第2章     水管碰撞

import pygame

# 初始化pygame

pygame.init()

# 设置窗口大小

WIDTH = 600

HEIGHT = 400

screen = pygame.display.set_mode((WIDTH, HEIGHT))

# 设置窗口标题

pygame.display.set_caption('super mario bros')

# 避免输入法影响按键

pygame.key.stop_text_input()

# 时钟

clock = pygame.time.Clock()

# 马里奥位置和大小

x = 10

y = 20

blockWidth = 30

blockHeight = 30

# 障碍物大小

blockSize = 30

# 主循环

isRunning = True

while isRunning:

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            isRunning = False

    # 获取按键状态

    keys = pygame.key.get_pressed()

    if keys[pygame.K_LEFT]:

        print("按了左方向键")

        if x > 0:

            x = x - 2

    if keys[pygame.K_RIGHT]:

        print("按了右方向键")

        if x + blockWidth < WIDTH:

            x = x + 2

    if keys[pygame.K_g]:

        print("按了跳跃键")

        if y > 0:

            y = y - 10

    # 全屏擦除

    screen.fill((0, 0, 0))

    # 地平线

    pygame.draw.line(screen, (255, 255, 255), (0, 300), (WIDTH, 300), 1)  # 画直线

    # 障碍物

    pygame.draw.rect(screen, (255, 255, 255), ((400, 300 - blockSize * 2), (blockSize, blockSize * 2)), 0)

    # 计算马里奥位置

    y = y + 4

    if y >= 300 - blockHeight:

        y = 300 - blockHeight

    # 显示马里奥

    pygame.draw.rect(screen, (255, 255, 255), ((x, y), (blockWidth, blockHeight)), 0)

    pygame.draw.rect(screen, (0, 0, 0), ((x + 5, y + 5), (blockWidth - 10, blockHeight - 10)), 0)

    # 刷新显示

    pygame.display.flip()

    # 每秒60帧

    clock.tick(60)

# 退出 Pygame

pygame.quit()