我正在嘗試制作游戲，但是當我運行代碼時，游戲會使 5 個敵人出現在螢屏上。它說“blit 的位置無效”。但是，我不知道將 blit 放在哪里。我不知道該怎么辦，因為我還在學習。在添加副本之前代碼很好。不知道為什么這會改變任何東西。
這是完整的代碼：
import pygame
import random
import math
from pygame import mixer
#Imports the pygame, random, math and mixer module.
pygame.init()
#Initializes Pygame
screen = pygame.display.set_mode((800,600))
#Sets the screen to pygame looks and not normal python looks.
pygame.display.set_caption("Draft")
#Changes the title
icon = pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/doctor.png')
pygame.display.set_icon(icon)
#Changing the Icon
#Adding Background Music
mixer.music.load('C:/Users/user/Desktop/Python/CodingBee/sb_indreams.mp3')
mixer.music.play(-1)
#Loads the music and plays if until the window is closed
#Colors
white = (255,255,255)
black = (0,0,0)
red = (255,0,0)
green = (0,255,0)
blue = (0,0,255)
#Setting color variables to make it easier to access later in the code.
#Player
player_img = pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/Doctor_Running-removebg-preview (1).png')
playerx = 20
playery = 390
playerx_change = 0
playery_change = 100
#Making the Player Variables.
#Health Kit
HealthImg = pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/first-aid-kit.png')
HealthX = 20
HealthY = 405
HealthX_Change = -10
HealthY_Change = 0
Health_State = "ready"
#Making the Health_Kit Variables.
#Enemy
enemyImg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
number_of_enemies = 5
#Making a list for all 5 enemies image, x value, y value, x value change, y value change. All variables are a seperate list
for i in range(number_of_enemies):
enemyImg.append(pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/zombie.png'))
enemyX.append(random.randint(0, 736))
enemyY.append(random.randint(50, 150))
enemyX_change.append(0.45)
enemyY_change.append(40)
#Score
Score_Value = 0
font = pygame.font.Font('C:/Users/user/Desktop/Python/Pygame/Space_Invaders/Mostery.ttf', 25)
#The pygame font extension requires 2 values, the font and the font size.
#.ttf is a font extension
#Making the score variable
ScoreX = 10
ScoreY = 25
#Making a variable for the fonts x and y position
#Heading
headingfont = pygame.font.Font('C:/Users/user/Desktop/Python/Pygame/Space_Invaders/Bouncy-PERSONAL_USE_ONLY.otf', 45)
HeadingX = 230
HeadingY = 10
#Game Over
game_over_font = pygame.font.Font('C:/Users/user/Desktop/Python/Pygame/Space_Invaders/Bouncy-PERSONAL_USE_ONLY.otf', 64)
#Creating Classes
class Background():
def __init__(self):
self.bgimage = pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/Ground.png')
self.rectBGimg = self.bgimage.get_rect()
self.bgY1 = 485
self.bgX1 = 0
self.bgY2 = 485
self.bgX2 = self.rectBGimg.width
self.moving_speed = 7
def update(self):
self.bgX1 -= self.moving_speed
self.bgX2 -= self.moving_speed
if self.bgX1 <= -self.rectBGimg.width:
self.bgX1 = self.rectBGimg.width
if self.bgX2 <= -self.rectBGimg.width:
self.bgX2 = self.rectBGimg.width
def render(self):
screen.blit(self.bgimage, (self.bgX1, self.bgY1))
screen.blit(self.bgimage, (self.bgX2, self.bgY2))
class Player():
def draw_player():
screen.blit(player_img,(playerx,playery))
def player_jump():
global playery
playery -= playery_change
class Enemy():
def draw_enemy(enemyx,enemyy,i):
screen.blit(enemyImg[i],(enemyx,enemyy))
def move_enemy():
global enemyX
enemyX[i] = enemyX_change[i]
class Health():
def fire_Health (x,y):
global Health_State
Health_State = "fire"
screen.blit(HealthImg, ( x 70, y 10))
class Other():
def isCollision(enemyX, enemyY, HealthX, HealthY):
distance = math.sqrt(math.pow(enemyX - HealthX, 2) (math.pow(enemyY - HealthY, 2)))
if distance < 27:
return True
else:
return False
def show_heading():
Heading = headingfont.render("Health Run!", True, (255,255,255))
screen.blit(Heading,( HeadingX, HeadingY))
def show_score():
Score = font.render("Score = " str(Score_Value), True, (255,255,255))
screen.blit(Score,( ScoreX, ScoreY))
def game_over():
Game_Over = headingfont.render("GAME OVER!", True, (255,255,255))
screen.blit(Game_Over,( 200, 400))
Score_Value = 0
#def states an event. The event will not occur unless you call the event in the main game loop.
