EvpackTerrainLoader.h

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#pragma once
#include "common/Export.h"
 
 
#include "asset/EvpackResourceReader.h"
#include "procgen/SpatialData.h"
#include "procgen/heightmap/Heightmap.h"
 
namespace eve::asset_procgen {
 
struct TerrainAssetLoadLimits {
    std::uint32_t maximumDimension = 32768;
    std::uint64_t maximumSamples = 268'435'456;
    std::uint64_t maximumDecodedBytes = 1024ull * 1024ull * 1024ull;
};
 
struct LoadedTerrain {
    AssetRef                       asset;
    procgen::Heightmap             heightmap;
    procgen::SpatialData           spatial;
    float                          spacingX = 1.f;
    float                          spacingZ = 1.f;
    asset::EvpackVariantSelection  variant;
};
 
class EVENGINE_API_ORCHESTRATION EvpackTerrainLoader {
public:
    explicit EvpackTerrainLoader(const asset::EvpackResourceReader& reader) noexcept
        : reader_(reader) {}
 
    [[nodiscard]] Result<LoadedTerrain> load(
        const AssetRef& terrain, const asset::EvpackCapabilities& capabilities,
        const TerrainAssetLoadLimits& limits = {}) const;
 
private:
    const asset::EvpackResourceReader& reader_;
};
 
}  // namespace eve::asset_procgen