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/* 
   client/camera.h
   This file is part of the Osirion project and is distributed under 
   the terms and conditions of the GNU General Public License version 2 
*/

#ifndef __INCLUDED_CLIENT_CAMERA_H__
#define __INCLUDED_CLIENT_CAMERA_H__

#include "math/mathlib.h"

namespace client {

/// camera functions
namespace camera
{
	/// enum indicating the camera mode
	enum Mode {Free, Track, Overview};

	/// initialize the camera
	void init();

	/// shutdown the camera
	void shutdown();

	/// draw the OpenGL camera transformation
	void draw(float elapsed);

	/// rotate the camera left
	void key_left();

	/// rotate the camera right
	void key_right();

	/// rotate the camera up
	void key_up();

	/// rotate the camera down
	void key_down();

	/// switch to next camera mode
	void next_mode();

	/// gameworld coordinates of the camera target
	extern math::Vector3f target;

} // namespace camera

} // namespace client
	
#endif // __INCLUDED_CLIENT_CAMERA_H__