
Products sell well in Europe, North America, Middle East, Southeast Asia, Taiwan, Africa. Today our bearings warmly welcome by customers have been successfully used in various fields such as electric motor\autocycle\automobile\agricultural machinery\electric appliance, instrument, electronic computer, machine tool, mine machine. We have one-up technology, excellent managers, fine technicians and experienced workers, adopt good-quality bearing steel and high-precision & digit-control grinder and scientific quality controlling system and testing means, ensure quality of "RNB"brand bearings stable and reliable. If _mask(ball, paddleA) or _mask(ball, paddleB):Wuxi Green World Imp&Exp Co., Ltd is jointly established by 2 bearing factories, which are Jiangsu Guangyuan Bearing Co., Ltd and Changzhou Bearing Factory Co., Ltd in Wuxi and Changzhou City, Jiangsu Province. #Detect collisions between the ball and the paddles # The loop will carry on until the user exit the game (e.g. # Add the paddles and the ball to the list of sprites #Once we have exited the main program loop we can stop the game engine:
IMP IN A BALL UPDATE
# - Go ahead and update the screen with what we've drawn. #Now let's draw all the sprites in one go. #Check if the ball is bouncing against any of the 4 walls: #Moving the paddles when the use uses the arrow keys (player A) or "W/S" keys (player B)

If event.key=pygame.K_x: #Pressing the x Key will quit the game If event.type = pygame.QUIT: # If user clicked closeĬarryOn = False # Flag that we are done so we exit this loop # The clock will be used to control how fast the screen updatesįor event in (): # User did something # The loop will carry on until the user exits the game (e.g. # Add the paddles and the ball to the list of objects

#This will be a list that will contain all the sprites we intend to use in our game. # Import the pygame library and initialise the game engine Let’s investigate how the velocity vector is affected when the sprite bounces against vertical and horizontal walls/edges.
IMP IN A BALL HOW TO
To understand how to implement a bouncing algorithm, it is essential to understand how the computer controls the trajectory of a sprite (e.g.

To do so we will create a new class called Ball. Our aim is to add the bouncing ball to our Pong game.

IMP IN A BALL SERIES
This tutorial is the third tutorial in a series of five Pygame tutorials:
