add cartridge system

src/pxl8_cart.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "pxl8_types.h"
+
+typedef struct pxl8_cart {
+    char* base_path;
+    char* name;
+    void* archive_data;
+    size_t archive_size;
+    bool is_folder;
+    bool is_mounted;
+} pxl8_cart;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+pxl8_result pxl8_cart_load(pxl8_cart* cart, const char* path);
+void pxl8_cart_unload(pxl8_cart* cart);
+
+pxl8_result pxl8_cart_mount(pxl8_cart* cart);
+void pxl8_cart_unmount(pxl8_cart* cart);
+
+char* pxl8_cart_resolve_path(const pxl8_cart* cart, const char* relative_path);
+bool pxl8_cart_file_exists(const pxl8_cart* cart, const char* path);
+
+pxl8_cart* pxl8_cart_new(void);
+void pxl8_cart_destroy(pxl8_cart* cart);
+
+pxl8_result pxl8_cart_pack(const char* folder_path, const char* output_path);
+
+pxl8_cart* pxl8_cart_current(void);
+
+#ifdef __cplusplus
+}
+#endif