metaforce/Runtime/Particle/CColorElement.cpp

146 lines
3.5 KiB
C++

#include "Runtime/Particle/CColorElement.hpp"
#include "Runtime/CRandom16.hpp"
#include "Runtime/Particle/CElementGen.hpp"
#include "Runtime/Particle/CGenDescription.hpp"
#include "Runtime/Particle/CParticleGlobals.hpp"
#include <zeus/Math.hpp>
/* Documentation at: https://wiki.axiodl.com/w/Particle_Script#Color_Elements */
namespace metaforce {
CCEKeyframeEmitter::CCEKeyframeEmitter(CInputStream& in) {
x4_percent = in.ReadLong();
x8_unk1 = in.ReadLong();
xc_loop = in.ReadBool();
xd_unk2 = in.ReadBool();
x10_loopEnd = in.ReadLong();
x14_loopStart = in.ReadLong();
const u32 count = in.ReadLong();
x18_keys.reserve(count);
for (u32 i = 0; i < count; ++i) {
x18_keys.emplace_back(in.Get<zeus::CColor>());
}
}
bool CCEKeyframeEmitter::GetValue([[maybe_unused]] int frame, zeus::CColor& valOut) const {
if (!x4_percent) {
int emitterTime = CParticleGlobals::instance()->m_EmitterTime;
int calcKey = emitterTime;
if (xc_loop) {
if (emitterTime >= x10_loopEnd) {
int v1 = emitterTime - x14_loopStart;
int v2 = x10_loopEnd - x14_loopStart;
calcKey = v1 % v2;
calcKey += x14_loopStart;
}
} else {
int v1 = x10_loopEnd - 1;
if (v1 < emitterTime)
calcKey = v1;
}
valOut = x18_keys[calcKey];
} else {
int ltPerc = CParticleGlobals::instance()->m_ParticleLifetimePercentage;
float ltPercRem = CParticleGlobals::instance()->m_ParticleLifetimePercentageRemainder;
if (ltPerc == 100)
valOut = x18_keys[100];
else
valOut = ltPercRem * x18_keys[ltPerc + 1] + (1.0f - ltPercRem) * x18_keys[ltPerc];
}
return false;
}
bool CCEConstant::GetValue(int frame, zeus::CColor& valOut) const {
float r, g, b, a;
x4_r->GetValue(frame, r);
x8_g->GetValue(frame, g);
xc_b->GetValue(frame, b);
x10_a->GetValue(frame, a);
valOut = zeus::CColor(r, g, b, a);
return false;
}
bool CCEFastConstant::GetValue([[maybe_unused]] int frame, zeus::CColor& valOut) const {
valOut = x4_val;
return false;
}
bool CCETimeChain::GetValue(int frame, zeus::CColor& valOut) const {
int v;
xc_swFrame->GetValue(frame, v);
if (frame < v) {
return x4_a->GetValue(frame, valOut);
} else {
return x8_b->GetValue(frame - v, valOut);
}
}
bool CCEFadeEnd::GetValue(int frame, zeus::CColor& valOut) const {
float c;
xc_startFrame->GetValue(frame, c);
if (frame < c) {
x4_a->GetValue(frame, valOut);
return false;
}
float d;
x10_endFrame->GetValue(frame, d);
zeus::CColor colA;
zeus::CColor colB;
x4_a->GetValue(frame, colA);
x8_b->GetValue(frame, colB);
float t = (frame - c) / (d - c);
valOut = zeus::CColor::lerp(colA, colB, t);
return false;
}
bool CCEFade::GetValue(int frame, zeus::CColor& valOut) const {
float c;
xc_endFrame->GetValue(frame, c);
float t = frame / c;
if (t > 1.f) {
x8_b->GetValue(frame, valOut);
return false;
}
zeus::CColor colA;
zeus::CColor colB;
x4_a->GetValue(frame, colA);
x8_b->GetValue(frame, colB);
valOut = zeus::CColor::lerp(colA, colB, t);
return false;
}
bool CCEPulse::GetValue(int frame, zeus::CColor& valOut) const {
int a, b;
x4_aDuration->GetValue(frame, a);
x8_bDuration->GetValue(frame, b);
int cv = a + b + 1;
if (cv < 0) {
cv = 1;
}
if (b < 1 || frame % cv <= a) {
xc_aVal->GetValue(frame, valOut);
} else {
x10_bVal->GetValue(frame, valOut);
}
return false;
}
bool CCEParticleColor::GetValue(int /*frame*/, zeus::CColor& colorOut) const {
colorOut = CElementGen::g_currentParticle->x34_color;
return false;
}
} // namespace metaforce