voxel_node_utils.hpp

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#pragma once
#include <cstdint>
#include <memory>
#include <optional>
#include <string_view>
#include <toast/assets/asset_manager.hpp>
#include <toast/assets/assets.hpp>
#include <toast/voxel/assets/voxel_model.hpp>
#include <toast/voxel/procedural_pool.hpp>
#include <toast/voxel/voxel_volume.hpp>
 
namespace toast::_detail {

enum : uint8_t {
  k_message_outside = 40,
  k_message_misaligned = 41,
};

template<typename T>
[[nodiscard]]
auto assetOfType(const assets::Handle<T>& handle, std::string_view type) -> const T* {
  if (!handle.hasValue()) {
    return nullptr;
  }
  const assets::Asset& asset = static_cast<const assets::HandleBase&>(handle).get();
  return asset.type() == type ? static_cast<const T*>(&asset) : nullptr;
}

[[nodiscard]]
inline auto instantiateModel(const assets::VoxelModel& model) -> std::unique_ptr<voxel::Volume> {
  std::optional<voxel::Volume> instance = model.instantiate(voxel::proceduralBrickPool());
  if (!instance.has_value()) {
    return nullptr;
  }
  return std::make_unique<voxel::Volume>(std::move(*instance));
}
 
}