/*
===============
CG_GarbageCollectTrailSystems
Destroy inactive trail systems
===============
*/
static void CG_GarbageCollectTrailSystems( void )
{
int i, j, count;
trailSystem_t *ts;
trailBeam_t *tb;
int centNum;
for( i = 0; i < MAX_TRAIL_SYSTEMS; i++ )
{
ts = &trailSystems[ i ];
count = 0;
//don't bother checking already invalid systems
if( !ts->valid )
continue;
for( j = 0; j < MAX_TRAIL_BEAMS; j++ )
{
tb = &trailBeams[ j ];
if( tb->valid && tb->parent == ts )
count++;
}
if( !count )
ts->valid = false;
//check systems where the parent cent has left the PVS
//( local player entity is always valid )
if( ( centNum = CG_AttachmentCentNum( &ts->frontAttachment ) ) >= 0 &&
centNum != cg.snap->ps.clientNum )
{
trailSystem_t *tempTS = ts;
if( !cg_entities[ centNum ].valid )
CG_DestroyTrailSystem( &tempTS );
}
if( ( centNum = CG_AttachmentCentNum( &ts->backAttachment ) ) >= 0 &&
centNum != cg.snap->ps.clientNum )
{
trailSystem_t *tempTS = ts;
if( !cg_entities[ centNum ].valid )
CG_DestroyTrailSystem( &tempTS );
}
if( cg_debugTrails.integer >= 1 && !ts->valid )
CG_Printf( "TS %s garbage collected\n", ts->_class->name );
}
}
/*
===============
CG_GarbageCollectTrailSystems
Destroy inactive trail systems
===============
*/
static void CG_GarbageCollectTrailSystems()
{
int i, j, count;
trailSystem_t *ts;
trailBeam_t *tb;
int centNum;
for ( i = 0; i < MAX_TRAIL_SYSTEMS; i++ )
{
ts = &trailSystems[ i ];
count = 0;
//don't bother checking already invalid systems
if ( !ts->valid )
{
continue;
}
for ( j = 0; j < MAX_TRAIL_BEAMS; j++ )
{
tb = &trailBeams[ j ];
if ( tb->valid && tb->parent == ts )
{
count++;
}
}
if ( !count )
{
ts->valid = false;
}
//check systems where the parent cent has left the PVS
//( local player entity is always valid )
if ( ( centNum = CG_AttachmentCentNum( &ts->frontAttachment ) ) >= 0 &&
centNum != cg.snap->ps.clientNum )
{
trailSystem_t *tempTS = ts;
if ( !cg_entities[ centNum ].valid )
{
CG_DestroyTrailSystem( &tempTS );
}
}
if ( ( centNum = CG_AttachmentCentNum( &ts->backAttachment ) ) >= 0 &&
centNum != cg.snap->ps.clientNum )
{
trailSystem_t *tempTS = ts;
if ( !cg_entities[ centNum ].valid )
{
CG_DestroyTrailSystem( &tempTS );
}
}
// lifetime expired
if ( ts->destroyTime <= 0 && ts->class_->lifeTime &&
ts->birthTime + ts->class_->lifeTime < cg.time )
{
trailSystem_t *tempTS = ts;
CG_DestroyTrailSystem( &tempTS );
if ( cg_debugTrails.integer >= 1 )
{
Log::Debug( "TS %s expired (born %d, lives %d, now %d)",
ts->class_->name, ts->birthTime, ts->class_->lifeTime,
cg.time );
}
}
if ( cg_debugTrails.integer >= 1 && !ts->valid )
{
Log::Debug( "TS %s garbage collected", ts->class_->name );
}
}
}
/*
===============
CG_RenderBeam
Renders a beam
===============
*/
static void CG_RenderBeam( trailBeam_t *tb )
{
trailBeamNode_t *i = nullptr;
trailBeamNode_t *prev = nullptr;
trailBeamNode_t *next = nullptr;
vec3_t up;
polyVert_t verts[( MAX_TRAIL_BEAM_NODES - 1 ) * 4 ];
int numVerts = 0;
baseTrailBeam_t *btb;
trailSystem_t *ts;
baseTrailSystem_t *bts;
if ( !tb || !tb->nodes )
{
return;
}
btb = tb->class_;
ts = tb->parent;
bts = ts->class_;
if ( bts->thirdPersonOnly &&
( CG_AttachmentCentNum( &ts->frontAttachment ) == cg.snap->ps.clientNum ||
CG_AttachmentCentNum( &ts->backAttachment ) == cg.snap->ps.clientNum ) &&
!cg.renderingThirdPerson )
{
return;
}
CG_CalculateBeamNodeProperties( tb );
i = tb->nodes;
do
{
prev = i->prev;
next = i->next;
if ( prev && next )
{
//this node has two neighbours
GetPerpendicularViewVector( cg.refdef.vieworg, next->position, prev->position, up );
}
else if ( !prev && next )
{
//this is the front
GetPerpendicularViewVector( cg.refdef.vieworg, next->position, i->position, up );
}
else if ( prev && !next )
{
//this is the back
GetPerpendicularViewVector( cg.refdef.vieworg, i->position, prev->position, up );
}
else
{
break;
}
if ( prev )
{
VectorMA( i->position, i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 1.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
VectorMA( i->position, -i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 0.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
}
if ( next )
{
VectorMA( i->position, -i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 0.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
VectorMA( i->position, i->halfWidth, up, verts[ numVerts ].xyz );
verts[ numVerts ].st[ 0 ] = i->textureCoord;
verts[ numVerts ].st[ 1 ] = 1.0f;
if ( btb->realLight )
{
CG_LightVertex( verts[ numVerts ].xyz, i->alpha, verts[ numVerts ].modulate );
}
else
{
VectorCopy( i->color, verts[ numVerts ].modulate );
verts[ numVerts ].modulate[ 3 ] = i->alpha;
}
numVerts++;
}
if( btb->dynamicLight ) {
trap_R_AddLightToScene( i->position,
btb->dLightRadius,
3,
( float ) btb->dLightColor[ 0 ] / ( float ) 0xFF,
( float ) btb->dLightColor[ 1 ] / ( float ) 0xFF,
( float ) btb->dLightColor[ 2 ] / ( float ) 0xFF, 0, 0 );
}
i = i->next;
}
while ( i );
trap_R_AddPolysToScene( tb->class_->shader, 4, &verts[ 0 ], numVerts / 4 );
}
