xlordt

!/usr/bin/env pythonimport pygame, randomfrom pygame.locals import *pygame.init( )class Objects( pygame.sprite.Sprite ):	def __init__( self, color, position ):		pygame.sprite.Sprite.__init__( self )				self.image = pygame.Surface( [ 15, 5 ] ).convert( )		self.image.fill( color )		self.rect    = self.image.get_rect( )		self.rect.topleft   = position		class DrawBall( pygame.sprite.Sprite ):	def __init__ ( self, color, radius ):		pygame.sprite.Sprite.__init__( self )				self.image = pygame.Surface(( 2 * radius, 2 * radius )).convert( )		self.rect    = self.image.get_rect( )		self.image.set_colorkey(( 0, 0, 0 ))		self.rect.center = ( 50, 50 )		pygame.draw.circle( self.image, color, ( radius, radius ), radius )			def UpdateBall( self, velocity_x, velocity_y, _src_ ):				if self.rect.bottom >= _src_.bottom:  velocity_y -= velocity_y		if self.rect.right >= _src_.right or self.rect.left <= 0:  velocity_x = - velocity_x	#	if self.rect.right >= 200 -1 or self.rect.left <= 0:  velocity_x = - velocity_x			self.rect.move_ip( velocity_x, velocity_y )		_screen_ = pygame.display.set_mode( [ 200, 200 ] )_scrRect  = _screen_.get_rect( )velocityX, velocityY =  random.randint( 1, 5 ), random.randint( 1, 5 )objgroup =pygame.sprite.Group( )_ball = DrawBall( [ 255, 0, 0 ], 5 )for colors, pos in [ ( [ 255, 0, 0 ], [ 0, 5 ] ), ( [ 0, 255, 0 ], [ 15, 5 ] ),  ( [ 0, 0, 255 ], [ 30, 5 ] ) ]:	objgroup.add( Objects( colors, pos ))_loop_ = Truewhile pygame.event.poll( ).type != pygame.KEYDOWN: 	pygame.time.delay( 30 )		_screen_.fill(( 0, 0, 0 ))		for b in objgroup.sprites( ): _screen_.blit( b.image, b.rect )		_ball.UpdateBall( velocityX, velocityY, _scrRect )	_screen_.blit( _ball.image, _ball.rect )		pygame.display.update( )