merge `loek/scripts`

1 files changed, 48 insertions, 0 deletions

diff --git a/src/crepe/manager/ResourceManager.h b/src/crepe/manager/ResourceManager.h
new file mode 100644
index 0000000..e7e6abc
--- /dev/null
+++ b/src/crepe/manager/ResourceManager.h
@@ -0,0 +1,48 @@
+#pragma once
+
+#include <memory>
+#include <unordered_map>
+
+#include "../Resource.h"
+#include "../api/Asset.h"
+
+#include "Manager.h"
+
+namespace crepe {
+
+/**
+ * \brief The ResourceManager is responsible for storing and managing assets over
+ * multiple scenes.
+ * 
+ * The ResourceManager ensures that assets are loaded once and can be accessed
+ * across different scenes. It caches assets to avoid reloading them every time
+ * a scene is loaded. Assets are retained in memory until the ResourceManager is
+ * destroyed, at which point the cached assets are cleared.
+ */
+class ResourceManager : public Manager {
+public:
+	ResourceManager(Mediator & mediator);
+	virtual ~ResourceManager(); // dbg_trace
+
+private:
+	struct CacheEntry {
+		std::unique_ptr<Resource> resource = nullptr;
+		bool persistent = false;
+	};
+	//! A cache that holds all the assets, accessible by their file path, over multiple scenes.
+	std::unordered_map<const Asset, CacheEntry> resources;
+	CacheEntry & get_entry(const Asset & asset);
+
+public:
+	void set_persistent(const Asset & asset, bool persistent);
+
+	template <typename Resource>
+	Resource & get(const Asset & asset);
+
+	void clear();
+	void clear_all();
+};
+
+} // namespace crepe
+
+#include "ResourceManager.hpp"