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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();
/// reset the current mode
void reset();
/// gameworld coordinates of the camera target
extern math::Vector3f target;
/// gameworld coordinates of the camera eye
extern math::Vector3f eye;
/// global camera axis coordinate system
extern math::Axis axis;
/// current camera mode
extern Mode mode;
} // namespace camera
} // namespace client
#endif // __INCLUDED_CLIENT_CAMERA_H__
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