基本上我正在为我的学校编写一个编程项目，我最初使用的是模块化编码形式，但很明显OOP是一种更有效的编码方式。我一直在关注一些youtube教程，因为我对OOP没有那么自信，似乎已经碰到了一堵砖墙。我目前正在努力从我的敌人类产生多个敌人，也在屏幕上的随机位置产生。我想也许不得不创建一个列表来附加敌人并从那里去，但我过去几天尝试的所有东西都没有用！ 在此先感谢帮助我解决此问题，我将粘贴下面的代码。
import tkinter as tk
import pygame
import time
import random
def shutdown():
root.destroy()
#Beginning of the game code for mainmenu link
def Begin():
pygame.init()
#display size
display_width = 640
display_height = 750
gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption ("Spellmaster")
#Images for wizard sprite
wizard_right = [pygame.image.load('right_1.png'), pygame.image.load('right_3.png'), pygame.image.load('right_2.png'), pygame.image.load('right_4.png'), pygame.image.load('right_5.png')]
wizard_left = [pygame.image.load('left_1.png'), pygame.image.load('left_3.png'), pygame.image.load('left_2.png'), pygame.image.load('left_4.png'), pygame.image.load('left_5.png')]
still = pygame.image.load("wizardsprite.png")
background = pygame.image.load("background.png")
clock = pygame.time.Clock()
score = 0
class player(object):
def __init__ (self,x,y,width,height):
self.x = x
self.y = y
self.width = width
self.height = height
self.vel = 4
self.steps= 0
self.left = False
self.right = False
self.hitbox = (self.x + 20, self.y, 50, 60)
#blit the character on screen
def draw(self,gameDisplay):
if self.steps + 1 >=27:
self.steps = 0
if self.left:
gameDisplay.blit(wizard_left [self.steps//20], (self.x,self.y))
self.steps +=1
elif self.right:
gameDisplay.blit(wizard_right [self.steps//20], (self.x,self.y))
self.steps +=1
else:
gameDisplay.blit(still, (self.x,self.y))
self.steps=0
self.hitbox = (self.x + 20, self.y, 50, 60)
#pygame.draw.rect(gameDisplay, (255,0,0),self.hitbox,2)
#FIRESPELL
class projectile(object):
def __init__(self,x,y,radius,color,facing):
self.x = x
self.y = 662
self.radius = radius
self.color = color
self.facing = 0
self.vel = 10
def draw(self,gameDisplay):
pygame.draw.circle(gameDisplay, self.color, (self.x,self.y), self.radius)
#ENEMY CLASS
class enemy(object):
redspider= [pygame.image.load('redspider_right.png'), pygame.image.load('redspider_left.png'), pygame.image.load('redspider_right.png'), pygame.image.load('redspider_left.png')]
def __init__(self,x,y,width,height,end):
self.x=x
self.y=y
self.width = width
self.height = height
self.end= end
self.vel = 1.4
self.walkCount = 0
self.path = [self.y, self.end]
self.hitbox = (self.x + 20, self.y, 70, 60)
self.health = 0.2
self.visible = True
def draw(self,gameDisplay):
self.move()
if self.visible:
if self.walkCount + 1 >= 27:
self.walkCount = 0
else:
gameDisplay.blit(self.redspider[self.walkCount //2], (self.x, self.y))
self.walkCount += 0
self.hitbox = (self.x + 2, self.y, 70, 60)
#pygame.draw.rect(gameDisplay, (255,0,0), self.hitbox,2)
def move(self):
if self.vel > 0:
if self.y + self.vel < self.path[1]:
self.y += self.vel
def collision(self):
if self.health > 0:
self.health-= 1
else:
self.visible= False
print("HIT")
def redraw():
gameDisplay.blit(background, (0,0))
text = font.render('SCORE: ' + str(score), 1,(255,0,0))
gameDisplay.blit(text, (500,13))
wizard.draw(gameDisplay)
redspider.draw(gameDisplay)
for bullet in bullets:
bullet.draw(gameDisplay)
pygame.display.update()
#MAIN LOOP
pygame.font.init()
font = pygame.font.SysFont('Engravers MT', 30)
wizard=player(300, 662, 80, 84)
redspider=enemy(360,80,80,84,650)
spides = []
shootControl = 0
bullets =[]
crashed = False
while not crashed:
clock.tick(120)
if shootControl >0:
shootControl+=1
if shootControl > 3:
shootControl=0
for event in pygame.event.get():
if event.type == pygame.QUIT:
crashed = True
for bullet in bullets:
if bullet.y - bullet.radius < redspider.hitbox[1] + redspider.hitbox[3] and bullet.y + bullet.radius > redspider.hitbox[1]:
if bullet.x + bullet.radius > redspider.hitbox[0] and bullet.x - bullet.radius < redspider.hitbox[0] + redspider.hitbox[2]:
redspider.collision()
score += 1
bullets.pop(bullets.index(bullet))
if bullet.x < 500 and bullet.x > 0:
bullet.y -= bullet.vel
else:
bullets.pop(bullets.index(bullet))
keys = pygame.key.get_pressed()
if keys[pygame.K_a] and wizard.x > wizard.vel:
#if event.key == pygame.K_a and wizard.x > wizard.vel:
wizard.x -= wizard.vel
wizard.left= True
wizard.right= False
elif keys [pygame.K_d] and wizard.x < 560:
wizard.x += wizard.vel
wizard.right= True
wizard.left=False
if keys [pygame.K_SPACE] and shootControl ==0:
if wizard.left:
facing = 0
else:
facing = 0
if len(bullets) < 500:
bullets.append(projectile(round(wizard.x + wizard.width //2), round(wizard.y + wizard.height//2), 5, (255,0,0), facing))
shootControl=1
if event.type == pygame.KEYUP:
if event.key == pygame.K_a or event.key == pygame.K_d:
wizard.left= False
wizard.right=False
redraw()
pygame.quit()
shutdown
答案 0 :(得分：1)
要在屏幕周围的随机位置产生敌人，这非常简单。有两种可能的方式：
首先，您可以修改敌人 init （）以使self.x和self.y成为randint，如下所示。
self.x = random.randint(0, display_width)
self.y = random.randint(0, display_height)
此方法有效，但限制了您将敌人放置在特定位置的能力，并且可以放置在任何地方，并且可以将敌人放置在您不想要的地方。 第二种方式基本上是第一种方式，但它是在定义新敌人时编写的
redspider = enemy(random.randint(0, screen_width), random.randint(0, screen_height), 80, 84, 650)
这也有效，但在手动定义每个新敌人时需要更多时间。但是，这允许您在以后使用时仍将敌人放置在某些位置。这两个都有缺陷，因为它们是随机放置的，但你可以创建函数来限制放置它的位置。
至于你在列表中附加敌人，你可以这样做：
enemies = []
maxenemies = 10
for i in range(maxenemies):
enemies.append(enemy(random.randint(0, screen_width), random.randint(0, screen_height), 80, 84, 650))
这会将 maxenemies 数量的敌人推入敌人列表中，可以在以后绘制和使用。 maxenemies 只是可选的，但我会建议为可读性而做。 告诉我这些建议是否适合你。