONT_TAKE_PHYSICS_DAMAGE );
}
else if ( m_iHealth == 0 )
{
m_takedamage = DAMAGE_EVENTS_ONLY;
AddSpawnFlags( SF_BREAK_DONT_TAKE_PHYSICS_DAMAGE );
}
else
{
m_takedamage = DAMAGE_YES;
}
SetMoveType( MOVETYPE_NONE );
SetAbsVelocity( vec3_origin );
SetModel( STRING( GetModelName() ) );
SetSolid( SOLID_VPHYSICS );
if ( HasSpawnFlags( SF_PHYSBOX_DEBRIS ) )
{
SetCollisionGroup( COLLISION_GROUP_DEBRIS );
}
if ( HasSpawnFlags( SF_PHYSBOX_NO_ROTORWASH_PUSH ) )
{
AddEFlags( EFL_NO_ROTORWASH_PUSH );
}
if ( m_bNotSolidToWorld )
{
AddSolidFlags( FSOLID_NOT_SOLID );
}
CreateVPhysics();
m_hCarryingPlayer = NULL;
SetTouch( &CPhysBox::BreakTouch );
if ( HasSpawnFlags( SF_BREAK_TRIGGER_ONLY ) ) // Only break on trigger
{
SetTouch( NULL );
}
if ( m_impactEnergyScale == 0 )
{
m_impactEnergyScale = 1.0;
}
}
// shared from studiomdl, checks for long, thin objects and adds some damping
// to prevent endless rolling due to low inertia
static bool ShouldDampRotation( const CPhysCollide *pCollide )
{
Vector mins, maxs;
physcollision->CollideGetAABB( &mins, &maxs, pCollide, vec3_origin, vec3_angle );
Vector size = maxs-mins;
int largest = 0;
float largeSize = size[0];
for ( int i = 1; i < 3; i++ )
{
if ( size[i] > largeSize )
{
largeSize = size[i];
largest = i;
}
}
size[largest] = 0;
float len = size.Length();
if ( len > 0 )
{
float sizeRatio = largeSize / len;
// HACKHACK: Hardcoded size ratio to induce damping
// This prevents long skinny objects from rolling endlessly
if ( sizeRatio > 9 )
return true;
}
return false;
}
bool CPhysBox::CreateVPhysics()
{
solid_t tmpSolid;
PhysModelParseSolid( tmpSolid, this, GetModelIndex() );
if ( m_massScale > 0 )
{
tmpSolid.params.mass *= m_massScale;
}
vcollide_t *pVCollide = modelinfo->GetVCollide( GetModelIndex() );
PhysGetMassCenterOverride( this, pVCollide, tmpSolid );
PhysSolidOverride( tmpSolid, m_iszOverrideScript );
if ( tmpSolid.params.rotdamping < 1.0f && ShouldDampRotation(pVCollide->solids[0]) )
{
tmpSolid.params.rotdamping = 1.0f;
}
IPhysicsObject *pPhysics = VPhysicsInitNormal( GetSolid(), GetSolidFlags(), true, &tmpSolid );
if ( m_damageType == 1 )
{
PhysSetGameFlags( pPhysics, FVPHYSICS_DMG_SLICE );
}
// Wake it up if not asleep
if ( !HasSpawnFlags(SF_PHYSBOX_ASLEEP) )
{
pPhysics->Wake();
}
if ( HasSpawnFlags(SF_PHYSBOX_MOTIONDISABLED) || m_damageToEnableMotion > 0 || m_flForceToEnableMotion > 0 )
{
pPhysics->EnableMotion( false );
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CPhysBox::ObjectCaps()
{
int caps = BaseClass::ObjectCaps() | FCAP_WCEDIT_POSITION;
if ( HasSpawnFlags( SF_PHYSBOX_ENABLE_PICKUP_OUTPUT ) )
{
caps |= FCAP_IMPULSE_USE;
}
else if ( !HasSpawnFlags( SF_PHYSBOX_IGNOREUSE ) )
{
if ( CBasePlayer::CanPickupObject( this, 35, 128 ) )
{
caps |= FCAP_IMPULSE_USE;
}
}
return caps;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
{
CBasePlayer *pPlayer = ToBasePlayer( pActivator );
if ( pPlayer )
{
if ( HasSpawnFlags( SF_PHYSBOX_ENABLE_PICKUP_OUTPUT ) )
{
m_OnPlayerUse.FireOutput( this, this );
}
if ( !HasSpawnFlags( SF_PHYSBOX_IGNOREUSE ) )
{
pPlayer->PickupObject( this );
}
}
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
bool CPhysBox::CanBePickedUpByPhyscannon()
{
if ( HasSpawnFlags( SF_PHYSBOX_NEVER_PICK_UP ) )
return false;
IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
if ( !pPhysicsObject )
return false;
if ( !pPhysicsObject->IsMotionEnabled() && !HasSpawnFlags( SF_PHYSBOX_ENABLE_ON_PHYSCANNON ) )
return false;
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Draw any debug text overlays
// Output : Current text offset from the top
//-----------------------------------------------------------------------------
int CPhysBox::DrawDebugTextOverlays(void)
{
int text_offset = BaseClass::DrawDebugTextOverlays();
if (m_debugOverlays & OVERLAY_TEXT_BIT)
{
if (VPhysicsGetObject())
{
char tempstr[512];
Q_snprintf(tempstr, sizeof(tempstr),"Mass: %.2f kg / %.2f lb (%s)", VPhysicsGetObject()->GetMass(), kg2lbs(VPhysicsGetObject()->GetMass()), GetMassEquivalent(VPhysicsGetObject()->GetMass()));
EntityText( text_offset, tempstr, 0);
text_offset++;
}
}
return text_offset;
}
//-----------------------------------------------------------------------------
// Purpose: Input handler that breaks the physics object away from its parent
// and starts it simulating.
//-----------------------------------------------------------------------------
void CPhysBox::InputWake( inputdata_t &inputdata )
{
VPhysicsGetObject()->Wake();
}
//-----------------------------------------------------------------------------
// Purpose: Input handler that breaks the physics object away from its parent
// and stops it simulating.
