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

#include "simulation/Elements.h"
//#TPT-Directive ElementClass Element_SPNG PT_SPNG 90
Element_SPNG::Element_SPNG()
{
    Identifier = "DEFAULT_PT_SPNG";
    Name = "SPNG";
    Colour = PIXPACK(0xFFBE30);
    MenuVisible = 1;
    MenuSection = SC_SOLIDS;
    Enabled = 1;
    
    Advection = 0.00f;
    AirDrag = 0.00f * CFDS;
    AirLoss = 0.00f;
    Loss = 0.00f;
    Collision = 0.00f;
    Gravity = 0.0f;
    Diffusion = 0.00f;
    HotAir = 0.000f  * CFDS;
    Falldown = 0;
    
    Flammable = 20;
    Explosive = 0;
    Meltable = 1;
    Hardness = 30;
    
    Weight = 100;
    
    Temperature = R_TEMP+0.0f +273.15f;
    HeatConduct = 251;
    Description = "A sponge, absorbs water.";
    
    State = ST_SOLID;
    Properties = TYPE_SOLID;
    
    LowPressure = IPL;
    LowPressureTransition = NT;
    HighPressure = IPH;
    HighPressureTransition = NT;
    LowTemperature = ITL;
    LowTemperatureTransition = NT;
    HighTemperature = 2730.0f;
    HighTemperatureTransition = PT_FIRE;
    
    Update = &Element_SPNG::update;
    Graphics = &Element_SPNG::graphics;
}

//#TPT-Directive ElementHeader Element_SPNG static int update(UPDATE_FUNC_ARGS)
int Element_SPNG::update(UPDATE_FUNC_ARGS)
 {
	int r, trade, rx, ry, tmp, np;
	int limit = 50;
	if (parts[i].life<limit && sim->pv[y/CELL][x/CELL]<=3&&sim->pv[y/CELL][x/CELL]>=-3&&parts[i].temp<=374.0f)
	{
		int absorbChanceDenom = parts[i].life*1000/limit + 500;
		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_WATR || (r&0xFF)==PT_DSTW || (r&0xFF)==PT_FRZW) && parts[i].life<limit && 500>rand()%absorbChanceDenom)
					{
						parts[i].life++;
						sim->kill_part(r>>8);
					}
					if ((r&0xFF)==PT_SLTW && parts[i].life<limit && 50>rand()%absorbChanceDenom)
					{
						parts[i].life++;
						if (rand()%4)
							sim->kill_part(r>>8);
						else
							sim->part_change_type(r>>8, x+rx, y+ry, PT_SALT);
					}
					if ((r&0xFF)==PT_CBNW && parts[i].life<limit && 100>rand()%absorbChanceDenom)
					{
						parts[i].life++;
						sim->part_change_type(r>>8, x+rx, y+ry, PT_CO2);
					}
					if ((r&0xFF)==PT_PSTE && parts[i].life<limit && 20>rand()%absorbChanceDenom)
					{
						parts[i].life++;
						sim->create_part(r>>8, x+rx, y+ry, PT_CLST);
					}
				}
	}
	else
		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)&&parts[i].life>=1)//if nothing then create water
					{
						np = sim->create_part(-1,x+rx,y+ry,PT_WATR);
						if (np>-1) parts[i].life--;
					}
				}
	for ( trade = 0; trade<9; trade ++)
	{
		rx = rand()%5-2;
		ry = rand()%5-2;
		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_SPNG&&(parts[i].life>parts[r>>8].life)&&parts[i].life>0)//diffusion
			{
				tmp = parts[i].life - parts[r>>8].life;
				if (tmp ==1)
				{
					parts[r>>8].life ++;
					parts[i].life --;
					trade = 9;
				}
				else if (tmp>0)
				{
					parts[r>>8].life += tmp/2;
					parts[i].life -= tmp/2;
					trade = 9;
				}
			}
		}
	}
	tmp = 0;
	if (parts[i].life>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];
					if (!r)
						continue;
					if ((r&0xFF)==PT_FIRE)
					{
						tmp++;
						if (parts[r>>8].life>60)
							parts[r>>8].life -= parts[r>>8].life/60;
						else if (parts[r>>8].life>2)
							parts[r>>8].life--;
					}
				}
	}
	if (tmp && parts[i].life>3)
		parts[i].life -= parts[i].life/3;
	if (tmp>1)
		tmp = tmp/2;
	if (tmp || parts[i].temp>=374)
		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)&&parts[i].life>=1)//if nothing then create steam
					{
						np = sim->create_part(-1,x+rx,y+ry,PT_WTRV);
						if (np>-1)
						{
							parts[np].temp = parts[i].temp;
							tmp--;
							parts[i].life--;
							parts[i].temp -= 20.0f;
						}
					}
				}
	if (tmp>0)
	{
		if (parts[i].life>tmp)
			parts[i].life -= tmp;
		else
			parts[i].life = 0;
	}
	return 0;
}


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

{
	*colr -= cpart->life*15;
	*colg -= cpart->life*15;
	*colb -= cpart->life*15;
	if (*colr<=50)
		*colr = 50;
	if (*colg<=50)
		*colg = 50;
	if (*colb<=20)
		*colb = 20;
	return 0;
}


Element_SPNG::~Element_SPNG() {}