LightingShaderWaterImplementation.h

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#pragma once
 
#include <string>
 
#include <tdme/tdme.h>
#include <tdme/engine/subsystems/lighting/fwd-tdme.h>
#include <tdme/engine/subsystems/lighting/LightingShaderBaseImplementation.h>
#include <tdme/engine/subsystems/renderer/fwd-tdme.h>
 
using tdme::engine::subsystems::lighting::LightingShaderBaseImplementation;
using tdme::engine::subsystems::renderer::Renderer;
 
/**
 * Lighting shader implementation
 * @author Andreas Drewke
 */
class tdme::engine::subsystems::lighting::LightingShaderWaterImplementation: public LightingShaderBaseImplementation
{
public:
    static constexpr int WAVES_MAX { 4 };
 
    // forbid class copy
    FORBID_CLASS_COPY(LightingShaderWaterImplementation)
 
    /**
     * Public constructor
     * @param renderer renderer
     */
    LightingShaderWaterImplementation(Renderer* renderer);
 
    /**
     * @return if supported by renderer
     * @param renderer renderer
     */
    static bool isSupported(Renderer* renderer);
 
    // overridden methods
    virtual const string getId() override;
    virtual void initialize() override;
    virtual void registerShader() override;
    virtual void useProgram(Engine* engine, int contextIdx) override;
    virtual void updateMatrices(Renderer* renderer, int contextIdx) override;
    virtual void updateShaderParameters(Renderer* renderer, int contextIdx) override;
 
protected:
    int32_t uniformWaterHeight { -1 };
    int32_t uniformTime { -1 };
    int32_t uniformWaterWaves { -1 };
    array<int32_t, WAVES_MAX> uniformWaterAmplitude;
    array<int32_t, WAVES_MAX> uniformWaterWaveLength;
    array<int32_t, WAVES_MAX> uniformWaterSpeed;
    array<int32_t, WAVES_MAX> uniformWaterDirection;
    int32_t uniformModelMatrix { -1 };
    float time { 0.0f };
    array<float, WAVES_MAX> angle;
};