PcgBiomeController.h

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#pragma once
 
#include "common/Result.h"
#include "procgen/heightmap/PcgTerrainStreaming.h"
 
namespace eve::procgen {
 
enum class PcgBiomeLoadMode { Disabled = 0, EditorSelected = 1, EditorAlways = 2, RuntimeAlways = 3 };
 
struct PcgBiomeLoadingBounds {
    double centerX = 0.0;
    double centerY = 0.0;
    double centerZ = 0.0;
    double sizeX = 0.0;
    double sizeY = 0.0;
    double sizeZ = 0.0;
};
 
class EVENGINE_API_DOMAINS PcgBiomeController {
public:
    [[nodiscard]] Result<void> configure(double x, double y, double z, double range,
                                         double impostorLoadingRange, PcgBiomeLoadMode mode);
    [[nodiscard]] Result<void> fitToTerrain(double minX, double originY, double minZ,
                                            double sizeX, double sizeY, double sizeZ);
    [[nodiscard]] Result<void> fitToAllTerrains(double minX, double minY, double minZ,
                                                double sizeX, double sizeY, double sizeZ);
    [[nodiscard]] PcgTerrainStreamingTier tierAt(double x, double y, double z) const noexcept;
    [[nodiscard]] const PcgBiomeLoadingBounds& regularBounds() const noexcept { return regular_; }
    [[nodiscard]] const PcgBiomeLoadingBounds& impostorBounds() const noexcept { return impostor_; }
    [[nodiscard]] double range() const noexcept { return range_; }
    [[nodiscard]] PcgBiomeLoadMode loadMode() const noexcept { return mode_; }
 
private:
    [[nodiscard]] Result<void> publish(double x, double y, double z, double range,
                                       double impostorLoadingRange, PcgBiomeLoadMode mode);
 
    PcgBiomeLoadingBounds regular_{};
    PcgBiomeLoadingBounds impostor_{};
    double x_ = 0.0;
    double y_ = 0.0;
    double z_ = 0.0;
    double range_ = 0.0;
    double impostorLoadingRange_ = 0.0;
    PcgBiomeLoadMode mode_ = PcgBiomeLoadMode::Disabled;
};
 
}  // namespace eve::procgen