add resource interface

engine/include/fishbone/file.h

@@ -13,11 +13,12 @@ namespace fishbone {
 		std::ofstream ofs;
 
 	    public:
+		File();
 		File(std::string path, std::string type);
 		~File();
 
-		size_t read(void* buffer, size_t size);
-		size_t write(const void* buffer, size_t size);
+		virtual size_t read(void* buffer, size_t size);
+		virtual size_t write(const void* buffer, size_t size);
 
 		size_t size;
 		bool   good;

engine/include/fishbone/foundation.h

@@ -7,5 +7,6 @@
 #include <fishbone/thread.h>
 #include <fishbone/file.h>
 #include <fishbone/window.h>
+#include <fishbone/resource.h>
 
 #endif

engine/include/fishbone/resource.h

@@ -0,0 +1,21 @@
+#ifndef __FISHBONE_THREAD_H__
+#define __FISHBONE_THREAD_H__
+
+namespace fishbone {
+	class Resource;
+}; // namespace fishbone
+
+#include <fishbone/machdep.h>
+#include <fishbone/file.h>
+
+namespace fishbone {
+	class Resource {
+	    public:
+		fishbone::File* open(std::string path);
+
+		Resource(std::string path);
+		~Resource();
+	};
+}; // namespace fishbone
+
+#endif