#include <GL/glut.h>
float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glPushMatrix();
      glRotatef(angle,0,1,0.5);

      glBegin(GL_POLYGON);;//三角形
        glColor3f(1,1,0);
        glVertex3f(0.2,0.1,0.8);
        glVertex3f(-0.2,0.1,0.8);
        glVertex3f(0,0.2,0.8);
        glVertex3f(-0.1,0.1,0.8);
        glVertex3f(0.1,0.1,0.8);
        glVertex3f(-0.1,-0.2,0.8);
        glVertex3f(0.1,-0.2,0.8);

    glEnd();

    glBegin(GL_POLYGON);;//三角形
        glColor3f(1,1,0);
        glVertex3f(0.2,0.1,-0.8);
        glVertex3f(-0.2,0.1,-0.8);
        glVertex3f(0,0.2,-0.8);
        glVertex3f(-0.1,0.1,-0.8);
        glVertex3f(0.1,0.1,-0.8);
        glVertex3f(-0.1,-0.2,-0.8);
        glVertex3f(0.1,-0.2,-0.8);

    glEnd();
       glBegin(GL_QUAD_STRIP);;//連起來
         glVertex3f(0.2,0.1,0.8);
         glVertex3f(0.2,0.1,-0.8);
         glVertex3f(-0.2,0.1,0.8);
         glVertex3f(-0.2,0.1,-0.8);
         glVertex3f(0,0.2,0.8);
        glVertex3f(0,0.2,-0.8);
        glVertex3f(-0.1,0.1,0.8);
        glVertex3f(-0.1,0.1,-0.8);
        glVertex3f(0.1,0.1,0.8);
         glVertex3f(0.1,0.1,-0.8);
         glVertex3f(-0.1,-0.2,0.8);
          glVertex3f(-0.1,-0.2,-0.8);
          glVertex3f(0.1,-0.2,0.8);
          glVertex3f(0.1,-0.2,-0.8);

    glEnd();


    glPopMatrix();
    angle+=0.01;

    glFlush();

}

int oldX=0;
void motion(int x, int y)
{
    angle +=(x-oldX);
    oldX=x;
}


int main(int argc,char **argv)
{
    glutInit(&argc, argv);
    glutCreateWindow("02160986");
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMotionFunc(motion);//mouse motion drag動作移動的函式
    glutMainLoop();
}