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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 "render/render.h"
namespace client {
/// camera functions
/** The functions in the camera namespace perform the transformations
* for the camera eye location. The camera always looks at (0,0,0)
*/
namespace camera
{
/// enum indicating the camera mode
enum Mode {Free, Track, Overview};
/// initialize the camera
extern void init();
/// shutdown the camera
extern void shutdown();
/// draw the OpenGL camera transformation
extern void draw(float elapsed);
/// rotate the camera left
extern void rotate_left();
/// rotate the camera right
extern void rotate_right();
/// rotate the camera up
extern void rotate_up();
/// rotate the camera down
extern void rotate_down();
/// switch to next camera mode
extern void nextmode();
/// camera target
/** The location the camera is looking at */
extern math::Vector3f target;
/// target yaw, angle in XZ plane, positive is looking left
extern float yaw_target;
/// target pitch, angle in XZ plane, positive is looking left
extern float pitch_target;
/// distance from the camera to the target
extern float distance;
/// current camera mode
extern Mode mode;
} // namespace camera
} // namespace client
#endif // __INCLUDED_CLIENT_CAMERA_H__
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