The Powder Toy

donttouchmydart3

glow can have a ctype of:

C5
THRM
ICE
DRAY
LOVE
LOLZ
FIRE
DUST

minecraft-physics

This post has been removed: Image only post

FeynmanLogomaker

It can actually have any ctype. I think it's used to determine color, but I'm not sure.

jacksonmj

GLOW ctype changes according to the pressure, and determines the green component of its colour (temperature = red component, velocity = blue component).

https://github.com/simtr/The-Powder-Toy/blob/c68e4b1393f92fadfe4cf4b6dcca212414dd8646/src/simulation/elements/GLOW.cpp#L68-L85

donttouchmydart3

#include "simulation/Elements.h"
	//#TPT-Directive ElementClass Element_GLOW PT_GLOW 66
	Element_GLST::Element_GLST()
	{
	Identifier = "DEFAULT_PT_GLST";
	Name = "GLST";
	Colour = PIXPACK(0x445464);
	MenuVisible = 1;
	MenuSection = SC_POWDER;
	Enabled = 1;

	Advection = 0.3f;
	AirDrag = 0.02f * CFDS;
	AirLoss = 0.98f;
	Loss = 0.80f;
	Collision = 0.0f;
	Gravity = 0.15f;
	Diffusion = 0.00f;
	HotAir = 0.000f * CFDS;
	Falldown = 2;

	Flammable = 1;
	Explosive = 0;
	Meltable = 0;
	Hardness = 4;

	Weight = 65;

	Temperature = R_TEMP+20.0f+273.15f;
	HeatConduct = 36;
	Description = "Glow, Glows under pressure.";

	State = ST_POWDER;
	Properties = TYPE_POWDER\|PROP_LIFE_DEC;

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

	Update = &Element_GLOW::update;
	Graphics = &Element_GLOW::graphics;
	}

	//#TPT-Directive ElementHeader Element_GLOW static int update(UPDATE_FUNC_ARGS)
	int Element_GLOW::update(UPDATE_FUNC_ARGS)
	{
	int r, rx, ry;
	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 ((r&0xFF)==PT_WATR && !(rand()%400))
	{
	sim->kill_part(i);
	sim->part_change_type(r>>8,x+rx,y+ry,PT_DEUT);
	parts[r>>8].life = 10;
	return 1;
	}
	}
	parts[i].ctype = sim->pv[y/CELL][x/CELL]*16;
	parts[i].tmp = abs((int)((sim->vx[y/CELL][x/CELL]+sim->vy[y/CELL][x/CELL])16.0f)) + abs((int)((parts[i].vx+parts[i].vy)64.0f));

	return 0;
	}


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

	{
	*firer = restrict_flt(cpart->temp-(275.13f+32.0f), 0, 128)/50.0f;
	*fireg = restrict_flt(cpart->ctype, 0, 128)/50.0f;
	*fireb = restrict_flt(cpart->tmp, 0, 128)/50.0f;

	*colr = restrict_flt(64.0f+cpart->temp-(275.13f+32.0f), 0, 255);
	*colg = restrict_flt(64.0f+cpart->ctype, 0, 255);
	*colb = restrict_flt(64.0f+cpart->tmp, 0, 255);

	*pixel_mode \|= FIRE_ADD;
	return 0;
	}


	Element_GLST::~Element_GLST() {}

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weird glow ctypes