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-rw-r--r--src/cgame/cg_particles.c2599
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diff --git a/src/cgame/cg_particles.c b/src/cgame/cg_particles.c
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+/*
+===========================================================================
+Copyright (C) 2000-2009 Darklegion Development
+
+This file is part of Tremulous.
+
+Tremulous is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Tremulous is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Tremulous; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+// cg_particles.c -- the particle system
+
+
+#include "cg_local.h"
+
+static baseParticleSystem_t baseParticleSystems[ MAX_BASEPARTICLE_SYSTEMS ];
+static baseParticleEjector_t baseParticleEjectors[ MAX_BASEPARTICLE_EJECTORS ];
+static baseParticle_t baseParticles[ MAX_BASEPARTICLES ];
+static int numBaseParticleSystems = 0;
+static int numBaseParticleEjectors = 0;
+static int numBaseParticles = 0;
+
+static particleSystem_t particleSystems[ MAX_PARTICLE_SYSTEMS ];
+static particleEjector_t particleEjectors[ MAX_PARTICLE_EJECTORS ];
+static particle_t particles[ MAX_PARTICLES ];
+static particle_t *sortedParticles[ MAX_PARTICLES ];
+static particle_t *radixBuffer[ MAX_PARTICLES ];
+
+/*
+===============
+CG_LerpValues
+
+Lerp between two values
+===============
+*/
+static float CG_LerpValues( float a, float b, float f )
+{
+ if( b == PARTICLES_SAME_AS_INITIAL )
+ return a;
+ else
+ return ( (a) + (f) * ( (b) - (a) ) );
+}
+
+/*
+===============
+CG_RandomiseValue
+
+Randomise some value by some variance
+===============
+*/
+static float CG_RandomiseValue( float value, float variance )
+{
+ if( value != 0.0f )
+ return value * ( 1.0f + ( random( ) * variance ) );
+ else
+ return random( ) * variance;
+}
+
+/*
+===============
+CG_SpreadVector
+
+Randomly spread a vector by some amount
+===============
+*/
+static void CG_SpreadVector( vec3_t v, float spread )
+{
+ vec3_t p, r1, r2;
+ float randomSpread = crandom( ) * spread;
+ float randomRotation = random( ) * 360.0f;
+
+ PerpendicularVector( p, v );
+
+ RotatePointAroundVector( r1, p, v, randomSpread );
+ RotatePointAroundVector( r2, v, r1, randomRotation );
+
+ VectorCopy( r2, v );
+}
+
+/*
+===============
+CG_DestroyParticle
+
+Destroy an individual particle
+===============
+*/
+static void CG_DestroyParticle( particle_t *p, vec3_t impactNormal )
+{
+ //this particle has an onDeath particle system attached
+ if( p->class->onDeathSystemName[ 0 ] != '\0' )
+ {
+ particleSystem_t *ps;
+
+ ps = CG_SpawnNewParticleSystem( p->class->onDeathSystemHandle );
+
+ if( CG_IsParticleSystemValid( &ps ) )
+ {
+ if( impactNormal )
+ CG_SetParticleSystemNormal( ps, impactNormal );
+
+ CG_SetAttachmentPoint( &ps->attachment, p->origin );
+ CG_AttachToPoint( &ps->attachment );
+ }
+ }
+
+ p->valid = qfalse;
+
+ //this gives other systems a couple of
+ //frames to realise the particle is gone
+ p->frameWhenInvalidated = cg.clientFrame;
+}
+
+/*
+===============
+CG_SpawnNewParticle
+
+Introduce a new particle into the world
+===============
+*/
+static particle_t *CG_SpawnNewParticle( baseParticle_t *bp, particleEjector_t *parent )
+{
+ int i, j;
+ particle_t *p = NULL;
+ particleEjector_t *pe = parent;
+ particleSystem_t *ps = parent->parent;
+ vec3_t attachmentPoint, attachmentVelocity;
+ vec3_t transform[ 3 ];
+
+ for( i = 0; i < MAX_PARTICLES; i++ )
+ {
+ p = &particles[ i ];
+
+ //FIXME: the + 1 may be unnecessary
+ if( !p->valid && cg.clientFrame > p->frameWhenInvalidated + 1 )
+ {
+ memset( p, 0, sizeof( particle_t ) );
+
+ //found a free slot
+ p->class = bp;
+ p->parent = pe;
+
+ p->birthTime = cg.time;
+ p->lifeTime = (int)CG_RandomiseValue( (float)bp->lifeTime, bp->lifeTimeRandFrac );
+
+ p->radius.delay = (int)CG_RandomiseValue( (float)bp->radius.delay, bp->radius.delayRandFrac );
+ p->radius.initial = CG_RandomiseValue( bp->radius.initial, bp->radius.initialRandFrac );
+ p->radius.final = CG_RandomiseValue( bp->radius.final, bp->radius.finalRandFrac );
+
+ p->radius.initial += bp->scaleWithCharge * pe->parent->charge;
+
+ p->alpha.delay = (int)CG_RandomiseValue( (float)bp->alpha.delay, bp->alpha.delayRandFrac );
+ p->alpha.initial = CG_RandomiseValue( bp->alpha.initial, bp->alpha.initialRandFrac );
+ p->alpha.final = CG_RandomiseValue( bp->alpha.final, bp->alpha.finalRandFrac );
+
+ p->rotation.delay = (int)CG_RandomiseValue( (float)bp->rotation.delay, bp->rotation.delayRandFrac );
+ p->rotation.initial = CG_RandomiseValue( bp->rotation.initial, bp->rotation.initialRandFrac );
+ p->rotation.final = CG_RandomiseValue( bp->rotation.final, bp->rotation.finalRandFrac );
+
+ p->dLightRadius.delay =
+ (int)CG_RandomiseValue( (float)bp->dLightRadius.delay, bp->dLightRadius.delayRandFrac );
+ p->dLightRadius.initial =
+ CG_RandomiseValue( bp->dLightRadius.initial, bp->dLightRadius.initialRandFrac );
+ p->dLightRadius.final =
+ CG_RandomiseValue( bp->dLightRadius.final, bp->dLightRadius.finalRandFrac );
+
+ p->colorDelay = CG_RandomiseValue( bp->colorDelay, bp->colorDelayRandFrac );
+
+ p->bounceMarkRadius = CG_RandomiseValue( bp->bounceMarkRadius, bp->bounceMarkRadiusRandFrac );
+ p->bounceMarkCount =
+ rint( CG_RandomiseValue( (float)bp->bounceMarkCount, bp->bounceMarkCountRandFrac ) );
+ p->bounceSoundCount =
+ rint( CG_RandomiseValue( (float)bp->bounceSoundCount, bp->bounceSoundCountRandFrac ) );
+
+ if( bp->numModels )
+ {
+ p->model = bp->models[ rand( ) % bp->numModels ];
+
+ if( bp->modelAnimation.frameLerp < 0 )
+ {
+ bp->modelAnimation.frameLerp = p->lifeTime / bp->modelAnimation.numFrames;
+ bp->modelAnimation.initialLerp = p->lifeTime / bp->modelAnimation.numFrames;
+ }
+ }
+
+ if( !CG_AttachmentPoint( &ps->attachment, attachmentPoint ) )
+ return NULL;
+
+ VectorCopy( attachmentPoint, p->origin );
+
+ if( CG_AttachmentAxis( &ps->attachment, transform ) )
+ {
+ vec3_t transDisplacement;
+
+ VectorMatrixMultiply( bp->displacement, transform, transDisplacement );
+ VectorAdd( p->origin, transDisplacement, p->origin );
+ }
+ else
+ VectorAdd( p->origin, bp->displacement, p->origin );
+
+ for( j = 0; j <= 2; j++ )
+ p->origin[ j ] += ( crandom( ) * bp->randDisplacement[ j ] );
+
+ switch( bp->velMoveType )
+ {
+ case PMT_STATIC:
+ if( bp->velMoveValues.dirType == PMD_POINT )
+ VectorSubtract( bp->velMoveValues.point, p->origin, p->velocity );
+ else if( bp->velMoveValues.dirType == PMD_LINEAR )
+ VectorCopy( bp->velMoveValues.dir, p->velocity );
+ break;
+
+ case PMT_STATIC_TRANSFORM:
+ if( !CG_AttachmentAxis( &ps->attachment, transform ) )
+ return NULL;
+
+ if( bp->velMoveValues.dirType == PMD_POINT )
+ {
+ vec3_t transPoint;
+
+ VectorMatrixMultiply( bp->velMoveValues.point, transform, transPoint );
+ VectorSubtract( transPoint, p->origin, p->velocity );
+ }
+ else if( bp->velMoveValues.dirType == PMD_LINEAR )
+ VectorMatrixMultiply( bp->velMoveValues.dir, transform, p->velocity );
+ break;
+
+ case PMT_TAG:
+ case PMT_CENT_ANGLES:
+ if( bp->velMoveValues.dirType == PMD_POINT )
+ VectorSubtract( attachmentPoint, p->origin, p->velocity );
+ else if( bp->velMoveValues.dirType == PMD_LINEAR )
+ {
+ if( !CG_AttachmentDir( &ps->attachment, p->velocity ) )
+ return NULL;
+ }
+ break;
+
+ case PMT_NORMAL:
+ if( !ps->normalValid )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: a particle with velocityType "
+ "normal has no normal\n" );
+ return NULL;
+ }
+
+ VectorCopy( ps->normal, p->velocity );
+
+ //normal displacement
+ VectorNormalize( p->velocity );
+ VectorMA( p->origin, bp->normalDisplacement, p->velocity, p->origin );
+ break;
+ }
+
+ VectorNormalize( p->velocity );
+ CG_SpreadVector( p->velocity, bp->velMoveValues.dirRandAngle );
+ VectorScale( p->velocity,
+ CG_RandomiseValue( bp->velMoveValues.mag, bp->velMoveValues.magRandFrac ),
