metaforce/Runtime/Particle/CParticleGlobals.hpp

#pragma once

#include "zeus/CVector3f.hpp"
#include "zeus/CVector4f.hpp"
#include "zeus/CMatrix4f.hpp"
#include "zeus/CColor.hpp"
#include "RetroTypes.hpp"
#include <array>

namespace urde
{
class CElementGen;
class CParticleGlobals
{
public:
    static int g_EmitterTime;
    static float g_EmitterTimeReal;
    static void SetEmitterTime(int frame)
    {
        g_EmitterTime = frame;
        g_EmitterTimeReal = frame;
    }

    static int g_ParticleLifetime;
    static float g_ParticleLifetimeReal;
    static void SetParticleLifetime(int frame)
    {
        g_ParticleLifetime = frame;
        g_ParticleLifetimeReal = frame;
    }

    static int g_ParticleLifetimePercentage;
    static float g_ParticleLifetimePercentageReal;
    static float g_ParticleLifetimePercentageRemainder;
    static void UpdateParticleLifetimeTweenValues(int frame)
    {
        float lt = g_ParticleLifetime != 0.0f ? g_ParticleLifetime : 1.0f;
        g_ParticleLifetimePercentageReal = 100.0f * frame / lt;
        g_ParticleLifetimePercentage = int(g_ParticleLifetimePercentageReal);
        g_ParticleLifetimePercentageRemainder = g_ParticleLifetimePercentageReal - g_ParticleLifetimePercentage;
        g_ParticleLifetimePercentage = zeus::clamp(0, g_ParticleLifetimePercentage, 100);
    }

    static const std::array<float, 8>* g_particleAccessParameters;

    struct SParticleSystem
    {
        FourCC x0_type;
        CElementGen* x4_system;
    };

    static SParticleSystem* g_currentParticleSystem;
};

struct SParticleInstanceTex
{
    zeus::CVector4f pos[4];
    zeus::CColor color;
    zeus::CVector2f uvs[4];
};
extern std::vector<SParticleInstanceTex> g_instTexData;

struct SParticleInstanceIndTex
{
    zeus::CVector4f pos[4];
    zeus::CColor color;
    zeus::CVector4f texrTindUVs[4];
    zeus::CVector4f sceneUVs;
};
extern std::vector<SParticleInstanceIndTex> g_instIndTexData;

struct SParticleInstanceNoTex
{
    zeus::CVector4f pos[4];
    zeus::CColor color;
};
extern std::vector<SParticleInstanceNoTex> g_instNoTexData;

struct SParticleUniforms
{
    zeus::CMatrix4f mvp;
    zeus::CColor moduColor;
};

}