很多人都问过这个问题,但我似乎无法让它为我的代码工作(太空入侵者(。
教程python版本1.9.6,我使用的是3.8.5,所以它很可能是过时的代码,或者有错误。我应该如何在3.8.5中做到这一点?
教程:https://youtu.be/FfWpgLFMI7w?t=6485
我制作它是为了让它能在6个敌人中繁殖,我在教程中告诉我,几乎每个enemyX、enemyY或enemy_change的末尾都添加了[I]。所以我得到了第56行的错误:
screen.blit(enemyImg[i], (x, y))
TypeError:blit的目标位置无效;
并且Pygame窗口关闭。
感谢的帮助
以下是教程后面的错误相关代码:
import random
import math
pygame.init()
pygame.init()
enemyImg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
num_of_enemies = 6
for i in range(num_of_enemies):
enemyImg.append(pygame.image.load("enemy.png"))
enemyX.append(random.randint(0, 735))
enemyY.append(random.randint(50, 150))
enemyX_change.append(4)
enemyY_change.append(10)
def enemy(x, y, i):
screen.blit(enemyImg[i], (x, y))
def isCollision(enemyX, enemyY, bulletX, bulletY):
distance = math.sqrt((math.pow(enemyX - bulletX, 2)) + (math.pow(enemyY - bulletY, 2)))
if distance < 27:
return True
else:
return False
for i in range(num_of_enemies):
enemyX[i] += enemyX_change[i]
if enemyX[i] <= 0:
enemyX_change[i] = 4
enemyY[i] += enemyY_change[i]
elif enemyX[i] >= 735:
enemyX_change[i] = -4
enemyY[i] += enemyY_change[i]
collision = isCollision(enemyX[i], enemyY[i], bulletX, bulletY)
if collision:
bulletY = 480
bullet_state = "ready"
score += 1
print(score)
enemyX[i] = random.randint(0, 735)
enemyY[i] = random.randint(50, 150)
enemy(enemyX, enemyY, i)
enemyX
和enemyY
是坐标列表。将列表传递给enemy
函数:
def isCollision(enemyX, enemyY, bulletX, bulletY): # [...] for i in range(num_of_enemies): # [...] enemy(enemyX, enemyY, i)
您需要通过订阅获得列表的元素(x[i]
,y[i]
(:
def enemy(x, y, i):
screen.blit(enemyImg[i], (x[i], y[i]))