+ p->velocity );
+
+ if( CG_AttachmentVelocity( &ps->attachment, attachmentVelocity ) )
+ {
+ VectorMA( p->velocity,
+ CG_RandomiseValue( bp->velMoveValues.parentVelFrac,
+ bp->velMoveValues.parentVelFracRandFrac ), attachmentVelocity, p->velocity );
+ }
+
+ p->lastEvalTime = cg.time;
+
+ p->valid = qtrue;
+
+ //this particle has a child particle system attached
+ if( bp->childSystemName[ 0 ] != '\0' )
+ {
+ particleSystem_t *ps = CG_SpawnNewParticleSystem( bp->childSystemHandle );
+
+ if( CG_IsParticleSystemValid( &ps ) )
+ {
+ CG_SetAttachmentParticle( &ps->attachment, p );
+ CG_AttachToParticle( &ps->attachment );
+ }
+ }
+
+ //this particle has a child trail system attached
+ if( bp->childTrailSystemName[ 0 ] != '\0' )
+ {
+ trailSystem_t *ts = CG_SpawnNewTrailSystem( bp->childTrailSystemHandle );
+
+ if( CG_IsTrailSystemValid( &ts ) )
+ {
+ CG_SetAttachmentParticle( &ts->frontAttachment, p );
+ CG_AttachToParticle( &ts->frontAttachment );
+ }
+ }
+
+ break;
+ }
+ }
+
+ return p;
+}
+
+
+/*
+===============
+CG_SpawnNewParticles
+
+Check if there are any ejectors that should be
+introducing new particles
+===============
+*/
+static void CG_SpawnNewParticles( void )
+{
+ int i, j;
+ particle_t *p;
+ particleSystem_t *ps;
+ particleEjector_t *pe;
+ baseParticleEjector_t *bpe;
+ float lerpFrac;
+ int count;
+
+ for( i = 0; i < MAX_PARTICLE_EJECTORS; i++ )
+ {
+ pe = &particleEjectors[ i ];
+ ps = pe->parent;
+
+ if( pe->valid )
+ {
+ //a non attached particle system can't make particles
+ if( !CG_Attached( &ps->attachment ) )
+ continue;
+
+ bpe = particleEjectors[ i ].class;
+
+ //if this system is scheduled for removal don't make any new particles
+ if( !ps->lazyRemove )
+ {
+ while( pe->nextEjectionTime <= cg.time &&
+ ( pe->count > 0 || pe->totalParticles == PARTICLES_INFINITE ) )
+ {
+ for( j = 0; j < bpe->numParticles; j++ )
+ CG_SpawnNewParticle( bpe->particles[ j ], pe );
+
+ if( pe->count > 0 )
+ pe->count--;
+
+ //calculate next ejection time
+ lerpFrac = 1.0 - ( (float)pe->count / (float)pe->totalParticles );
+ pe->nextEjectionTime = cg.time + (int)CG_RandomiseValue(
+ CG_LerpValues( pe->ejectPeriod.initial,
+ pe->ejectPeriod.final,
+ lerpFrac ),
+ pe->ejectPeriod.randFrac );
+ }
+ }
+
+ if( pe->count == 0 || ps->lazyRemove )
+ {
+ count = 0;
+
+ //wait for child particles to die before declaring this pe invalid
+ for( j = 0; j < MAX_PARTICLES; j++ )
+ {
+ p = &particles[ j ];
+
+ if( p->valid && p->parent == pe )
+ count++;
+ }
+
+ if( !count )
+ pe->valid = qfalse;
+ }
+ }
+ }
+}
+
+
+/*
+===============
+CG_SpawnNewParticleEjector
+
+Allocate a new particle ejector
+===============
+*/
+static particleEjector_t *CG_SpawnNewParticleEjector( baseParticleEjector_t *bpe,
+ particleSystem_t *parent )
+{
+ int i;
+ particleEjector_t *pe = NULL;
+ particleSystem_t *ps = parent;
+
+ for( i = 0; i < MAX_PARTICLE_EJECTORS; i++ )
+ {
+ pe = &particleEjectors[ i ];
+
+ if( !pe->valid )
+ {
+ memset( pe, 0, sizeof( particleEjector_t ) );
+
+ //found a free slot
+ pe->class = bpe;
+ pe->parent = ps;
+
+ pe->ejectPeriod.initial = bpe->eject.initial;
+ pe->ejectPeriod.final = bpe->eject.final;
+ pe->ejectPeriod.randFrac = bpe->eject.randFrac;
+
+ pe->nextEjectionTime = cg.time +
+ (int)CG_RandomiseValue( (float)bpe->eject.delay, bpe->eject.delayRandFrac );
+ pe->count = pe->totalParticles =
+ (int)rint( CG_RandomiseValue( (float)bpe->totalParticles, bpe->totalParticlesRandFrac ) );
+
+ pe->valid = qtrue;
+
+ if( cg_debugParticles.integer >= 1 )
+ CG_Printf( "PE %s created\n", ps->class->name );
+
+ break;
+ }
+ }
+
+ return pe;
+}
+
+
+/*
+===============
+CG_SpawnNewParticleSystem
+
+Allocate a new particle system
+===============
+*/
+particleSystem_t *CG_SpawnNewParticleSystem( qhandle_t psHandle )
+{
+ int i, j;
+ particleSystem_t *ps = NULL;
+ baseParticleSystem_t *bps = &baseParticleSystems[ psHandle - 1 ];
+
+ if( !bps->registered )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: a particle system has not been registered yet\n" );
+ return NULL;
+ }
+
+ for( i = 0; i < MAX_PARTICLE_SYSTEMS; i++ )
+ {
+ ps = &particleSystems[ i ];
+
+ if( !ps->valid )
+ {
+ memset( ps, 0, sizeof( particleSystem_t ) );
+
+ //found a free slot
+ ps->class = bps;
+
+ ps->valid = qtrue;
+ ps->lazyRemove = qfalse;
+
+ for( j = 0; j < bps->numEjectors; j++ )
+ CG_SpawnNewParticleEjector( bps->ejectors[ j ], ps );
+
+ if( cg_debugParticles.integer >= 1 )
+ CG_Printf( "PS %s created\n", bps->name );
+
+ break;
+ }
+ }
+
+ return ps;
+}
+
+/*
+===============
+CG_RegisterParticleSystem
+
+Load the shaders required for a particle system
+===============
+*/
+qhandle_t CG_RegisterParticleSystem( char *name )
+{
+ int i, j, k, l;
+ baseParticleSystem_t *bps;
+ baseParticleEjector_t *bpe;
+ baseParticle_t *bp;
+
+ for( i = 0; i < MAX_BASEPARTICLE_SYSTEMS; i++ )
+ {
+ bps = &baseParticleSystems[ i ];
+
+ if( !Q_stricmpn( bps->name, name, MAX_QPATH ) )
+ {
+ //already registered
+ if( bps->registered )
+ return i + 1;
+
+ for( j = 0; j < bps->numEjectors; j++ )
+ {
+ bpe = bps->ejectors[ j ];
+
+ for( l = 0; l < bpe->numParticles; l++ )
+ {
+ bp = bpe->particles[ l ];
+
+ for( k = 0; k < bp->numFrames; k++ )
+ bp->shaders[ k ] = trap_R_RegisterShader( bp->shaderNames[ k ] );
+
+ for( k = 0; k < bp->numModels; k++ )
+ bp->models[ k ] = trap_R_RegisterModel( bp->modelNames[ k ] );
+
+ if( bp->bounceMarkName[ 0 ] != '\0' )
+ bp->bounceMark = trap_R_RegisterShader( bp->bounceMarkName );
+
+ if( bp->bounceSoundName[ 0 ] != '\0' )
+ bp->bounceSound = trap_S_RegisterSound( bp->bounceSoundName, qfalse );
+
+ //recursively register any children
+ if( bp->childSystemName[ 0 ] != '\0' )
+ {
+ //don't care about a handle for children since
+ //the system deals with it
+ CG_RegisterParticleSystem( bp->childSystemName );
+ }
+
+ if( bp->onDeathSystemName[ 0 ] != '\0' )
+ {
+ //don't care about a handle for children since
+ //the system deals with it
+ CG_RegisterParticleSystem( bp->onDeathSystemName );
+ }
+
+ if( bp->childTrailSystemName[ 0 ] != '\0' )
+ bp->childTrailSystemHandle = CG_RegisterTrailSystem( bp->childTrailSystemName );
+ }
+ }
+
+ if( cg_debugParticles.integer >= 1 )
+ CG_Printf( "Registered particle system %s\n", name );
+
+ bps->registered = qtrue;
+
+ //avoid returning 0
+ return i + 1;
+ }
+ }
+
+ CG_Printf( S_COLOR_RED "ERROR: failed to register particle system %s\n", name );
+ return 0;
+}
+
+
+/*
+===============
+CG_ParseValueAndVariance
+
+Parse a value and its random variance
+===============
+*/
+static void CG_ParseValueAndVariance( char *token, float *value, float *variance, qboolean allowNegative )
+{
+ char valueBuffer[ 16 ];
+ char *variancePtr = NULL, *varEndPointer = NULL;
+ float localValue = 0.0f;
+ float localVariance = 0.0f;
+
+ Q_strncpyz( valueBuffer, token, sizeof( valueBuffer ) );
+
+ variancePtr = strchr( valueBuffer, '~' );
+
+ //variance included
+ if( variancePtr )
+ {
+ variancePtr[ 0 ] = '\0';
+ variancePtr++;
+
+ localValue = atof_neg( valueBuffer, allowNegative );
+
+ varEndPointer = strchr( variancePtr, '%' );
+
+ if( varEndPointer )
+ {
+ varEndPointer[ 0 ] = '\0';
+ localVariance = atof_neg( variancePtr, qfalse ) / 100.0f;
+ }
+ else
+ {
+ if( localValue != 0.0f )
+ localVariance = atof_neg( variancePtr, qfalse ) / localValue;
+ else
+ localVariance = atof_neg( variancePtr, qfalse );
+ }
+ }
+ else
+ localValue = atof_neg( valueBuffer, allowNegative );
+
+ if( value != NULL )
+ *value = localValue;
+
+ if( variance != NULL )
+ *variance = localVariance;
+}
+
+/*
+===============
+CG_ParseColor
+===============
+*/
+static qboolean CG_ParseColor( byte *c, char **text_p )
+{
+ char *token;
+ int i;
+
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+
+ if( !Q_stricmp( token, "" ) )
+ return qfalse;
+
