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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_CAMERA_H__
#define __INCLUDED_CAMERA_H__
#include "gl/osiriongl.h"
namespace client {
/// camera functions
/** The functions in this namespace performs the transformations
for the camera eye location. The camera always looks at (0,0,0)
*/
class Camera
{
public:
/// enum indicating the camera mode
enum Mode {Free, Track};
/// draw the OpenGL camera transformation
static void draw(float elapsed);
/// rotate the camera left
static void rotate_left();
/// rotate the camera right
static void rotate_right();
/// rotate the camera up
static void rotate_up();
/// rotate the camera down
static void rotate_down();
/// switch to next camera mode
static void nextmode();
/// camera target
/** The location the camera is looking at */
static gl::Vector3f target;
/// target yaw, angle in XZ plane, positive is looking left
static float yaw_target;
/// target pitch, angle in XZ plane, positive is looking left
static float pitch_target;
/// distance from the camera to the target
static float distance;
protected:
/// default tracking pitch
static const float track_pitch;
/// default offset increment
static const float offset_inc;
/// current yaw, angle in XZ plane, positive is looking left
static float yaw;
/// current pitch, angle in XY, positive is looking up
static float pitch;
static Mode mode;
};
} // namespace client
#endif // __INCLUDED_CAMERA_H__
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