#include <powder.h>

int update_PCLN(UPDATE_FUNC_ARGS) {
	int r;
	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_SPRK)
				{
					if (parts[r>>8].ctype==PT_PSCN)
						parts[i].life = 10;
					else if (parts[r>>8].ctype==PT_NSCN)
						parts[i].life = 9;
				}
				if ((r&0xFF)==PT_PCLN)
				{
					if (parts[i].life==10&&parts[r>>8].life<10&&parts[r>>8].life>0)
						parts[i].life = 9;
					else if (parts[i].life==0&&parts[r>>8].life==10)
						parts[i].life = 10;
				}
			}
	if (!parts[i].ctype)
		for (nx=-1; nx<2; nx++)
			for (ny=-1; ny<2; ny++)
				if (x+nx>=0 && y+ny>0 &&
				        x+nx<XRES && y+ny<YRES &&
				        pmap[y+ny][x+nx] &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_CLNE &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_PCLN &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_BCLN &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_SPRK &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_NSCN &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_PSCN &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_STKM &&
				        (pmap[y+ny][x+nx]&0xFF)!=PT_STKM2 &&
				        (pmap[y+ny][x+nx]&0xFF)!=0xFF)
					parts[i].ctype = pmap[y+ny][x+nx]&0xFF;
	if (parts[i].ctype && parts[i].life==10) {
		if (parts[i].ctype==PT_PHOT) {
			for (nx=-1; nx<2; nx++) {
				for (ny=-1; ny<2; ny++) {
					int r = create_part(-1, x+nx, y+ny, parts[i].ctype);
					if (r!=-1) {
						parts[r].vx = nx*3;
						parts[r].vy = ny*3;
					}
				}
			}
		}
		else if (ptypes[parts[i].ctype].properties&PROP_LIFE) {
			for (nx=-1; nx<2; nx++) {
				for (ny=-1; ny<2; ny++) {
					create_part(-1, x+nx, y+ny, parts[i].ctype);
				}
			}
		} else {
			create_part(-1, x+rand()%3-1, y+rand()%3-1, parts[i].ctype);
		}
	}
	return 0;
}