+ c[ i ] = (int)( (float)0xFF * atof_neg( token, qfalse ) );
+ }
+
+ return qtrue;
+}
+
+/*
+===============
+CG_ParseParticle
+
+Parse a particle section
+===============
+*/
+static qboolean CG_ParseParticle( baseParticle_t *bp, char **text_p )
+{
+ char *token;
+ float number, randFrac;
+ int i;
+
+ // read optional parameters
+ while( 1 )
+ {
+ token = COM_Parse( text_p );
+
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "" ) )
+ return qfalse;
+
+ if( !Q_stricmp( token, "bounce" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "cull" ) )
+ {
+ bp->bounceCull = qtrue;
+
+ bp->bounceFrac = -1.0f;
+ bp->bounceFracRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->bounceFrac = number;
+ bp->bounceFracRandFrac = randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "bounceMark" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->bounceMarkCount = number;
+ bp->bounceMarkCountRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->bounceMarkRadius = number;
+ bp->bounceMarkRadiusRandFrac = randFrac;
+
+ token = COM_ParseExt( text_p, qfalse );
+ if( !*token )
+ break;
+
+ Q_strncpyz( bp->bounceMarkName, token, MAX_QPATH );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "bounceSound" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->bounceSoundCount = number;
+ bp->bounceSoundCountRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ Q_strncpyz( bp->bounceSoundName, token, MAX_QPATH );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "shader" ) )
+ {
+ if( bp->numModels > 0 )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: 'shader' not allowed in "
+ "conjunction with 'model'\n", token );
+ break;
+ }
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "sync" ) )
+ bp->framerate = 0.0f;
+ else
+ bp->framerate = atof_neg( token, qfalse );
+
+ token = COM_ParseExt( text_p, qfalse );
+ if( !*token )
+ break;
+
+ while( *token && bp->numFrames < MAX_PS_SHADER_FRAMES )
+ {
+ Q_strncpyz( bp->shaderNames[ bp->numFrames++ ], token, MAX_QPATH );
+ token = COM_ParseExt( text_p, qfalse );
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "model" ) )
+ {
+ if( bp->numFrames > 0 )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: 'model' not allowed in "
+ "conjunction with 'shader'\n", token );
+ break;
+ }
+
+ token = COM_ParseExt( text_p, qfalse );
+ if( !*token )
+ break;
+
+ while( *token && bp->numModels < MAX_PS_MODELS )
+ {
+ Q_strncpyz( bp->modelNames[ bp->numModels++ ], token, MAX_QPATH );
+ token = COM_ParseExt( text_p, qfalse );
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "modelAnimation" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ bp->modelAnimation.firstFrame = atoi_neg( token, qfalse );
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ bp->modelAnimation.numFrames = atoi( token );
+ bp->modelAnimation.reversed = qfalse;
+ bp->modelAnimation.flipflop = qfalse;
+
+ // if numFrames is negative the animation is reversed
+ if( bp->modelAnimation.numFrames < 0 )
+ {
+ bp->modelAnimation.numFrames = -bp->modelAnimation.numFrames;
+ bp->modelAnimation.reversed = qtrue;
+ }
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ bp->modelAnimation.loopFrames = atoi( token );
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ if( !Q_stricmp( token, "sync" ) )
+ {
+ bp->modelAnimation.frameLerp = -1;
+ bp->modelAnimation.initialLerp = -1;
+ }
+ else
+ {
+ float fps = atof_neg( token, qfalse );
+
+ if( fps == 0.0f )
+ fps = 1.0f;
+
+ bp->modelAnimation.frameLerp = 1000 / fps;
+ bp->modelAnimation.initialLerp = 1000 / fps;
+ }
+
+ continue;
+ }
+ ///
+ else if( !Q_stricmp( token, "velocityType" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "static" ) )
+ bp->velMoveType = PMT_STATIC;
+ else if( !Q_stricmp( token, "static_transform" ) )
+ bp->velMoveType = PMT_STATIC_TRANSFORM;
+ else if( !Q_stricmp( token, "tag" ) )
+ bp->velMoveType = PMT_TAG;
+ else if( !Q_stricmp( token, "cent" ) )
+ bp->velMoveType = PMT_CENT_ANGLES;
+ else if( !Q_stricmp( token, "normal" ) )
+ bp->velMoveType = PMT_NORMAL;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "velocityDir" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "linear" ) )
+ bp->velMoveValues.dirType = PMD_LINEAR;
+ else if( !Q_stricmp( token, "point" ) )
+ bp->velMoveValues.dirType = PMD_POINT;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "velocityMagnitude" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->velMoveValues.mag = number;
+ bp->velMoveValues.magRandFrac = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "parentVelocityFraction" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->velMoveValues.parentVelFrac = number;
+ bp->velMoveValues.parentVelFracRandFrac = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "velocity" ) )
+ {
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->velMoveValues.dir[ i ] = atof_neg( token, qtrue );
+ }
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, NULL, &randFrac, qfalse );
+
+ bp->velMoveValues.dirRandAngle = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "velocityPoint" ) )
+ {
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->velMoveValues.point[ i ] = atof_neg( token, qtrue );
+ }
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, NULL, &randFrac, qfalse );
+
+ bp->velMoveValues.pointRandAngle = randFrac;
+
+ continue;
+ }
+ ///
+ else if( !Q_stricmp( token, "accelerationType" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "static" ) )
+ bp->accMoveType = PMT_STATIC;
+ else if( !Q_stricmp( token, "static_transform" ) )
+ bp->accMoveType = PMT_STATIC_TRANSFORM;
+ else if( !Q_stricmp( token, "tag" ) )
+ bp->accMoveType = PMT_TAG;
+ else if( !Q_stricmp( token, "cent" ) )
+ bp->accMoveType = PMT_CENT_ANGLES;
+ else if( !Q_stricmp( token, "normal" ) )
+ bp->accMoveType = PMT_NORMAL;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "accelerationDir" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "linear" ) )
+ bp->accMoveValues.dirType = PMD_LINEAR;
+ else if( !Q_stricmp( token, "point" ) )
+ bp->accMoveValues.dirType = PMD_POINT;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "accelerationMagnitude" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->accMoveValues.mag = number;
+ bp->accMoveValues.magRandFrac = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "acceleration" ) )
+ {
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->accMoveValues.dir[ i ] = atof_neg( token, qtrue );
+ }
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, NULL, &randFrac, qfalse );
+
+ bp->accMoveValues.dirRandAngle = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "accelerationPoint" ) )
+ {
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->accMoveValues.point[ i ] = atof_neg( token, qtrue );
+ }
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, NULL, &randFrac, qfalse );
+
+ bp->accMoveValues.pointRandAngle = randFrac;
+
+ continue;
+ }
+ ///
+ else if( !Q_stricmp( token, "displacement" ) )
+ {
+ for( i = 0; i <= 2; i++ )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &bp->displacement[ i ],
+ &bp->randDisplacement[ i ], qtrue );
+ }
+
+ // if there is another token on the same line interpret it as an
+ // additional displacement in all three directions, for compatibility
+ // with the old scripts where this was the only option
+ randFrac = 0;
+ token = COM_ParseExt( text_p, qfalse );
+ if( token )
+ CG_ParseValueAndVariance( token, NULL, &randFrac, qtrue );
+
+ for( i = 0; i < 3; i++ )
+ {
+ // convert randDisplacement from proportions to absolute values
+ if( bp->displacement[ i ] != 0 )
+ bp->randDisplacement[ i ] *= bp->displacement[ i ];
+
+ bp->randDisplacement[ i ] += randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "normalDisplacement" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->normalDisplacement = atof_neg( token, qtrue );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "overdrawProtection" ) )
