timer 哆啦

#include <GL/glut.h>
#include "glm.h"
float angle=0;

void head()
{
glPushMatrix();
    glTranslatef(0,0.3,0);
    glColor3f(0,0,1);
    glutSolidSphere(0.3,30,30);
   
    glColor3f(1,1,1);
    glTranslatef(0,-0.1,0.1);
    glutSolidSphere(0.25,30,30);
    glPopMatrix();
}
void reye()
{
glPushMatrix();
    glTranslatef(0,0.3,0);
    glColor3f(1,1,1);
    glutSolidSphere(0.1,20,20);
   
    glColor3f(0,0,0);
    glTranslatef(0,0,0.1);
    glutSolidSphere(0.03,30,30);
   
    glPopMatrix();
 
}
void leye()
{
glPushMatrix();
    glTranslatef(0,0.3,0);
    glColor3f(1,1,1);
    glutSolidSphere(0.1,20,20);
   
    glColor3f(0,0,0);
    glTranslatef(0,0,0.1);
    glutSolidSphere(0.03,30,30);
   
    glPopMatrix();
 
}
void display()
{
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
     glPushMatrix();
      glRotatef(angle,0,1,0);
   
      head();
     
      glTranslatef(0.14,0,0.25);
      reye();
     
      glTranslatef(-0.25,0,0.03);
      leye();
     
      glPushMatrix();
    glTranslatef(0,-0.3,0);
    glColor3f(1,1,1);
    // glutSolidSphere(0.2,30,30);
      glPopMatrix();
     
     glPopMatrix();
   
     glutSwapBuffers();
     }
void timer(int t)
{
glutTimerFunc(20,timer,t+1);//停兩秒再開始
angle+=1;
glutPostRedisplay();
}

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };
int main()
{
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week08");
glutDisplayFunc(display);
//glutIdleFunc(idle);
/*timer*/
glutTimerFunc(2000,timer,1);
glEnable(GL_LIGHT0);
    glEnable(GL_NORMALIZE);
    glEnable(GL_COLOR_MATERIAL);
    glEnable(GL_LIGHTING);

glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

glutMainLoop();
}