TypeError: invalid destination position for blit

Question

请帮忙。我一直在寻找，但我仍然不太明白如何解决这个问题。我不知道我是否忘记了什么，或者 x 和 y 的值由于某种原因不被认为是整数（我过去曾尝试修复它：int(x))

我想从 Google 创建恐龙游戏，但是 "Hidrante" class 的 .blit 失败（但玩家一号正在运行）。我已经把它放在正常值而不是 self.x 和 self.y 但仍然遇到问题，我试图说它 x 和 y 是整数，试图更改名称，我正在加载的图像, 并复制播放器的代码但似乎不起作用。

这是全部代码

import pygame


pygame.init()

window = pygame.display.set_mode((1000, 1000))

pygame.display.set_caption("Dinosaurio")

clock = pygame.time.Clock()
char = pygame.image.load('dino.png')
bg = pygame.image.load('bg2.jpg')
img = pygame.image.load("H2.jpg")


class Player(object):
#values of player
    def __init__(self, x, y, width, height):
        self.x = x
        self.y = y
        self.width = width
        self.height = height
        self.vel = 5
        self.isJump = False
        self.jumpCount = 10
        self.hitbox = (self.x + 20, self.y, 30, 64)
#putting the player on screem
    def draw(self, window):
        window.blit(char, (self.x, self.y))
        self.hitbox = (self.x + 20, self.y, 30, 64)
        pygame.draw.rect(window, (255, 0, 0), self.hitbox, 2)

#Obstacle
class Hidrante(object):

    def __init__(self, x, y, width, height):
        self.x = x
        self.y = y
        self.width = width
        self. height = height
        self.vel = 8
        self.hitbox = (self.x + 17, self.y + 2, 31, 57)
        self.walkCount = 10
        self.path = 0
#putting the obstacle in screem
    def draw(self, win):
        if self.walkCount + 1 >= 33: #fill code, trying things not actual util
            self.walkCount = 0

        if self.vel > 0:
            window.blit(img, (self.x, self.y)) #here is the problem
            self.walkCount += 1
        else:
            window.blit(img, (self.x, self.y))#these too
            self.walkCount += 1
        self.hitbox = (self.x + 17, self.y + 2, 30, 60)  
        pygame.draw.rect(window, (255, 0, 0), self.hitbox, 2)


def gmv():
#putting on creem the objects
    window.blit(bg, (0, 0))
    dino.draw(window)
    hidrante.draw(window)
    pygame.display.update()

#creating the objects
dino = Player(110, 620, 64, 64)
hidrante = Hidrante(1100, 620, 64, 64)
run = True
neg = 1
while run:
    clock.tick(30) #frames
    hidrante.x = (hidrante.x ** 2) * -1 #Function to not jump infinit.

    for event in pygame.event.get():
        if event.type == pygame.QUIT: 
            run = False
#Space to jump
    keys = pygame.key.get_pressed()

    if not (dino.isJump):
        if keys[pygame.K_SPACE]:
            dino.isJump = True
    else:
        if dino.jumpCount >= -10:
            dino.y -= (dino.jumpCount * abs(dino.jumpCount)) * 0.5
            dino.jumpCount -= 1
        else:
            dino.jumpCount = 10
            dino.isJump = False

    gmv()


pygame.quit()

我只想知道对象的值干扰 .blit 的原因并了解如何修复它。

Answer 1

传递给pygame.Surface.blit()的坐标必须在一定的范围内。似乎坐标的限制必须在（ctypes）数据类型int的范围内，即从-2147483648到2147483647。

您在对象 hidrante 中超出了此限制，因为行：

hidrante.x = (hidrante.x ** 2) * -1

这个公式可能没有达到您的预期。

无论如何，验证 hidrante.x 是否在屏幕范围内，以解决问题：

class Hidrante(object):

    # [...]

        def draw(self, win):
        if self.walkCount + 1 >= 33: #fill code, trying things not actual util
            self.walkCount = 0

        # validate if object is in the window
        if self.x > -30 and self.x < 1000:

            if self.vel > 0:
                window.blit(img, (self.x, self.y))
                self.walkCount += 1
            else:
                window.blit(img, (self.x, self.y))
                self.walkCount += 1
            self.hitbox = (self.x + 17, self.y + 2, 30, 60)  
            pygame.draw.rect(window, (255, 0, 0), self.hitbox, 2)

TypeError: invalid destination position for blit

TypeError: invalid destination position for blit

python

pygame

pycharm

pygame-surface