//-----------------------------------------------------------------------------
void CPhysBox::InputSleep( inputdata_t &inputdata )
{
VPhysicsGetObject()->Sleep();
}
//-----------------------------------------------------------------------------
// Purpose: Enable physics motion and collision response (on by default)
//-----------------------------------------------------------------------------
void CPhysBox::InputEnableMotion( inputdata_t &inputdata )
{
EnableMotion();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::EnableMotion( void )
{
IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
if ( pPhysicsObject != NULL )
{
pPhysicsObject->EnableMotion( true );
pPhysicsObject->Wake();
}
m_damageToEnableMotion = 0;
m_flForceToEnableMotion = 0;
m_OnMotionEnabled.FireOutput( this, this, 0 );
}
//-----------------------------------------------------------------------------
// Purpose: Disable any physics motion or collision response
//-----------------------------------------------------------------------------
void CPhysBox::InputDisableMotion( inputdata_t &inputdata )
{
IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
if ( pPhysicsObject != NULL )
{
pPhysicsObject->EnableMotion( false );
}
}
// Turn off floating simulation (and cost)
void CPhysBox::InputDisableFloating( inputdata_t &inputdata )
{
PhysEnableFloating( VPhysicsGetObject(), false );
}
//-----------------------------------------------------------------------------
// Purpose: If we're being held by the player's hand/physgun, force it to drop us
//-----------------------------------------------------------------------------
void CPhysBox::InputForceDrop( inputdata_t &inputdata )
{
if ( m_hCarryingPlayer )
{
m_hCarryingPlayer->ForceDropOfCarriedPhysObjects();
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::Move( const Vector &direction )
{
VPhysicsGetObject()->ApplyForceCenter( direction );
}
// Update the visible representation of the physic system's representation of this object
void CPhysBox::VPhysicsUpdate( IPhysicsObject *pPhysics )
{
BaseClass::VPhysicsUpdate( pPhysics );
// if this is the first time we have moved, fire our target
if ( HasSpawnFlags( SF_PHYSBOX_ASLEEP ) )
{
if ( !pPhysics->IsAsleep() )
{
m_OnAwakened.FireOutput(this, this);
FireTargets( STRING(m_target), this, this, USE_TOGGLE, 0 );
RemoveSpawnFlags( SF_PHYSBOX_ASLEEP );
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason )
{
if ( reason == PUNTED_BY_CANNON )
{
m_OnPhysGunPunt.FireOutput( pPhysGunUser, this );
}
IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
if ( pPhysicsObject && !pPhysicsObject->IsMoveable() )
{
if ( !HasSpawnFlags( SF_PHYSBOX_ENABLE_ON_PHYSCANNON ) )
return;
EnableMotion();
}
m_OnPhysGunPickup.FireOutput( pPhysGunUser, this );
// Are we just being punted?
if ( reason == PUNTED_BY_CANNON )
return;
if( reason == PICKED_UP_BY_CANNON )
{
m_OnPhysGunOnlyPickup.FireOutput( pPhysGunUser, this );
}
m_hCarryingPlayer = pPhysGunUser;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t Reason )
{
BaseClass::OnPhysGunDrop( pPhysGunUser, Reason );
m_hCarryingPlayer = NULL;
m_OnPhysGunDrop.FireOutput( pPhysGunUser, this );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysBox::VPhysicsCollision( int index, gamevcollisionevent_t *pEvent )
{
BaseClass::VPhysicsCollision( index, pEvent );
IPhysicsObject *pPhysObj = pEvent->pObjects[!index];
// If we have a force to enable motion, and we're still disabled, check to see if this should enable us
if ( m_flForceToEnableMotion )
{
CBaseEntity *pOther = static_cast<CBaseEntity *>(pPhysObj->GetGameData());
// Don't allow the player to bump an object active if we've requested not to
if ( ( pOther && pOther->IsPlayer() && HasSpawnFlags( SF_PHYSBOX_PREVENT_PLAYER_TOUCH_ENABLE ) ) == false )
{
// Large enough to enable motion?
float flForce = pEvent->collisionSpeed * pEvent->pObjects[!index]->GetMass();
if ( flForce >= m_flForceToEnableMotion )
{
EnableMotion();
}
}
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CPhysBox::OnTakeDamage( const CTakeDamageInfo &info )
{
if ( IsMarkedForDeletion() )
return 0;
// note: if motion is disabled, OnTakeDamage can't apply physics force
int ret = BaseClass::OnTakeDamage( info );
if ( info.GetInflictor() )
{
m_OnDamaged.FireOutput( info.GetAttacker(), this );
}
// Have we been broken? If so, abort
if ( GetHealth() <= 0 )
return ret;
// If we have a force to enable motion, and we're still disabled, check to see if this should enable us
if ( m_flForceToEnableMotion )
{
// Large enough to enable motion?
float flForce = info.GetDamageForce().Length();
if ( flForce >= m_flForceToEnableMotion )
{
IPhysicsObject *pPhysicsObject = VPhysicsGetObject();
if ( pPhysicsObject )
{
EnableMotion();
}
}
}
// Check our health against the threshold:
if( m_damageToEnableMotion > 0 && GetHealth() < m_damageToEnableMotion )
{
EnableMotion();
VPhysicsTakeDamage( info );
}
return ret;
}
//-----------------------------------------------------------------------------
// Purpose: Return true if this physbox has preferred carry angles
//-----------------------------------------------------------------------------
bool CPhysBox::HasPreferredCarryAnglesForPlayer( CBasePlayer *pPlayer )
{
return HasSpawnFlags( SF_PHYSBOX_USEPREFERRED );
}
// ---------------------------------------------------------------------
//
// CPhysExplosion -- physically simulated explosion
//
// ---------------------------------------------------------------------
#define SF_PHYSEXPLOSION_NODAMAGE 0x0001
#define SF_PHYSEXPLOSION_PUSH_PLAYER 0x0002
#define SF_PHYSEXPLOSION_RADIAL 0x0004
#define SF_PHYSEXPLOSION_TEST_LOS 0x0008
#define SF_PHYSEXPLOSION_DISORIENT_PLAYER 0x0010
LINK_ENTITY_TO_CLASS( env_physexplosion, CPhysExplosion );
BEGIN_DATADESC( CPhysExplosion )
DEFINE_KEYFIELD( m_damage, FIELD_FLOAT, "magnitude" ),
DEFINE_KEYFIELD( m_radius, FIELD_FLOAT, "radius" ),
DEFINE_KEYFIELD( m_targetEntityName, FIELD_STRING, "targetentityname" ),
DEFINE_KEYFIELD( m_flInnerRadius, FIELD_FLOAT, "inner_radius" ),
// Inputs
DEFINE_INPUTFUNC( FIELD_VOID, "Explode", InputExplode ),
// Outputs
DEFINE_OUTPUT( m_OnPushedPlayer, "OnPushedPlayer" ),
END_DATADESC()
void CPhysExplosion::Spawn( void )
{
SetMoveType( MOVETYPE_NONE );
SetSolid( SOLID_NONE );
SetModelName( NULL_STRING );
}
float CPhysExplosion::GetRadius( void )
{
float radius = m_radius;
if ( radius <= 0 )
{
// Use the same radius as combat
radius = m_damage * 2.5;
}
return radius;
}
CBaseEntity *CPhysExplosion::FindEntity( CBaseEntity *pEntity, CBaseEntity *pActivator, CBaseEntity *pCaller )
{
// Filter by name or classname
if ( m_targetEntityName != NULL_STRING )
{
// Try an explicit name first
CBaseEntity *pTarget = gEntList.FindEntityByName( pEntity, m_targetEntityName, NULL, pActivator, pCaller );
if ( pTarget != NULL )
return pTarget;
// Failing that, try a classname
return gEntList.FindEntityByClassnameWithin( pEntity, STRING(m_targetEntityName), GetAbsOrigin(), GetRadius() );
}
// Just find anything in the radius
return gEntList.FindEntityInSphere( pEntity, GetAbsOrigin(), GetRadius() );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysExplosion::InputExplode( inputdata_t &inputdata )
{
Explode( inputdata.pActivator, inputdata.pCaller );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysExplosion::Explode( CBaseEntity *pActivator, CBaseEntity *pCaller )
{
CBaseEntity *pEntity = NULL;
float adjustedDamage, falloff, flDist;
Vector vecSpot, vecOrigin;
falloff = 1.0 / 2.5;
// iterate on all entities in the vicinity.
