STEP 14: The ball just goes up and down in a straight line! Let's also change the x-speed slightly on each bounce!

  • Go to and drag in Get x Speed at the bottom of the head_ball() function.
  • Change sprite to hit_sprite.
  • Go to and drag Set x Speed . Change sprite to hit_sprite.
  • Replace the 5 in parentheses with the equation (my_var + 1). Make sure my_var is positive!

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def set_stage(): """ Sets up the stage for the game """ stage.set_background("soccerfield") stage.disable_floor() def add_player(): """ Adds a player to the stage for the user to control """ player = codesters.Sprite("player1") player.go_to(0, -180) player.set_size(0.75) return player def add_ball(): """ Adds a ball to the stage and sets its attributes """ ball = codesters.Sprite("soccerball") ball.set_y_speed(-8) def head_ball(sprite, hit_sprite): """ Detects collisions between the player and ball """ my_var = hit_sprite.get_y_speed() hit_sprite.set_y_speed(-my_var + 1) def main(): """ Sets up the program and calls other functions """ set_stage() player = add_player() add_ball() player.event_collision(head_ball) main()
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