# 1) try different backgrounds for the stage. Try replacing # "space" with: "winter", "space", "water", or "city" stage.set_background("space") # 2) choose different colors for the paddle, ball and blocks paddle_color = "lightblue" ball_color = "red" block_color = "yellow" # 3) make the game harder by making the paddle and blocks smaller # or make the game easier by making the paddle and block larger paddle_width = 100 ball_size = 10 block_width = 40 block_height = 10 # 4) make the game harder by making the ball faster and paddle slower # or make the game easier by making the ball slower and paddle faster ball_speed = 5 paddle_speed = 5 # 5) change the number of blocks in each row and how many rows of blocks blocks_per_row = 6 number_of_rows = 4 block_y_spaces = 30 # ----------------------------------------------------------------- # this function prints GAME OVER when the ball goes off the bottom stage.disable_floor() bottom = codesters.Rectangle(0, -260, 500, 5, None) def hits_bottom(): # 6) Change the message that prints when the player loses the game game_over_message = codesters.Text("GAME OVER!", 0, 0, "red") game_over_message.set_size(3) bottom.event_collision(hits_bottom) # ----------------------------------------------------------------- # these nested for loops create the blocks at the top of the screen # it requires block_width, block_height, and block_color from above # it also requires number_of_rows and blocks_per_row from above import random first_block_x = -250 + 30 + block_width/2. block_x_spaces = (500 - 2 * 30 - block_width)/(blocks_per_row-1) blocks = [] y = 225 for r in range(number_of_rows): x = first_block_x for b in range(blocks_per_row): block = codesters.Rectangle(x, y, block_width, block_height, block_color) block.is_goal() blocks.append(block) x += block_x_spaces rand_pop = random.randint(1,10) if rand_pop > 10: # try making this number smaller stage.remove_sprite(block) y -= block_y_spaces # ----------------------------------------------------------------- # this block of code puts the paddle and the ball on the screen # then the ball is set in motion paddle = codesters.Rectangle(0, -210, paddle_width, 10, paddle_color) ball = codesters.Circle(0, 0, ball_size, ball_color) ball.set_velx(ball_speed*.4) ball.set_vely(ball_speed*.9) # ----------------------------------------------------------------- # these two functions enable the paddle to move left and right # they use the paddle speed set above def left(): paddle.set_x(paddle.x() - 5 * paddle_speed) stage.event_left_key(left) def right(): paddle.set_x(paddle.x() + 5 * paddle_speed) stage.event_right_key(right) # ----------------------------------------------------------------- # this collision function runs when the ball hits the paddle # there is randomness added to how the ball bounces def collision_paddle(i): x_dir = random.randint(0,1) if x_dir == 0: x_dir = -1 x_chance = random.randint(3,5)/10. y_chance = random.randint(8,12)/10. ball.set_velx(ball_speed*x_chance*x_dir) ball.set_vely(ball_speed*y_chance) paddle.event_collision(collision_paddle) # ----------------------------------------------------------------- # this function manages events when the ball hits a block # first, the player gets a point # then, the block is removed form the screen # finally, the ball reverses its y velocity score_text = codesters.Text('0', -225, -220, "yellow") points = 0 def collision_block(i): global points points += 1 score_text.set_text(str(points)) block = stage.get_sprite_by_index(i) stage.remove_sprite(block) ball.set_vely(-1* ball.vely()) ball.event_collision_goal(collision_block)