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The-Powder-Toy/src/simulation/elements/GRAV.cpp
Simon Robertshaw d7a6b25a4b Experiment with generic "register" for life prop
Move PROP_LIFE to LifeSpec register to encode behaviour
2021-06-02 18:44:34 +01:00

120 lines
2.5 KiB
C++

#include "common/tpt-minmax.h"
#include "simulation/ElementCommon.h"
static int update(UPDATE_FUNC_ARGS);
static int graphics(GRAPHICS_FUNC_ARGS);
void Element::Element_GRAV()
{
Identifier = "DEFAULT_PT_GRAV";
Name = "GRAV";
Colour = PIXPACK(0x202020);
MenuVisible = 1;
MenuSection = SC_POWDERS;
Enabled = 1;
Advection = 0.7f;
AirDrag = 0.00f * CFDS;
AirLoss = 1.00f;
Loss = 1.00f;
Collision = 0.0f;
Gravity = 0.0f;
Diffusion = 0.00f;
HotAir = 0.000f * CFDS;
Falldown = 1;
Flammable = 10;
Explosive = 0;
Meltable = 0;
Hardness = 30;
Weight = 85;
HeatConduct = 70;
Description = "Very light dust. Changes colour based on velocity.";
Properties = TYPE_PART | PROP_LIFE_DEC;
LifeSpec = RSPEC_STORAGE_TYPE_NUMBER | RSPEC_BEHAVIOUR_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)
{
if (parts[i].vx*parts[i].vx + parts[i].vy*parts[i].vy >= 0.1f && RNG::Ref().chance(1, 512))
{
if (!parts[i].life)
parts[i].life = 48;
}
return 0;
}
static int graphics(GRAPHICS_FUNC_ARGS)
{
int GRAV_R, GRAV_B, GRAV_G, GRAV_R2, GRAV_B2, GRAV_G2;
GRAV_R = std::abs((ren->sim->currentTick%120)-60);
GRAV_G = std::abs(((ren->sim->currentTick+60)%120)-60);
GRAV_B = std::abs(((ren->sim->currentTick+120)%120)-60);
GRAV_R2 = std::abs((ren->sim->currentTick%60)-30);
GRAV_G2 = std::abs(((ren->sim->currentTick+30)%60)-30);
GRAV_B2 = std::abs(((ren->sim->currentTick+60)%60)-30);
*colr = 20;
*colg = 20;
*colb = 20;
if (cpart->vx>0)
{
*colr += int((cpart->vx)*GRAV_R);
*colg += int((cpart->vx)*GRAV_G);
*colb += int((cpart->vx)*GRAV_B);
}
if (cpart->vy>0)
{
*colr += int((cpart->vy)*GRAV_G);
*colg += int((cpart->vy)*GRAV_B);
*colb += int((cpart->vy)*GRAV_R);
}
if (cpart->vx<0)
{
*colr -= int((cpart->vx)*GRAV_B);
*colg -= int((cpart->vx)*GRAV_R);
*colb -= int((cpart->vx)*GRAV_G);
}
if (cpart->vy<0)
{
*colr -= int((cpart->vy)*GRAV_R2);
*colg -= int((cpart->vy)*GRAV_G2);
*colb -= int((cpart->vy)*GRAV_B2);
}
if (cpart->life)
{
*pixel_mode = FIRE_ADD | PMODE_ADD | PMODE_GLOW | PMODE_FLARE;
*firer = std::min(*colr * 3, 255);
*fireg = std::min(*colg * 3, 255);
*fireb = std::min(*colb * 3, 255);
*firea = (cpart->life+15)*4;
*cola = (cpart->life+15)*4;
}
else
*pixel_mode = PMODE_ADD;
return 0;
}