为什么我的Python pygame程序在启动后立即关闭？

Question

我想用Pygame做个游戏。但该计划启动后立即关闭

我遵循了YT的一个教程，完全按照原样复制了这个函数，但仍然得到了错误

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代码如下：

import pygame
import sys
import random as rd

pygame.init()

width = 800
height = 600

red = (255, 0, 0)
black = (0, 0, 0)
blue = (0, 0, 255)

playerPosition = [400, 500]
playerSize = 35

enemySize = 50
enemyPosition = [rd.randint(0, width - enemySize), 0]
enemySpeed = 10

screen = pygame.display.set_mode((width, height))
title = pygame.display.set_caption("Dodge Game by Ishak")


def collision(playerPosition, enemyPosition):
    playerX = playerPosition[0]  # player x coordinate
    playerY = playerPosition[1]  # player y coordinate

    enemyX = enemyPosition[0]  # enemy x coordinate
    enemyY = enemyPosition[1]  # enemy y coordinate

    if (enemyX >= playerX and enemyX < (playerX + playerSize)) or (playerX >= enemyX and playerX < (enemyX + enemySize)):
        if (enemyY >= playerY and enemyY < (playerY + playerSize)) or (playerY >= enemyY and playerY < (enemyY + enemySize)):
            return False
    return True


clock = pygame.time.Clock()

gameOver = False
# game loop
while not gameOver:

    # QUIT
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

    # keyboard
    if event.type == pygame.KEYDOWN:

        x = playerPosition[0]
        y = playerPosition[1]

        if event.key == pygame.K_RIGHT:
            x += 13
        elif event.key == pygame.K_LEFT:
            x -= 13

        playerPosition = [x, y]

    if enemyPosition[1] >= 0 and enemyPosition[1] < height:
        enemyPosition[1] += enemySpeed
    else:
        enemyPosition[0] = rd.randint(0, width - enemySize)  # sets a random postion of the enemy
        enemyPosition[1] = 0

    if collision(playerPosition, enemyPosition):
        gameOver = True

    screen.fill(black)

    pygame.draw.rect(screen, red, (playerPosition[0], playerPosition[1], playerSize, playerSize))  # player shape
    pygame.draw.rect(screen, blue, (enemyPosition[0], enemyPosition[1], enemySize, enemySize))  # enemy shape

    clock.tick(30)

    pygame.display.update()

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这个问题是在我添加了碰撞函数并在主游戏循环中实现它之后出现的，但是我不知道它有什么问题

Answer 1

这是我看到的唯一一个循环停止的地方：

if collision(playerPosition, enemyPosition):
        gameOver = True

所以我预测你的玩家和敌人产卵时会发生碰撞。为了确定，我建议打印玩家和敌人的位置，看看他们是否真的发生碰撞