LifeFieldMaterialBinding.h

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#pragma once
#include "common/Export.h"
 
#include "common/Result.h"
#include "gpuagents/SurfaceField.h"
 
#include <glm/glm.hpp>
 
#include <cstdint>
#include <string>
#include <vector>
 
namespace eve::graphics {
class Graphics;
class Texture;
}  // namespace eve::graphics
 
namespace eve::gpuagents {
 
struct EVENGINE_API_DOMAINS LifeFieldMaterialUniforms {
    glm::vec3 origin{0.f};
    float     worldSize  = 1.f;
    int       resolution = 1;
    std::string lifeFieldSampler = "LifeFieldTexture";
    std::string surfaceDataSampler = "SurfaceDataTexture";
};
 
class EVENGINE_API_DOMAINS LifeFieldMaterialBinding {
public:
    LifeFieldMaterialBinding() = default;
 
    [[nodiscard("check life-field pack")]] Result<void> syncFrom(const SurfaceField& field);
 
    const LifeFieldMaterialUniforms& uniforms() const { return uniforms_; }
 
    const std::vector<std::uint8_t>& lifeFieldPixels() const { return lifePixels_; }
 
    const std::vector<std::uint8_t>& surfaceDataPixels() const { return surfacePixels_; }
 
    [[nodiscard("check life-field upload")]] Result<graphics::Texture*> uploadLifeField(graphics::Graphics* gfx);
 
    [[nodiscard("check surface-data upload")]] Result<graphics::Texture*> uploadSurfaceData(graphics::Graphics* gfx);
 
    [[nodiscard("check texture update")]] Result<void> updateTexture(graphics::Graphics* gfx,
                                                                     graphics::Texture* texture, bool lifeField) const;
 
private:
    LifeFieldMaterialUniforms uniforms_{};
    std::vector<std::uint8_t> lifePixels_;
    std::vector<std::uint8_t> surfacePixels_;
};
 
}  // namespace eve::gpuagents