def specialKeyEvent(key, x, y):
#Left arrow to decrease x velocity
if key == GLUT_KEY_LEFT:
BouncingBallModel.changeVelocity(
'glutSolidSphere',
BouncingBallModel.objects['glutSolidSphere']['velocity'][0] - .01,
0)
#Right arrow to increase x velocity
elif key == GLUT_KEY_RIGHT:
BouncingBallModel.changeVelocity(
'glutSolidSphere',
BouncingBallModel.objects['glutSolidSphere']['velocity'][0] + .01,
0)
#Up arrow to increase y velocity
elif key == GLUT_KEY_UP:
BouncingBallModel.changeVelocity(
'glutSolidSphere',
BouncingBallModel.objects['glutSolidSphere']['velocity'][1] + .01,
1)
#Down arrow to decrease y velocity
elif key == GLUT_KEY_DOWN:
BouncingBallModel.changeVelocity(
'glutSolidSphere',
BouncingBallModel.objects['glutSolidSphere']['velocity'][1] - .01,
1)
def reshape(w, h):
global left,right,bottom,top
glViewport(0, 0, w, h)
glMatrixMode (GL_PROJECTION)
glLoadIdentity()
if w <= h:
left = -2.5
right = 2.5
bottom = -2.5 * h/w
top = 2.5 * h/w
else:
left = 2.5 * w/h
right = 2.5 * w/h
bottom = -2.5
top = 2.5
glOrtho(left,right,bottom,top, -10.0, 10.0)
BouncingBallModel.setScreenBoundries(left + radius, right - radius, bottom + radius, top - radius)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
def reshape(w, h):
global left, right, bottom, top
glViewport(0, 0, w, h)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
if w <= h:
left = -2.5
right = 2.5
bottom = -2.5 * h / w
top = 2.5 * h / w
else:
left = 2.5 * w / h
right = 2.5 * w / h
bottom = -2.5
top = 2.5
glOrtho(left, right, bottom, top, -10.0, 10.0)
BouncingBallModel.setScreenBoundries(left + radius, right - radius,
bottom + radius, top - radius)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
def display():
global time
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
spherePos = BouncingBallModel.updateObject('glutSolidSphere',time)
glPushMatrix()
glTranslatef(spherePos[0], spherePos[1], spherePos[2])
glutSolidSphere(radius, 40, 40)
glPopMatrix()
glutSwapBuffers()
glFlush()
time = time + .25
def display():
global time
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()
spherePos = BouncingBallModel.updateObject('glutSolidSphere', time)
glPushMatrix()
glTranslatef(spherePos[0], spherePos[1], spherePos[2])
glutSolidSphere(radius, 40, 40)
glPopMatrix()
glutSwapBuffers()
glFlush()
time = time + .25
def specialKeyEvent(key, x, y):
# Left arrow to decrease x velocity
if key == GLUT_KEY_LEFT:
BouncingBallModel.changeVelocity(
"glutSolidSphere", BouncingBallModel.objects["glutSolidSphere"]["velocity"][0] - 0.01, 0
)
# Right arrow to increase x velocity
elif key == GLUT_KEY_RIGHT:
BouncingBallModel.changeVelocity(
"glutSolidSphere", BouncingBallModel.objects["glutSolidSphere"]["velocity"][0] + 0.01, 0
)
# Up arrow to increase y velocity
elif key == GLUT_KEY_UP:
BouncingBallModel.changeVelocity(
"glutSolidSphere", BouncingBallModel.objects["glutSolidSphere"]["velocity"][1] + 0.01, 1
)
# Down arrow to decrease y velocity
elif key == GLUT_KEY_DOWN:
BouncingBallModel.changeVelocity(
"glutSolidSphere", BouncingBallModel.objects["glutSolidSphere"]["velocity"][1] - 0.01, 1
)
def keyEvent(key, x, y):
#Press the space bar to pause or unpause the boucning ball
if key == chr(32):
BouncingBallModel.setPause(not BouncingBallModel.pause)
BouncingBallModel.setScreenBoundries(left + radius, right - radius, bottom + radius, top - radius)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
def Timer(value):
glutPostRedisplay()
glutTimerFunc(refresh, Timer, 0)
if __name__ == '__main__':
glutInit(sys.argv)
glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH)
glutInitWindowSize (screenWidth, screenHeight)
glutCreateWindow('Bouncing Ball')
init()
glutReshapeFunc(reshape)
glutDisplayFunc(display)
glutTimerFunc(0, Timer, 0)
glutKeyboardFunc(BouncingBallController.keyEvent)
glutSpecialFunc(BouncingBallController.specialKeyEvent)
BouncingBallModel.addObjects('glutSolidSphere', [0,5,0], 0, [0.0,0.1,0])
print "Instructions:"
print "~ To pause or restart the ball press the space bar"
print "~ To decrease the speed in the x direction, press the left arrow"
print "~ To increase the speed in the x direction, press the right arrow"
print "~ To increase the speed in the y direction, press the up arrow"
print "~ To decrease the speed in the x direction, press the down arrow"
glutMainLoop()
def keyEvent(key, x, y):
# Press the space bar to pause or unpause the boucning ball
if key == chr(32):
BouncingBallModel.setPause(not BouncingBallModel.pause)
glLoadIdentity()
def Timer(value):
glutPostRedisplay()
glutTimerFunc(refresh, Timer, 0)
if __name__ == '__main__':
glutInit(sys.argv)
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH)
glutInitWindowSize(screenWidth, screenHeight)
glutCreateWindow('Bouncing Ball')
init()
glutReshapeFunc(reshape)
glutDisplayFunc(display)
glutTimerFunc(0, Timer, 0)
glutKeyboardFunc(BouncingBallController.keyEvent)
glutSpecialFunc(BouncingBallController.specialKeyEvent)
BouncingBallModel.addObjects('glutSolidSphere', [0, 5, 0], 0,
[0.0, 0.1, 0])
print "Instructions:"
print "~ To pause or restart the ball press the space bar"
print "~ To decrease the speed in the x direction, press the left arrow"
print "~ To increase the speed in the x direction, press the right arrow"
print "~ To increase the speed in the y direction, press the up arrow"
print "~ To decrease the speed in the x direction, press the down arrow"
glutMainLoop()
