/*
===============
CG_AddSmokeJunc
returns the index of the trail junction created
===============
*/
int CG_AddSmokeJunc(int headJuncIndex, qhandle_t shader, vec3_t pos, int trailLife, float alpha, float startWidth, float endWidth)
{
#define ST_RATIO 4.0 // sprite image: width / height
trailJunc_t *j, *headJunc;
if(headJuncIndex > 0)
{
headJunc = &trailJuncs[headJuncIndex - 1];
if(!headJunc->inuse)
{
headJunc = NULL;
}
}
else
{
headJunc = NULL;
}
j = CG_SpawnTrailJunc(headJunc);
if(!j)
{
return 0;
}
// setup the trail junction
j->shader = shader;
j->sType = STYPE_REPEAT;
VectorCopy(pos, j->pos);
j->flags = TJFL_FADEIN;
j->spawnTime = cg.time;
j->endTime = cg.time + trailLife;
// VectorSet(j->colorStart, 0.2, 0.2, 0.2);
VectorSet(j->colorStart, 0.0, 0.0, 0.0);
// VectorSet(j->colorEnd, 0.1, 0.1, 0.1);
VectorSet(j->colorEnd, 0.0, 0.0, 0.0);
j->alphaStart = alpha;
j->alphaEnd = 0.0;
j->widthStart = startWidth;
j->widthEnd = endWidth;
if(headJunc)
{
j->sTex = headJunc->sTex + ((Distance(headJunc->pos, pos) / ST_RATIO) / j->widthEnd);
}
else
{
// first junction, so this will become the "tail" very soon, make it fade out
j->sTex = 0;
j->alphaStart = 0.0;
j->alphaEnd = 0.0;
}
return ((int)(j - trailJuncs) + 1);
}
/*
===============
CG_AddTrailJunc
returns the index of the trail junction created
Used for generic trails
===============
*/
int CG_AddTrailJunc(int headJuncIndex, qhandle_t shader, int spawnTime, int sType, vec3_t pos, int trailLife, float alphaStart, float alphaEnd, float startWidth, float endWidth, int flags, vec3_t colorStart, vec3_t colorEnd, float sRatio, float animSpeed)
{
trailJunc_t *j, *headJunc;
if (headJuncIndex < 0 || headJuncIndex >= MAX_TRAILJUNCS) {
return 0;
}
if (headJuncIndex > 0) {
headJunc = &trailJuncs[headJuncIndex-1];
if (!headJunc->inuse)
headJunc = NULL;
}
else
headJunc = NULL;
j = CG_SpawnTrailJunc(headJunc);
if (!j) {
// CG_Printf("couldnt spawn trail junc\n");
return 0;
}
if (alphaStart > 1.0) alphaStart = 1.0;
if (alphaStart < 0.0) alphaStart = 0.0;
if (alphaEnd > 1.0) alphaEnd = 1.0;
if (alphaEnd < 0.0) alphaEnd = 0.0;
// setup the trail junction
j->shader = shader;
j->sType = sType;
VectorCopy( pos, j->pos );
j->flags = flags;
j->spawnTime = spawnTime;
j->endTime = spawnTime + trailLife;
VectorCopy( colorStart, j->colorStart );
VectorCopy( colorEnd, j->colorEnd );
j->alphaStart = alphaStart;
j->alphaEnd = alphaEnd;
j->widthStart = startWidth;
j->widthEnd = endWidth;
if (sType == STYPE_REPEAT) {
if (headJunc) {
j->sTex = headJunc->sTex + ((Distance( headJunc->pos, pos ) / sRatio) / j->widthEnd);
} else {
// FIXME: need a way to specify offset timing
j->sTex = (animSpeed * (1.0 - ((float)(cg.time%1000) / 1000.0))) / (sRatio);
// j->sTex = 0;
}
}
return ((int)(j - trailJuncs) + 1);
}
/*
===============
CG_AddSparkJunc
returns the index of the trail junction created
===============
*/