// I've removed the traceline heuristic from phys explosions. SO right now they will
// affect entities through walls. (sjb)
// UNDONE: Try tracing world-only?
while ((pEntity = FindEntity( pEntity, pActivator, pCaller )) != NULL)
{
// UNDONE: Ask the object if it should get force if it's not MOVETYPE_VPHYSICS?
if ( pEntity->m_takedamage != DAMAGE_NO && (pEntity->GetMoveType() == MOVETYPE_VPHYSICS || (pEntity->VPhysicsGetObject() /*&& !pEntity->IsPlayer()*/)) )
{
vecOrigin = GetAbsOrigin();
vecSpot = pEntity->BodyTarget( vecOrigin );
// Squash this down to a circle
if ( HasSpawnFlags( SF_PHYSEXPLOSION_RADIAL ) )
{
vecOrigin[2] = vecSpot[2];
}
// decrease damage for an ent that's farther from the bomb.
flDist = ( vecOrigin - vecSpot ).Length();
if( m_radius == 0 || flDist <= m_radius )
{
if ( HasSpawnFlags( SF_PHYSEXPLOSION_TEST_LOS ) )
{
Vector vecStartPos = GetAbsOrigin();
Vector vecEndPos = pEntity->BodyTarget( vecStartPos, false );
if ( m_flInnerRadius != 0.0f )
{
// Find a point on our inner radius sphere to begin from
Vector vecDirToTarget = ( vecEndPos - vecStartPos );
VectorNormalize( vecDirToTarget );
vecStartPos = GetAbsOrigin() + ( vecDirToTarget * m_flInnerRadius );
}
trace_t tr;
UTIL_TraceLine( vecStartPos,
pEntity->BodyTarget( vecStartPos, false ),
MASK_SOLID_BRUSHONLY,
this,
COLLISION_GROUP_NONE,
&tr );
// Shielded
if ( tr.fraction < 1.0f && tr.m_pEnt != pEntity )
continue;
}
adjustedDamage = flDist * falloff;
adjustedDamage = m_damage - adjustedDamage;
if ( adjustedDamage < 1 )
{
adjustedDamage = 1;
}
CTakeDamageInfo info( this, this, adjustedDamage, DMG_BLAST );
CalculateExplosiveDamageForce( &info, (vecSpot - vecOrigin), vecOrigin );
if ( HasSpawnFlags( SF_PHYSEXPLOSION_PUSH_PLAYER ) )
{
if ( pEntity->IsPlayer() )
{
Vector vecPushDir = ( pEntity->BodyTarget( GetAbsOrigin(), false ) - GetAbsOrigin() );
float dist = VectorNormalize( vecPushDir );
float flFalloff = RemapValClamped( dist, m_radius, m_radius*0.75f, 0.0f, 1.0f );
if ( HasSpawnFlags( SF_PHYSEXPLOSION_DISORIENT_PLAYER ) )
{
//Disorient the player
QAngle vecDeltaAngles;
vecDeltaAngles.x = random->RandomInt( -30, 30 );
vecDeltaAngles.y = random->RandomInt( -30, 30 );
vecDeltaAngles.z = 0.0f;
CBasePlayer *pPlayer = ToBasePlayer( pEntity );
pPlayer->SnapEyeAngles( GetLocalAngles() + vecDeltaAngles );
pEntity->ViewPunch( vecDeltaAngles );
}
Vector vecPush = (vecPushDir*m_damage*flFalloff*2.0f);
if ( pEntity->GetFlags() & FL_BASEVELOCITY )
{
vecPush = vecPush + pEntity->GetBaseVelocity();
}
if ( vecPush.z > 0 && (pEntity->GetFlags() & FL_ONGROUND) )
{
pEntity->SetGroundEntity( NULL );
Vector origin = pEntity->GetAbsOrigin();
origin.z += 1.0f;
pEntity->SetAbsOrigin( origin );
}
pEntity->SetBaseVelocity( vecPush );
pEntity->AddFlag( FL_BASEVELOCITY );
// Fire an output that the player has been pushed
m_OnPushedPlayer.FireOutput( this, this );
continue;
}
}
if ( HasSpawnFlags( SF_PHYSEXPLOSION_NODAMAGE ) )
{
pEntity->VPhysicsTakeDamage( info );
}
else
{
pEntity->TakeDamage( info );
}
}
}
}
}
//-----------------------------------------------------------------------------
// Purpose: Draw any debug text overlays
// Output : Current text offset from the top
//-----------------------------------------------------------------------------
int CPhysExplosion::DrawDebugTextOverlays( void )
{
int text_offset = BaseClass::DrawDebugTextOverlays();
if (m_debugOverlays & OVERLAY_TEXT_BIT)
{
char tempstr[512];
// print magnitude
Q_snprintf(tempstr,sizeof(tempstr)," magnitude: %f", m_damage);
EntityText(text_offset,tempstr,0);
text_offset++;
// print target entity
Q_snprintf(tempstr,sizeof(tempstr)," limit to: %s", STRING(m_targetEntityName));
EntityText(text_offset,tempstr,0);
text_offset++;
}
return text_offset;
}
//==================================================
// CPhysImpact
//==================================================
#define bitsPHYSIMPACT_NOFALLOFF 0x00000001
#define bitsPHYSIMPACT_INFINITE_LENGTH 0x00000002
#define bitsPHYSIMPACT_IGNORE_MASS 0x00000004
#define bitsPHYSIMPACT_IGNORE_NORMAL 0x00000008
#define DEFAULT_EXPLODE_DISTANCE 256
LINK_ENTITY_TO_CLASS( env_physimpact, CPhysImpact );
BEGIN_DATADESC( CPhysImpact )
DEFINE_KEYFIELD( m_damage, FIELD_FLOAT, "magnitude" ),
DEFINE_KEYFIELD( m_distance, FIELD_FLOAT, "distance" ),
DEFINE_KEYFIELD( m_directionEntityName,FIELD_STRING, "directionentityname" ),
// Function pointers
DEFINE_FUNCTION( PointAtEntity ),
DEFINE_INPUTFUNC( FIELD_VOID, "Impact", InputImpact ),
END_DATADESC()
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysImpact::Activate( void )
{
BaseClass::Activate();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysImpact::Spawn( void )
{
SetMoveType( MOVETYPE_NONE );
SetSolid( SOLID_NONE );
SetModelName( NULL_STRING );
//If not targetted, and no distance is set, give it a default value
if ( m_distance == 0 )
{
m_distance = DEFAULT_EXPLODE_DISTANCE;
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysImpact::PointAtEntity( void )
{
//If we're not targetted at anything, don't bother
if ( m_directionEntityName == NULL_STRING )
return;
UTIL_PointAtNamedEntity( this, m_directionEntityName );
