fragment_extraction.hpp

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#pragma once
 
#include "component_classification.hpp"
 
#include <array>
#include <glm/glm.hpp>
#include <optional>
#include <toast/voxel/mass_accumulator.hpp>
#include <toast/voxel/palette.hpp>
#include <toast/voxel/voxel_volume.hpp>
 
namespace physics {
 
using DensityTable = std::array<uint32_t, voxel::k_palette_size>;
 
struct RemovedVoxels {
  voxel::MassMoments moments;
  uint32_t voxels = 0;
};
 
struct ExtractedFragment {
  voxel::Volume volume;
  glm::ivec3 offset;

  voxel::MassMoments moments;
  uint32_t voxels = 0;
};

[[nodiscard]]
auto extractFragmentVolume(voxel::Volume& source, const DetachedComponent& component, const DensityTable& density)
    -> std::optional<ExtractedFragment>;
 
void restoreFragment(voxel::Volume& source, voxel::Volume& fragment, glm::ivec3 offset);
 
auto discardComponent(voxel::Volume& source, const DetachedComponent& component, const DensityTable& density) -> RemovedVoxels;
 
}