feat(asset_manager): Implement array-based caching

- Refactored asset manager to use a static array for caching, improving performance and memory efficiency.
- Updated asset_packer to correctly generate ASSET_LAST_ID for array sizing.
- Modified asset_manager.h to use a forward declaration for AssetId.
- Updated asset_manager.cc to use the conditional include for generated asset headers.
- Added a test case in test_assets to verify the array-based cache and ASSET_LAST_ID logic.

1 files changed, 2 insertions, 0 deletions

diff --git a/tools/asset_packer.cc b/tools/asset_packer.cc
index c803c02..e606b94 100644
--- a/tools/asset_packer.cc
+++ b/tools/asset_packer.cc
@@ -112,6 +112,8 @@ int main(int argc, char* argv[]) {
     ++asset_id_counter;
   }
 
+  // Add ASSET_LAST_ID at the end
+  assets_h_file << "  ASSET_LAST_ID = " << asset_id_counter << "\n";
   assets_h_file << "};\n\n";
   assets_h_file << "#include \"util/asset_manager.h\"\n";
   assets_h_file.close();