The-Powder-Toy/src/elements/phot.cpp

#include "simulation/Element.h"

int update_PHOT(UPDATE_FUNC_ARGS) {
	int r, rt, rx, ry;
	float rr, rrr;
	parts[i].pavg[0] = x;
	parts[i].pavg[1] = y;
	if (!(parts[i].ctype&0x3FFFFFFF)) {
		sim->kill_part(i);
		return 1;
	}
	if (1>rand()%10) update_PYRO(UPDATE_FUNC_SUBCALL_ARGS);
	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];
				if (!r)
					continue;
				if ((r&0xFF)==PT_ISOZ && 5>(rand()%2000))
				{
					parts[i].vx *= 0.90;
					parts[i].vy *= 0.90;
					sim->create_part(r>>8, x+rx, y+ry, PT_PHOT);
					rrr = (rand()%360)*3.14159f/180.0f;
					rr = (rand()%128+128)/127.0f;
					parts[r>>8].vx = rr*cosf(rrr);
					parts[r>>8].vy = rr*sinf(rrr);
					sim->pv[y/CELL][x/CELL] -= 15.0f * CFDS;
				}
				if ((r&0xFF)==PT_ISZS && 5>(rand()%2000))
				{
					parts[i].vx *= 0.90;
					parts[i].vy *= 0.90;
					sim->create_part(r>>8, x+rx, y+ry, PT_PHOT);
					rr = (rand()%228+128)/127.0f;
					rrr = (rand()%360)*3.14159f/180.0f;
					parts[r>>8].vx = rr*cosf(rrr);
					parts[r>>8].vy = rr*sinf(rrr);
					sim->pv[y/CELL][x/CELL] -= 15.0f * CFDS;
				}
			}
	r = pmap[y][x];
	if((r&0xFF) == PT_QRTZ && r)// && parts[i].ctype==0x3FFFFFFF)
	{
		float a = (rand()%360)*3.14159f/180.0f;
		parts[i].vx = 3.0f*cosf(a);
		parts[i].vy = 3.0f*sinf(a);
		if(parts[i].ctype == 0x3FFFFFFF)
			parts[i].ctype = 0x1F<<(rand()%26);
		parts[i].life++; //Delay death
	}
	//r = pmap[y][x];
	//rt = r&0xFF;
	/*if (rt==PT_CLNE || rt==PT_PCLN || rt==PT_BCLN || rt==PT_PBCN) {
		if (!parts[r>>8].ctype)
			parts[r>>8].ctype = PT_PHOT;
	}*/

	return 0;
}

int graphics_PHOT(GRAPHICS_FUNC_ARGS)
{
	int x = 0;
	*colr = *colg = *colb = 0;
	for (x=0; x<12; x++) {
		*colr += (cpart->ctype >> (x+18)) & 1;
		*colb += (cpart->ctype >>  x)     & 1;
	}
	for (x=0; x<12; x++)
		*colg += (cpart->ctype >> (x+9))  & 1;
	x = 624/(*colr+*colg+*colb+1);
	*colr *= x;
	*colg *= x;
	*colb *= x;

	*firea = 100;
	*firer = *colr;
	*fireg = *colg;
	*fireb = *colb;

	*pixel_mode |= FIRE_ADD;
	return 0;
}