rev |
line source |
nuclear@1
|
1 #include "opengl.h"
|
nuclear@1
|
2 #include "ship.h"
|
nuclear@6
|
3 #include "vein.h"
|
nuclear@1
|
4
|
nuclear@6
|
5 Ship::Ship(Vein *vein)
|
nuclear@1
|
6 {
|
nuclear@9
|
7 friction = 0.95;
|
nuclear@6
|
8 this->vein = vein;
|
nuclear@1
|
9 }
|
nuclear@1
|
10
|
nuclear@1
|
11 void Ship::accelerate(double a)
|
nuclear@1
|
12 {
|
nuclear@1
|
13 velocity += get_direction() * a;
|
nuclear@1
|
14 }
|
nuclear@1
|
15
|
nuclear@3
|
16 void Ship::accelerate_side(double a)
|
nuclear@3
|
17 {
|
nuclear@3
|
18 velocity += get_right() * a;
|
nuclear@3
|
19 }
|
nuclear@3
|
20
|
nuclear@1
|
21 void Ship::turn(double yaw, double pitch)
|
nuclear@1
|
22 {
|
nuclear@1
|
23 Quaternion qyaw(Vector3(0, 1, 0), yaw);
|
nuclear@1
|
24 Quaternion qpitch(Vector3(1, 0, 0), pitch);
|
nuclear@1
|
25
|
nuclear@1
|
26 rot *= qpitch;
|
nuclear@1
|
27 rot *= qyaw;
|
nuclear@1
|
28 }
|
nuclear@1
|
29
|
nuclear@1
|
30 void Ship::update(time_sec_t dt)
|
nuclear@1
|
31 {
|
nuclear@6
|
32 Vector3 newpos = pos + velocity * dt;
|
nuclear@1
|
33 velocity -= velocity * friction * dt;
|
nuclear@6
|
34
|
nuclear@6
|
35 HitPoint hit;
|
nuclear@6
|
36 if(collision(vein, pos, newpos, &hit)) {
|
nuclear@6
|
37 newpos = hit.pos;
|
nuclear@6
|
38 // TODO damp velocity along normal
|
nuclear@6
|
39 }
|
nuclear@6
|
40
|
nuclear@6
|
41 pos = newpos;
|
nuclear@6
|
42 }
|
nuclear@6
|
43
|
nuclear@6
|
44 #define SHIP_RAD 0.25
|
nuclear@6
|
45 bool Ship::collision(const Vein *vein, const Vector3 &start, const Vector3 &end, HitPoint *hit) const
|
nuclear@6
|
46 {
|
nuclear@6
|
47 Vector3 cent = vein->calc_center(end);
|
nuclear@6
|
48 float rad = vein->get_radius();
|
nuclear@6
|
49
|
nuclear@6
|
50 Vector3 dir = end - cent;
|
nuclear@6
|
51 float dist = dir.length();
|
nuclear@6
|
52
|
nuclear@6
|
53 if(dist < rad - SHIP_RAD) {
|
nuclear@6
|
54 return false;
|
nuclear@6
|
55 }
|
nuclear@6
|
56
|
nuclear@6
|
57 if(hit) {
|
nuclear@6
|
58 Vector3 dir_norm = dir / dist;
|
nuclear@6
|
59 hit->pos = cent + dir_norm * (rad - SHIP_RAD);
|
nuclear@6
|
60 hit->normal = -dir_norm;
|
nuclear@6
|
61 }
|
nuclear@6
|
62 return true;
|
nuclear@1
|
63 }
|
nuclear@1
|
64
|
nuclear@1
|
65 const Vector3 &Ship::get_position() const
|
nuclear@1
|
66 {
|
nuclear@1
|
67 return pos;
|
nuclear@1
|
68 }
|
nuclear@1
|
69
|
nuclear@1
|
70 Vector3 Ship::get_direction() const
|
nuclear@1
|
71 {
|
nuclear@6
|
72 static const Vector3 dir(0, 0, -1);
|
nuclear@1
|
73 return dir.transformed(rot);
|
nuclear@1
|
74 }
|
nuclear@1
|
75
|
nuclear@3
|
76 Vector3 Ship::get_right() const
|
nuclear@3
|
77 {
|
nuclear@6
|
78 static const Vector3 dir(1, 0, 0);
|
nuclear@3
|
79 return dir.transformed(rot);
|
nuclear@3
|
80 }
|
nuclear@3
|
81
|
nuclear@1
|
82 Matrix4x4 Ship::get_matrix() const
|
nuclear@1
|
83 {
|
nuclear@2
|
84 Matrix3x3 rmat = rot.get_rotation_matrix().transposed();
|
nuclear@2
|
85 Matrix4x4 tmat;
|
nuclear@2
|
86 tmat.set_translation(pos);
|
nuclear@2
|
87
|
nuclear@2
|
88 return tmat * Matrix4x4(rmat);
|
nuclear@1
|
89 }
|
nuclear@1
|
90
|
nuclear@1
|
91 void Ship::dbg_draw() const
|
nuclear@1
|
92 {
|
nuclear@1
|
93 glPushAttrib(GL_POINT_BIT | GL_ENABLE_BIT);
|
nuclear@1
|
94
|
nuclear@1
|
95 glPointSize(3.0);
|
nuclear@1
|
96 glDisable(GL_LIGHTING);
|
nuclear@1
|
97
|
nuclear@1
|
98 glBegin(GL_LINES);
|
nuclear@1
|
99 glColor3f(0, 0, 1);
|
nuclear@1
|
100 glVertex3f(pos.x, pos.y, pos.z);
|
nuclear@1
|
101
|
nuclear@1
|
102 Vector3 end = pos + get_direction();
|
nuclear@1
|
103 glVertex3f(end.x, end.y, end.z);
|
nuclear@1
|
104 glEnd();
|
nuclear@1
|
105
|
nuclear@1
|
106 glBegin(GL_POINTS);
|
nuclear@1
|
107 glColor3f(1, 0, 0);
|
nuclear@1
|
108 glVertex3f(pos.x, pos.y, pos.z);
|
nuclear@1
|
109 glEnd();
|
nuclear@1
|
110
|
nuclear@2
|
111 glMatrixMode(GL_MODELVIEW);
|
nuclear@2
|
112 glPushMatrix();
|
nuclear@2
|
113 mult_gl_matrix(get_matrix());
|
nuclear@2
|
114
|
nuclear@2
|
115 glScalef(1, 1, -1);
|
nuclear@2
|
116 glColor3f(1, 1, 0);
|
nuclear@2
|
117 glutWireCone(0.1, 0.6, 12, 2);
|
nuclear@2
|
118
|
nuclear@2
|
119 glPopMatrix();
|
nuclear@2
|
120
|
nuclear@1
|
121 glPopAttrib();
|
nuclear@1
|
122 }
|