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pActivator -
// *pCaller -
// useType -
// value -
//-----------------------------------------------------------------------------
void CPhysImpact::InputImpact( inputdata_t &inputdata )
{
Vector dir;
trace_t trace;
//If we have a direction target, setup to point at it
if ( m_directionEntityName != NULL_STRING )
{
PointAtEntity();
}
AngleVectors( GetAbsAngles(), &dir );
//Setup our trace information
float dist = HasSpawnFlags( bitsPHYSIMPACT_INFINITE_LENGTH ) ? MAX_TRACE_LENGTH : m_distance;
Vector start = GetAbsOrigin();
Vector end = start + ( dir * dist );
//Trace out
UTIL_TraceLine( start, end, MASK_SHOT, this, COLLISION_GROUP_NONE, &trace );
if ( trace.startsolid )
{
// ep1_citadel_04 has a phys_impact just behind another entity, so if we startsolid then
// bump out just a little and retry the trace
Vector startOffset = start + ( dir * 0.1 );
UTIL_TraceLine( startOffset , end, MASK_SHOT, this, COLLISION_GROUP_NONE, &trace );
}
if( debug_physimpact.GetBool() )
{
NDebugOverlay::Cross3D( start, 24, 255, 255, 255, false, 30 );
NDebugOverlay::Line( trace.startpos, trace.endpos, 0, 255, 0, false, 30 );
}
if ( trace.fraction != 1.0 )
{
// if inside the object, just go opposite the direction
if ( trace.startsolid )
{
trace.plane.normal = -dir;
}
CBaseEntity *pEnt = trace.m_pEnt;
IPhysicsObject *pPhysics = pEnt->VPhysicsGetObject();
//If the entity is valid, hit it
if ( ( pEnt != NULL ) && ( pPhysics != NULL ) )
{
CTakeDamageInfo info;
info.SetAttacker( this);
info.SetInflictor( this );
info.SetDamage( 0 );
info.SetDamageForce( vec3_origin );
info.SetDamageType( DMG_GENERIC );
pEnt->DispatchTraceAttack( info, dir, &trace );
ApplyMultiDamage();
//Damage falls off unless specified or the ray's length is infinite
float damage = HasSpawnFlags( bitsPHYSIMPACT_NOFALLOFF | bitsPHYSIMPACT_INFINITE_LENGTH ) ?
m_damage : (m_damage * (1.0f-trace.fraction));
if ( HasSpawnFlags( bitsPHYSIMPACT_IGNORE_MASS ) )
{
damage *= pPhysics->GetMass();
}
if( debug_physimpact.GetBool() )
{
NDebugOverlay::Line( trace.endpos, trace.endpos + trace.plane.normal * -128, 255, 0, 0, false, 30 );
}
// Legacy entities applied the force along the impact normal, which yielded unpredictable results.
if ( !HasSpawnFlags( bitsPHYSIMPACT_IGNORE_NORMAL ) )
{
dir = -trace.plane.normal;
}
pPhysics->ApplyForceOffset( damage * dir * phys_pushscale.GetFloat(), trace.endpos );
}
}
}
class CSimplePhysicsBrush : public CBaseEntity
{
DECLARE_CLASS( CSimplePhysicsBrush, CBaseEntity );
public:
void Spawn()
{
SetModel( STRING( GetModelName() ) );
SetMoveType( MOVETYPE_VPHYSICS );
SetSolid( SOLID_VPHYSICS );
m_takedamage = DAMAGE_EVENTS_ONLY;
}
};
LINK_ENTITY_TO_CLASS( simple_physics_brush, CSimplePhysicsBrush );
class CSimplePhysicsProp : public CBaseProp
{
DECLARE_CLASS( CSimplePhysicsProp, CBaseProp );
public:
void Spawn()
{
BaseClass::Spawn();
SetMoveType( MOVETYPE_VPHYSICS );
SetSolid( SOLID_VPHYSICS );
m_takedamage = DAMAGE_EVENTS_ONLY;
}
int ObjectCaps()
{
int caps = BaseClass::ObjectCaps() | FCAP_WCEDIT_POSITION;
if ( CBasePlayer::CanPickupObject( this, 35, 128 ) )
{
caps |= FCAP_IMPULSE_USE;
}
return caps;
}
void Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
{
CBasePlayer *pPlayer = ToBasePlayer( pActivator );
if ( pPlayer )
{
pPlayer->PickupObject( this );
}
}
};
LINK_ENTITY_TO_CLASS( simple_physics_prop, CSimplePhysicsProp );
// UNDONE: Is this worth it?, just recreate the object instead? (that happens when this returns false anyway)
// recreating works, but is more expensive and won't inherit properties (velocity, constraints, etc)
bool TransferPhysicsObject( CBaseEntity *pFrom, CBaseEntity *pTo, bool wakeUp )
{
IPhysicsObject *pVPhysics = pFrom->VPhysicsGetObject();
if ( !pVPhysics || pVPhysics->IsStatic() )
return false;
// clear out the pointer so it won't get deleted
pFrom->VPhysicsSwapObject( NULL );
// remove any AI behavior bound to it
pVPhysics->RemoveShadowController();
// transfer to the new owner
pTo->VPhysicsSetObject( pVPhysics );
pVPhysics->SetGameData( (void *)pTo );
pTo->VPhysicsUpdate( pVPhysics );
// may have been temporarily disabled by the old object
pVPhysics->EnableMotion( true );
pVPhysics->EnableGravity( true );
// Update for the new entity solid type
pVPhysics->RecheckCollisionFilter();
if ( wakeUp )
{
pVPhysics->Wake();
}
return true;
}
// UNDONE: Move/rename this function
static CBaseEntity *CreateSimplePhysicsObject( CBaseEntity *pEntity, bool createAsleep, bool createAsDebris )
{
CBaseEntity *pPhysEntity = NULL;
int modelindex = pEntity->GetModelIndex();
const model_t *model = modelinfo->GetModel( modelindex );
if ( model && modelinfo->GetModelType(model) == mod_brush )
{
pPhysEntity = CreateEntityByName( "simple_physics_brush" );
}
else
{
pPhysEntity = CreateEntityByName( "simple_physics_prop" );
}
pPhysEntity->KeyValue( "model", STRING(pEntity->GetModelName()) );
pPhysEntity->SetAbsOrigin( pEntity->GetAbsOrigin() );
pPhysEntity->SetAbsAngles( pEntity->GetAbsAngles() );
pPhysEntity->Spawn();
if ( !TransferPhysicsObject( pEntity, pPhysEntity, !createAsleep ) )
{
pPhysEntity->VPhysicsInitNormal( SOLID_VPHYSICS, 0, createAsleep );
