pygame.colliderect尽管彼此没有碰触，但返回True

Question

[我正在修补PyGame，阅读文章，由于某种原因，我遇到了这种奇怪的现象，当两个精灵没有接触时，pygame.colliderect返回True。代码：

import pygame
pygame.init()
screen = pygame.display.set_mode((400, 300))
running = True
spriteX = 100
spriteY = 100
spriteVY = 3
clock = pygame.time.Clock()
class Sprite(pygame.sprite.Sprite):
    def __init__(self):
        super(Sprite, self).__init__()
        self.vel = (0, 0)
        self.surf = pygame.Surface((100, 200))
        self.surf.fill((255, 255, 255))
        self.rectangle = self.surf.get_rect()
class Platform(pygame.sprite.Sprite):
    def __init__(self):
        super(Platform, self).__init__()
        self.surf = pygame.Surface((200, 10))
        self.surf.fill((142, 212, 25))
        self.rectangle = self.surf.get_rect()
on_ground = True
while running:
    platform_group = pygame.sprite.Group()
    platform_group.add(Platform())
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
    if pygame.key.get_pressed()[pygame.K_SPACE]: spriteY -= 10
    if pygame.key.get_pressed()[pygame.K_d]: spriteX += 10
    if pygame.key.get_pressed()[pygame.K_a]: spriteX -= 10
    print((Platform().rectangle.colliderect(Sprite().rectangle)))
    screen.fill((0, 0, 0))
    if spriteX >= 300:
        spriteX = 300
    if spriteX <= 0:
        spriteX = 0
    if not on_ground:
        spriteY += spriteVY
        spriteVY -= 3
    screen.blit(Sprite().surf, ((spriteX, spriteY)))
    screen.blit(Platform().surf, ((50, 20)))
    pygame.display.flip()
    clock.tick(24)

Answer 1

A pygame.Surface没有位置。因此，由pygame.Surface返回的pygame.Rect对象的位置为（0，0）。请注意，必须在Surface为pygame.Rect时指定位置。

当从表面获取矩形时，通过关键字参数指定位置。