void display()
{
/*start boiler*/
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
//set camera direction and position
gluLookAt(viewer[0], viewer[1], viewer[2], 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
//draw light source
glLightfv(GL_LIGHT0, GL_POSITION, light_one);
/*end boiler*/
s.draw();
//yellow triangle /square
/*glBegin(GL_QUADS);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, yellow);
glVertex3f(-2 , 2,0);
glVertex3f(2 , 2,0);
glVertex3f(2 , -2,0);
glVertex3f(-2 , -2,0);
glEnd();*/
//red triangle
//glBegin(GL_TRIANGLES);
// glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, cyan);
// glVertex3f(-5,0,0);
// glVertex3f(-5,-5,0);
// glVertex3f(0,0,0);
//glEnd();
////green triangle
// glBegin(GL_TRIANGLES);
// glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
// glVertex3f(0,0,0);
// glVertex3f(5,-5,0);
// glVertex3f(5,0,0);
//glEnd();
////blue triangle
// glBegin(GL_TRIANGLES);
// glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
// glVertex3f(5,-5,0);
// glVertex3f(10,-5,0);
// glVertex3f(10,0,0);
//glEnd();
/*start boiler*/
glFlush();
glutSwapBuffers();
/*end boiler*/
}
void display()
{
/*start boiler*/
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
//set camera direction and position
gluLookAt(viewer[0], viewer[1], viewer[2], 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
//draw light source
glLightfv(GL_LIGHT0, GL_POSITION, light_one);
/*end boiler*/
//dummy triangle
//glBegin(GL_QUADS);
// glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
// glVertex3f(-2,2,0);
// glVertex3f(2,2,0);
// glVertex3f(2,-2,0);
// glVertex3f(-2,-2,0);
//glEnd();
/*moveCounter++;
if (moveCounter < 100)
{
s.move(0.1, 0.1);
}*/
GLfloat increment = 0.005;
if (moveCounter > 1000)
{
moveCounter = 0;
}
if (moveCounter > 660)
{
changeColor[1] += increment;
changeColor[2] = 0;
changeColor[0] = 0;
}
else if (moveCounter > 330)
{
changeColor[1] = 0;
changeColor[2] += increment;
changeColor[0] = 0;
}
else if (moveCounter > 0)
{
changeColor[1] = 0;
changeColor[2] = 0;
changeColor[0] += increment;
}
moveCounter++;
s.setColor(changeColor);
s.draw();
glutPostRedisplay();
/*start boiler*/
glFlush();
glutSwapBuffers();
/*end boiler*/
}