if ( createAsDebris )
pPhysEntity->SetCollisionGroup( COLLISION_GROUP_DEBRIS );
}
return pPhysEntity;
}
#define SF_CONVERT_ASLEEP 0x0001
#define SF_CONVERT_AS_DEBRIS 0x0002
class CPhysConvert : public CLogicalEntity
{
DECLARE_CLASS( CPhysConvert, CLogicalEntity );
public:
CPhysConvert( void ) : m_flMassOverride( 0.0f ) {};
COutputEvent m_OnConvert;
// Input handlers
void InputConvertTarget( inputdata_t &inputdata );
DECLARE_DATADESC();
private:
string_t m_swapModel;
float m_flMassOverride;
};
LINK_ENTITY_TO_CLASS( phys_convert, CPhysConvert );
BEGIN_DATADESC( CPhysConvert )
DEFINE_KEYFIELD( m_swapModel, FIELD_STRING, "swapmodel" ),
DEFINE_KEYFIELD( m_flMassOverride, FIELD_FLOAT, "massoverride" ),
// Inputs
DEFINE_INPUTFUNC( FIELD_VOID, "ConvertTarget", InputConvertTarget ),
// Outputs
DEFINE_OUTPUT( m_OnConvert, "OnConvert"),
END_DATADESC()
//-----------------------------------------------------------------------------
// Purpose: Input handler that converts our target to a physics object.
//-----------------------------------------------------------------------------
void CPhysConvert::InputConvertTarget( inputdata_t &inputdata )
{
bool createAsleep = HasSpawnFlags(SF_CONVERT_ASLEEP);
bool createAsDebris = HasSpawnFlags(SF_CONVERT_AS_DEBRIS);
// Fire output
m_OnConvert.FireOutput( inputdata.pActivator, this );
CBaseEntity *entlist[512];
CBaseEntity *pSwap = gEntList.FindEntityByName( NULL, m_swapModel, NULL, inputdata.pActivator, inputdata.pCaller );
CBaseEntity *pEntity = NULL;
int count = 0;
while ( (pEntity = gEntList.FindEntityByName( pEntity, m_target, NULL, inputdata.pActivator, inputdata.pCaller )) != NULL )
{
entlist[count++] = pEntity;
if ( count >= ARRAYSIZE(entlist) )
break;
}
// if we're swapping to model out, don't loop over more than one object
// multiple objects with the same brush model will render, but the dynamic lights
// and decals will be shared between the two instances...
if ( pSwap && count > 0 )
{
count = 1;
}
for ( int i = 0; i < count; i++ )
{
pEntity = entlist[i];
// don't convert something that is already physics based
if ( pEntity->GetMoveType() == MOVETYPE_VPHYSICS )
{
Msg( "ERROR phys_convert %s ! Already MOVETYPE_VPHYSICS\n", STRING(pEntity->m_iClassname) );
continue;
}
UnlinkFromParent( pEntity );
if ( pSwap )
{
// we can't reuse this physics object, so kill it
pEntity->VPhysicsDestroyObject();
pEntity->SetModel( STRING(pSwap->GetModelName()) );
}
// created phys object, now move hierarchy over
CBaseEntity *pPhys = CreateSimplePhysicsObject( pEntity, createAsleep, createAsDebris );
if ( pPhys )
{
// Override the mass if specified
if ( m_flMassOverride > 0 )
{
IPhysicsObject *pPhysObj = pPhys->VPhysicsGetObject();
if ( pPhysObj )
{
pPhysObj->SetMass( m_flMassOverride );
}
}
pPhys->SetName( pEntity->GetEntityName() );
UTIL_TransferPoseParameters( pEntity, pPhys );
TransferChildren( pEntity, pPhys );
pEntity->AddSolidFlags( FSOLID_NOT_SOLID );
pEntity->AddEffects( EF_NODRAW );
UTIL_Remove( pEntity );
}
}
}
//============================================================================================================
// PHYS MAGNET
//============================================================================================================
#define SF_MAGNET_ASLEEP 0x0001
#define SF_MAGNET_MOTIONDISABLED 0x0002
#define SF_MAGNET_SUCK 0x0004
#define SF_MAGNET_ALLOWROTATION 0x0008
#define SF_MAGNET_COAST_HACK 0x0010
LINK_ENTITY_TO_CLASS( phys_magnet, CPhysMagnet );
// BUGBUG: This won't work! Right now you can't save physics pointers inside an embedded type!
BEGIN_SIMPLE_DATADESC( magnetted_objects_t )
DEFINE_PHYSPTR( pConstraint ),
DEFINE_FIELD( hEntity, FIELD_EHANDLE ),
END_DATADESC()
BEGIN_DATADESC( CPhysMagnet )
// Outputs
DEFINE_OUTPUT( m_OnMagnetAttach, "OnAttach" ),
DEFINE_OUTPUT( m_OnMagnetDetach, "OnDetach" ),
// Keys
DEFINE_KEYFIELD( m_massScale, FIELD_FLOAT, "massScale" ),
DEFINE_KEYFIELD( m_iszOverrideScript, FIELD_STRING, "overridescript" ),
DEFINE_KEYFIELD( m_iMaxObjectsAttached, FIELD_INTEGER, "maxobjects" ),
DEFINE_KEYFIELD( m_forceLimit, FIELD_FLOAT, "forcelimit" ),
DEFINE_KEYFIELD( m_torqueLimit, FIELD_FLOAT, "torquelimit" ),
DEFINE_UTLVECTOR( m_MagnettedEntities, FIELD_EMBEDDED ),
DEFINE_PHYSPTR( m_pConstraintGroup ),
DEFINE_FIELD( m_bActive, FIELD_BOOLEAN ),
DEFINE_FIELD( m_bHasHitSomething, FIELD_BOOLEAN ),
DEFINE_FIELD( m_flTotalMass, FIELD_FLOAT ),
DEFINE_FIELD( m_flRadius, FIELD_FLOAT ),
DEFINE_FIELD( m_flNextSuckTime, FIELD_FLOAT ),
// Inputs
DEFINE_INPUTFUNC( FIELD_VOID, "Toggle", InputToggle ),
DEFINE_INPUTFUNC( FIELD_VOID, "TurnOn", InputTurnOn ),
DEFINE_INPUTFUNC( FIELD_VOID, "TurnOff", InputTurnOff ),
END_DATADESC()
//-----------------------------------------------------------------------------
// Purpose: SendProxy that converts the magnet's attached object UtlVector to entindexes
//-----------------------------------------------------------------------------
void SendProxy_MagnetAttachedObjectList( const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID )
{
CPhysMagnet *pMagnet = (CPhysMagnet*)pData;
// If this assertion fails, then SendProxyArrayLength_MagnetAttachedArray must have failed.
