/*
==========================
CG_RocketTrail
==========================
*/
static void CG_RocketTrail( centity_t *ent, const weaponInfo_t *wi ) {
int step;
vec3_t origin, lastPos;
int t;
int startTime;
entityState_t *es;
vec3_t up;
localEntity_t *smoke;
if ( cg_noProjectileTrail.integer ) {
return;
}
up[0] = 0;
up[1] = 0;
up[2] = 0;
step = 50;
es = &ent->currentState;
startTime = ent->trailTime;
t = step * ( (startTime + step) / step );
BG_EvaluateTrajectory( &es->pos, cg.time, origin );
// if object (e.g. grenade) is stationary, don't toss up smoke
if ( es->pos.trType == TR_STATIONARY ) {
ent->trailTime = cg.time;
return;
}
BG_EvaluateTrajectory( &es->pos, ent->trailTime, lastPos );
ent->trailTime = cg.time;
CG_BubbleTrail( lastPos, origin, ent );
for ( ; t <= ent->trailTime ; t += step ) {
BG_EvaluateTrajectory( &es->pos, t, lastPos );
smoke = CG_SmokePuff( lastPos, up,
wi->trailRadius,
1, 1, 1, 0.33f,
wi->wiTrailTime,
t,
0,
0,
cgs.media.smokePuffShader );
// use the optimized local entity add
smoke->leType = LE_SCALE_FADE;
}
}
/*
* CG_LeadBubbleTrail
*/
static void CG_LeadBubbleTrail( trace_t *tr, vec3_t water_start )
{
// if went through water, determine where the end and make a bubble trail
vec3_t dir, pos;
VectorSubtract( tr->endpos, water_start, dir );
VectorNormalize( dir );
VectorMA( tr->endpos, -2, dir, pos );
if( CG_PointContents( pos ) & MASK_WATER )
VectorCopy( pos, tr->endpos );
else
CG_Trace( tr, pos, vec3_origin, vec3_origin, water_start, tr->ent ? cg_entities[tr->ent].current.number : 0, MASK_WATER );
VectorAdd( water_start, tr->endpos, pos );
VectorScale( pos, 0.5, pos );
CG_BubbleTrail( water_start, tr->endpos, 32 );
}
