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Process PHOT dcolour into ctype

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Ksawi 2023-01-08 20:41:34 +01:00 committed by GitHub
parent 8fde75cadf
commit 47139b1541
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 103 additions and 16 deletions
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119
src/simulation/elements/PHOT.cpp
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@ -4,6 +4,7 @@ int Element_FIRE_update(UPDATE_FUNC_ARGS);
static int update(UPDATE_FUNC_ARGS);
static int graphics(GRAPHICS_FUNC_ARGS);
static void create(ELEMENT_CREATE_FUNC_ARGS);
static int colourToWavelength(int cr, int cg, int cb);
void Element::Element_PHOT()
{
@ -56,6 +57,36 @@ void Element::Element_PHOT()
static int update(UPDATE_FUNC_ARGS)
{
// process dcolour into ctype (and vice versa)
int cr, cg, cb;
if (parts[i].dcolour != (unsigned int)parts[i].tmp)
{
cr = (parts[i].dcolour>>16)&0xFF;
cg = (parts[i].dcolour>>8)&0xFF;
cb = parts[i].dcolour&0xFF;
parts[i].ctype = colourToWavelength(cr, cg, cb);
parts[i].life = std::max(std::max(cr, cg), cb) * 680 / 255;
parts[i].life -= (0xFF-((parts[i].dcolour>>24)&0xFF)) * 680 / 255;
if (parts[i].life < 2)
parts[i].life = 2;
parts[i].dcolour = parts[i].tmp;
}
if (parts[i].ctype != parts[i].tmp2)
{
int xi;
for (xi=cr=cg=cb=0; xi<12; xi++) {
cr += (parts[i].ctype >> (xi+18)) & 1;
cg += (parts[i].ctype >> (xi+9)) & 1;
cb += (parts[i].ctype >> xi) & 1;
}
double xl = 255.0 / std::max(std::max(cr,cg),cb);
cr = round(cr * xl);
cg = round(cg * xl);
cb = round(cb * xl);
parts[i].tmp = parts[i].dcolour = 0xFF000000|(cr << 16)|(cg << 8)|cb;
parts[i].tmp2 = parts[i].ctype;
}
int r, rx, ry;
float rr, rrr;
if (!(parts[i].ctype&0x3FFFFFFF)) {
@ -118,14 +149,25 @@ static int update(UPDATE_FUNC_ARGS)
static int graphics(GRAPHICS_FUNC_ARGS)
{
int x = 0;
*colr = *colg = *colb = 0;
for (x=0; x<12; x++) {
*colr += (cpart->ctype >> (x+18)) & 1;
*colb += (cpart->ctype >> x) & 1;
if (cpart->ctype != cpart->tmp2)
{
int x;
for (x=*colr=*colg=*colb=0; x<12; x++) {
*colr += (cpart->ctype >> (x+18)) & 1;
*colg += (cpart->ctype >> (x+9)) & 1;
*colb += (cpart->ctype >> x) & 1;
}
double xl = 255.0 / std::max(std::max(*colr,*colg),*colb);
*colr = round(*colr * xl);
*colg = round(*colg * xl);
*colb = round(*colb * xl);
cpart->tmp = cpart->dcolour = 0xFF000000|(*colr << 16)|(*colg << 8)|*colb;
cpart->tmp2 = cpart->ctype;
}
for (x=0; x<12; x++)
*colg += (cpart->ctype >> (x+9)) & 1;
*colr = (cpart->dcolour>>16)&0xFF;
*colg = (cpart->dcolour>>8)&0xFF;
*colb = cpart->dcolour&0xFF;
bool tozero = false;
if (cpart->life <= 0)
@ -134,15 +176,11 @@ static int graphics(GRAPHICS_FUNC_ARGS)
cpart->life = 680;
}
x = std::min(cpart->life, 680) * 624/(*colr+*colg+*colb+1) / 680;
*colr *= x;
*colg *= x;
*colb *= x;
*firea = 100 * std::min(cpart->life, 680) / 680;
*firer = *colr;
*fireg = *colg;
*fireb = *colb;
double lm = std::min(cpart->life, 680) / 680.0;
*firer = *colr = round(*colr * lm);
*fireg = *colg = round(*colg * lm);
*fireb = *colb = round(*colb * lm);
*firea = round(100.0 * lm);
if (tozero)
cpart->life = 0;
@ -165,3 +203,52 @@ static void create(ELEMENT_CREATE_FUNC_ARGS)
if (TYP(sim->pmap[y][x]) == PT_FILT)
sim->parts[i].ctype = Element_FILT_interactWavelengths(&sim->parts[ID(sim->pmap[y][x])], sim->parts[i].ctype);
}
static int colourToWavelength(int cr, int cg, int cb)
{
float vl = std::max(std::max(cr, cg), cb);
if (vl == 0.0f)
vl = 1.0f;
int mt = 5;
int best = 1000;
int bestmt = mt;
int vr, vg, vb;
for (; mt < 13; mt++)
{
vr = (int)(cr / vl * mt + 0.5f);
vg = (int)(cg / vl * mt + 0.5f);
vb = (int)(cb / vl * mt + 0.5f);
if ((mt < 7 || vr + vb >= mt - 6) && (mt < 10 || vg >= std::max(vr - 9, 0) + std::max(vb - 9, 0)))
{
int diff = std::abs(cr - vr * vl / mt) + std::abs(cg - vg * vl / mt) + std::abs(cb - vb * vl / mt);
if (diff <= best)
{
best = diff;
bestmt = mt;
}
}
}
mt = bestmt;
vr = (int)(cr / vl * mt + 0.5f);
vg = (int)(cg / vl * mt + 0.5f);
vb = (int)(cb / vl * mt + 0.5f);
int shg = 0;
if (vg > 6)
{
shg = std::min(std::max(std::max(std::min(vr - vb, vg - 6), 6 - vg), -3), 3);
vr -= std::max(shg, 0);
vb += std::min(shg, 0);
}
else
{
if (vb > 9)
vg -= vb - 9;
if (vr > 9)
vg -= vr - 9;
}
unsigned int mask = ((1 << vr) - 1) << (30 - vr);
mask |= ((1 << vg) - 1) << (12 + shg);
mask |= ((1 << vb) - 1);
mask &= 0x3FFFFFFF;
return mask;
}