python - Pygame - 让 Sprite 循环浏览类中的图像，并分配一个碰撞盒

Question

TLDR;代码如下

我已经厌倦了 pygame 我只是很困惑，就像我想我正在学习更多关于类(class)、循环和一切的知识，但是，我认为在这个学校项目中，我们在短短几天的共同努力(面对面)中付出了太多的努力。去学校学习 Full Stacks Dev，这是他们让我们做的第一个项目，我在 stackoverflow 上从你那里学到了很多东西，但是你给出了复杂的答案，我们让它们工作，但我想我学到了很多关于调试的知识。

无论如何，这么多与 pygame 相关的问题的原因肯定是不想成为 pygame 专家......

僵尸代码:

import pygame
import random
import math
# import fighting_game

# Player = player()




class ZombieEnemy(pygame.sprite.Sprite):
# zwalkRight = [pygame.image.load('images/zombiestandright1.png'), pygame.image.load('images/ztep.png'), pygame.image.load('imageszombiestandright1.png'), pygame.image.load('images/zombiestandright1.png')]

# zwalkLeft = [(pygame.image.load('images/zombiestandleft.png'), pygame.image.load('images/ztepleft.png'), pygame.image.load('images/zombiestandleft.png'), pygame.image.load('images/ztep2.png')]
    def __init__(self, x=300, y=360):
        pygame.sprite.Sprite.__init__(self)
        self.image = pygame.image.load('images/zombie.png')
        self.rect = self.image.get_rect()
        self.rect.center = (x, y)
        self.speedy = random.randrange(1, 8)
    def move_towards_player(self, player):
        # Find direction vector (dx, dy) between enemy and player.
        dx, dy = player.rect.x - self.rect.x, player.rect.y - self.rect.y
        dist = math.hypot (dx, dy)
        dx, dy = dx / dist, dy / dist # Normalize
        # Move along this normalized vector towards the player
        self.rect.x += dx * 10
        self.rect.y += dy * 0

主要代码:

import pygame
import math
import random
from Zombie import *
# from pygame.locals import *
pygame.init()

win = pygame.display.set_mode((900,567))

pygame.display.set_caption("Power Rangers ZOMBIES")

walkRight = [pygame.image.load('images/walk1.png'), pygame.image.load('images/walk2.png'), pygame.image.load('images/walk3.png'), pygame.image.load('images/walk4.png'), pygame.image.load('images/walk5.png'), pygame.image.load('images/walk6.png')]
walkLeft = [pygame.image.load('images/leftwalk2.png'), pygame.image.load('images/leftwalk3.png'), pygame.image.load('images/leftwalk4.png'), pygame.image.load('images/leftwalk5.png'), pygame.image.load('images/leftwalk6.png'), pygame.image.load('images/leftwalk7.png')]
bg = pygame.image.load('images/background.png')
char = pygame.image.load('images/standingstill.png')
clock = pygame.time.Clock()

class Player(pygame.sprite.Sprite):
    def __init__(self,x,y,width,height):
        self.image = pygame.Surface((144,200))
        self.rect = self.image.get_rect()
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.vel = 0
        self.isJump = False
        self.left = False
        self.right = False
        self.walkCount = 0
        self.jumpCount = 10
        self.rect.x = x
        self.rect.y = y

    def draw(self, win):
        if self.walkCount + 1 >= 18:
            self.walkCount = 0

        if self.left:
            win.blit(walkLeft[self.walkCount//3], (self.x,self.y))
            self.walkCount += 1
        elif self.right:
            win.blit(walkRight[self.walkCount//3], (self.x,self.y))
            self.walkCount +=1
        else:
            win.blit(char, (self.x,self.y))

class Background(pygame.sprite.Sprite):
    def __init__(self, image_file, location):
        pygame.sprite.Sprite.__init__(self)  #call Sprite initializer
        self.image = pygame.image.load('images/background.png')
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = location

BackGround = Background('images/background.png', [0,0])

# def redrawGameWindow():
#     win.blit(bg, (0,0))
#     man.draw(win)

#     pygame.display.update()
all_zombies = pygame.sprite.Group()





#mainloop
man = Player(100, 340, 40, 60)
run = True
for i in range( 50 ):
    new_x = random.randrange( 0, 10000)       # random x-position
    # new_y = random.randrange( 0, )      # random y-position
    z = ZombieEnemy(new_x)
    all_zombies.add(z)         # create, and add to group
    z.move_towards_player(man)

    #####
while run:
    clock.tick(27)

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    keys = pygame.key.get_pressed()

    if keys[pygame.K_LEFT] and man.x > man.vel:
        BackGround.rect.left = BackGround.rect.left + int(10)
        man.x -= man.vel
        man.left = True
        man.right = False
    elif keys[pygame.K_RIGHT]: #and man.x < 500 - man.width - man.vel:
        BackGround.rect.left = BackGround.rect.left - int(10)
        man.x += man.vel
        man.right = True
        man.left = False
    else:
        man.right = False
        man.left = False
        man.walkCount = 0

    if not(man.isJump):
        if keys[pygame.K_SPACE]:
            man.isJump = True
            man.right = False
            man.left = False
            man.walkCount = 0
    else:
        if man.jumpCount >= -10:
            neg = 1
            if man.jumpCount < 0:
                neg = -1
            man.y -= (man.jumpCount ** 2) * 0.5 * neg
            man.jumpCount -= 1
        else:
            man.isJump = False
            man.jumpCount = 10

    # redrawGameWindow()
    for zombie in all_zombies:
        zombie.move_towards_player(man)

    win.blit(BackGround.image, BackGround.rect)
    all_zombies.update()
    man.draw(win)
    all_zombies.draw(win)
    pygame.display.flip()


pygame.quit()

Answer 1

玩家(man)是 Sprite所有的僵尸都在 Group 中all_zombies。
使用pygame.sprite.spritecollide()寻找僵尸和玩家之间的碰撞。例如:

if pygame.sprite.spritecollide(man, all_zombies, False):
    print("hit")

要实现这一点，您必须在 .rect 属性中跟踪玩家的位置，因为 pygame.sprite.spritecollide 使用它来查找碰撞。
您根本不需要属性 .x 和 .y。例如:

class Player(pygame.sprite.Sprite):
    def __init__(self,x,y,width,height):
        # [...]

        self.rect.x = x
        self.rect.y = y

    def draw(self, win):
        if self.walkCount + 1 >= 18:
            self.walkCount = 0

        if self.left:
            win.blit(walkLeft[self.walkCount//3], (self.rect.x,self.rect.y))
            self.walkCount += 1
        elif self.right:
            win.blit(walkRight[self.walkCount//3], (self.rect.x,self.rect.y))
            self.walkCount +=1
        else:
            win.blit(char, (self.rect.x,self.rect.y))

while run:
    # [...]

    keys = pygame.key.get_pressed()

    if keys[pygame.K_LEFT] and man.rect.x > man.vel:
        BackGround.rect.left = BackGround.rect.left + int(10)
        man.rect.x -= man.vel
        man.left = True
        man.right = False
    elif keys[pygame.K_RIGHT]: #and man.x < 500 - man.width - man.vel:
        BackGround.rect.left = BackGround.rect.left - int(10)
        man.rect.x += man.vel
        man.right = True
        man.left = False
    else:
        man.right = False
        man.left = False
        man.walkCount = 0