+ {
+ bp->overdrawProtection = qtrue;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "realLight" ) )
+ {
+ bp->realLight = qtrue;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "dynamicLight" ) )
+ {
+ bp->dynamicLight = qtrue;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->dLightRadius.delay = (int)number;
+ bp->dLightRadius.delayRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->dLightRadius.initial = number;
+ bp->dLightRadius.initialRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ {
+ bp->dLightRadius.final = PARTICLES_SAME_AS_INITIAL;
+ bp->dLightRadius.finalRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->dLightRadius.final = number;
+ bp->dLightRadius.finalRandFrac = randFrac;
+ }
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ if( !Q_stricmp( token, "{" ) )
+ {
+ if( !CG_ParseColor( bp->dLightColor, text_p ) )
+ break;
+
+ token = COM_Parse( text_p );
+ if( Q_stricmp( token, "}" ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: missing '}'\n" );
+ break;
+ }
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "cullOnStartSolid" ) )
+ {
+ bp->cullOnStartSolid = qtrue;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "radius" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->radius.delay = (int)number;
+ bp->radius.delayRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->radius.initial = number;
+ bp->radius.initialRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ {
+ bp->radius.final = PARTICLES_SAME_AS_INITIAL;
+ bp->radius.finalRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->radius.final = number;
+ bp->radius.finalRandFrac = randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "physicsRadius" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->physicsRadius = atoi( token );
+ }
+ else if( !Q_stricmp( token, "alpha" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->alpha.delay = (int)number;
+ bp->alpha.delayRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->alpha.initial = number;
+ bp->alpha.initialRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ {
+ bp->alpha.final = PARTICLES_SAME_AS_INITIAL;
+ bp->alpha.finalRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->alpha.final = number;
+ bp->alpha.finalRandFrac = randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "color" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->colorDelay = (int)number;
+ bp->colorDelayRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ if( !Q_stricmp( token, "{" ) )
+ {
+ if( !CG_ParseColor( bp->initialColor, text_p ) )
+ break;
+
+ token = COM_Parse( text_p );
+ if( Q_stricmp( token, "}" ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: missing '}'\n" );
+ break;
+ }
+
+ token = COM_Parse( text_p );
+ if( !*token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ {
+ bp->finalColor[ 0 ] = bp->initialColor[ 0 ];
+ bp->finalColor[ 1 ] = bp->initialColor[ 1 ];
+ bp->finalColor[ 2 ] = bp->initialColor[ 2 ];
+ }
+ else if( !Q_stricmp( token, "{" ) )
+ {
+ if( !CG_ParseColor( bp->finalColor, text_p ) )
+ break;
+
+ token = COM_Parse( text_p );
+ if( Q_stricmp( token, "}" ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: missing '}'\n" );
+ break;
+ }
+ }
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: missing '{'\n" );
+ break;
+ }
+ }
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: missing '{'\n" );
+ break;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "rotation" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->rotation.delay = (int)number;
+ bp->rotation.delayRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qtrue );
+
+ bp->rotation.initial = number;
+ bp->rotation.initialRandFrac = randFrac;
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ {
+ bp->rotation.final = PARTICLES_SAME_AS_INITIAL;
+ bp->rotation.finalRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qtrue );
+
+ bp->rotation.final = number;
+ bp->rotation.finalRandFrac = randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "lifeTime" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bp->lifeTime = (int)number;
+ bp->lifeTimeRandFrac = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "childSystem" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ Q_strncpyz( bp->childSystemName, token, MAX_QPATH );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "onDeathSystem" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ Q_strncpyz( bp->onDeathSystemName, token, MAX_QPATH );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "childTrailSystem" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ Q_strncpyz( bp->childTrailSystemName, token, MAX_QPATH );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "scaleWithCharge" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bp->scaleWithCharge = atof( token );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "}" ) )
+ return qtrue; //reached the end of this particle
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: unknown token '%s' in particle\n", token );
+ return qfalse;
+ }
+ }
+
+ return qfalse;
+}
+
+/*
+===============
+CG_InitialiseBaseParticle
+===============
+*/
+static void CG_InitialiseBaseParticle( baseParticle_t *bp )
+{
+ memset( bp, 0, sizeof( baseParticle_t ) );
+
+ memset( bp->initialColor, 0xFF, sizeof( bp->initialColor ) );
+ memset( bp->finalColor, 0xFF, sizeof( bp->finalColor ) );
+}
+
+/*
+===============
+CG_ParseParticleEjector
+
+Parse a particle ejector section
+===============
+*/
+static qboolean CG_ParseParticleEjector( baseParticleEjector_t *bpe, char **text_p )
+{
+ char *token;
+ float number, randFrac;
+
+ // read optional parameters
+ while( 1 )
+ {
+ token = COM_Parse( text_p );
+
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "" ) )
+ return qfalse;
+
+ if( !Q_stricmp( token, "{" ) )
+ {
+ CG_InitialiseBaseParticle( &baseParticles[ numBaseParticles ] );
+
+ if( !CG_ParseParticle( &baseParticles[ numBaseParticles ], text_p ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: failed to parse particle\n" );
+ return qfalse;
+ }
+
+ if( bpe->numParticles == MAX_PARTICLES_PER_EJECTOR )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: ejector has > %d particles\n", MAX_PARTICLES_PER_EJECTOR );
+ return qfalse;
+ }
+ else if( numBaseParticles == MAX_BASEPARTICLES )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: maximum number of particles (%d) reached\n", MAX_BASEPARTICLES );
+ return qfalse;
+ }
+ else
+ {
+ //start parsing particles again
+ bpe->particles[ bpe->numParticles ] = &baseParticles[ numBaseParticles ];
+ bpe->numParticles++;
+ numBaseParticles++;
+ }
+ continue;
+ }
+ else if( !Q_stricmp( token, "delay" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bpe->eject.delay = (int)number;
+ bpe->eject.delayRandFrac = randFrac;
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "period" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ bpe->eject.initial = atoi_neg( token, qfalse );
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "-" ) )
+ bpe->eject.final = PARTICLES_SAME_AS_INITIAL;
+ else
+ bpe->eject.final = atoi_neg( token, qfalse );
+
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ CG_ParseValueAndVariance( token, NULL, &bpe->eject.randFrac, qfalse );
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "count" ) )
+ {
+ token = COM_Parse( text_p );
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "infinite" ) )
+ {
+ bpe->totalParticles = PARTICLES_INFINITE;
+ bpe->totalParticlesRandFrac = 0.0f;
+ }
+ else
+ {
+ CG_ParseValueAndVariance( token, &number, &randFrac, qfalse );
+
+ bpe->totalParticles = (int)number;
+ bpe->totalParticlesRandFrac = randFrac;
+ }
+
+ continue;
+ }
+ else if( !Q_stricmp( token, "particle" ) ) //acceptable text
+ continue;
