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