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particle field spawnparam2 changes starting degree for spiral trail 

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@2225 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
TimeServ 2006-04-18 23:11:44 +00:00
parent 8709f8ec1f
commit 81bd85742f
1 changed files with 5 additions and 2 deletions
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7
engine/client/r_part.c
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@ -2744,6 +2744,7 @@ static void P_ParticleTrailDraw (vec3_t startpos, vec3_t end, part_type_t *ptype
float step; float step;
float stop; float stop;
float tdegree = 2*M_PI/256; /* MSVC whine */ float tdegree = 2*M_PI/256; /* MSVC whine */
float sdegree = 0;
float nrfirst, nrlast; float nrfirst, nrlast;
VectorCopy(startpos, start); VectorCopy(startpos, start);
@ -2824,6 +2825,7 @@ static void P_ParticleTrailDraw (vec3_t startpos, vec3_t end, part_type_t *ptype
// add offset // add offset
start[2] += ptype->offsetup; start[2] += ptype->offsetup;
// spawn mode precalculations
if (ptype->spawnmode == SM_SPIRAL) if (ptype->spawnmode == SM_SPIRAL)
{ {
VectorVectors(vec, right, up); VectorVectors(vec, right, up);
@ -2831,6 +2833,7 @@ static void P_ParticleTrailDraw (vec3_t startpos, vec3_t end, part_type_t *ptype
// precalculate degree of rotation // precalculate degree of rotation
if (ptype->spawnparam1) if (ptype->spawnparam1)
tdegree = 2*M_PI/ptype->spawnparam1; /* distance per rotation inversed */ tdegree = 2*M_PI/ptype->spawnparam1; /* distance per rotation inversed */
sdegree = ptype->spawnparam2*(M_PI/180);
} }
else if (ptype->spawnmode == SM_CIRCLE) else if (ptype->spawnmode == SM_CIRCLE)
{ {
@ -3001,8 +3004,8 @@ static void P_ParticleTrailDraw (vec3_t startpos, vec3_t end, part_type_t *ptype
{ {
float tsin, tcos; float tsin, tcos;
tcos = cos(len*tdegree)*ptype->areaspread; tcos = cos(len*tdegree+sdegree)*ptype->areaspread;
tsin = sin(len*tdegree)*ptype->areaspread; tsin = sin(len*tdegree+sdegree)*ptype->areaspread;
p->org[0] = start[0] + right[0]*tcos + up[0]*tsin; p->org[0] = start[0] + right[0]*tcos + up[0]*tsin;
p->org[1] = start[1] + right[1]*tcos + up[1]*tsin; p->org[1] = start[1] + right[1]*tcos + up[1]*tsin;