metaforce/Runtime/Particle/CModVectorElement.cpp

101 lines
2.1 KiB
C++

#include "CModVectorElement.hpp"
#include "CParticleGlobals.hpp"
#include "CRandom16.hpp"
#include <math.h>
namespace Retro
{
bool CMVEImplosion::GetValue(int frame, Zeus::CVector3f& pVel, Zeus::CVector3f& pPos) const
{
Zeus::CVector3f av;
x4_implPoint->GetValue(frame, av);
Zeus::CVector3f dv = av - pPos;
float dvm = dv.magnitude();
float c;
xc_maxMag->GetValue(frame, c);
if (dvm > c)
return false;
float d;
x10_minMag->GetValue(frame, d);
if (x14_enableMinMag && dvm < d)
return false;
if (0.f == dvm)
return false;
float b;
x8_magScale->GetValue(frame, b);
pVel += Zeus::CVector3f(b / dvm) * dv;
return false;
}
bool CMVEExponentialImplosion::GetValue(int frame, Zeus::CVector3f& pVel, Zeus::CVector3f& pPos) const
{
Zeus::CVector3f av;
x4_implPoint->GetValue(frame, av);
Zeus::CVector3f dv = av - pPos;
float dvm = dv.magnitude();
float c;
xc_maxMag->GetValue(frame, c);
if (dvm > c)
return false;
float d;
x10_minMag->GetValue(frame, d);
if (x14_enableMinMag && dvm < d)
return false;
if (0.f == dvm)
return false;
float b;
x8_magScale->GetValue(frame, b);
pVel += Zeus::CVector3f(b) * dv;
return false;
}
bool CMVELinearImplosion::GetValue(int frame, Zeus::CVector3f& pVel, Zeus::CVector3f& pPos) const
{
Zeus::CVector3f av;
x4_implPoint->GetValue(frame, av);
Zeus::CVector3f dv = av - pPos;
float dvm = dv.magnitude();
float c;
xc_maxMag->GetValue(frame, c);
if (dvm > c)
return false;
float d;
x10_minMag->GetValue(frame, d);
if (x14_enableMinMag && dvm < d)
return false;
if (0.f == dvm)
return false;
float b;
x8_magScale->GetValue(frame, b);
pVel = Zeus::CVector3f(b / dvm) * dv;
return false;
}
bool CMVETimeChain::GetValue(int frame, Zeus::CVector3f& pVel, Zeus::CVector3f& pPos) const
{
int v;
xc_swFrame->GetValue(frame, v);
if (frame >= v)
return x8_b->GetValue(frame, pVel, pPos);
else
return x4_a->GetValue(frame, pVel, pPos);
}
}