refactor(assets): Optimize asset retrieval using array lookup

This refactors the asset management system to be more efficient and cleaner.

- Moved common GetAsset/DropAsset logic to src/util/asset_manager.cc.

- Changed retrieval to use an array of records (AssetRecord) for O(1) lookups instead of a switch statement.

- Updated asset_packer to generate only raw data and the record array.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/util/asset_manager.h b/src/util/asset_manager.h
new file mode 100644
index 0000000..1b5e510
--- /dev/null
+++ b/src/util/asset_manager.h
@@ -0,0 +1,19 @@
+// This file is part of the 64k demo project.
+// It defines the core structures and interface for asset management.
+// Used for efficient retrieval of embedded binary resources.
+
+#pragma once
+#include <cstddef>
+#include <cstdint>
+
+// Forward declaration of the generated enum
+enum class AssetId : uint16_t;
+
+struct AssetRecord {
+  const uint8_t *data;
+  size_t size;
+};
+
+// Generic interface
+const uint8_t *GetAsset(AssetId asset_id, size_t *out_size = nullptr);
+void DropAsset(AssetId asset_id, const uint8_t *asset);