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1 #include <math.h>
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2 #include <stdlib.h>
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3 #include "SceneGraphRoot.h"
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4 #include "MainLoop.h"
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5 #include "ball_bound.h"
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6
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7
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8 // prototype
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9 static void ball_move(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h);
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10 static void ball_collision(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h, SceneGraphPtr tree);
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11 static void ball_collision_idle(SceneGraphPtr, void *sgroot_, int w, int h, SceneGraphPtr tree);
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12
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13
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14 static float vy = 0.0f; // y 方向速度
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15 static float dt = 1.0/1.0f; // frame rate
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16
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17 static float e = -0.8f; // 反発係数
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18 static float g = 9.8f; // 重力加速度
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19 //static float v0 = 0.0f; // 初速は 0
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20
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21 static float h0; // 初期高さ
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22 static float ball_radius = 100.0f;
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23
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24 static float speed = 10.0f;
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25
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26 static void
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27 ball_move_idle2(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h)
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28 {
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29 SceneGraphRoot *sgroot = (SceneGraphRoot *)sgroot_;
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30 Pad *pad = sgroot->getController();
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31
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32 if (pad->circle.isHold()) {
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33 if (pad->left.isHold()) {
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34 node->xyz[0] -= speed;
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35 if(node->xyz[0] < ball_radius)
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36 node->xyz[0] = ball_radius;
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37 } else if (pad->right.isHold()) {
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38 node->xyz[0] += speed;
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39 if(node->xyz[0] > screen_w - ball_radius)
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40 node->xyz[0] = screen_w - ball_radius;
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41 }
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42
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43 if (pad->up.isHold()) {
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44 node->xyz[1] -= speed;
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45 } else if (pad->down.isHold()) {
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46 node->xyz[1] += speed;
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47 if(node->xyz[1] > screen_h - ball_radius)
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48 node->xyz[1] = screen_h - ball_radius;
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49 }
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50 } else {
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51 node->set_move_collision(ball_move, ball_collision);
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52 }
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53 }
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54
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55 static int time = 0;
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56
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57 static void
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58 ball_move_idle(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h)
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59 {
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60 SceneGraphRoot *sgroot = (SceneGraphRoot *)sgroot_;
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61 Pad *pad = sgroot->getController();
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62
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63 if (pad->circle.isPush()) {
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64 node->set_move_collision(ball_move_idle2, ball_collision_idle);
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65 time = 0;
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66 }
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67
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68 time++;
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69
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70 if (time > 90) {
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71 float w = (float)random();
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72
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73 w = fmodf(w, screen_w - ball_radius*2);
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74 node->xyz[0] = w + ball_radius;
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75 node->xyz[1] = h0;
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76 node->set_move_collision(ball_move, ball_collision);
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77 time = 0;
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78 }
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79 }
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80
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81 static void
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82 ball_move(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h)
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83 {
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84 vy += g * dt;
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85 node->xyz[1] += vy * dt;
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86 // node->xyz[0] += 10.0f;
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87 }
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88
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89 static void
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90 ball_collision_idle(SceneGraphPtr, void *sgroot_, int w, int h, SceneGraphPtr tree)
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91 {
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92 }
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93
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94 static void
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95 ball_collision(SceneGraphPtr node, void *sgroot_, int screen_w, int screen_h,
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96 SceneGraphPtr tree)
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97 {
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98 if (node->xyz[1] > screen_h - ball_radius) {
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99 node->xyz[1] = screen_h - ball_radius;
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100
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101 vy *= e;
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102 if (vy > -g && vy < 0) {
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103 vy = 0.0;
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104 node->set_move_collision(ball_move_idle, ball_collision_idle);
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105 }
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106 }
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107 }
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108
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109 MainLoopPtr
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110 ball_bound::init(Viewer *sgroot, int screen_w, int screen_h)
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111 {
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112 SceneGraphPtr ball;
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113
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114 // 固定した値で srandom すると、毎回同じ、random() 列が生成される
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115 // random な値が欲しいなら、man random に方法が書いてあります。
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116 srandom(100);
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117
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118 sgroot->createFromXMLfile("xml_file/Ball.xml");
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119
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120 ball = sgroot->createSceneGraph("Ball");
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121 ball->set_move_collision(ball_move, ball_collision);
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122
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123 h0 = screen_h/2;
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124 h0 = -1000;
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125
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126 ball->xyz[0] = screen_w/2;
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127 //ball->xyz[0] = 0.0f;
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128 ball->xyz[1] = h0;
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129 ball->xyz[2] = 30.0f;
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130
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131 sgroot->setSceneData(ball);
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132
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133 return sgroot;
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134 }
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135
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136 extern Application *
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137 application() {
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138 return new ball_bound();
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139 }
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140
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141 const char *usr_help_str = "Usage: ./test_nogl [OPTION]\n";
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142
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143 extern int init(TaskManager *manager, int argc, char *argv[]);
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144 extern void task_initialize();
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145 static void TMend(TaskManager *manager);
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146
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147 int
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148 TMmain(TaskManager *manager, int argc, char *argv[])
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149 {
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150 task_initialize();
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151 manager->set_TMend(TMend);
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152 return init(manager, argc, argv);
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153
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154 }
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155
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156 void
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157 TMend(TaskManager *manager)
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158 {
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159 printf("test_nogl end\n");
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160 }
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161
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162 /* end */
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