mirror of https://github.com/AxioDL/metaforce.git
154 lines
3.5 KiB
C++
154 lines
3.5 KiB
C++
#include "CColorElement.hpp"
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#include "CParticleGlobals.hpp"
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#include "CRandom16.hpp"
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#include <math.h>
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namespace Retro
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{
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CCEKeyframeEmitter::CCEKeyframeEmitter(CInputStream& in)
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{
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x4_percent = in.readUint32Big();
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x8_unk1 = in.readUint32Big();
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xc_loop = in.readBool();
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xd_unk2 = in.readBool();
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x10_loopEnd = in.readUint32Big();
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x14_loopStart = in.readUint32Big();
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u32 count = in.readUint32Big();
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x18_keys.reserve(count);
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for (u32 i=0 ; i<count ; ++i)
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x18_keys.push_back(in.readVec4fBig());
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}
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bool CCEKeyframeEmitter::GetValue(int frame, Zeus::CColor& valOut) const
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{
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if (!x4_percent)
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{
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int emitterTime = CParticleGlobals::g_EmitterTime;
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int calcKey = emitterTime;
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if (xc_loop)
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{
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if (emitterTime >= x10_loopEnd)
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{
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int v1 = emitterTime - x14_loopStart;
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int v2 = x10_loopEnd - x14_loopStart;
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calcKey = v1 % v2;
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calcKey += x14_loopStart;
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}
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}
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else
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{
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int v1 = x10_loopEnd - 1;
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if (v1 < emitterTime)
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calcKey = v1;
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}
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valOut = x18_keys[calcKey];
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}
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else
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{
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int ltPerc = CParticleGlobals::g_ParticleLifetimePercentage;
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float ltPercRem = CParticleGlobals::g_ParticleLifetimePercentageRemainder;
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if (ltPerc == 100)
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valOut = x18_keys[100];
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else
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valOut = ltPercRem * x18_keys[ltPerc+1] + (1.0f - ltPercRem) * x18_keys[ltPerc];
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}
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return false;
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}
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bool CCEConstant::GetValue(int frame, Zeus::CColor& valOut) const
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{
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float a, b, c, d;
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x4_a->GetValue(frame, a);
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x8_b->GetValue(frame, b);
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xc_c->GetValue(frame, c);
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x10_d->GetValue(frame, d);
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valOut = Zeus::CColor(a, b, c, d);
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return false;
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}
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bool CCEFastConstant::GetValue(int frame, Zeus::CColor& valOut) const
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{
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valOut = x4_val;
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return false;
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}
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bool CCETimeChain::GetValue(int frame, Zeus::CColor& valOut) const
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{
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int v;
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xc_swFrame->GetValue(frame, v);
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if (frame >= v)
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return x8_b->GetValue(frame, valOut);
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else
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return x4_a->GetValue(frame, valOut);
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}
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bool CCEFadeEnd::GetValue(int frame, Zeus::CColor& valOut) const
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{
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float c;
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xc_startFrame->GetValue(frame, c);
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if (frame < c)
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{
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x4_a->GetValue(frame, valOut);
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return false;
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}
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float d;
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x10_endFrame->GetValue(frame, d);
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Zeus::CColor colA;
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Zeus::CColor colB;
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x4_a->GetValue(frame, colA);
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x8_b->GetValue(frame, colB);
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float t = (frame - c) / (d - c);
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valOut = Zeus::CColor::lerp(colA, colB, t);
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return false;
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}
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bool CCEFade::GetValue(int frame, Zeus::CColor& valOut) const
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{
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float c;
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xc_startFrame->GetValue(frame, c);
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float t = frame / c;
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if (t > 1.f)
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{
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x8_b->GetValue(frame, valOut);
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return false;
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}
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Zeus::CColor colA;
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Zeus::CColor colB;
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x4_a->GetValue(frame, colA);
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x8_b->GetValue(frame, colB);
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valOut = Zeus::CColor::lerp(colA, colB, t);
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return false;
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}
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bool CCEPulse::GetValue(int frame, Zeus::CColor& valOut) const
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{
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int a, b;
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x4_aDuration->GetValue(frame, a);
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x8_bDuration->GetValue(frame, b);
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int cv = std::max(1, a + b + 1);
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if (b >= 1)
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{
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int cv2 = frame % cv;
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if (cv2 >= a)
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x10_bVal->GetValue(frame, valOut);
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else
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xc_aVal->GetValue(frame, valOut);
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}
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else
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xc_aVal->GetValue(frame, valOut);
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return false;
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}
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}
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