機器人會轉動的手臂

加入一顆球

發現要加上面的球，已經不是以(0,0)來做，而是右邊那顆球的座標

再加上下左右，程式會很沒有條理

上下加入後，就整齊多了

右邊有錯的程式碼，錯在會繞著座標(0,0)旋轉

小腿機器人

#include <GL/glut.h>

float angleX =0,angle2 =0;

void keyboard(unsigned char key, int x, int y)

{

  if(key=='1') angleX+=5;

  if(key=='2') angleX-=5;

  if(key=='3') angle2+=5;

  if(key=='4') angle2-=5;

  glutPostRedisplay();//請電腦重新畫一次畫面

}

void myLight()

{

  const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };

  glEnable(GL_LIGHT0);

  glEnable(GL_NORMALIZE);

  glEnable(GL_COLOR_MATERIAL);

  glEnable(GL_LIGHTING);

  glLightfv(GL_LIGHT0, GL_POSITION, light_position); 

}

void display()

{

  glEnable(GL_DEPTH_TEST);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

  glPushMatrix();

  glRotatef(angleX, 0,1,0);

  glutWireTeapot(0.3);

 

  glPushMatrix();    //頭 

  glTranslatef(0,0.5,0);

  glutSolidSphere(0.3,30,30);

  glPopMatrix();

 

  glPushMatrix();   //右邊肩膀 

glTranslatef(0.4,0,0);

  glutSolidSphere(0.2,30,30);

  glPushMatrix();    //右邊手臂 

  glRotatef(angle2,0,0,1);

  glTranslatef(0.2,0,0);

  glScalef(0.4,0.2,0.2);

  glutSolidCube(1);

  glPopMatrix();

  glPopMatrix();

 

  glPushMatrix();    // 左邊肩膀 

  glTranslatef(-0.4,0,0);

  glutSolidSphere(0.2,30,30);

  glPushMatrix();    //左邊手臂 

  glRotatef(-angle2,0,0,1);

  glTranslatef(-0.2,0,0);

  glScalef(0.4,0.2,0.2);

  glutSolidCube(1);

  glPopMatrix();

 

  glPopMatrix();

  glPushMatrix();    // 腰 

  glTranslatef(0,-0.3,0);

  glutSolidSphere(0.2,30,30);

  glPopMatrix();

 

  glPushMatrix();    // 右腳 

  glTranslatef(0.2,-0.4,0);

  glutSolidSphere(0.15,30,30);

  glPushMatrix();    //右邊小腿 

  glRotatef(angle2,1,0,0);

  glTranslatef(0,-0.2,0);

  glScalef(0.15,0.6,0.15);

  glutSolidCube(1);

  glPopMatrix();

  glPopMatrix();

 

  glPushMatrix();    // 左腳 

  glTranslatef(-0.2,-0.4,0);

  glutSolidSphere(0.15,30,30);

  glPushMatrix();    //左邊小腿 

  glRotatef(-angle2,1,0,0);

  glTranslatef(0,-0.2,0);

  glScalef(0.15,0.6,0.15);

  glutSolidCube(1);

  glPopMatrix();

  glPopMatrix();

 

  glPopMatrix();

  glPopMatrix();

  glutSwapBuffers();

}

int main()

{

  glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

  glutCreateWindow("week11");

  glutDisplayFunc(display);

  glutKeyboardFunc(keyboard);

  myLight();

  glutMainLoop();

}