+ else if( !Q_stricmp( token, "}" ) )
+ return qtrue; //reached the end of this particle ejector
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: unknown token '%s' in particle ejector\n", token );
+ return qfalse;
+ }
+ }
+
+ return qfalse;
+}
+
+
+/*
+===============
+CG_ParseParticleSystem
+
+Parse a particle system section
+===============
+*/
+static qboolean CG_ParseParticleSystem( baseParticleSystem_t *bps, char **text_p, const char *name )
+{
+ char *token;
+ baseParticleEjector_t *bpe;
+
+ // read optional parameters
+ while( 1 )
+ {
+ token = COM_Parse( text_p );
+
+ if( !token )
+ break;
+
+ if( !Q_stricmp( token, "" ) )
+ return qfalse;
+
+ if( !Q_stricmp( token, "{" ) )
+ {
+ if( !CG_ParseParticleEjector( &baseParticleEjectors[ numBaseParticleEjectors ], text_p ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: failed to parse particle ejector\n" );
+ return qfalse;
+ }
+
+ bpe = &baseParticleEjectors[ numBaseParticleEjectors ];
+
+ //check for infinite count + zero period
+ if( bpe->totalParticles == PARTICLES_INFINITE &&
+ ( bpe->eject.initial == 0.0f || bpe->eject.final == 0.0f ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: ejector with 'count infinite' potentially has zero period\n" );
+ return qfalse;
+ }
+
+ if( bps->numEjectors == MAX_EJECTORS_PER_SYSTEM )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: particle system has > %d ejectors\n", MAX_EJECTORS_PER_SYSTEM );
+ return qfalse;
+ }
+ else if( numBaseParticleEjectors == MAX_BASEPARTICLE_EJECTORS )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: maximum number of particle ejectors (%d) reached\n",
+ MAX_BASEPARTICLE_EJECTORS );
+ return qfalse;
+ }
+ else
+ {
+ //start parsing ejectors again
+ bps->ejectors[ bps->numEjectors ] = &baseParticleEjectors[ numBaseParticleEjectors ];
+ bps->numEjectors++;
+ numBaseParticleEjectors++;
+ }
+ continue;
+ }
+ else if( !Q_stricmp( token, "thirdPersonOnly" ) )
+ bps->thirdPersonOnly = qtrue;
+ else if( !Q_stricmp( token, "ejector" ) ) //acceptable text
+ continue;
+ else if( !Q_stricmp( token, "}" ) )
+ {
+ if( cg_debugParticles.integer >= 1 )
+ CG_Printf( "Parsed particle system %s\n", name );
+
+ return qtrue; //reached the end of this particle system
+ }
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: unknown token '%s' in particle system %s\n", token, bps->name );
+ return qfalse;
+ }
+ }
+
+ return qfalse;
+}
+
+/*
+===============
+CG_ParseParticleFile
+
+Load the particle systems from a particle file
+===============
+*/
+static qboolean CG_ParseParticleFile( const char *fileName )
+{
+ char *text_p;
+ int i;
+ int len;
+ char *token;
+ char text[ 32000 ];
+ char psName[ MAX_QPATH ];
+ qboolean psNameSet = qfalse;
+ fileHandle_t f;
+
+ // load the file
+ len = trap_FS_FOpenFile( fileName, &f, FS_READ );
+ if( len < 0 )
+ return qfalse;
+
+ if( len == 0 || len >= sizeof( text ) - 1 )
+ {
+ trap_FS_FCloseFile( f );
+ CG_Printf( S_COLOR_RED "ERROR: particle file %s is %s\n", fileName,
+ len == 0 ? "empty" : "too long" );
+ return qfalse;
+ }
+
+ trap_FS_Read( text, len, f );
+ text[ len ] = 0;
+ trap_FS_FCloseFile( f );
+
+ // parse the text
+ text_p = text;
+
+ // read optional parameters
+ while( 1 )
+ {
+ token = COM_Parse( &text_p );
+
+ if( !Q_stricmp( token, "" ) )
+ break;
+
+ if( !Q_stricmp( token, "{" ) )
+ {
+ if( psNameSet )
+ {
+ //check for name space clashes
+ for( i = 0; i < numBaseParticleSystems; i++ )
+ {
+ if( !Q_stricmp( baseParticleSystems[ i ].name, psName ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: a particle system is already named %s\n", psName );
+ return qfalse;
+ }
+ }
+
+ Q_strncpyz( baseParticleSystems[ numBaseParticleSystems ].name, psName, MAX_QPATH );
+
+ if( !CG_ParseParticleSystem( &baseParticleSystems[ numBaseParticleSystems ], &text_p, psName ) )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: %s: failed to parse particle system %s\n", fileName, psName );
+ return qfalse;
+ }
+
+ //start parsing particle systems again
+ psNameSet = qfalse;
+
+ if( numBaseParticleSystems == MAX_BASEPARTICLE_SYSTEMS )
+ {
+ CG_Printf( S_COLOR_RED "ERROR: maximum number of particle systems (%d) reached\n",
+ MAX_BASEPARTICLE_SYSTEMS );
+ return qfalse;
+ }
+ else
+ numBaseParticleSystems++;
+
+ continue;
+ }
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: unamed particle system\n" );
+ return qfalse;
+ }
+ }
+
+ if( !psNameSet )
+ {
+ Q_strncpyz( psName, token, sizeof( psName ) );
+ psNameSet = qtrue;
+ }
+ else
+ {
+ CG_Printf( S_COLOR_RED "ERROR: particle system already named\n" );
+ return qfalse;
+ }
+ }
+
+ return qtrue;
+}
+
+
+/*
+===============
+CG_LoadParticleSystems
+
+Load particle systems from .particle files
+===============
+*/
+void CG_LoadParticleSystems( void )
+{
+ int i, j, numFiles, fileLen;
+ char fileList[ MAX_PARTICLE_FILES * MAX_QPATH ];
+ char fileName[ MAX_QPATH ];
+ char *filePtr;
+
+ //clear out the old
+ numBaseParticleSystems = 0;
+ numBaseParticleEjectors = 0;
+ numBaseParticles = 0;
+
+ for( i = 0; i < MAX_BASEPARTICLE_SYSTEMS; i++ )
+ {
+ baseParticleSystem_t *bps = &baseParticleSystems[ i ];
+ memset( bps, 0, sizeof( baseParticleSystem_t ) );
+ }
+
+ for( i = 0; i < MAX_BASEPARTICLE_EJECTORS; i++ )
+ {
+ baseParticleEjector_t *bpe = &baseParticleEjectors[ i ];
+ memset( bpe, 0, sizeof( baseParticleEjector_t ) );
+ }
+
+ for( i = 0; i < MAX_BASEPARTICLES; i++ )
+ {
+ baseParticle_t *bp = &baseParticles[ i ];
+ memset( bp, 0, sizeof( baseParticle_t ) );
+ }
+
+
+ //and bring in the new
+ numFiles = trap_FS_GetFileList( "scripts", ".particle",
+ fileList, MAX_PARTICLE_FILES * MAX_QPATH );
+ filePtr = fileList;
+
+ for( i = 0; i < numFiles; i++, filePtr += fileLen + 1 )
+ {
+ fileLen = strlen( filePtr );
+ strcpy( fileName, "scripts/" );
+ strcat( fileName, filePtr );
+ CG_Printf( "...loading '%s'\n", fileName );
+ CG_ParseParticleFile( fileName );
+ }
+
+ //connect any child systems to their psHandle
+ for( i = 0; i < numBaseParticles; i++ )
+ {
+ baseParticle_t *bp = &baseParticles[ i ];
+
+ if( bp->childSystemName[ 0 ] )
+ {
+ //particle class has a child, resolve the name
+ for( j = 0; j < numBaseParticleSystems; j++ )
+ {
+ baseParticleSystem_t *bps = &baseParticleSystems[ j ];
+
+ if( !Q_stricmp( bps->name, bp->childSystemName ) )
+ {
+ //FIXME: add checks for cycles and infinite children
+
+ bp->childSystemHandle = j + 1;
+
+ break;
+ }
+ }
+
+ if( j == numBaseParticleSystems )
+ {
+ //couldn't find named particle system
+ CG_Printf( S_COLOR_YELLOW "WARNING: failed to find child %s\n", bp->childSystemName );
+ bp->childSystemName[ 0 ] = '\0';
+ }
+ }
+
+ if( bp->onDeathSystemName[ 0 ] )
+ {
+ //particle class has a child, resolve the name
+ for( j = 0; j < numBaseParticleSystems; j++ )
+ {
+ baseParticleSystem_t *bps = &baseParticleSystems[ j ];
+
+ if( !Q_stricmp( bps->name, bp->onDeathSystemName ) )
+ {
+ //FIXME: add checks for cycles and infinite children
+
+ bp->onDeathSystemHandle = j + 1;
+
+ break;
+ }
+ }
+
+ if( j == numBaseParticleSystems )
+ {
+ //couldn't find named particle system
+ CG_Printf( S_COLOR_YELLOW "WARNING: failed to find onDeath system %s\n", bp->onDeathSystemName );
+ bp->onDeathSystemName[ 0 ] = '\0';
+ }
+ }
+ }
+}
+
+/*
+===============
+CG_SetParticleSystemNormal
+===============
+*/
+void CG_SetParticleSystemNormal( particleSystem_t *ps, vec3_t normal )
+{
+ if( ps == NULL || !ps->valid )
+ {
+ CG_Printf( S_COLOR_YELLOW "WARNING: tried to modify a NULL particle system\n" );
+ return;
+ }
+
+ ps->normalValid = qtrue;
+ VectorCopy( normal, ps->normal );
+ VectorNormalize( ps->normal );
+}
+
+
+/*
+===============
+CG_DestroyParticleSystem
+
+Destroy a particle system
+
+This doesn't actually invalidate anything, it just stops
+particle ejectors from producing new particles so the
+garbage collector will eventually remove this system.
