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add pong game with bot opponent tutorial
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‎README.md

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@@ -304,6 +304,7 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
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- [How to Make a Maze Game in Python](https://www.thepythoncode.com/article/build-a-maze-game-in-python). ([code](gui-programming/maze-game))
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- [How to Create a Platformer Game in Python](https://www.thepythoncode.com/article/platformer-game-with-pygame-in-python). ([code](gui-programming/platformer-game))
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- [How to Make a Flappy Bird Game in Python](https://thepythoncode.com/article/make-a-flappy-bird-game-python). ([code](gui-programming/flappy-bird-game))
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- [How to Create a Pong Game in Python](https://thepythoncode.com/article/build-a-pong-game-in-python). ([code](gui-programming/pong-game))
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For any feedback, please consider pulling requests.

‎gui-programming/pong-game/README.md

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# [How to Create a Pong Game in Python](https://thepythoncode.com/article/build-a-pong-game-in-python)

‎gui-programming/pong-game/ball.py

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import pygame, sys
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import random
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from settings import WIDTH, HEIGHT
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pygame.init()
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class Ball:
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def __init__(self, x, y, radius):
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self.x = x
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self.y = y
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self.radius = radius
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self.rect = pygame.Rect(self.x, self.y, radius, radius)
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self.color = pygame.Color("red")
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self.direction = None
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self.speed_x = 0
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self.speed_y = 0
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self._random_direction()
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def _random_direction(self):
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direction = ("right", "left")
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self.direction = random.choice(direction)
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def _ball_movement(self):
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# horizontal handling
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if self.direction == "right":
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self.speed_x = 18
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else:
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self.speed_x = -18
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# vertical handling
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if self.rect.y >= HEIGHT - self.radius:
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self.speed_y = -18
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elif self.rect.y <= 0 + self.radius:
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self.speed_y = 18
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# wall bounce handling
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self.rect.x += self.speed_x
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self.rect.y += self.speed_y
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def update(self, screen):
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self._ball_movement()
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pygame.draw.rect(screen, self.color, self.rect)

‎gui-programming/pong-game/main.py

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import pygame, sys
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from settings import WIDTH, HEIGHT
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from table import Table
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pygame.init()
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screen = pygame.display.set_mode((WIDTH, HEIGHT))
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pygame.display.set_caption("Ping Pong")
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class Pong:
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def __init__(self, screen):
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self.screen = screen
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self.FPS = pygame.time.Clock()
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def draw(self):
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pygame.display.flip()
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def main(self):
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# start menu here
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table = Table(self.screen) # pass to table the player_option saved to table.game_mode
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while True:
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self.screen.fill("black")
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for event in pygame.event.get():
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if event.type == pygame.QUIT:
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pygame.quit()
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sys.exit()
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table.player_move()
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table.update()
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self.draw()
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self.FPS.tick(30)
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if __name__ == "__main__":
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play = Pong(screen)
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play.main()

‎gui-programming/pong-game/player.py

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import pygame
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class Player:
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def __init__(self, x, y, width, height):
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self.x = x
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self.y = y
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self.rect = pygame.Rect(self.x, self.y, width, height)
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self.color = pygame.Color("gray")
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self.player_speed = 16
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self.score = 0
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def move_up(self):
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self.rect.y -= self.player_speed
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def move_bottom(self):
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self.rect.y += self.player_speed
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def update(self, screen):
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pygame.draw.rect(screen, self.color, self.rect)

‎gui-programming/pong-game/requirements.txt

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pygame

‎gui-programming/pong-game/settings.py

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WIDTH, HEIGHT = 990, 450
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player_width, player_height = 20, 90

‎gui-programming/pong-game/table.py

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import pygame, time
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import sys
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from player import Player
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from ball import Ball
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from settings import WIDTH, HEIGHT, player_width, player_height
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class Table:
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def __init__(self, screen):
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self.screen = screen
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self.game_over = False
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self.score_limit = 10
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self.winner = None
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self._generate_world()
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# text info
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self.font = pygame.font.SysFont('Bauhaus 93', 60)
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self.inst_font = pygame.font.SysFont('Bauhaus 93', 30)
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self.color = pygame.Color("white")
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# create and add player to the screen
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def _generate_world(self):
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self.playerA = Player(0, HEIGHT // 2 - (player_height // 2), player_width, player_height)
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self.playerB = Player(WIDTH - player_width, HEIGHT // 2 - (player_height // 2), player_width, player_height)
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self.ball = Ball(WIDTH // 2 - player_width, HEIGHT - player_width, player_width)
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def _ball_hit(self):
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# if ball is not hit by a player and pass through table sides
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if self.ball.rect.left >= WIDTH:
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self.playerA.score += 1
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self.ball.rect.x = WIDTH // 2
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time.sleep(1)
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elif self.ball.rect.right <= 0:
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self.playerB.score += 1
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self.ball.rect.x = WIDTH // 2
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time.sleep(1)
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# if ball land in the player
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if pygame.Rect.colliderect(self.ball.rect, self.playerA.rect):
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self.ball.direction = "right"
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if pygame.Rect.colliderect(self.ball.rect, self.playerB.rect):
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self.ball.direction = "left"
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def _bot_opponent(self):
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if self.ball.direction == "left" and self.ball.rect.centery != self.playerA.rect.centery:
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if self.ball.rect.top <= self.playerA.rect.top:
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if self.playerA.rect.top > 0:
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self.playerA.move_up()
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if self.ball.rect.bottom >= self.playerA.rect.bottom:
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if self.playerA.rect.bottom < HEIGHT:
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self.playerA.move_bottom()
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def player_move(self):
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keys = pygame.key.get_pressed()
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# for bot opponent controls
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self._bot_opponent()
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# for player controls
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if keys[pygame.K_UP]:
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if self.playerB.rect.top > 0:
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self.playerB.move_up()
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if keys[pygame.K_DOWN]:
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if self.playerB.rect.bottom < HEIGHT:
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self.playerB.move_bottom()
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def _show_score(self):
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A_score, B_score = str(self.playerA.score), str(self.playerB.score)
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A_score = self.font.render(A_score, True, self.color)
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B_score = self.font.render(B_score, True, self.color)
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self.screen.blit(A_score, (WIDTH // 4, 50))
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self.screen.blit(B_score, ((WIDTH // 4) * 3, 50))
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def _game_end(self):
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if self.winner != None:
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print(f"{self.winner} wins!!")
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pygame.quit()
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sys.exit()
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def update(self):
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self._show_score()
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self.playerA.update(self.screen)
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self.playerB.update(self.screen)
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self._ball_hit()
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if self.playerA.score == self.score_limit:
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self.winner = "Opponent"
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elif self.playerB.score == self.score_limit:
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self.winner = "You"
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self._game_end()
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self.ball.update(self.screen)

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