blob: 49cba74792fc65d75835faa1996a315e1a4760e1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*
render/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_RENDER_CAMERA_H__
#define __INCLUDED_RENDER_CAMERA_H__
#include "math/mathlib.h"
#include "core/range.h"
namespace render {
const float WORLDSCALE = 4.0f;
const float FARPLANE = core::range::maxdistance;
const float FRUSTUMSIZE = 0.5f;
const float FRUSTUMFRONT = 1.0f;
/// camera functions
class Camera
{
public:
/// enum indicating the camera mode
enum Mode {Free, Track, Cockpit, Overview};
/// initialize the camera
static void init();
/// shutdown the camera
static void shutdown();
/// gameworld coordinates of the camera eye
static inline const math::Vector3f & eye() { return camera_eye; }
/// gameworld coordinates of the camera target
static inline const math::Vector3f & target() { return camera_target; }
/// gameworld camera axis
static inline const math::Axis & axis() { return camera_axis; }
/// current camera mode
static inline Mode mode() { return camera_mode; }
/// reset the current mode
static void reset();
/// progress the camera
static void frame(float elapsed);
/// enable camera frustum projection
/** The camera frustum projection is used to draw the world
*/
static void frustum();
/// enable default frustum projection
/** The default frustum projection is used to draw Gui 3D models
*/
static void frustum_default(float distance, float cx, float cy);
/// enable orthographic projection
/** The ortographic projetion is used to draw the user interface
*/
static void ortho();
/// set target zoom
static void set_zoom(float zoom);
/// set target direction
static void set_direction(float direction);
/// set target pitch
static void set_pitch(float pitch);
/// switch to next camera mode
static void view_next();
/// wtich to previous camera mode
static void view_previous();
/// set specified camera mode
static void set_mode(Mode newmode);
private:
static math::Vector3f camera_eye;
static math::Vector3f camera_target;
static math::Axis camera_axis;
static Mode camera_mode;
static Mode camera_previous_mode;
// current and target yaw angle in XZ plane, positive is looking left
static float direction_current;
static float direction_target;
static float target_direction;
// current and target pitch angle in XY, positive is looking up
static float pitch_current;
static float pitch_target;
static float target_pitch;
static float distance;
static float camera_zoom;
};
} // namespace client
#endif // __INCLUDED_RENDER_CAMERA_H__
|
