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1 #include <math.h>
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2 #include "SceneGraphRoot.h"
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3 #include "Camera.h"
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4 #include "sys.h"
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5
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6 static void
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7 camera_move(SceneGraphPtr _node, int screen_w, int screen_h)
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8 {
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9 Pad *pad = sgroot->getController();
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10 CameraPtr node = (CameraPtr)_node;
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11
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12 if (pad->left.isPush() || pad->left.isHold()) {
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13 node->xyz[0] += 2.0f;
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14 } else if (pad->right.isPush() || pad->right.isHold()) {
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15 node->xyz[0] -= 2.0f;
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16 }
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17
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18 if (pad->up.isPush() || pad->up.isHold()) {
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19 node->xyz[1] += 2.0f;
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20 } else if (pad->down.isPush() || pad->down.isHold()) {
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21 node->xyz[1] -= 2.0f;
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22 }
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23
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24 if (pad->start.isPush() || pad->start.isHold()) {
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25 node->xyz[2] += 10.0f;
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26 } else if (pad->select.isPush() || pad->select.isHold()) {
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27 node->xyz[2] -= 10.0f;
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28 }
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29 }
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30
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31 static void
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32 camera_collision(SceneGraphPtr node, int screen_w, int screen_h,
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33 SceneGraphPtr tree)
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34 {
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35 }
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36
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37 Camera::Camera(void)
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38 {
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39 name = (const char*)"Camera";
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40
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41 fov = 120.0f;
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42 near = 0.0f;
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43 far = 1000.0f;
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44
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45 this->set_move_collision(camera_move, camera_collision);
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46 }
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47
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48 #if 0
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49 void
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50 Camera::updatePerspectiveMatrix(float *m, float z0, float z1)
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51 {
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52 // scale = az + b;
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53 // z が near position(z0) => 縮小率 1
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54 // z が far position(z1) => 縮小率 0.00053 (1920pixel が 1 pixel になる)
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55 // でPerspective変換を行う
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56 float a = 0.99947f / (near - far);
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57 float b = 1-((0.99947f*near)/(near - far));
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58
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59 matrix[0] *= a*txyz[2]+b;
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60 matrix[5] *= a*txyz[2]+b;
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61
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62 float a = -0.01;
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63 //float b = 1 + -a*z0;
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64 float b = 1.0;
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65
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66 float z = a*z0 + b;
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67
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68 m[0] = z;
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69 m[5] = z;
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70 }
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71
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72 #endif
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73 void
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74 Camera::updatePerspectiveMatrix(float *m, float s, float r)
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75 {
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76 m[0] = s*r;
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77 m[5] = s;
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78 }
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79
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80 void
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81 Camera::update(int w, int h)
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82 {
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83 float pers_matrix[16] = {
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84 1, 0, 0, 0,
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85 0, 1, 0, 0,
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86 0, 0, 1, 0,
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87 0, 0, 0, 0
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88 };
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89
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90 float m[16];
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91
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92 float zoom = 1.0f / tan(fov*0.5f*M_PI/180.0f);
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93
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94 //updatePerspectiveMatrix(pers_matrix, zoom, (float)h/(float)w);
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95 get_matrix(matrix, angle, xyz, NULL);
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96 //matrix4x4(matrix, m, pers_matrix);
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97 }
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