The-Powder-Toy/src/simulation/elements/FIRW.cpp
2021-02-15 21:24:44 +01:00

126 lines
2.9 KiB
C++

#include "simulation/ElementCommon.h"
#include "hmap.h"
static int update(UPDATE_FUNC_ARGS);
static int graphics(GRAPHICS_FUNC_ARGS);
void Element::Element_FIRW()
{
Identifier = "DEFAULT_PT_FIRW";
Name = "FIRW";
Colour = PIXPACK(0xFFA040);
MenuVisible = 1;
MenuSection = SC_EXPLOSIVE;
Enabled = 1;
Advection = 0.2f;
AirDrag = 0.01f * CFDS;
AirLoss = 0.96f;
Loss = 0.95f;
Collision = -0.1f;
Gravity = 0.1f;
Diffusion = 0.00f;
HotAir = 0.000f * CFDS;
Falldown = 1;
Flammable = 0;
Explosive = 0;
Meltable = 0;
Hardness = 30;
Weight = 55;
HeatConduct = 70;
Description = "Fireworks! Colorful, set off by fire.";
Properties = TYPE_PART|PROP_LIFE_DEC;
LowPressure = IPL;
LowPressureTransition = NT;
HighPressure = IPH;
HighPressureTransition = NT;
LowTemperature = ITL;
LowTemperatureTransition = NT;
HighTemperature = ITH;
HighTemperatureTransition = NT;
Update = &update;
Graphics = &graphics;
}
static int update(UPDATE_FUNC_ARGS)
{
int r, rx, ry, rt, np;
if (parts[i].tmp<=0) {
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;
rt = TYP(r);
if (rt==PT_FIRE||rt==PT_PLSM||rt==PT_THDR)
{
float gx, gy, multiplier;
sim->GetGravityField(x, y, sim->elements[PT_FIRW].Gravity, 1.0f, gx, gy);
if (gx*gx+gy*gy < 0.001f)
{
float angle = RNG::Ref().between(0, 6283) * 0.001f;//(in radians, between 0 and 2*pi)
gx += sinf(angle)*sim->elements[PT_FIRW].Gravity*0.5f;
gy += cosf(angle)*sim->elements[PT_FIRW].Gravity*0.5f;
}
parts[i].tmp = 1;
parts[i].life = RNG::Ref().between(20, 29);
multiplier = (parts[i].life+20)*0.2f/sqrtf(gx*gx+gy*gy);
parts[i].vx -= gx*multiplier;
parts[i].vy -= gy*multiplier;
return 0;
}
}
}
else if (parts[i].tmp==1) {
if (parts[i].life<=0) {
parts[i].tmp=2;
} else {
parts[i].flags &= ~FLAG_STAGNANT;
}
}
else //if (parts[i].tmp>=2)
{
float angle, magnitude;
int caddress = RNG::Ref().between(0, 199) * 3;
int n;
unsigned col = (((firw_data[caddress]))<<16) | (((firw_data[caddress+1]))<<8) | ((firw_data[caddress+2]));
for (n=0; n<40; n++)
{
np = sim->create_part(-3, x, y, PT_EMBR);
if (np>-1)
{
magnitude = RNG::Ref().between(40, 99) * 0.05f;
angle = RNG::Ref().between(0, 6283) * 0.001f;//(in radians, between 0 and 2*pi)
parts[np].vx = parts[i].vx*0.5f + cosf(angle)*magnitude;
parts[np].vy = parts[i].vy*0.5f + sinf(angle)*magnitude;
parts[np].ctype = col;
parts[np].tmp = 1;
parts[np].life = RNG::Ref().between(70, 109);
parts[np].temp = float(RNG::Ref().between(5750, 6249));
parts[np].dcolour = parts[i].dcolour;
}
}
sim->pv[y/CELL][x/CELL] += 8.0f;
sim->kill_part(i);
return 1;
}
return 0;
}
static int graphics(GRAPHICS_FUNC_ARGS)
{
if(cpart->tmp > 0)
{
*pixel_mode |= PMODE_GLOW;
}
return 0;
}