TerrainStamp.h

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#pragma once
 
#include "common/Result.h"
 
namespace eve::procgen {
class Heightmap;
 
enum class TerrainMaskBlend { Multiply, Maximum, Minimum, Add, Subtract };
 
enum class TerrainStampOperation { Raise, Lower, Blend, Set, Add, Subtract };
 
struct TerrainStampSettings {
    double                originX = 0, originZ = 0;
    double                spacingX = 1, spacingZ = 1;
    double                centerX = 0, centerZ = 0;
    double                width = 1, depth = 1, rotation = 0;
    float                 amplitude = 1, baseHeight = 0;
    float                 blendStrength = 0.5F;
    TerrainStampOperation operation     = TerrainStampOperation::Raise;
};
 
[[nodiscard]] EVENGINE_API_DOMAINS Result<int> blendTerrainMask(Heightmap& target, const Heightmap& source,
                                                                TerrainMaskBlend mode, float strength = 1,
                                                                bool invert = false);
 
[[nodiscard]] EVENGINE_API_DOMAINS Result<int> applyTerrainStamp(Heightmap& target, const Heightmap& stamp,
                                                                 const TerrainStampSettings& settings,
                                                                 const Heightmap&            localMask,
                                                                 const Heightmap&            globalMask);
}  // namespace eve::procgen