Assert( iElement < pMagnet->GetNumAttachedObjects() );
pOut->m_Int = pMagnet->GetAttachedObject(iElement)->entindex();
}
int SendProxyArrayLength_MagnetAttachedArray( const void *pStruct, int objectID )
{
CPhysMagnet *pMagnet = (CPhysMagnet*)pStruct;
return pMagnet->GetNumAttachedObjects();
}
IMPLEMENT_SERVERCLASS_ST( CPhysMagnet, DT_PhysMagnet )
// ROBIN: Disabled because we don't need it anymore
/*
SendPropArray2(
SendProxyArrayLength_MagnetAttachedArray,
SendPropInt("magnetattached_array_element", 0, 4, 10, SPROP_UNSIGNED, SendProxy_MagnetAttachedObjectList),
128,
0,
"magnetattached_array"
)
*/
END_SEND_TABLE()
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CPhysMagnet::CPhysMagnet( void )
{
m_forceLimit = 0;
m_torqueLimit = 0;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CPhysMagnet::~CPhysMagnet( void )
{
DetachAll();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::Spawn( void )
{
Precache();
SetMoveType( MOVETYPE_NONE );
SetSolid( SOLID_VPHYSICS );
SetModel( STRING( GetModelName() ) );
m_takedamage = DAMAGE_EVENTS_ONLY;
solid_t tmpSolid;
PhysModelParseSolid( tmpSolid, this, GetModelIndex() );
if ( m_massScale > 0 )
{
tmpSolid.params.mass *= m_massScale;
}
PhysSolidOverride( tmpSolid, m_iszOverrideScript );
VPhysicsInitNormal( GetSolid(), GetSolidFlags(), true, &tmpSolid );
// Wake it up if not asleep
if ( !HasSpawnFlags(SF_MAGNET_ASLEEP) )
{
VPhysicsGetObject()->Wake();
}
if ( HasSpawnFlags(SF_MAGNET_MOTIONDISABLED) )
{
VPhysicsGetObject()->EnableMotion( false );
}
m_bActive = true;
m_pConstraintGroup = NULL;
m_flTotalMass = 0;
m_flNextSuckTime = 0;
BaseClass::Spawn();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::Precache( void )
{
PrecacheModel( STRING( GetModelName() ) );
BaseClass::Precache();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::Touch( CBaseEntity *pOther )
{
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::VPhysicsCollision( int index, gamevcollisionevent_t *pEvent )
{
int otherIndex = !index;
CBaseEntity *pOther = pEvent->pEntities[otherIndex];
// Ignore triggers
if ( pOther->IsSolidFlagSet( FSOLID_NOT_SOLID ) )
return;
m_bHasHitSomething = true;
DoMagnetSuck( pEvent->pEntities[!index] );
// Don't pickup if we're not active
if ( !m_bActive )
return;
// Hit our maximum?
if ( m_iMaxObjectsAttached && m_iMaxObjectsAttached <= GetNumAttachedObjects() )
return;
// This is a hack to solve players (Erik) stacking stuff on their jeeps in coast_01
// and being screwed when the crane can't pick them up. We need to get rid of the object.
if ( HasSpawnFlags( SF_MAGNET_COAST_HACK ) )
{
// If the other isn't the jeep, we need to get rid of it
if ( !FClassnameIs( pOther, "prop_vehicle_jeep" ) )
{
// If it takes damage, destroy it
if ( pOther->m_takedamage != DAMAGE_NO && pOther->m_takedamage != DAMAGE_EVENTS_ONLY )
{
CTakeDamageInfo info( this, this, pOther->GetHealth(), DMG_GENERIC | DMG_PREVENT_PHYSICS_FORCE );
pOther->TakeDamage( info );
}
else if ( pEvent->pObjects[ otherIndex ]->IsMoveable() )
{
// Otherwise, we're screwed, so just remove it
UTIL_Remove( pOther );
}
else
{
Warning( "CPhysMagnet %s:%d blocking magnet\n",
pOther->GetClassname(), pOther->entindex() );
}
return;
}
}
// Make sure it's made of metal
const surfacedata_t *phit = physprops->GetSurfaceData( pEvent->surfaceProps[otherIndex] );
char cTexType = phit->game.material;
if ( cTexType != CHAR_TEX_METAL && cTexType != CHAR_TEX_COMPUTER )
{
// If we don't have a model, we're done. The texture we hit wasn't metal.
if ( !pOther->GetBaseAnimating() )
return;
// If we have a model that wants to be metal, even though we hit a non-metal texture, we'll stick to it
if ( Q_strncmp( Studio_GetDefaultSurfaceProps( pOther->GetBaseAnimating()->GetModelPtr() ), "metal", 5 ) )
return;
}
IPhysicsObject *pPhysics = pOther->VPhysicsGetObject();
if ( pPhysics && pOther->GetMoveType() == MOVETYPE_VPHYSICS && pPhysics->IsMoveable() )
{
// Make sure we haven't already got this sucker on the magnet
int iCount = m_MagnettedEntities.Count();
for ( int i = 0; i < iCount; i++ )
{
if ( m_MagnettedEntities[i].hEntity == pOther )
return;
}
// We want to cast a long way to ensure our shadow shows up
pOther->SetShadowCastDistance( 2048 );
// Create a constraint between the magnet and this sucker
IPhysicsObject *pMagnetPhysObject = VPhysicsGetObject();
Assert( pMagnetPhysObject );
magnetted_objects_t newEntityOnMagnet;
newEntityOnMagnet.hEntity = pOther;
// Use the right constraint
if ( HasSpawnFlags( SF_MAGNET_ALLOWROTATION ) )
{
constraint_ballsocketparams_t ballsocket;
ballsocket.Defaults();
ballsocket.constraint.Defaults();
ballsocket.constraint.forceLimit = lbs2kg(m_forceLimit);
ballsocket.constraint.torqueLimit = lbs2kg(m_torqueLimit);
Vector vecCollisionPoint;
pEvent->pInternalData->GetContactPoint( vecCollisionPoint );
pMagnetPhysObject->WorldToLocal( &ballsocket.constraintPosition[0], vecCollisionPoint );
pPhysics->WorldToLocal( &ballsocket.constraintPosition[1], vecCollisionPoint );
//newEntityOnMagnet.pConstraint = physenv->CreateBallsocketConstraint( pMagnetPhysObject, pPhysics, m_pConstraintGroup, ballsocket );
newEntityOnMagnet.pConstraint = physenv->CreateBallsocketConstraint( pMagnetPhysObject, pPhysics, NULL, ballsocket );
}
else
{
constraint_fixedparams_t fixed;
fixed.Defaults();
fixed.InitWithCurrentObjectState( pMagnetPhysObject, pPhysics );
fixed.constraint.Defaults();
fixed.constraint.forceLimit = lbs2kg(m_forceLimit);
fixed.constraint.torqueLimit = lbs2kg(m_torqueLimit);
// FIXME: Use the magnet's constraint group.
