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The-Powder-Toy/src/elements/prti.c

72 lines
2.0 KiB
C

#include <element.h>
/*these are the count vaules of where the particle gets stored, depending on where it came from
1 4 6
2 . 7
3 5 8
PRTO counts backwards, so that it will come out at the opposite place of where it came in
8 5 3
7 . 2
6 4 1
PRTO does +/-1 to the count, so it doesn't jam as easily
*/
int update_PRTI(UPDATE_FUNC_ARGS) {
int r, nnx, rx, ry, fe = 0;
int count =0;
parts[i].tmp = (int)((parts[i].temp-73.15f)/100+1);
if (parts[i].tmp>=CHANNELS) parts[i].tmp = CHANNELS-1;
else if (parts[i].tmp<0) parts[i].tmp = 0;
for (rx=-1; rx<2; rx++)
for (ry=-1; ry<2; ry++)
if (x+rx>=0 && y+ry>0 && x+rx<XRES && y+ry<YRES && (rx || ry))
{
r = pmap[y+ry][x+rx];
count ++;
if (!r)
fe = 1;
if ((r>>8)>=NPART || !r)
continue;
if ((r&0xFF)==PT_SPRK || ((r&0xFF)!=PT_PRTI && (r&0xFF)!=PT_PRTO && (ptypes[r&0xFF].falldown!= 0 || ptypes[r&0xFF].state == ST_GAS)))
for ( nnx=0; nnx<80; nnx++)
if (!portal[parts[i].tmp][count-1][nnx])
{
portal[parts[i].tmp][count-1][nnx] = parts[r>>8].type;
portaltemp[parts[i].tmp][count-1][nnx] = parts[r>>8].temp;
portalctype[parts[i].tmp][count-1][nnx] = parts[r>>8].ctype;
if ((r&0xFF)==PT_SPRK)
part_change_type(r>>8,x+rx,y+ry,parts[r>>8].ctype);
else
kill_part(r>>8);
break;
}
}
if(fe){
if(!parts[i].life) parts[i].life = rand();
if(!parts[i].ctype) parts[i].life = rand();
int orbd[4] = {0, 0, 0, 0}; //Orbital distances
int orbl[4] = {0, 0, 0, 0}; //Orbital locations
orbitalparts_get(parts[i].life, parts[i].ctype, orbd, orbl);
for(r = 0; r < 4; r++){
if(orbd[r]>1){
orbd[r] -= 12;
if(orbd[r]<1){
orbd[r] = (rand()%128)+128;
orbl[r] = rand()%255;
} else {
orbl[r] += 2;
orbl[r] = orbl[r]%255;
}
} else {
orbd[r] = (rand()%128)+128;
orbl[r] = rand()%255;
}
}
orbitalparts_set(&parts[i].life, &parts[i].ctype, orbd, orbl);
} else {
parts[i].life = 0;
parts[i].ctype = 0;
}
return 0;
}