The-Powder-Toy/src/simulation/elements/EMP.cpp

#include "simulation/Elements.h"
//#TPT-Directive ElementClass Element_EMP PT_EMP 134
Element_EMP::Element_EMP()
{
	Identifier = "DEFAULT_PT_EMP";
	Name = "EMP";
	Colour = PIXPACK(0x66AAFF);
	MenuVisible = 1;
	MenuSection = SC_ELEC;
	Enabled = 1;
	
	Advection = 0.0f;
	AirDrag = 0.00f * CFDS;
	AirLoss = 0.90f;
	Loss = 0.00f;
	Collision = 0.0f;
	Gravity = 0.0f;
	Diffusion = 0.0f;
	HotAir = 0.0f	* CFDS;
	Falldown = 0;
	
	Flammable = 0;
	Explosive = 0;
	Meltable = 0;
	Hardness = 3;
	
	Weight = 100;
	
	Temperature = R_TEMP+0.0f	+273.15f;
	HeatConduct = 121;
	Description = "Electromagnetic pulse. Breaks activated electronics.";
	
	State = ST_SOLID;
	Properties = TYPE_SOLID|PROP_LIFE_DEC;
	
	LowPressure = IPL;
	LowPressureTransition = NT;
	HighPressure = IPH;
	HighPressureTransition = NT;
	LowTemperature = ITL;
	LowTemperatureTransition = NT;
	HighTemperature = ITH;
	HighTemperatureTransition = NT;
	
	Update = &Element_EMP::update;
	Graphics = &Element_EMP::graphics;
}

//#TPT-Directive ElementHeader Element_EMP static int update(UPDATE_FUNC_ARGS)
int Element_EMP::update(UPDATE_FUNC_ARGS)
{
	int r,rx,ry,t,n,nx,ny,ntype;
	if (parts[i].life)
		return 0;
	for (rx=-2; rx<3; rx++)
		for (ry=-2; ry<3; 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_SPRK && parts[r>>8].life>0 && parts[r>>8].life<4)
					goto ok;
			}
	return 0;
 ok:
	parts[i].life=220;
	sim->emp_decor += 3;
	if (sim->emp_decor > 40)
		sim->emp_decor = 40;
	for (r=0; r<=sim->parts_lastActiveIndex; r++)
	{
		t=parts[r].type;
		rx=parts[r].x;
		ry=parts[r].y;
		if (t==PT_SPRK || (t==PT_SWCH && parts[r].life!=0 && parts[r].life!=10) || (t==PT_WIRE && parts[r].ctype>0))
		{
			int is_elec=0;
			if (parts[r].ctype==PT_PSCN || parts[r].ctype==PT_NSCN || parts[r].ctype==PT_PTCT ||
			    parts[r].ctype==PT_NTCT || parts[r].ctype==PT_INST || parts[r].ctype==PT_SWCH || t==PT_WIRE || t==PT_SWCH)
			{
				is_elec=1;
				if (!(rand()%100))
					parts[r].temp = restrict_flt(parts[r].temp+3000.0f, MIN_TEMP, MAX_TEMP);
				if (!(rand()%80))
					sim->part_change_type(r, rx, ry, PT_BREC);
				else if (!(rand()%120))
					sim->part_change_type(r, rx, ry, PT_NTCT);
			}
			for (nx=-2; nx<3; nx++)
				for (ny=-2; ny<3; ny++)
					if (rx+nx>=0 && ry+ny>=0 && rx+nx<XRES && ry+ny<YRES && (rx || ry))
					{
						n = pmap[ry+ny][rx+nx];
						if (!n)
							continue;
						ntype = n&0xFF;
						//Some elements should only be affected by wire/swch, or by a spark on inst/semiconductor
						//So not affected by spark on metl, watr etc
						if (is_elec)
						{
							switch (ntype)
							{
							case PT_METL:
								if (!(rand()%280))
									parts[n>>8].temp = restrict_flt(parts[n>>8].temp+3000.0f, MIN_TEMP, MAX_TEMP);
								if (!(rand()%300))
									sim->part_change_type(n>>8, rx+nx, ry+ny, PT_BMTL);
								continue;
							case PT_BMTL:
								if (!(rand()%280))
									parts[n>>8].temp = restrict_flt(parts[n>>8].temp+3000.0f, MIN_TEMP, MAX_TEMP);
								if (!(rand()%160))
								{
									sim->part_change_type(n>>8, rx+nx, ry+ny, PT_BRMT);
									parts[n>>8].temp = restrict_flt(parts[n>>8].temp+1000.0f, MIN_TEMP, MAX_TEMP);
								}
								continue;
							case PT_WIFI:
								if (!(rand()%8))
								{
									//Randomise channel
									parts[n>>8].temp = rand()%MAX_TEMP;
								}
								if (!(rand()%16))
								{
									sim->create_part(n>>8, rx+nx, ry+ny, PT_BREC);
									parts[n>>8].temp = restrict_flt(parts[n>>8].temp+1000.0f, MIN_TEMP, MAX_TEMP);
								}
								continue;
							default:
								break;
							}
						}
						switch (ntype)
						{
						case PT_SWCH:
							if (!(rand()%100))
								sim->part_change_type(n>>8, rx+nx, ry+ny, PT_BREC);
							if (!(rand()%100))
								parts[n>>8].temp = restrict_flt(parts[n>>8].temp+2000.0f, MIN_TEMP, MAX_TEMP);
							break;
						case PT_ARAY:
							if (!(rand()%60))
							{
								sim->create_part(n>>8, rx+nx, ry+ny, PT_BREC);
								parts[n>>8].temp = restrict_flt(parts[n>>8].temp+1000.0f, MIN_TEMP, MAX_TEMP);
							}
							break;
						case PT_DLAY:
							if (!(rand()%70))
							{
								//Randomise delay
								parts[n>>8].temp = (rand()%256) + 273.15f;
							}
							break;
						default:
							break;
						}
					}
		}
	}
	return 0;
}


//#TPT-Directive ElementHeader Element_EMP static int graphics(GRAPHICS_FUNC_ARGS)
int Element_EMP::graphics(GRAPHICS_FUNC_ARGS)

{
	if(cpart->life)
	{
		*colr = cpart->life*1.5;
		*colg = cpart->life*1.5;
		*colb = 200-(cpart->life);
		if (*colr>255)
			*colr = 255;
		if (*colg>255)
			*colg = 255;
		if (*colb>255)
			*colb = 255;
		if (*colb<=0)
			*colb = 0;
	}
	return 0;
}


Element_EMP::~Element_EMP() {}