int CG_AddSparkJunc(int headJuncIndex, void *usedby, qhandle_t shader, vec3_t pos, int trailLife, float alphaStart,
float alphaEnd, float startWidth, float endWidth)
{
trailJunc_t *j, *headJunc;
if(headJuncIndex < 0 || headJuncIndex >= MAX_TRAILJUNCS)
{
return 0;
}
if(headJuncIndex > 0)
{
headJunc = &trailJuncs[headJuncIndex - 1];
// rain - zinx's trail fix
if(!headJunc->inuse || headJunc->usedby != usedby)
{
headJunc = NULL;
}
}
else
{
headJunc = NULL;
}
j = CG_SpawnTrailJunc(headJunc);
if(!j)
{
return 0;
}
j->usedby = usedby;
// setup the trail junction
j->shader = shader;
j->sType = STYPE_STRETCH;
VectorCopy(pos, j->pos);
j->flags = TJFL_NOCULL; // don't worry about fading up close
j->spawnTime = cg.time;
j->endTime = cg.time + trailLife;
VectorSet(j->colorStart, 1.0, 0.8 + 0.2 * alphaStart, 0.4 + 0.4 * alphaStart);
VectorSet(j->colorEnd, 1.0, 0.8 + 0.2 * alphaEnd, 0.4 + 0.4 * alphaEnd);
// VectorScale( j->colorStart, alphaStart, j->colorStart );
// VectorScale( j->colorEnd, alphaEnd, j->colorEnd );
j->alphaStart = alphaStart * 2;
j->alphaEnd = alphaEnd * 2;
// j->alphaStart = 1.0;
// j->alphaEnd = 1.0;
j->widthStart = startWidth;
j->widthEnd = endWidth;
return ((int)(j - trailJuncs) + 1);
}
/*
===============
CG_AddTrailJunc
returns the index of the trail junction created
Used for generic trails
===============
*/
int CG_AddTrailJunc(int headJuncIndex, void *usedby, qhandle_t shader, int spawnTime, int sType, vec3_t pos, int trailLife, float alphaStart, float alphaEnd, float startWidth, float endWidth, int flags, vec3_t colorStart, vec3_t colorEnd, float sRatio, float animSpeed) {
trailJunc_t *j, *headJunc;
if (headJuncIndex < 0 || headJuncIndex >= MAX_TRAILJUNCS) {
return 0;
}
if (headJuncIndex > 0) {
headJunc = &trailJuncs[headJuncIndex - 1];
// rain - zinx's trail fix
if (!headJunc->inuse || headJunc->usedby != usedby) {
headJunc = NULL;
}
} else {
headJunc = NULL;
}
j = CG_SpawnTrailJunc(headJunc);
if (!j) {
return 0;
}
// rain - zinx's trail fix - mark who's using this trail so that
// we can handle the someone-else-stole-our-trail case
j->usedby = usedby;
if (alphaStart > 1.0) {
alphaStart = 1.0;
}
if (alphaStart < 0.0) {
alphaStart = 0.0;
}
if (alphaEnd > 1.0) {
alphaEnd = 1.0;
}
if (alphaEnd < 0.0) {
alphaEnd = 0.0;
}
// setup the trail junction
j->shader = shader;
j->sType = sType;
VectorCopy(pos, j->pos);
j->flags = flags;
j->spawnTime = spawnTime;
j->endTime = spawnTime + trailLife;
VectorCopy(colorStart, j->colorStart);
VectorCopy(colorEnd, j->colorEnd);
j->alphaStart = alphaStart;
j->alphaEnd = alphaEnd;
j->widthStart = startWidth;
j->widthEnd = endWidth;
if (sType == STYPE_REPEAT) {
if (headJunc) {
j->sTex = headJunc->sTex + ((Distance(headJunc->pos, pos) / sRatio) / j->widthEnd);
} else {
// FIXME: need a way to specify offset timing
j->sTex = (animSpeed * (1.0 - ((float)(cg.time % 1000) / 1000.0))) / (sRatio);
}
}
return (int)(j - trailJuncs) + 1;
}
