entity extensions

1 files changed, 42 insertions, 0 deletions

diff --git a/src/core/extension.h b/src/core/extension.h
new file mode 100644
index 0000000..0b9ecad
--- /dev/null
+++ b/src/core/extension.h
@@ -0,0 +1,42 @@
+/*
+   core/extension.h
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#ifndef __INCLUDED_CORE_EXTENSION_H__
+#define __INCLUDED_CORE_EXTENSION_H__
+
+namespace core {
+	class Extension;
+}
+
+#include "core/entity.h"
+
+namespace core {
+
+/// a abstract base class for entity extensions
+class Extension {
+public:
+	/// extension types
+	enum Type { Client=0, Render=1, Sound=2, Game=3 };
+
+	inline Type type() const { return  extension_type; }
+
+	inline Entity *entity() { return extension_entity; }
+
+	Extension(Type type, Entity *entity);
+	virtual ~Extension();
+
+	virtual void frame(float elapsed) = 0;
+
+private:
+	Type			extension_type;
+	Entity			*extension_entity;
+	
+};
+
+} // namespace core
+
+#endif // __INCLUDED_CORE_EXTENSION_H__
+