NDMD.cpp

#include "simulation/ElementCommon.h"

#define FLAG_TICKED 0x0100

static int update(UPDATE_FUNC_ARGS);
static int graphics(GRAPHICS_FUNC_ARGS);
static void create(ELEMENT_CREATE_FUNC_ARGS);

void Element::Element_NDMD()
{
	Identifier = "DEFAULT_PT_NDMD";
	Name = "NDMD";
	Colour = PIXPACK(0xCCFFFF);
	MenuVisible = 1;
	MenuSection = SC_SOLIDS;
	Enabled = 1;

	Advection = 0.0f;
	AirDrag = 0.00f * CFDS;
	AirLoss = 0.90f;
	Loss = 0.00f;
	Collision = 0.0f;
	Gravity = 0.0f;
	Diffusion = 0.00f;
	HotAir = 0.000f	* CFDS;
	Falldown = 0;

	Flammable = 0;
	Explosive = 0;
	Meltable = 0;
	Hardness = 0;

	Weight = 100;

	HeatConduct = 186;
	Description = "Diamond. Very hard.";

	Properties = TYPE_SOLID;

	LowPressure = IPL;
	LowPressureTransition = NT;
	HighPressure = IPH;
	HighPressureTransition = NT;
	LowTemperature = ITL;
	LowTemperatureTransition = NT;
	HighTemperature = ITH;
	HighTemperatureTransition = NT;

    Update = &update;
	Graphics = &graphics;
	Create = &create;
}

static int update(UPDATE_FUNC_ARGS)
{
    int r, rx, ry;

    if(parts[i].temp > 1400) {
        float referenceTemp = parts[i].temp - 1400;

        for (rx=-1; rx<2; rx++)
            for (ry=-1; ry<2; ry++)
                if (BOUNDS_CHECK && (rx || ry))
                {
                    r = pmap[y+ry][x+rx];
                    if (!r)
                        continue;
                    if ((TYP(r)==PT_O2 || TYP(r)==PT_LO2) && RNG::Ref().chance(referenceTemp, 50000))
                    {
                        sim->part_change_type(i, x, y, PT_CO2);
                        sim->part_change_type(ID(r), x+rx, y+ry, PT_CO2);
                        sim->pv[y/CELL][x/CELL] += 0.5;
                    }
                }
    }

    if(parts[i].tmp2 > 0) {
        int flagged = parts[i].tmp2 & FLAG_TICKED; 
        if(!flagged) {
                parts[i].tmp2--;
                for (rx=-1; rx<2; rx++)
                    for (ry=-1; ry<2; ry++)
                        if (BOUNDS_CHECK && (rx || ry) && (abs(rx) + abs(ry) < 2 ))
                        {
                            r = pmap[y+ry][x+rx];
                            if (!r)
                                continue;
                            if (TYP(r)==PT_NDMD && parts[ID(r)].life < parts[i].life-1)
                            {
                                parts[ID(r)].tmp = parts[i].tmp;
                                parts[ID(r)].ctype = 0;
                                parts[ID(r)].life = parts[i].life-1;
                                parts[ID(r)].tmp2 = parts[i].tmp2 | FLAG_TICKED;
                            } else if(TYP(r)==PT_NDMD && parts[ID(r)].life > parts[i].life+2) {
                                parts[i].ctype = RNG::Ref().between(0, 8);
                            }
                        }
        } else {
            parts[i].tmp2 &= ~FLAG_TICKED;
        }
    }


    return 0;
}

static int graphics(GRAPHICS_FUNC_ARGS)
{
    float glowStart = 1000.0f;
    float glowEnd = 1800.0f;
    float diff = glowEnd - glowStart;

    int caddress = (cpart->tmp % 199) * 3;
    if(cpart->tmp > 400) {
        *colr = (unsigned char)ren->flm_data[caddress];
        *colg = (unsigned char)ren->flm_data[caddress+1];
	    *colb = (unsigned char)ren->flm_data[caddress+2];
    } else {
        *colr = (unsigned char)ren->plasma_data[caddress];
        *colg = (unsigned char)ren->plasma_data[caddress+1];
	    *colb = (unsigned char)ren->plasma_data[caddress+2];
    }

    if(cpart->temp > glowStart) {
        double gradv = 3.1415f/(2.0f*glowEnd-glowStart);
        int normalTemp = int((cpart->temp>glowEnd)?glowEnd-glowStart:cpart->temp-glowStart);
        *colr += int(sin(gradv*normalTemp) * 226.0f);
        *colg += int(sin(gradv*normalTemp*4.55f +3.14f) * 34.0f);
        *colb += int(sin(gradv*normalTemp*2.22f +3.14f) * 64.0f);

        *firea = normalTemp / (diff/64.0f);
        *firer += int(sin(gradv*normalTemp) * 226.0f);
        *fireg += int(sin(gradv*normalTemp*4.55f +3.14f) * 34.0f);
        *fireb += int(sin(gradv*normalTemp*2.22f +3.14f) * 64.0f);

        *pixel_mode |= FIRE_ADD;
    }

    if(cpart->ctype == 4) {
        *pixel_mode |= PMODE_FLARE;
    }

	return 0;
}

static void create(ELEMENT_CREATE_FUNC_ARGS)
{
	sim->parts[i].life = RNG::Ref().between(1, 1024);
	sim->parts[i].tmp = RNG::Ref().between(0, 600);
	sim->parts[i].tmp2 = RNG::Ref().between(0, 8);
}