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303 lines
6.7 KiB
303 lines
6.7 KiB
![]()
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//=============================================================================//
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#include "cbase.h"
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#include "tf_walker_base.h"
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#include "in_buttons.h"
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#include "shake.h"
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static float MAX_WALKER_VEL = 100;
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IMPLEMENT_SERVERCLASS_ST( CWalkerBase, DT_WalkerBase )
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END_SEND_TABLE()
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CWalkerBase::CWalkerBase()
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{
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m_vSteerVelocity.Init();
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m_iMovePoseParamX = -1;
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m_iMovePoseParamY = -1;
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m_bWalkMode = false;
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m_flDontMakeSoundsUntil = 0;
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m_flPlaybackSpeedBoost = 1;
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m_flVelocityDecayRate = 80;
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m_LastButtons = 0;
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m_vLastCmdViewAngles.Init();
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}
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void CWalkerBase::SpawnWalker(
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const char *pModelName,
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int objectType,
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const Vector &vPlacementMins,
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const Vector &vPlacementMaxs,
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int iHealth,
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int nMaxPassengers,
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float flPlaybackSpeedBoost
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)
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{
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SetModel( pModelName );
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SetType( objectType );
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UTIL_SetSize( this, vPlacementMins, vPlacementMaxs );
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m_iHealth = iHealth;
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m_flPlaybackSpeedBoost = flPlaybackSpeedBoost;
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m_takedamage = DAMAGE_YES;
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SetMaxPassengerCount( nMaxPassengers );
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// The model should be set before the derived class calls our Spawn().
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Assert( GetModel() );
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// By default, all walkers use the walk_box animation as they move.
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m_iMovePoseParamX = LookupPoseParameter( "move_x" );
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m_iMovePoseParamY = LookupPoseParameter( "move_y" );
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EnableWalkMode( true );
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// The base class spawn sets a default collision group, so this needs to
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// be called post.
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SetCollisionGroup( COLLISION_GROUP_VEHICLE );
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BaseClass::Spawn();
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// HACKHACK: this is just so CBaseObject doesn't call StudioFrameAdvance for us. We should probably have
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// a specific flag for this behavior.
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m_fObjectFlags |= OF_DOESNT_HAVE_A_MODEL;
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m_fObjectFlags &= ~OF_MUST_BE_BUILT_ON_ATTACHMENT;
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// We animate, so let's not use manual mode for now.
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SetMoveType( MOVETYPE_STEP );
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AddSolidFlags( FSOLID_CUSTOMRAYTEST | FSOLID_CUSTOMBOXTEST );
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EnableServerIK();
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SetContextThink( WalkerThink, gpGlobals->curtime, "WalkerThink" );
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}
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void CWalkerBase::EnableWalkMode( bool bEnable )
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{
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m_bWalkMode = bEnable;
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// Stop any movement..
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m_vSteerVelocity.Init();
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if ( bEnable )
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{
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ResetSequence( LookupSequence( "walk_box" ) );
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// HACK: there should be a better way to this.. like CBaseAnimating::ResetAnimation,
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// or ResetSequence should do it.
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SetCycle( 0 );
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}
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}
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void CWalkerBase::AdjustInitialBuildAngles()
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{
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QAngle vNewAngles = GetAbsAngles();
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vNewAngles[YAW] += 90;
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SetAbsAngles( vNewAngles );
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}
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void CWalkerBase::WalkerThink()
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{
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float dt = GetTimeDelta();
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// Decay our velocity.
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if ( m_bWalkMode )
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{
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m_flPlaybackRate = m_flPlaybackSpeedBoost;
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float flDecayRate = m_flVelocityDecayRate;
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float flLen = m_vSteerVelocity.Length();
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Vector2DNormalize( m_vSteerVelocity );
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float flDecayAmt = flDecayRate * dt;
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flLen = MAX( 0, flLen - flDecayAmt );
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m_vSteerVelocity *= flLen;
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// Setup our pose parameters.
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SetPoseParameter( m_iMovePoseParamX, RemapVal( m_vSteerVelocity.x, -MAX_WALKER_VEL, MAX_WALKER_VEL, -1, 1 ) );
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SetPoseParameter( m_iMovePoseParamY, RemapVal( m_vSteerVelocity.y, -MAX_WALKER_VEL, MAX_WALKER_VEL, -1, 1 ) );
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// Use an idle animation if they're not moving.
