PcgTerrainPhotoMode.h

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#pragma once
 
#include "common/Export.h"
#include "common/PcgPhotoModeApply.h"
#include "procgen/heightmap/TerrainMesh.h"
 
namespace eve::procgen {
struct PcgTerrainPhotoModeState {
    bool drawInstanced = true;
    float detailDensity = 0.5f;
    float detailDistance = 150.f;
    float pixelError = 5.f;
    float basemapDistance = 1024.f;
};
enum class PcgTerrainTextureTier { Detailed = 0, Basemap = 1 };
 
class EVENGINE_API_DOMAINS PcgTerrainPhotoModeAuthority final : public IPhotoModeFieldSink {
public:
    ~PcgTerrainPhotoModeAuthority() override;
    void setAuthority(bool enabled);
    const PcgTerrainPhotoModeState& state() const noexcept { return state_; }
    int selectLod(const Heightmap& heightmap, TerrainMeshSettings settings, int maxLod, float distance,
                  float viewportHeight, float verticalFovDegrees) const;
    PcgTerrainTextureTier textureTier(float distance) const noexcept;
    PhotoModeFieldAcceptance acceptsPhotoModeField(const PhotoModeAssignment& assignment) const noexcept override;
    [[nodiscard]] Result<void> applyPhotoModeField(const PhotoModeAssignment& assignment) override;
private:
    bool authority_ = false;
    PcgTerrainPhotoModeState state_{};
};
}