+However is does set the pointer to NULL so the user is
+unable to manipulate this particle system any longer.
+===============
+*/
+void CG_DestroyParticleSystem( particleSystem_t **ps )
+{
+ int i;
+ particleEjector_t *pe;
+
+ if( *ps == NULL || !(*ps)->valid )
+ {
+ CG_Printf( S_COLOR_YELLOW "WARNING: tried to destroy a NULL particle system\n" );
+ return;
+ }
+
+ if( cg_debugParticles.integer >= 1 )
+ CG_Printf( "PS destroyed\n" );
+
+ for( i = 0; i < MAX_PARTICLE_EJECTORS; i++ )
+ {
+ pe = &particleEjectors[ i ];
+
+ if( pe->valid && pe->parent == *ps )
+ pe->totalParticles = pe->count = 0;
+ }
+
+ *ps = NULL;
+}
+
+/*
+===============
+CG_IsParticleSystemInfinite
+
+Test a particle system for 'count infinite' ejectors
+===============
+*/
+qboolean CG_IsParticleSystemInfinite( particleSystem_t *ps )
+{
+ int i;
+ particleEjector_t *pe;
+
+ if( ps == NULL )
+ {
+ CG_Printf( S_COLOR_YELLOW "WARNING: tried to test a NULL particle system\n" );
+ return qfalse;
+ }
+
+ if( !ps->valid )
+ {
+ CG_Printf( S_COLOR_YELLOW "WARNING: tried to test an invalid particle system\n" );
+ return qfalse;
+ }
+
+ //don't bother checking already invalid systems
+ if( !ps->valid )
+ return qfalse;
+
+ for( i = 0; i < MAX_PARTICLE_EJECTORS; i++ )
+ {
+ pe = &particleEjectors[ i ];
+
+ if( pe->valid && pe->parent == ps )
+ {
+ if( pe->totalParticles == PARTICLES_INFINITE )
+ return qtrue;
+ }
+ }
+
+ return qfalse;
+}
+
+/*
+===============
+CG_IsParticleSystemValid
+
+Test a particle system for validity
+===============
+*/
+qboolean CG_IsParticleSystemValid( particleSystem_t **ps )
+{
+ if( *ps == NULL || ( *ps && !(*ps)->valid ) )
+ {
+ if( *ps && !(*ps)->valid )
+ *ps = NULL;
+
+ return qfalse;
+ }
+
+ return qtrue;
+}
+
+/*
+===============
+CG_GarbageCollectParticleSystems
+
+Destroy inactive particle systems
+===============
+*/
+static void CG_GarbageCollectParticleSystems( void )
+{
+ int i, j, count;
+ particleSystem_t *ps;
+ particleEjector_t *pe;
+ int centNum;
+
+ for( i = 0; i < MAX_PARTICLE_SYSTEMS; i++ )
+ {
+ ps = &particleSystems[ i ];
+ count = 0;
+
+ //don't bother checking already invalid systems
+ if( !ps->valid )
+ continue;
+
+ for( j = 0; j < MAX_PARTICLE_EJECTORS; j++ )
+ {
+ pe = &particleEjectors[ j ];
+
+ if( pe->valid && pe->parent == ps )
+ count++;
+ }
+
+ if( !count )
+ ps->valid = qfalse;
+
+ //check systems where the parent cent has left the PVS
+ //( local player entity is always valid )
+ if( ( centNum = CG_AttachmentCentNum( &ps->attachment ) ) >= 0 &&
+ centNum != cg.snap->ps.clientNum )
+ {
+ if( !cg_entities[ centNum ].valid )
+ ps->lazyRemove = qtrue;
+ }
+
+ if( cg_debugParticles.integer >= 1 && !ps->valid )
+ CG_Printf( "PS %s garbage collected\n", ps->class->name );
+ }
+}
+
+
+/*
+===============
+CG_CalculateTimeFrac
+
+Calculate the fraction of time passed
+===============
+*/
+static float CG_CalculateTimeFrac( int birth, int life, int delay )
+{
+ float frac;
+
+ frac = ( (float)cg.time - (float)( birth + delay ) ) / (float)( life - delay );
+
+ if( frac < 0.0f )
+ frac = 0.0f;
+ else if( frac > 1.0f )
+ frac = 1.0f;
+
+ return frac;
+}
+
+/*
+===============
+CG_EvaluateParticlePhysics
+
+Compute the physics on a specific particle
+===============
+*/
+static void CG_EvaluateParticlePhysics( particle_t *p )
+{
+ particleSystem_t *ps = p->parent->parent;
+ baseParticle_t *bp = p->class;
+ vec3_t acceleration, newOrigin;
+ vec3_t mins, maxs;
+ float deltaTime, bounce, radius, dot;
+ trace_t trace;
+ vec3_t transform[ 3 ];
+
+ if( p->atRest )
+ {
+ VectorClear( p->velocity );
+ return;
+ }
+
+ switch( bp->accMoveType )
+ {
+ case PMT_STATIC:
+ if( bp->accMoveValues.dirType == PMD_POINT )
+ VectorSubtract( bp->accMoveValues.point, p->origin, acceleration );
+ else if( bp->accMoveValues.dirType == PMD_LINEAR )
+ VectorCopy( bp->accMoveValues.dir, acceleration );
+
+ break;
+
+ case PMT_STATIC_TRANSFORM:
+ if( !CG_AttachmentAxis( &ps->attachment, transform ) )
+ return;
+
+ if( bp->accMoveValues.dirType == PMD_POINT )
+ {
+ vec3_t transPoint;
+
+ VectorMatrixMultiply( bp->accMoveValues.point, transform, transPoint );
+ VectorSubtract( transPoint, p->origin, acceleration );
+ }
+ else if( bp->accMoveValues.dirType == PMD_LINEAR )
+ VectorMatrixMultiply( bp->accMoveValues.dir, transform, acceleration );
+ break;
+
+ case PMT_TAG:
+ case PMT_CENT_ANGLES:
+ if( bp->accMoveValues.dirType == PMD_POINT )
+ {
+ vec3_t point;
+
+ if( !CG_AttachmentPoint( &ps->attachment, point ) )
+ return;
+
+ VectorSubtract( point, p->origin, acceleration );
+ }
+ else if( bp->accMoveValues.dirType == PMD_LINEAR )
+ {
+ if( !CG_AttachmentDir( &ps->attachment, acceleration ) )
+ return;
+ }
+ break;
+
+ case PMT_NORMAL:
+ if( !ps->normalValid )
+ return;
+
+ VectorCopy( ps->normal, acceleration );
+
+ break;
+ }
+
+#define MAX_ACC_RADIUS 1000.0f
+
+ if( bp->accMoveValues.dirType == PMD_POINT )
+ {
+ //FIXME: so this fall off is a bit... odd -- it works..
