#include <element.h>


int create_n_parts(int n, int x, int y, float vx, float vy, float temp, int t)//testing a new deut create part
{
	int i, c;
	n = (n/50);
	if (n<1) {
		n = 1;
	}
	if (n>340) {
		n = 340;
	}
	if (x<0 || y<0 || x>=XRES || y>=YRES || t<0 || t>=PT_NUM)
		return -1;

	for (c=0; c<n; c++) {
		float r = (rand()%128+128)/127.0f;
		float a = (rand()%360)*M_PI/180.0f;
		if (pfree == -1)
			return -1;
		i = pfree;
		pfree = parts[i].life;

		parts[i].x = (float)x;
		parts[i].y = (float)y;
		parts[i].type = t;
		parts[i].life = rand()%480+480;
		parts[i].vx = r*cosf(a);
		parts[i].vy = r*sinf(a);
		parts[i].ctype = 0;
		parts[i].temp = temp;
		parts[i].tmp = 0;
		if (t!=PT_STKM&&t!=PT_STKM2 && t!=PT_PHOT && t!=PT_NEUT && !pmap[y][x])
			pmap[y][x] = t|(i<<8);
		else if ((t==PT_PHOT||t==PT_NEUT) && !photons[y][x])
			photons[y][x] = t|(i<<8);

		pv[y/CELL][x/CELL] += 6.0f * CFDS;
	}
	return 0;
}

int update_NEUT(UPDATE_FUNC_ARGS) {
	int r, rx, ry, rt;
	int pressureFactor = 3 + (int)pv[y/CELL][x/CELL];
	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>>8)>=NPART || !r)
					continue;
				if ((r&0xFF)==PT_WATR || (r&0xFF)==PT_ICEI || (r&0xFF)==PT_SNOW)
				{
					parts[i].vx *= 0.995;
					parts[i].vy *= 0.995;
				}
				if ((r&0xFF)==PT_PLUT && pressureFactor>(rand()%1000))
				{
					if (33>rand()%100)
					{
						create_part(r>>8, x+rx, y+ry, rand()%3 ? PT_LAVA : PT_URAN);
						parts[r>>8].temp = MAX_TEMP;
						if (parts[r>>8].type==PT_LAVA) {
							parts[r>>8].tmp = 100;
							parts[r>>8].ctype = PT_PLUT;
						}
					}
					else
					{
						create_part(r>>8, x+rx, y+ry, PT_NEUT);
						parts[r>>8].vx = 0.25f*parts[r>>8].vx + parts[i].vx;
						parts[r>>8].vy = 0.25f*parts[r>>8].vy + parts[i].vy;
					}
					pv[y/CELL][x/CELL] += 10.0f * CFDS; //Used to be 2, some people said nukes weren't powerful enough
					update_PYRO(UPDATE_FUNC_SUBCALL_ARGS);
				}
#ifdef SDEUT
				else if ((r&0xFF)==PT_DEUT && (pressureFactor+1+(parts[r>>8].life/100))>(rand()%1000))
				{
					create_n_parts(parts[r>>8].life, x+rx, y+ry, parts[i].vx, parts[i].vy, restrict_flt(parts[r>>8].temp + parts[r>>8].life*500, MIN_TEMP, MAX_TEMP), PT_NEUT);
					kill_part(r>>8);
				}
#else
				else if ((r&0xFF)==PT_DEUT && (pressureFactor+1)>(rand()%1000))
				{
					create_part(r>>8, x+rx, y+ry, PT_NEUT);
					parts[r>>8].vx = 0.25f*parts[r>>8].vx + parts[i].vx;
					parts[r>>8].vy = 0.25f*parts[r>>8].vy + parts[i].vy;
					if (parts[r>>8].life>0)
					{
						parts[r>>8].life --;
						parts[r>>8].temp = restrict_flt(parts[r>>8].temp + parts[r>>8].life*17, MIN_TEMP, MAX_TEMP);
						pv[y/CELL][x/CELL] += 6.0f * CFDS;
					}
					else
						kill_part(r>>8);
				}
#endif
				else if ((r&0xFF)==PT_GUNP && 15>(rand()%1000))
					part_change_type(r>>8,x+rx,y+ry,PT_DUST);
				else if ((r&0xFF)==PT_DYST && 15>(rand()%1000))
					part_change_type(r>>8,x+rx,y+ry,PT_YEST);
				else if ((r&0xFF)==PT_YEST)
					part_change_type(r>>8,x+rx,y+ry,PT_DYST);
				else if ((r&0xFF)==PT_WATR && 15>(rand()%100))
					part_change_type(r>>8,x+rx,y+ry,PT_DSTW);
				else if ((r&0xFF)==PT_PLEX && 15>(rand()%1000))
					part_change_type(r>>8,x+rx,y+ry,PT_GOO);
				else if ((r&0xFF)==PT_NITR && 15>(rand()%1000))
					part_change_type(r>>8,x+rx,y+ry,PT_DESL);
				else if ((r&0xFF)==PT_PLNT && 5>(rand()%100))
					create_part(r>>8, x+rx, y+ry, PT_WOOD);
				else if ((r&0xFF)==PT_DESL && 15>(rand()%1000))
					part_change_type(r>>8,x+rx,y+ry,PT_GAS);
				else if ((r&0xFF)==PT_COAL && 5>(rand()%100))
					create_part(r>>8, x+rx, y+ry, PT_WOOD);
				else if ((r&0xFF)==PT_DUST && 5>(rand()%100))
					part_change_type(r>>8, x+rx, y+ry, PT_FWRK);
				else if ((r&0xFF)==PT_FWRK && 5>(rand()%100))
					parts[r>>8].ctype = PT_DUST;
				else if ((r&0xFF)==PT_ACID && 5>(rand()%100))
					create_part(r>>8, x+rx, y+ry, PT_ISOZ);
				/*if(parts[r>>8].type>1 && parts[r>>8].type!=PT_NEUT && parts[r>>8].type-1!=PT_NEUT && parts[r>>8].type-1!=PT_STKM &&
				  (ptypes[parts[r>>8].type-1].menusection==SC_LIQUID||
				  ptypes[parts[r>>8].type-1].menusection==SC_EXPLOSIVE||
				  ptypes[parts[r>>8].type-1].menusection==SC_GAS||
				  ptypes[parts[r>>8].type-1].menusection==SC_POWDERS) && 15>(rand()%1000))
				  parts[r>>8].type--;*/
			}
	return 0;
}