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

#include "simulation/Elements.h"
//#TPT-Directive ElementClass Element_FRZZ PT_FRZZ 100
Element_FRZZ::Element_FRZZ()
{
    Identifier = "DEFAULT_PT_FRZZ";
    Name = "FRZZ";
    Colour = PIXPACK(0xC0E0FF);
    MenuVisible = 1;
    MenuSection = SC_POWDERS;
    Enabled = 1;
    
    Advection = 0.7f;
    AirDrag = 0.01f * CFDS;
    AirLoss = 0.96f;
    Loss = 0.90f;
    Collision = -0.1f;
    Gravity = 0.05f;
    Diffusion = 0.01f;
    HotAir = -0.00005f* CFDS;
    Falldown = 1;
    
    Flammable = 0;
    Explosive = 0;
    Meltable = 0;
    Hardness = 20;
    
    Weight = 50;
    
    Temperature = 253.15f;
    HeatConduct = 46;
    Description = "Freeze powder. When melted, forms ice that always cools. Spreads with regular water.";
    
    State = ST_SOLID;
    Properties = TYPE_PART;
    
    LowPressure = IPL;
    LowPressureTransition = NT;
    HighPressure = 1.8f;
    HighPressureTransition = PT_SNOW;
    LowTemperature = 50.0f;
    LowTemperatureTransition = PT_ICEI;
    HighTemperature = 273.15;
    HighTemperatureTransition = PT_WATR;
    
    Update = &Element_FRZZ::update;
    
}

//#TPT-Directive ElementHeader Element_FRZZ static int update(UPDATE_FUNC_ARGS)
int Element_FRZZ::update(UPDATE_FUNC_ARGS)
 {
	int r, rx, ry;
	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&&5>rand()%100)
				{
					sim->part_change_type(r>>8,x+rx,y+ry,PT_FRZW);
					parts[r>>8].life = 100;
					parts[i].type = PT_NONE;
				}

			}
	if (parts[i].type==PT_NONE) {
		sim->kill_part(i);
		return 1;
	}
	return 0;
}


Element_FRZZ::~Element_FRZZ() {}