+ float r2 = DotProduct( acceleration, acceleration ); // = radius^2
+ float scale = ( MAX_ACC_RADIUS - r2 ) / MAX_ACC_RADIUS;
+
+ if( scale > 1.0f )
+ scale = 1.0f;
+ else if( scale < 0.1f )
+ scale = 0.1f;
+
+ scale *= CG_RandomiseValue( bp->accMoveValues.mag, bp->accMoveValues.magRandFrac );
+
+ VectorNormalize( acceleration );
+ CG_SpreadVector( acceleration, bp->accMoveValues.dirRandAngle );
+ VectorScale( acceleration, scale, acceleration );
+ }
+ else if( bp->accMoveValues.dirType == PMD_LINEAR )
+ {
+ VectorNormalize( acceleration );
+ CG_SpreadVector( acceleration, bp->accMoveValues.dirRandAngle );
+ VectorScale( acceleration,
+ CG_RandomiseValue( bp->accMoveValues.mag, bp->accMoveValues.magRandFrac ),
+ acceleration );
+ }
+
+ // Some particles have a visual radius that differs from their collision radius
+ if( bp->physicsRadius )
+ radius = bp->physicsRadius;
+ else
+ radius = CG_LerpValues( p->radius.initial, p->radius.final,
+ CG_CalculateTimeFrac( p->birthTime, p->lifeTime,
+ p->radius.delay ) );
+
+ VectorSet( mins, -radius, -radius, -radius );
+ VectorSet( maxs, radius, radius, radius );
+
+ bounce = CG_RandomiseValue( bp->bounceFrac, bp->bounceFracRandFrac );
+
+ deltaTime = (float)( cg.time - p->lastEvalTime ) * 0.001;
+ VectorMA( p->velocity, deltaTime, acceleration, p->velocity );
+ VectorMA( p->origin, deltaTime, p->velocity, newOrigin );
+ p->lastEvalTime = cg.time;
+
+ // we're not doing particle physics, but at least cull them in solids
+ if( !cg_bounceParticles.integer )
+ {
+ int contents = trap_CM_PointContents( newOrigin, 0 );
+
+ if( ( contents & CONTENTS_SOLID ) || ( contents & CONTENTS_NODROP ) )
+ CG_DestroyParticle( p, NULL );
+ else
+ VectorCopy( newOrigin, p->origin );
+ return;
+ }
+
+ CG_Trace( &trace, p->origin, mins, maxs, newOrigin,
+ CG_AttachmentCentNum( &ps->attachment ), CONTENTS_SOLID );
+
+ //not hit anything or not a collider
+ if( trace.fraction == 1.0f || bounce == 0.0f )
+ {
+ VectorCopy( newOrigin, p->origin );
+ return;
+ }
+
+ //remove particles that get into a CONTENTS_NODROP brush
+ if( ( trap_CM_PointContents( trace.endpos, 0 ) & CONTENTS_NODROP ) ||
+ ( bp->cullOnStartSolid && trace.startsolid ) )
+ {
+ CG_DestroyParticle( p, NULL );
+ return;
+ }
+ else if( bp->bounceCull )
+ {
+ CG_DestroyParticle( p, trace.plane.normal );
+ return;
+ }
+
+ //reflect the velocity on the trace plane
+ dot = DotProduct( p->velocity, trace.plane.normal );
+ VectorMA( p->velocity, -2.0f * dot, trace.plane.normal, p->velocity );
+
+ VectorScale( p->velocity, bounce, p->velocity );
+
+ if( trace.plane.normal[ 2 ] > 0.5f &&
+ ( p->velocity[ 2 ] < 40.0f ||
+ p->velocity[ 2 ] < -cg.frametime * p->velocity[ 2 ] ) )
+ p->atRest = qtrue;
+
+ if( bp->bounceMarkName[ 0 ] && p->bounceMarkCount > 0 )
+ {
+ CG_ImpactMark( bp->bounceMark, trace.endpos, trace.plane.normal,
+ random( ) * 360, 1, 1, 1, 1, qtrue, bp->bounceMarkRadius, qfalse );
+ p->bounceMarkCount--;
+ }
+
+ if( bp->bounceSoundName[ 0 ] && p->bounceSoundCount > 0 )
+ {
+ trap_S_StartSound( trace.endpos, ENTITYNUM_WORLD, CHAN_AUTO, bp->bounceSound );
+ p->bounceSoundCount--;
+ }
+
+ VectorCopy( trace.endpos, p->origin );
+}
+
+
+#define GETKEY(x,y) (((x)>>y)&0xFF)
+
+/*
+===============
+CG_Radix
+===============
+*/
+static void CG_Radix( int bits, int size, particle_t **source, particle_t **dest )
+{
+ int count[ 256 ];
+ int index[ 256 ];
+ int i;
+
+ memset( count, 0, sizeof( count ) );
+
+ for( i = 0; i < size; i++ )
+ count[ GETKEY( source[ i ]->sortKey, bits ) ]++;
+
+ index[ 0 ] = 0;
+
+ for( i = 1; i < 256; i++ )
+ index[ i ] = index[ i - 1 ] + count[ i - 1 ];
+
+ for( i = 0; i < size; i++ )
+ dest[ index[ GETKEY( source[ i ]->sortKey, bits ) ]++ ] = source[ i ];
+}
+
+/*
+===============
+CG_RadixSort
+
+Radix sort with 4 byte size buckets
+===============
+*/
+static void CG_RadixSort( particle_t **source, particle_t **temp, int size )
+{
+ CG_Radix( 0, size, source, temp );
+ CG_Radix( 8, size, temp, source );
+ CG_Radix( 16, size, source, temp );
+ CG_Radix( 24, size, temp, source );
+}
+
+/*
+===============
+CG_CompactAndSortParticles
+
+Depth sort the particles
+===============
+*/
+static void CG_CompactAndSortParticles( void )
+{
+ int i, j = 0;
+ int numParticles;
+ vec3_t delta;
+
+ for( i = 0; i < MAX_PARTICLES; i++ )
+ sortedParticles[ i ] = &particles[ i ];
+
+ if( !cg_depthSortParticles.integer )
+ return;
+
+ for( i = MAX_PARTICLES - 1; i >= 0; i-- )
+ {
+ if( sortedParticles[ i ]->valid )
+ {
+ //find the first hole
+ while( j < MAX_PARTICLES && sortedParticles[ j ]->valid )
+ j++;
+
+ //no more holes
+ if( j >= i )
+ break;
+
+ sortedParticles[ j ] = sortedParticles[ i ];
+ }
+ }
+
+ numParticles = i;
+
+ //set sort keys
+ for( i = 0; i < numParticles; i++ )
+ {
+ VectorSubtract( sortedParticles[ i ]->origin, cg.refdef.vieworg, delta );
+ sortedParticles[ i ]->sortKey = (int)DotProduct( delta, delta );
+ }
+
+ CG_RadixSort( sortedParticles, radixBuffer, numParticles );
+
+ //FIXME: wtf?