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int iWantedSequence = LookupSequence( "walk_box" );
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if ( m_vSteerVelocity.x == 0 && m_vSteerVelocity.y == 0 )
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{
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iWantedSequence = LookupSequence( "idle" );
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// HACK: HL2 Strider has no idle
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if ( iWantedSequence == -1 )
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iWantedSequence = LookupSequence( "ragdoll" );
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}
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if ( iWantedSequence != -1 && GetSequence() != iWantedSequence )
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ResetSequence( iWantedSequence );
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}
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// Now ask the model how far it thought it moved based on the animation.
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// Turns out the animation thinks it's moving just a tiny bit, even when we're centered on the idle animation,
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// so we just force it not to move here if we know we're not supposed to move.
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if ( m_vSteerVelocity.Length() > 0 )
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{
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Vector vNewPos = GetWalkerLocalMovement();
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SetLocalOrigin( vNewPos );
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}
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// Hard-coded for now. These should come from the vehicle's script eventually.
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// Now slowly rotate towards the player's eye angles.
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CBasePlayer *pPlayer = GetPassenger( VEHICLE_ROLE_DRIVER );
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if ( pPlayer )
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{
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static float flAccelRate = 180;
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static float flRotateRate = 60;
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// Figure out a force to apply to our current velocity.
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Vector2D vAccel( 0, 0 );
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if ( m_LastButtons & IN_FORWARD )
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vAccel.x += flAccelRate;
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if ( m_LastButtons & IN_BACK )
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vAccel.x -= flAccelRate;
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if ( m_LastButtons & IN_MOVELEFT )
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vAccel.y -= flAccelRate;
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if ( m_LastButtons & IN_MOVERIGHT )
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vAccel.y += flAccelRate;
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m_vSteerVelocity += vAccel * dt;
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m_vSteerVelocity.x = clamp( m_vSteerVelocity.x, -MAX_WALKER_VEL, MAX_WALKER_VEL );
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m_vSteerVelocity.y = clamp( m_vSteerVelocity.y, -MAX_WALKER_VEL, MAX_WALKER_VEL );
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float wantedYaw = m_vLastCmdViewAngles[YAW];
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QAngle curAngles = GetAbsAngles();
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curAngles[YAW] = ApproachAngle( wantedYaw, curAngles[YAW], flRotateRate * dt );
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SetAbsAngles( curAngles );
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}
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DispatchAnimEvents( this );
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// Get another think.
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SetContextThink( WalkerThink, gpGlobals->curtime + dt, "WalkerThink" );
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}
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Vector CWalkerBase::GetWalkerLocalMovement()
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{
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bool bIgnored;
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Vector vNewPos;
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QAngle vNewAngles;
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GetIntervalMovement( GetAnimTimeInterval(), bIgnored, vNewPos, vNewAngles );
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return vNewPos;
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}
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const Vector2D& CWalkerBase::GetSteerVelocity() const
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{
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return m_vSteerVelocity;
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}
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void CWalkerBase::Spawn()
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{
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// Derived classes should call SpawnWalker instead of chaining down to CWalkerBase::Spawn().
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Assert( false );
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}
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void CWalkerBase::Activate()
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{
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WalkerActivate();
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BaseClass::Activate();
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}
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void CWalkerBase::WalkerActivate( void )
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{
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// Until we're finished building, turn off vphysics-based motion
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SetSolid( SOLID_VPHYSICS );
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VPhysicsInitStatic();
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SetPoseParameter( m_iMovePoseParamX, 0 );
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SetPoseParameter( m_iMovePoseParamY, 0 );
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}
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void CWalkerBase::SetVelocityDecayRate( float flDecayRate )
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{
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m_flVelocityDecayRate = flDecayRate;
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}
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float CWalkerBase::GetTimeDelta() const
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{
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return 0.1;
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}
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void CWalkerBase::SetupMove( CBasePlayer *pPlayer, CUserCmd *ucmd, IMoveHelper *pHelper, CMoveData *move )
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{
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// This calls StudioFrameAdvance for us.
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//BaseClass::SetupMove( pPlayer, ucmd, pHelper, move );
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// Lose control when the player dies
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if ( pPlayer->IsAlive() == false )
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{
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m_LastButtons = 0;
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return;
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}
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// Only the driver gets to drive.
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int nRole = GetPassengerRole( pPlayer );
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if ( nRole != VEHICLE_ROLE_DRIVER )
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return;
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m_LastButtons = ucmd->buttons;
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m_vLastCmdViewAngles = ucmd->viewangles;
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}
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bool CWalkerBase::IsPassengerVisible( int nRole )
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{
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return true;
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}
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bool CWalkerBase::StartBuilding( CBaseEntity *pBuilder )
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{
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if ( !BaseClass::StartBuilding( pBuilder ) )
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return false;
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WalkerActivate();
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return true;
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}
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