from __future__ import division from math import cos, sin, fabs, pi from random import randint from sfml import sf # define some constants game_size = sf.Vector2(800, 600) paddle_size = sf.Vector2(25, 100) ball_radius = 10. # create the window of the application w, h = game_size window = sf.RenderWindow(sf.VideoMode(w, h), "pySFML - Pong") window.vertical_synchronization = True # load the sounds used in the game ball_sound_buffer = sf.SoundBuffer.from_file("data/ball.wav") ball_sound = sf.Sound(ball_sound_buffer) # create the left paddle left_paddle = sf.RectangleShape() left_paddle.size = paddle_size - (3, 3) left_paddle.outline_thickness = 3 left_paddle.outline_color = sf.Color.BLACK left_paddle.fill_color = sf.Color(100, 100, 200) left_paddle.origin = paddle_size / 2 # create the right paddle right_paddle = sf.RectangleShape() right_paddle.size = paddle_size - (3, 3) right_paddle.outline_thickness = 3 right_paddle.outline_color = sf.Color.BLACK right_paddle.fill_color = sf.Color(200, 100, 100) right_paddle.origin = paddle_size / 2 # create the ball ball = sf.CircleShape() ball.radius = ball_radius - 3 ball.outline_thickness = 3 ball.outline_color = sf.Color.BLACK ball.fill_color = sf.Color.WHITE ball.origin = (ball_radius / 2, ball_radius / 2) # load the font font = sf.Font.from_file("data/sansation.ttf") # initialize the pause message pause_message = sf.Text() pause_message.font = font pause_message.character_size = 40 pause_message.position = (170, 150) pause_message.color = sf.Color.WHITE pause_message.string = "Welcome to pySFML pong!\nPress space to start the game" # define the paddles properties ai_timer = sf.Clock() ai_time = sf.seconds(0.1) paddle_speed = 400. right_paddle_speed = 0. ball_speed = 400. ball_angle = 0. # to be changed later clock = sf.Clock() is_playing = False while window.is_open: # handle events for event in window.events: # window closed or escape key pressed: exit if type(event) is sf.CloseEvent: window.close() # space key pressed: play if type(event) is sf.KeyEvent and event.pressed and event.code is sf.Keyboard.SPACE: if not is_playing: # (re)start the game is_playing = True clock.restart() # reset the position of the paddles and ball left_paddle.position = (10 + paddle_size.x / 2, game_size.y / 2) right_paddle.position = (game_size.x - 10 - paddle_size.x / 2, game_size.y / 2) ball.position = game_size / 2 # reset the ball angle while True: # make sure the ball initial angle is not too much vertical ball_angle = (randint(0, 32767) % 360) * 2 * pi / 360 if not fabs(cos(ball_angle)) < 0.7: break if is_playing: delta_time = clock.restart().seconds # move the player's paddle if sf.Keyboard.is_key_pressed(sf.Keyboard.UP) and left_paddle.position.y - paddle_size.y / 2 > 5: left_paddle.move((0, -paddle_speed * delta_time)) elif sf.Keyboard.is_key_pressed(sf.Keyboard.DOWN) and left_paddle.position.y + paddle_size.y / 2 < game_size.y - 5: left_paddle.position += (0, paddle_speed * delta_time) # move the computer' paddle if (right_paddle_speed < 0 and right_paddle.position.y - paddle_size.x / 2 > 5) or (right_paddle_speed > 0 and right_paddle.position.y + paddle_size.y / 2 < game_size.y - 5): right_paddle.position += (0, right_paddle_speed * delta_time) # update the computer's paddle direction according to the ball position if ai_timer.elapsed_time > ai_time: ai_timer.restart() if ball.position.y + ball_radius > right_paddle.position.y + paddle_size.y / 2: right_paddle_speed = paddle_speed elif ball.position.y - ball_radius < right_paddle.position.y - paddle_size.y / 2: right_paddle_speed = - paddle_speed else: right_paddle_speed = 0 # move the ball factor = ball_speed * delta_time ball.move((cos(ball_angle) * factor, sin(ball_angle) * factor)) # check collisions between the ball and the screen if ball.position.x - ball_radius < 0: is_playing = False pause_message.string = "You lost!\nPress space to restart or\nescape to exit" if ball.position.x + ball_radius > game_size.x: is_playing = False pause_message.string = "You won !\nPress space to restart or\nescape to exit" if ball.position.y - ball_radius < 0: ball_sound.play() ball_angle = - ball_angle ball.position.y = ball_radius + 0.1 if ball.position.y + ball_radius > game_size.y: ball_sound.play() ball_angle = - ball_angle ball.position.y = game_size.y - ball_radius - 0.1 # check the collisions between the ball and the paddles # left paddle if ball.position.x - ball_radius < left_paddle.position.x + paddle_size.x / 2 and ball.position.x - ball_radius > left_paddle.position.x and ball.position.y + ball_radius >= left_paddle.position.y - paddle_size.y / 2 and ball.position.y - ball_radius <= left_paddle.position.y + paddle_size.y / 2: if ball.position.y > left_paddle.position.y: ball_angle = pi - ball_angle + (randint(0, 32767) % 20) * pi / 180 else: ball_angle = pi - ball_angle - (randint(0, 32767) % 20) * pi / 180 ball_sound.play() ball.position = (left_paddle.position.x + ball_radius + paddle_size.x / 2 + 0.1, ball.position.y) # right paddle if ball.position.x + ball_radius > right_paddle.position.x - paddle_size.x / 2 and ball.position.x + ball_radius < right_paddle.position.x and ball.position.y + ball_radius >= right_paddle.position.y - paddle_size.y / 2 and ball.position.y - ball_radius <= right_paddle.position.y + paddle_size.y / 2: if ball.position.y > right_paddle.position.y: ball_angle = pi - ball_angle + (randint(0, 32767) % 20) * pi / 180 else: ball_angle = pi - ball_angle - (randint(0, 32767) % 20) * pi / 180 ball_sound.play() ball.position = (right_paddle.position.x - ball_radius - paddle_size.x / 2 - 0.1, ball.position.y) window.clear(sf.Color(50, 200, 50)) if is_playing: # draw the paddles and the ball window.draw(left_paddle) window.draw(right_paddle) window.draw(ball) else: # draw the pause message window.draw(pause_message) # display things on screen window.display()