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#ifndef SHURIKENUTILS_H
#define SHURIKENUTILS_H
#include "ParticleSystemCommon.h"
#include "Runtime/Math/Vector2.h"
#include "Runtime/Math/Random/Random.h"
class Matrix4x4f;
struct ParticleSystemParticles;
struct ParticleSystemReadOnlyState;
struct ParticleSystemState;
struct ParticleSystemEmissionState;
struct ParticleSystemSubEmitterData;
inline float InverseLerpFast01 (const Vector2f& scaleOffset, float v)
{
return clamp01 (v * scaleOffset.x + scaleOffset.y);
}
inline float GenerateRandom(UInt32 randomIn)
{
Rand rand(randomIn);
return Random01(rand);
}
inline void GenerateRandom3(Vector3f& randomOut, UInt32 randomIn)
{
Rand rand(randomIn);
randomOut.x = Random01(rand);
randomOut.y = Random01(rand);
randomOut.z = Random01(rand);
}
inline UInt8 GenerateRandomByte (UInt32 seed)
{
Rand rand (seed);
return Rand::GetByteFromInt (rand.Get ());
}
UInt32 GetGlobalRandomSeed ();
void ResetGlobalRandomSeed ();
Vector2f CalculateInverseLerpOffsetScale (const Vector2f& range);
void KillParticle(const ParticleSystemReadOnlyState& roState, ParticleSystemState& state, ParticleSystemParticles& ps, size_t index, size_t& particleCount);
void RecordEmit(ParticleSystemEmissionState& emissionState, const ParticleSystemSubEmitterData& subEmitterData, const ParticleSystemReadOnlyState& roState, ParticleSystemState& state, ParticleSystemParticles& ps, ParticleSystemSubType type, int subEmitterIndex, size_t particleIndex, float t, float dt, float length);
bool GetTransformationMatrix(Matrix4x4f& output, const bool isSystemInWorld, const bool isCurveInWorld, const Matrix4x4f& localToWorld);
bool GetTransformationMatrices(Matrix4x4f& output, Matrix4x4f& outputInverse, const bool isSystemInWorld, const bool isCurveInWorld, const Matrix4x4f& localToWorld);
#endif // SHURIKENUTILS_H
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