what code i have to use to make thing burn so that there will be more fire particles
i use this code right now but i want more flames else if

(t==PT_THRS)
{
for(nx=-2; nx<3; nx++)
for(ny=-2; ny<3; ny++)
if(x+nx>=0 && y+ny>0 && x+nx<XRES && y+ny<YRES && (nx || ny))
{
r = pmap[y+ny][x+nx];
if((r>>8)>=NPART || !r)
continue;
if(((r&0xFF)==PT_FIRE || (r&0xFF)==PT_PLSM || (r&0xFF)==PT_LAVA))
{
if(1>(rand()%100)) {
t = parts[i].type = PT_FIRE;
parts[i].ctype = PT_SMKE;
pt = parts[i].temp = 1500.0f;
pv[y/CELL][x/CELL] += 20000.0f;
} else {
t = parts[i].type = PT_SMKE;
parts[i].life = 400;
parts[i].ctype = PT_SMKE;
pt = parts[i].temp = 1500.0f;
parts[i].tmp = 420;
}
}
//if(t==PT_LO2 && (r&0xFF)==PT_O2 && 15>(rand()%10))
//t = parts[i].type = PT_O2;
}
}