goat3dgfx

view src/camera.h @ 18:6f82b9b6d6c3

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added the ability to render in fixed function with the mesh class
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 08 Dec 2013 01:35:30 +0200
parents d061fe1a31ec
children
line source
1 #ifndef CAMERA_H_
2 #define CAMERA_H_
3
4 #include <vmath/vmath.h>
5
6 namespace goatgfx {
7
8 class Camera {
9 protected:
10 float roll;
11
12 mutable struct {
13 bool valid;
14 Matrix4x4 mat;
15 } mcache, mcache_inv;
16
17 virtual void calc_matrix(Matrix4x4 *mat) const = 0;
18 virtual void calc_inv_matrix(Matrix4x4 *mat) const;
19
20 void inval_cache() { mcache.valid = mcache_inv.valid = false; }
21 void set_glmat(const Matrix4x4 &m) const;
22
23 public:
24 Camera();
25 virtual ~Camera();
26
27 const Matrix4x4 &matrix() const;
28 const Matrix4x4 &inv_matrix() const;
29
30 void use() const;
31 void use_inverse() const;
32
33 // these do nothing, override to provide input handling
34 virtual void input_move(float x, float y, float z);
35 virtual void input_rotate(float x, float y, float z);
36 virtual void input_zoom(float factor);
37 };
38
39 class OrbitCamera : public Camera {
40 protected:
41 float theta, phi, rad;
42
43 void calc_matrix(Matrix4x4 *mat) const;
44 void calc_inv_matrix(Matrix4x4 *mat) const;
45
46 public:
47 OrbitCamera();
48 virtual ~OrbitCamera();
49
50 void input_rotate(float x, float y, float z);
51 void input_zoom(float factor);
52 };
53
54 class FpsCamera : public OrbitCamera {
55 protected:
56 Vector3 pos;
57
58 void calc_matrix(Matrix4x4 *mat) const;
59 void calc_inv_matrix(Matrix4x4 *mat) const;
60
61 public:
62 void input_move(float x, float y, float z);
63
64 const Vector3 &get_position() const;
65 };
66
67 class FlyCamera : public Camera {
68 private:
69 Vector3 pos;
70 Quaternion rot;
71
72 void calc_matrix(Matrix4x4 *mat) const;
73 //void calc_inv_matrix(Matrix4x4 *mat) const;
74
75 public:
76 FlyCamera();
77
78 const Vector3 &get_position() const;
79 const Quaternion &get_rotation() const;
80
81 void input_move(float x, float y, float z);
82 void input_rotate(float x, float y, float z);
83 };
84
85
86 class VRFpsCamera : public FpsCamera {
87 private:
88 float neck_eye_dist;
89 float prev_angles[3];
90
91 void calc_matrix(Matrix4x4 *mat) const;
92 void calc_inv_matrix(Matrix4x4 *mat) const;
93
94 public:
95 VRFpsCamera();
96
97 void track_vr();
98 };
99
100 } // namespace goatgfx
101
102 #endif // CAMERA_H_