//newEntityOnMagnet.pConstraint = physenv->CreateFixedConstraint( pMagnetPhysObject, pPhysics, m_pConstraintGroup, fixed );
newEntityOnMagnet.pConstraint = physenv->CreateFixedConstraint( pMagnetPhysObject, pPhysics, NULL, fixed );
}
newEntityOnMagnet.pConstraint->SetGameData( (void *) this );
m_MagnettedEntities.AddToTail( newEntityOnMagnet );
m_flTotalMass += pPhysics->GetMass();
}
DoMagnetSuck( pOther );
m_OnMagnetAttach.FireOutput( this, this );
BaseClass::VPhysicsCollision( index, pEvent );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::DoMagnetSuck( CBaseEntity *pOther )
{
if ( !HasSpawnFlags( SF_MAGNET_SUCK ) )
return;
if ( !m_bActive )
return;
// Don't repeatedly suck
if ( m_flNextSuckTime > gpGlobals->curtime )
return;
// Look for physics objects underneath the magnet and suck them onto it
Vector vecCheckPos, vecSuckPoint;
VectorTransform( Vector(0,0,-96), EntityToWorldTransform(), vecCheckPos );
VectorTransform( Vector(0,0,-64), EntityToWorldTransform(), vecSuckPoint );
CBaseEntity *pEntities[20];
int iNumEntities = UTIL_EntitiesInSphere( pEntities, 20, vecCheckPos, 80.0, 0 );
for ( int i = 0; i < iNumEntities; i++ )
{
CBaseEntity *pEntity = pEntities[i];
if ( !pEntity || pEntity == pOther )
continue;
IPhysicsObject *pPhys = pEntity->VPhysicsGetObject();
if ( pPhys && pEntity->GetMoveType() == MOVETYPE_VPHYSICS && pPhys->GetMass() < 5000 )
{
// Do we have line of sight to it?
trace_t tr;
UTIL_TraceLine( GetAbsOrigin(), pEntity->GetAbsOrigin(), MASK_SHOT, this, 0, &tr );
if ( tr.fraction == 1.0 || tr.m_pEnt == pEntity )
{
// Pull it towards the magnet
Vector vecVelocity = (vecSuckPoint - pEntity->GetAbsOrigin());
VectorNormalize(vecVelocity);
vecVelocity *= 5 * pPhys->GetMass();
pPhys->AddVelocity( &vecVelocity, NULL );
}
}
}
m_flNextSuckTime = gpGlobals->curtime + 2.0;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::SetConstraintGroup( IPhysicsConstraintGroup *pGroup )
{
m_pConstraintGroup = pGroup;
}
//-----------------------------------------------------------------------------
// Purpose: Make the magnet active
//-----------------------------------------------------------------------------
void CPhysMagnet::InputTurnOn( inputdata_t &inputdata )
{
m_bActive = true;
}
//-----------------------------------------------------------------------------
// Purpose: Make the magnet inactive. Drop everything it's got hooked on.
//-----------------------------------------------------------------------------
void CPhysMagnet::InputTurnOff( inputdata_t &inputdata )
{
m_bActive = false;
DetachAll();
}
//-----------------------------------------------------------------------------
// Purpose: Toggle the magnet's active state
//-----------------------------------------------------------------------------
void CPhysMagnet::InputToggle( inputdata_t &inputdata )
{
if ( m_bActive )
{
InputTurnOff( inputdata );
}
else
{
InputTurnOn( inputdata );
}
}
//-----------------------------------------------------------------------------
// Purpose: One of our magnet constraints broke
//-----------------------------------------------------------------------------
void CPhysMagnet::ConstraintBroken( IPhysicsConstraint *pConstraint )
{
// Find the entity that was constrained and release it
int iCount = m_MagnettedEntities.Count();
for ( int i = 0; i < iCount; i++ )
{
if ( m_MagnettedEntities[i].hEntity.Get() != NULL && m_MagnettedEntities[i].pConstraint == pConstraint )
{
IPhysicsObject *pPhysObject = m_MagnettedEntities[i].hEntity->VPhysicsGetObject();
if( pPhysObject != NULL )
{
m_flTotalMass -= pPhysObject->GetMass();
}
m_MagnettedEntities.Remove(i);
break;
}
}
m_OnMagnetDetach.FireOutput( this, this );
physenv->DestroyConstraint( pConstraint );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPhysMagnet::DetachAll( void )
{
// Make sure we haven't already got this sucker on the magnet
int iCount = m_MagnettedEntities.Count();
for ( int i = 0; i < iCount; i++ )
{
// Delay a couple seconds to reset to the default shadow cast behavior
if ( m_MagnettedEntities[i].hEntity )
{
m_MagnettedEntities[i].hEntity->SetShadowCastDistance( 0, 2.0f );
}
physenv->DestroyConstraint( m_MagnettedEntities[i].pConstraint );
}
m_MagnettedEntities.Purge();
m_flTotalMass = 0;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CPhysMagnet::GetNumAttachedObjects( void )
{
return m_MagnettedEntities.Count();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
float CPhysMagnet::GetTotalMassAttachedObjects( void )
{
return m_flTotalMass;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CBaseEntity *CPhysMagnet::GetAttachedObject( int iIndex )
{
Assert( iIndex < GetNumAttachedObjects() );
return m_MagnettedEntities[iIndex].hEntity;
}
class CInfoMassCenter : public CPointEntity
{
DECLARE_CLASS( CInfoMassCenter, CPointEntity );
public:
void Spawn( void )
{
if ( m_target != NULL_STRING )
{
masscenteroverride_t params;
params.SnapToPoint( m_target, GetAbsOrigin() );
PhysSetMassCenterOverride( params );
UTIL_Remove( this );
}
}
};
LINK_ENTITY_TO_CLASS( info_mass_center, CInfoMassCenter );
