Pygame精灵 - 获取矩形碰撞侧面

Question

我是pygame的新手，我正在努力学习基础知识。我想创建障碍物并检测玩家矩形（代表精灵的碰撞盒）的哪一边与障碍物矩形相撞。有了这个，我可以在游戏中创建基础物理。在

这就是我所做的：

import pygame

class Player (pygame.sprite.Sprite):
    def __init__(self, x=0, y=0, s=100):
        super(Player,self).__init__()
        self.image = pygame.transform.scale(pygame.image.load("player.png"), (s, s))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y

class Block (pygame.sprite.Sprite):
    def __init__(self, x=0, y=500, s=100):
        super(Block, self).__init__()
        self.image = pygame.transform.scale(pygame.image.load("wall.png"),(s, s))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y

pygame.init()

display = pygame.display.set_mode((800,600))

player = Player()
block = Block()

sprites = pygame.sprite.Group()
living = pygame.sprite.Group()
noliving = pygame.sprite.Group()

sprites.add(player)
sprites.add(block)
living.add(player)
noliving.add(block)

gravity = 1

xCh = 0
yCh = 0

speed = 1

while True:

    display.fill((159, 159, 159))

    for liv in living:
        for noliv in noliving:
            if(not pygame.sprite.collide_rect(liv, noliv)):
                player.rect.y += gravity

    for event in pygame.event.get():
        if(event.type == pygame.KEYDOWN):
            if(event.key == pygame.K_ESCAPE):
                quit()
            elif(event.key == pygame.K_a or event.key == pygame.K_LEFT):
                xCh = -speed
            elif(event.key == pygame.K_d or event.key == pygame.K_RIGHT):
                xCh = speed
        elif(event.type == pygame.KEYUP):
            xCh = 0
            yCh = 0
        elif(event.type == pygame.QUIT):
            quit()

    player.rect.x += xCh

    sprites.draw(display)

    pygame.display.update()

当它碰到积木的时候，它就停止掉下去，但是如果我向左或向右，然后进入积木，它就会直接进入积木并停止从那里坠落。我希望球员不能通过障碍。怎么做？在

Answer 1

最新版本是：

import pygame

class GameObj(pygame.sprite.Sprite):
    def __init__(self, image, x, y, s):
        super(GameObj, self).__init__()
        self.image = pygame.transform.scale(pygame.image.load("img/"+ image), (s, s))
        self.rect = self.image.get_rect()
        self.rect.x = x
        self.rect.y = y

class Player(GameObj):

    leftUnable = False
    rightUnable = False

    jumpHeight = 200
    jumpSpeed = 5

    image = "player.png"
    inAir = True
    def __init__(self, x, y, s=100):
        super(Player,self).__init__(self.image, x, y, s)

class Block(GameObj):
    image = "wall.png"
    def __init__(self, x, y, s=100):
        super(Block, self).__init__(self.image, x, y, s)

def collideNum(sprite, group):
    total = 0
    for member in group:
        if(pygame.sprite.collide_rect(sprite, member)):
            total += 1

    return total

def setup():
    pygame.init()

    global display, player, block, sprites, living, noliving, clock

    display = pygame.display.set_mode((800, 600))
    pygame.display.set_caption("Test")

    clock = pygame.time.Clock()

    player = Player(100, 0)
    block = Block(100, 300)
    block1 = Block(200, 400)
    block2 = Block(400, 400)

    sprites = pygame.sprite.Group()
    living = pygame.sprite.Group()
    noliving = pygame.sprite.Group()

    noliving.add(block)
    noliving.add(block1)
    noliving.add(block2)

    living.add(player)

    for liv in living:
        sprites.add(liv)

    for noliv in noliving:
        sprites.add(noliv)

    main()

def main():
    speed = 5
    gravity = 5

    xCh, yCh = 0, 0

    player.leftUnable = False
    player.rightUnable = False

    while True:
        clock.tick(60)

        display.fill((184, 184, 184))

        yCh = gravity

        for event in pygame.event.get():
            if(event.type == pygame.QUIT):
                quit()
            elif(event.type == pygame.KEYDOWN):
                if(event.key == pygame.K_ESCAPE):
                    quit()
                elif((event.key == pygame.K_a or event.key == pygame.K_LEFT) and not player.leftUnable):
                    for noliv in noliving:
                        if(pygame.sprite.collide_rect(player, noliv)):
                            if(noliv.rect.left < player.rect.left < noliv.rect.right and player.rect.bottom > noliv.rect.top + 5):
                                player.leftUnable = True
                                break
                            else:
                                xCh = -speed
                                player.leftUnable = False

                        else:
                            xCh = -speed
                            player.leftUnable = False

                elif((event.key == pygame.K_d or event.key == pygame.K_RIGHT) and not player.rightUnable):
                    for noliv in noliving:
                        if(pygame.sprite.collide_rect(player, noliv)):
                            if(noliv.rect.left < player.rect.right < noliv.rect.right and player.rect.bottom > noliv.rect.top + 5):
                                player.rightUnable = True
                                break
                            else:
                                xCh = speed
                                player.rightUnable = False

                        else:
                            xCh = speed
                            player.rightUnable = False
                elif(event.key == pygame.K_SPACE or event.key == pygame.K_w or event.key == pygame.K_UP):
                    oldPos = player.rect.bottom
                    xCh = 0
                    if(not player.inAir):
                        while player.rect.bottom > oldPos - player.jumpHeight:
                            clock.tick(60)
                            display.fill((184, 184, 184))

                            for ev in pygame.event.get():
                                if(ev.type == pygame.KEYDOWN):
                                    if(ev.key == pygame.K_d or ev.key == pygame.K_RIGHT):
                                        xCh = speed
                                    elif(ev.key == pygame.K_a or ev.key == pygame.K_LEFT):
                                        xCh = -speed
                                elif(ev.type == pygame.KEYUP):
                                    xCh = 0

                            player.rect.x += xCh

                            player.rect.y -= player.jumpSpeed
                            player.inAir = True

                            sprites.draw(display)
                            pygame.display.update()
            elif(event.type == pygame.KEYUP):
                xCh = 0

        for liv in living:
            for noliv in noliving:
                if(pygame.sprite.collide_rect(liv, noliv)):
                    liv.inAir = False
                    break
                else:
                    liv.inAir = True



        for noliv in noliving:
            if(pygame.sprite.collide_rect(player, noliv)):
                if(noliv.rect.left < player.rect.left < noliv.rect.right and player.rect.bottom > noliv.rect.top + 5):
                    player.leftUnable = True
                    if(collideNum(player, noliving) == 1):
                        player.inAir = True
                    if(xCh < 0):
                        xCh = 0
                elif(noliv.rect.left < player.rect.right < noliv.rect.right and player.rect.bottom > noliv.rect.top + 5):
                    player.rightUnable = True
                    if(collideNum(player, noliving) == 1):
                        player.inAir = True
                    if(xCh > 0):
                        xCh = 0
                else:
                    player.leftUnable = False
                    player.rightUnable = False
            else:
                player.leftUnable = False
                player.rightUnable = False

        if(not player.inAir):
            yCh = 0

        if(player.rect.top > display.get_size()[1]):
            setup()

        player.rect.x += xCh
        player.rect.y += yCh

        sprites.draw(display)
        pygame.display.update()

setup()

它工作得很好。在