#include <stdio.h>
float x1=-0.4, y1=0, x2=0, y2=0, angle=0;
void display()
{
glEnable(GL_DEPTH_TEST);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(x1, y1, 0);//要掛在哪裡?
glRotatef(angle, 0,0,1);
glTranslatef(-0.25, -0.11, 0);
glColor3f(1,1,0);
glutSolidTeapot(0.2);
glPopMatrix();
glPushMatrix();
glTranslatef(x2, y2, 0);
glColor3f(1,0,0);
glutSolidTeapot(0.2);
glPopMatrix();
glFlush();///先不用 glutSwapBuffers(); 配合 glutInitDisplayMode(GLUT_DOUBLE);
}
void keyboard(unsigned char key, int x, int y)
{
if(key=='1') x1+=0.1;
if(key=='2') x1-=0.1;
if(key=='3') y1+=0.1;
if(key=='4') y1-=0.1;
if(key=='5') angle+=10;
if(key=='6') angle-=10;
printf("%f %f\n", x1, y1);
glutPostRedisplay();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutCreateWindow("Robot3D");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMainLoop();
}
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