+ //reverse order of particles array
+ for( i = 0; i < numParticles; i++ )
+ radixBuffer[ i ] = sortedParticles[ numParticles - i - 1 ];
+
+ for( i = 0; i < numParticles; i++ )
+ sortedParticles[ i ] = radixBuffer[ i ];
+}
+
+/*
+===============
+CG_RenderParticle
+
+Actually render a particle
+===============
+*/
+static void CG_RenderParticle( particle_t *p )
+{
+ refEntity_t re;
+ float timeFrac, scale;
+ int index;
+ baseParticle_t *bp = p->class;
+ particleSystem_t *ps = p->parent->parent;
+ baseParticleSystem_t *bps = ps->class;
+ vec3_t alight, dlight, lightdir;
+ int i;
+ vec3_t up = { 0.0f, 0.0f, 1.0f };
+
+ memset( &re, 0, sizeof( refEntity_t ) );
+
+ timeFrac = CG_CalculateTimeFrac( p->birthTime, p->lifeTime, 0 );
+
+ scale = CG_LerpValues( p->radius.initial,
+ p->radius.final,
+ CG_CalculateTimeFrac( p->birthTime,
+ p->lifeTime,
+ p->radius.delay ) );
+
+ re.shaderTime = p->birthTime / 1000.0f;
+
+ if( bp->numFrames ) //shader based
+ {
+ re.reType = RT_SPRITE;
+
+ //apply environmental lighting to the particle
+ if( bp->realLight )
+ {
+ trap_R_LightForPoint( p->origin, alight, dlight, lightdir );
+ for( i = 0; i <= 2; i++ )
+ re.shaderRGBA[ i ] = (byte)alight[ i ];
+ }
+ else
+ {
+ vec3_t colorRange;
+
+ VectorSubtract( bp->finalColor,
+ bp->initialColor, colorRange );
+
+ VectorMA( bp->initialColor,
+ CG_CalculateTimeFrac( p->birthTime,
+ p->lifeTime,
+ p->colorDelay ),
+ colorRange, re.shaderRGBA );
+ }
+
+ re.shaderRGBA[ 3 ] = (byte)( (float)0xFF *
+ CG_LerpValues( p->alpha.initial,
+ p->alpha.final,
+ CG_CalculateTimeFrac( p->birthTime,
+ p->lifeTime,
+ p->alpha.delay ) ) );
+
+ re.radius = scale;
+
+ re.rotation = CG_LerpValues( p->rotation.initial,
+ p->rotation.final,
+ CG_CalculateTimeFrac( p->birthTime,
+ p->lifeTime,
+ p->rotation.delay ) );
+
+ // if the view would be "inside" the sprite, kill the sprite
+ // so it doesn't add too much overdraw
+ if( Distance( p->origin, cg.refdef.vieworg ) < re.radius && bp->overdrawProtection )
+ return;
+
+ if( bp->framerate == 0.0f )
+ {
+ //sync animation time to lifeTime of particle
+ index = (int)( timeFrac * ( bp->numFrames + 1 ) );
+
+ if( index >= bp->numFrames )
+ index = bp->numFrames - 1;
+
+ re.customShader = bp->shaders[ index ];
+ }
+ else
+ {
+ //looping animation
+ index = (int)( bp->framerate * timeFrac * p->lifeTime * 0.001 ) % bp->numFrames;
+ re.customShader = bp->shaders[ index ];
+ }
+
+ }
+ else if( bp->numModels ) //model based
+ {
+ re.reType = RT_MODEL;
+
+ re.hModel = p->model;
+
+ if( p->atRest )
+ AxisCopy( p->lastAxis, re.axis );
+ else
+ {
+ // convert direction of travel into axis
+ VectorNormalize2( p->velocity, re.axis[ 0 ] );
+
+ if( re.axis[ 0 ][ 0 ] == 0.0f && re.axis[ 0 ][ 1 ] == 0.0f )
+ AxisCopy( axisDefault, re.axis );
+ else
+ {
+ ProjectPointOnPlane( re.axis[ 2 ], up, re.axis[ 0 ] );
+ VectorNormalize( re.axis[ 2 ] );
+ CrossProduct( re.axis[ 2 ], re.axis[ 0 ], re.axis[ 1 ] );
+ }
+
+ AxisCopy( re.axis, p->lastAxis );
+ }
+
+ if( scale != 1.0f )
+ {
+ VectorScale( re.axis[ 0 ], scale, re.axis[ 0 ] );
+ VectorScale( re.axis[ 1 ], scale, re.axis[ 1 ] );
+ VectorScale( re.axis[ 2 ], scale, re.axis[ 2 ] );
+ re.nonNormalizedAxes = qtrue;
+ }
+ else
+ re.nonNormalizedAxes = qfalse;
+
+ p->lf.animation = &bp->modelAnimation;
+
+ //run animation
+ CG_RunLerpFrame( &p->lf, 1.0f );
+
+ re.oldframe = p->lf.oldFrame;
+ re.frame = p->lf.frame;
+ re.backlerp = p->lf.backlerp;
+ }
+
+ if( bps->thirdPersonOnly &&
+ CG_AttachmentCentNum( &ps->attachment ) == cg.snap->ps.clientNum &&
+ !cg.renderingThirdPerson )
+ re.renderfx |= RF_THIRD_PERSON;
+
+ if( bp->dynamicLight && !( re.renderfx & RF_THIRD_PERSON ) )
+ {
+ trap_R_AddLightToScene( p->origin,
+ CG_LerpValues( p->dLightRadius.initial, p->dLightRadius.final,
+ CG_CalculateTimeFrac( p->birthTime, p->lifeTime, p->dLightRadius.delay ) ),
+ (float)bp->dLightColor[ 0 ] / (float)0xFF,
+ (float)bp->dLightColor[ 1 ] / (float)0xFF,
+ (float)bp->dLightColor[ 2 ] / (float)0xFF );
+ }
+
+ VectorCopy( p->origin, re.origin );
+
+ trap_R_AddRefEntityToScene( &re );
+}
+
+/*
+===============
+CG_AddParticles
+
+Add particles to the scene
+===============
+*/
+void CG_AddParticles( void )
+{
+ int i;
+ particle_t *p;
+ int numPS = 0, numPE = 0, numP = 0;
+
+ //remove expired particle systems
+ CG_GarbageCollectParticleSystems( );
+
+ //check each ejector and introduce any new particles
+ CG_SpawnNewParticles( );
+
+ //sorting
+ CG_CompactAndSortParticles( );
+
+ for( i = 0; i < MAX_PARTICLES; i++ )
+ {
+ p = sortedParticles[ i ];
+
+ if( p->valid )
+ {
+ if( p->birthTime + p->lifeTime > cg.time )
+ {
+ //particle is active
+ CG_EvaluateParticlePhysics( p );
+ CG_RenderParticle( p );
+ }
+ else
+ CG_DestroyParticle( p, NULL );
+ }
+ }
+
+ if( cg_debugParticles.integer >= 2 )
+ {
+ for( i = 0; i < MAX_PARTICLE_SYSTEMS; i++ )
+ if( particleSystems[ i ].valid )
+ numPS++;
+
+ for( i = 0; i < MAX_PARTICLE_EJECTORS; i++ )
+ if( particleEjectors[ i ].valid )
+ numPE++;
+
+ for( i = 0; i < MAX_PARTICLES; i++ )
+ if( particles[ i ].valid )
+ numP++;
+
+ CG_Printf( "PS: %d PE: %d P: %d\n", numPS, numPE, numP );
+ }
+}
+
+/*
+===============
+CG_ParticleSystemEntity
+
+Particle system entity client code
+===============
+*/
+void CG_ParticleSystemEntity( centity_t *cent )
+{
+ entityState_t *es;
+
+ es = &cent->currentState;
+
+ if( es->eFlags & EF_NODRAW )
+ {
+ if( CG_IsParticleSystemValid( &cent->entityPS ) && CG_IsParticleSystemInfinite( cent->entityPS ) )
+ CG_DestroyParticleSystem( &cent->entityPS );
+
+ return;
+ }
+
+ if( !CG_IsParticleSystemValid( &cent->entityPS ) && !cent->entityPSMissing )
+ {
+ cent->entityPS = CG_SpawnNewParticleSystem( cgs.gameParticleSystems[ es->modelindex ] );
+
+ if( CG_IsParticleSystemValid( &cent->entityPS ) )
+ {
+ CG_SetAttachmentPoint( &cent->entityPS->attachment, cent->lerpOrigin );
+ CG_SetAttachmentCent( &cent->entityPS->attachment, cent );
+ CG_AttachToPoint( &cent->entityPS->attachment );
+ }
+ else
+ cent->entityPSMissing = qtrue;
+ }
+}
+
+static particleSystem_t *testPS;
+static qhandle_t testPSHandle;
+
+/*
+===============
+CG_DestroyTestPS_f
+
+Destroy the test a particle system
+===============
+*/
+void CG_DestroyTestPS_f( void )
+{
+ if( CG_IsParticleSystemValid( &testPS ) )
+ CG_DestroyParticleSystem( &testPS );
+}
+
+/*
+===============
+CG_TestPS_f
+
+Test a particle system
+===============
+*/
+void CG_TestPS_f( void )
+{
+ vec3_t origin;
+ vec3_t up = { 0.0f, 0.0f, 1.0f };
+ char psName[ MAX_QPATH ];
+
+ if( trap_Argc( ) < 2 )
+ return;
+
+ Q_strncpyz( psName, CG_Argv( 1 ), MAX_QPATH );
+ testPSHandle = CG_RegisterParticleSystem( psName );
+
+ if( testPSHandle )
+ {
+ CG_DestroyTestPS_f( );
+
+ testPS = CG_SpawnNewParticleSystem( testPSHandle );
+
+ VectorMA( cg.refdef.vieworg, 100, cg.refdef.viewaxis[ 0 ], origin );
+
+ if( CG_IsParticleSystemValid( &testPS ) )
+ {
+ CG_SetAttachmentPoint( &testPS->attachment, origin );
+ CG_SetParticleSystemNormal( testPS, up );
+ CG_AttachToPoint( &testPS->attachment );
+ }
+ }
+}
generated by cgit (git 2.34.1) at 2024-05-06 20:01:53 +0000