// =============================================================
// point_push
// =============================================================
class CPointPush : public CPointEntity
{
public:
DECLARE_CLASS( CPointPush, CPointEntity );
virtual void Activate( void );
void PushThink( void );
void InputEnable( inputdata_t &inputdata );
void InputDisable( inputdata_t &inputdata );
DECLARE_DATADESC();
private:
inline void PushEntity( CBaseEntity *pTarget );
bool m_bEnabled;
float m_flMagnitude;
float m_flRadius;
float m_flInnerRadius; // Inner radius where the push eminates from (on a sphere)
};
LINK_ENTITY_TO_CLASS( point_push, CPointPush );
BEGIN_DATADESC( CPointPush )
DEFINE_THINKFUNC( PushThink ),
DEFINE_KEYFIELD( m_bEnabled, FIELD_BOOLEAN, "enabled" ),
DEFINE_KEYFIELD( m_flMagnitude, FIELD_FLOAT, "magnitude" ),
DEFINE_KEYFIELD( m_flRadius, FIELD_FLOAT, "radius" ),
DEFINE_KEYFIELD( m_flInnerRadius,FIELD_FLOAT, "inner_radius" ),
DEFINE_INPUTFUNC( FIELD_VOID, "Enable", InputEnable ),
DEFINE_INPUTFUNC( FIELD_VOID, "Disable", InputDisable ),
END_DATADESC();
// Spawnflags
#define SF_PUSH_TEST_LOS 0x0001
#define SF_PUSH_DIRECTIONAL 0x0002
#define SF_PUSH_NO_FALLOFF 0x0004
#define SF_PUSH_PLAYER 0x0008
#define SF_PUSH_PHYSICS 0x0010
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPointPush::Activate( void )
{
if ( m_bEnabled )
{
SetThink( &CPointPush::PushThink );
SetNextThink( gpGlobals->curtime + 0.05f );
}
BaseClass::Activate();
}
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pTarget -
//-----------------------------------------------------------------------------
void CPointPush::PushEntity( CBaseEntity *pTarget )
{
Vector vecPushDir;
if ( HasSpawnFlags( SF_PUSH_DIRECTIONAL ) )
{
GetVectors( &vecPushDir, NULL, NULL );
}
else
{
vecPushDir = ( pTarget->BodyTarget( GetAbsOrigin(), false ) - GetAbsOrigin() );
}
float dist = VectorNormalize( vecPushDir );
float flFalloff = ( HasSpawnFlags( SF_PUSH_NO_FALLOFF ) ) ? 1.0f : RemapValClamped( dist, m_flRadius, m_flRadius*0.25f, 0.0f, 1.0f );
switch( pTarget->GetMoveType() )
{
case MOVETYPE_NONE:
case MOVETYPE_PUSH:
case MOVETYPE_NOCLIP:
break;
case MOVETYPE_VPHYSICS:
{
IPhysicsObject *pPhys = pTarget->VPhysicsGetObject();
if ( pPhys )
{
// UNDONE: Assume the velocity is for a 100kg object, scale with mass
pPhys->ApplyForceCenter( m_flMagnitude * flFalloff * 100.0f * vecPushDir * pPhys->GetMass() * gpGlobals->frametime );
return;
}
}
break;
case MOVETYPE_STEP:
{
// NPCs cannot be lifted up properly, they need to move in 2D
vecPushDir.z = 0.0f;
// NOTE: Falls through!
}
default:
{
Vector vecPush = (m_flMagnitude * vecPushDir * flFalloff);
if ( pTarget->GetFlags() & FL_BASEVELOCITY )
{
vecPush = vecPush + pTarget->GetBaseVelocity();
}
if ( vecPush.z > 0 && (pTarget->GetFlags() & FL_ONGROUND) )
{
pTarget->SetGroundEntity( NULL );
Vector origin = pTarget->GetAbsOrigin();
origin.z += 1.0f;
pTarget->SetAbsOrigin( origin );
}
pTarget->SetBaseVelocity( vecPush );
pTarget->AddFlag( FL_BASEVELOCITY );
}
break;
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPointPush::PushThink( void )
{
// Get a collection of entities in a radius around us
CBaseEntity *pEnts[256];
int numEnts = UTIL_EntitiesInSphere( pEnts, 256, GetAbsOrigin(), m_flRadius, 0 );
for ( int i = 0; i < numEnts; i++ )
{
// Must be solid
if ( pEnts[i]->IsSolid() == false )
continue;
// Cannot be parented (only push parents)
if ( pEnts[i]->GetMoveParent() != NULL )
continue;
// Must be moveable
if ( pEnts[i]->GetMoveType() != MOVETYPE_VPHYSICS &&
pEnts[i]->GetMoveType() != MOVETYPE_WALK &&
pEnts[i]->GetMoveType() != MOVETYPE_STEP )
continue;
// If we don't want to push players, don't
if ( pEnts[i]->IsPlayer() && HasSpawnFlags( SF_PUSH_PLAYER ) == false )
continue;
// If we don't want to push physics, don't
if ( pEnts[i]->GetMoveType() == MOVETYPE_VPHYSICS && HasSpawnFlags( SF_PUSH_PHYSICS ) == false )
continue;
// Test for LOS if asked to
if ( HasSpawnFlags( SF_PUSH_TEST_LOS ) )
{
Vector vecStartPos = GetAbsOrigin();
Vector vecEndPos = pEnts[i]->BodyTarget( vecStartPos, false );
if ( m_flInnerRadius != 0.0f )
{
// Find a point on our inner radius sphere to begin from
Vector vecDirToTarget = ( vecEndPos - vecStartPos );
VectorNormalize( vecDirToTarget );
vecStartPos = GetAbsOrigin() + ( vecDirToTarget * m_flInnerRadius );
}
trace_t tr;
UTIL_TraceLine( vecStartPos,
pEnts[i]->BodyTarget( vecStartPos, false ),
MASK_SOLID_BRUSHONLY,
this,
COLLISION_GROUP_NONE,
&tr );
// Shielded
if ( tr.fraction < 1.0f && tr.m_pEnt != pEnts[i] )
continue;
}
// Push it along
PushEntity( pEnts[i] );
}
// Set us up for the next think
SetNextThink( gpGlobals->curtime + 0.05f );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPointPush::InputEnable( inputdata_t &inputdata )
{
m_bEnabled = true;
SetThink( &CPointPush::PushThink );
SetNextThink( gpGlobals->curtime + 0.05f );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CPointPush::InputDisable( inputdata_t &inputdata )
{
m_bEnabled = false;
SetThink( NULL );
SetNextThink( gpGlobals->curtime );
}