-利用fprintf儲存檔案
#include <stdio.h>
#include <GL/glut.h>
float angle[20]={}, diff=2;
int angleID=0;
void timer(int t)
{
glutTimerFunc(30,timer, t+1);
angle[angleID]+=diff;
if(angle[angleID]>90) diff=-2;
if(angle[angleID]<0) diff=+2;
glutPostRedisplay();
}
void keyboard(unsigned char key, int x, int y )
{
if(key=='0') angleID=0;
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glutSolidTeapot(0.3);
glPushMatrix();///左
glTranslatef(-0.3,0,0);
glRotated(angle[0],0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(-0.3,0,0);
glRotated(angle[0],0,0,1);
glTranslatef(-0.3,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glPushMatrix();///右
glTranslatef(+0.3,0,0);
glRotatef(-angle[2],0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot(0.3);
glPushMatrix();
glTranslatef(+0.3,0,0);
glRotatef(-angle[2],0,0,1);
glTranslatef(+0.3,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main( int argc, char ** argv )
{
glutInit( &argc, argv );
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week15 file");
glutKeyboardFunc(keyboard);
glutTimerFunc(0,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
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