back_ground = Background()
#Main Game Loop
clock = pygame.time.Clock()
SCEEN_UPDATE = pygame.USEREVENT
pygame.time.set_timer(SCEEN_UPDATE,150)
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
Player.player_jump()
if event.key == pygame.K_SPACE:
if Health_State == "ready":
Health_Fire_Sound = mixer.Sound('C:/Users/user/Desktop/Python/Pygame/Space_Invaders/laser.wav')
Health_Fire_Sound.play()
Health.fire_Health(HealthX , HealthY)
HealthY = playery 10
if event.type == pygame.KEYUP:
if event.key == pygame.K_UP:
playery = playery_change
screen.fill(blue)
back_ground.update()
back_ground.render()
#Health Kit Movement
if HealthX >= 800:
HealthX = 20
Health_State = "ready"
if Health_State == "fire":
Health.fire_Health(HealthX , HealthY)
HealthX -= HealthX_Change
#Enemy Movement and collision check
for i in range(number_of_enemies):
if enemyX[i] > 20:
for j in range(number_of_enemies):
enemyY = 2000
Other.game_over()
break
Enemy.move_enemy()
collision = Other.isCollision(enemyX[i],enemyY[i],HealthX,HealthY)
if collision:
BulletY = 480
Bullet_State = "ready"
enemyX[i] = random.randint(800,900)
enemyY[i] = 405
HealthX = 20
Health_State = "ready"
Score_Value = 1
# draw objects
Player.draw_player()
Enemy.draw_enemy(enemyX,enemyY, i)
Other.show_heading()
Other.show_score()
# update display
pygame.display.update()
clock.tick(60)
uj5u.com熱心網友回復：
enemyX并且enemyY是坐標串列。您有 2 個選項：
將串列項傳遞給
draw_enemy：class Enemy(): def draw_enemy(enemyx, enemyy, i): screen.blit(enemyImg[i], (enemyx, enemyy))Enemy.draw_enemy(enemyX[i], enemyY[i], i)從串列中獲取專案
draw_enemy：class Enemy(): def draw_enemy(enemyx, enemyy, i): screen.blit(enemyImg[i], (enemyx[i], enemyy[i]))Enemy.draw_enemy(enemyX, enemyY, i)
無論如何，我建議創建一個Enemy具有屬性的類（參見Classes）。請注意，以下代碼并不完整，它只是一個如何實作類和使用物件實體的示例。我將把它留給您作為練習，以將其合并到您的代碼中。
class Enemy():
def __init__(self, image, x, y, changeX, changeY):
self.image = image
self.x = x
self.y = y
self.changeX = changeX
self.changeY = changeY
def move(self):
self.x = self.changeX
self.y = self.changeY
def draw(self):
screen.blit(self.image, (self.x, self.y))
number_of_enemies = 5
enemies = []
enemyImg = pygame.image.load('C:/Users/user/Desktop/Python/CodingBee/zombie.png')
for i in range(number_of_enemies):
x = random.randint(0, 736)
y = random.randint(50, 150)
enemy = Enemy(enemyImg, x, y, 0.45, 0)
enemies.append(enemy)
running = True
while running:
# [...]
for enemy in enemies:
enemy.move()
# [...]
for enemy in enemies:
enemy.draw()
# [...]
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