02160305_邱俊澄_Week05

 畫一方型、自動旋轉

長方體自動旋轉、滑鼠控制旋轉

#include <GL/glut.h>
float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glPushMatrix();
        glRotatef(angle,0,0.5,0.5);
        glBegin(GL_POLYGON);
            glColor3f(1,1,0);
            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);
        glEnd();
        glBegin(GL_POLYGON);
            glColor3f(1,0,1);
            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);
        glEnd();
        glBegin(GL_QUAD_STRIP);
            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,-0.1,0.8);
            glVertex3f(-0.1,-0.1,-0.8);
            glVertex3f(0.1,-0.1,0.8);
            glVertex3f(0.1,-0.1,-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("02160305_flight");
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMotionFunc(motion);
    glutMainLoop();
}