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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/*
client/camera.cc
This file is part of the Osirion project and is distributed under
the terms and conditions of the GNU General Public License version 2
*/
#include "client/client.h"
#include "math/mathlib.h"
using math::degrees360f;
using math::degrees180f;
using namespace render;
namespace client
{
Camera::Camera()
{
pitch_overview = -60.0f;
pitch_track = -15.0f;
offset_inc = 5.0f;
yaw_current = 0;
yaw_target = 0;
pitch_current = pitch_track * 2;
pitch_target = pitch_track;
distance = 0.4f;
mode = Track;
}
Camera::~Camera()
{
}
void Camera::draw(float elapsed)
{
if (mode == Track) {
yaw_target = game.ship.yaw();
}
// adjust yaw
float d = degrees180f(yaw_current - yaw_target);
yaw_current = degrees360f( yaw_current - d * elapsed) ;
// adjust pitch target
d = degrees180f(pitch_current - pitch_target);
pitch_current = degrees360f( pitch_current - d *elapsed);
switch (mode) {
case Free:
gl::translate(1.0f+distance, -distance/2, 0.0f);
gl::rotate(-pitch_current, 0, 0, 1.0f);
gl::rotate(-yaw_current, 0, 1.0f, 0);
break;
case Track:
gl::translate(1.0f+distance, -distance , 0.0f);
gl::rotate(-pitch_current, 0, 0, 1.0f);
gl::rotate(-yaw_current, 0, 1.0f, 0);
break;
case Overview:
gl::translate(-distance/2, -distance, 0.0f);
gl::rotate(-pitch_current, 0, 0, 1.0f);
gl::rotate(-yaw_current, 0, 1.0f, 0);
break;
default:
break;
}
}
void Camera::rotate_right()
{
if (mode == Free || mode == Overview) {
yaw_target = degrees360f( yaw_target + offset_inc);
}
}
void Camera::rotate_left()
{
if (mode == Free || mode == Overview) {
yaw_target = degrees360f( yaw_target - offset_inc);
}
}
void Camera::rotate_up()
{
if (mode == Free) {
pitch_target = pitch_target - offset_inc;
if (pitch_target < -90.0f) pitch_target = -90.0f;
}
}
void Camera::rotate_down()
{
if (mode == Free) {
pitch_target = pitch_target + offset_inc;
if (pitch_target > 90.0f) pitch_target = 90.0f;
}
}
void Camera::nextmode() {
switch(mode) {
case Overview:
// switch camera to Track mode
mode = Track;
yaw_target = game.ship.yaw();
yaw_current = yaw_target;
pitch_target = pitch_track;
pitch_current = pitch_target;
distance = 0.4f;
break;
case Track:
// switch camera to Free mode
mode = Free;
yaw_target = game.ship.yaw();
yaw_current = yaw_target;
pitch_target = pitch_track;
pitch_current = pitch_target;
distance = 0.4f;
break;
case Free:
// switch camera to Overview mode
mode = Overview;
yaw_target = 0;
yaw_current = 0;
pitch_target = pitch_overview;
pitch_current = pitch_target;
distance = 10.0f;
default:
break;
}
}
} //namespace camera
|
