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particle trail fixes... hopefully 

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@50 fc73d0e0-1445-4013-8a0c-d673dee63da5
This commit is contained in:
TimeServ 2004-08-26 17:59:48 +00:00
parent 80d3e5c9c3
commit 816d331b91
2 changed files with 47 additions and 27 deletions
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70
engine/client/r_part.c
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@ -1865,13 +1865,12 @@ float R_RocketTrail (vec3_t start, vec3_t end, int type, float lastdistance)
{ {
vec3_t vec, right, up; vec3_t vec, right, up;
float len; float len;
int j; int tcount;
static int tcount;
particle_t *p; particle_t *p;
part_type_t *ptype = &part_type[type]; part_type_t *ptype = &part_type[type];
float veladd = -ptype->veladd; float veladd = -ptype->veladd;
float randvel = ptype->randomvel*2; float randvel = ptype->randomvel;
float step; float step;
float stop; float stop;
@ -1901,8 +1900,8 @@ float R_RocketTrail (vec3_t start, vec3_t end, int type, float lastdistance)
if (ptype->spawnmode == SM_SPIRAL) if (ptype->spawnmode == SM_SPIRAL)
{ {
VectorVectors(vec, right, up); VectorVectors(vec, right, up);
VectorScale(right, ptype->offsetspread, right); // VectorScale(right, ptype->offsetspread, right);
VectorScale(up, ptype->offsetspread, up); // VectorScale(up, ptype->offsetspread, up);
} }
stop = lastdistance + len; //when to stop stop = lastdistance + len; //when to stop
@ -1931,6 +1930,9 @@ float R_RocketTrail (vec3_t start, vec3_t end, int type, float lastdistance)
p->color = 0; p->color = 0;
p->nextemit = particletime + ptype->emitstart - p->die; p->nextemit = particletime + ptype->emitstart - p->die;
if (ptype->spawnmode == SM_TRACER)
tcount = (int)(len * ptype->count);
if (ptype->colorindex >= 0) if (ptype->colorindex >= 0)
{ {
int cidx; int cidx;
@ -1962,42 +1964,60 @@ float R_RocketTrail (vec3_t start, vec3_t end, int type, float lastdistance)
switch(ptype->spawnmode) switch(ptype->spawnmode)
{ {
case SM_TRACER: case SM_TRACER:
VectorCopy(start, p->org);
tcount++;
if (tcount & 1) if (tcount & 1)
{ {
p->vel[0] = vec[1]*ptype->areaspread; p->vel[0] = vec[1]*ptype->offsetspread;
p->vel[1] = -vec[0]*ptype->areaspread; p->vel[1] = -vec[0]*ptype->offsetspread;
p->org[0] = vec[1]*ptype->areaspread;
p->org[1] = -vec[0]*ptype->areaspread;
} }
else else
{ {
p->vel[0] = -vec[1]*ptype->areaspread; p->vel[0] = -vec[1]*ptype->offsetspread;
p->vel[1] = vec[0]*ptype->areaspread; p->vel[1] = vec[0]*ptype->offsetspread;
p->org[0] = -vec[1]*ptype->areaspread;
p->org[1] = vec[0]*ptype->areaspread;
} }
p->vel[0] += vec[0]*veladd+crandom()*randvel; p->vel[0] += vec[0]*veladd+crandom()*randvel;
p->vel[1] += vec[1]*veladd+crandom()*randvel; p->vel[1] += vec[1]*veladd+crandom()*randvel;
p->vel[2] = vec[2]*veladd+crandom()*randvel; p->vel[2] = vec[2]*veladd+crandom()*randvel;
p->org[0] += start[0];
p->org[1] += start[1];
p->org[2] = start[2];
break; break;
case SM_SPIRAL: case SM_SPIRAL:
p->vel[0] = cos(len/50); {
p->vel[1] = sin(len/50); float tsin, tcos;
for (j=0 ; j<3 ; j++)
p->org[j] = start[j] + right[j]*p->vel[0] + up[j]*p->vel[1];
p->vel[0] = vec[0]*veladd+crandom()*randvel; tcos = cos(len/50)*ptype->areaspread;
p->vel[1] = vec[1]*veladd+crandom()*randvel; tsin = sin(len/50)*ptype->areaspread;
p->vel[2] = vec[2]*veladd+crandom()*randvel;
p->org[0] = start[0] + right[0]*tcos + up[0]*tsin;
p->org[1] = start[1] + right[1]*tcos + up[1]*tsin;
p->org[2] = start[2] + right[2]*tcos + up[2]*tsin;
tcos = cos(len/50)*ptype->offsetspread;
tsin = sin(len/50)*ptype->offsetspread;
p->vel[0] = vec[0]*veladd+crandom()*randvel + right[0]*tcos + up[0]*tsin;
p->vel[1] = vec[1]*veladd+crandom()*randvel + right[1]*tcos + up[1]*tsin;
p->vel[2] = vec[2]*veladd+crandom()*randvel + right[2]*tcos + up[2]*tsin;
}
break; break;
default: default:
p->org[0] = start[0] + crandom()*ptype->areaspread; p->org[0] = crandom();
p->org[1] = start[1] + crandom()*ptype->areaspread; p->org[1] = crandom();
p->org[2] = start[2] + crandom()*ptype->areaspreadvert; p->org[2] = crandom();
p->vel[0] = vec[0]*veladd+crandom()*randvel; p->vel[0] = vec[0]*veladd+crandom()*randvel + p->org[0]*ptype->offsetspread;
p->vel[1] = vec[1]*veladd+crandom()*randvel; p->vel[1] = vec[1]*veladd+crandom()*randvel + p->org[1]*ptype->offsetspread;
p->vel[2] = vec[2]*veladd+crandom()*randvel; p->vel[2] = vec[2]*veladd+crandom()*randvel + p->org[2]*ptype->offsetspreadvert;
p->org[0] = p->org[0]*ptype->areaspread + start[0];
p->org[1] = p->org[1]*ptype->areaspread + start[1];
p->org[2] = p->org[2]*ptype->areaspreadvert + start[2];
break; break;
} }

4
engine/client/r_partset.c
View File

@ -913,7 +913,7 @@ char *particle_set_faithful =
" alphachange 0\n" " alphachange 0\n"
" colorindex 52\n" " colorindex 52\n"
" citracer 1\n" " citracer 1\n"
" areaspread 30\n" " offsetspread 30\n"
" spawnmode tracer\n" " spawnmode tracer\n"
"}\n" "}\n"
"\n" "\n"
@ -927,7 +927,7 @@ char *particle_set_faithful =
" alphachange 0\n" " alphachange 0\n"
" colorindex 230\n" " colorindex 230\n"
" citracer 1\n" " citracer 1\n"
" areaspread 30\n" " offsetspread 30\n"
" spawnmode tracer\n" " spawnmode tracer\n"
"}\n" "}\n"
"\n" "\n"