diff options
Diffstat (limited to 'pong.py')
| -rw-r--r-- | pong.py | 83 |
1 files changed, 83 insertions, 0 deletions
@@ -0,0 +1,83 @@ +import pygame, sys + +# Constants +SCREEN_WIDTH = 800 +SCREEN_HEIGHT = 600 +PADDLE_START_X = 10 +PADDLE_START_Y = 20 +PADDLE_WIDTH = 10 +PADDLE_HEIGHT = 100 +BALL_SPEED = 10 +BALL_WIDTH_HEIGHT = 16 + +pygame.init() +screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT)) +pygame.display.set_caption("Pong") + +# This is a rect that contains the ball at the beginning it is set in the center of the screen +ball_rect = pygame.Rect((SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2), (BALL_WIDTH_HEIGHT, BALL_WIDTH_HEIGHT)) + +# Speed of the ball (x, y) +ball_speed = [BALL_SPEED, BALL_SPEED] + +# Your paddle vertically centered on the left side +paddle_rect = pygame.Rect((PADDLE_START_X, PADDLE_START_Y), (PADDLE_WIDTH, PADDLE_HEIGHT)) + +# Scoring: 1 point if you hit the ball, -5 point if you miss the ball +score = 0 + +# Load the font for displaying the score +font = pygame.font.Font(None, 30) + +# Game loop +while True: + # Event handler + for event in pygame.event.get(): + if event.type == pygame.QUIT: + sys.exit(0) + pygame.quit() + # Control the paddle with the mouse + elif event.type == pygame.MOUSEMOTION: + paddle_rect.centery = event.pos[1] + # correct paddle position if it's going out of window + if paddle_rect.top < 0: + paddle_rect.top = 0 + elif paddle_rect.bottom >= SCREEN_HEIGHT: + paddle_rect.bottom = SCREEN_HEIGHT + + # This test if up or down keys are pressed; if yes, move the paddle + if pygame.key.get_pressed()[pygame.K_UP] and paddle_rect.top > 0: + paddle_rect.top -= BALL_SPEED + elif pygame.key.get_pressed()[pygame.K_DOWN] and paddle_rect.bottom < SCREEN_HEIGHT: + paddle_rect.top += BALL_SPEED + elif pygame.key.get_pressed()[pygame.K_ESCAPE]: + sys.exit(0) + pygame.quit() + + # Update ball position + ball_rect.left += ball_speed[0] + ball_rect.top += ball_speed[1] + + # Ball collision with rails + if ball_rect.top <= 0 or ball_rect.bottom >= SCREEN_HEIGHT: + ball_speed[1] = -ball_speed[1] + if ball_rect.right >= SCREEN_WIDTH or ball_rect.left <= 0: + ball_speed[0] = -ball_speed[0] + + # Test if the ball is hit by the paddle; if yes reverse speed and add a point + if paddle_rect.colliderect(ball_rect): + ball_speed[0] = -ball_speed[0] + score += 1 + + # Clear screen + screen.fill((255, 255, 255)) + + # Render the ball, the paddle, and the score + pygame.draw.rect(screen, (0, 0, 0), paddle_rect) # Your paddle + pygame.draw.circle(screen, (0, 0, 0), ball_rect.center, ball_rect.width / 2) # The ball + score_text = font.render(str(score), True, (0, 0, 0)) + screen.blit(score_text, ((SCREEN_WIDTH / 2) - font.size(str(score))[0] / 2, 5)) # The score + + # Update screen and wait 20 milliseconds + pygame.display.flip() + pygame.time.delay(20) |