如何在Pygame中正确使用colliderect？

Question

我不明白为什么每当我执行程序时，我的角色与星星相撞时，它不执行以下代码？发生的情况是，即使它们没有发生碰撞，它也已经执行了代码。

    class FinishStar:
        def __init__(self):
            self.x = screenWidth + 100
            self.y = 290
            self.image = Finish
            self.width = self.image.get_width()
            self.rect = self.image.get_rect()
    
        def update(self):
            self.x -= gameSpeed
            if self.x < -self.width:
                self.x = screenWidth + 2500
                self.y = 50
    
        def draw(self, screen):
            screen.blit(self.image, (self.x, self.y))

这是 main() 中的代码：

            if scorePoints >= 100:
                star.draw(screen)
                star.update()
                if player.character_rect.colliderect(star.rect):
                    font = pygame.font.Font('Fonts/Bubblebody.ttf', 22)
                    font1 = pygame.font.Font('Fonts/Affogato-Bold.otf', 20)
                    font2 = pygame.font.Font('Fonts/Billgis - Personal Use.ttf', 38)
                    font3 = pygame.font.Font('Fonts/Affogato-Medium.otf', 31)
                    background_image = pygame.image.load(os.path.join("Images/Start", 
                    "Level1Complete.png"))
                    screen.blit(background_image, [0, 0])
                    text = font1.render("PRESS ANY KEY TO CONTINUE", True, (122, 166, 185))
                    screen.blit(text, [411, 400])
                    text = font2.render("level one completed", True, (163, 213, 176))
                    screen.blit(text, [467, 292])
                    text = font.render("Congratulations!", True, (163, 213, 176))
                    screen.blit(text, [473, 321])
                    text = font3.render("SCORE: 400/400", True, (122, 166, 185))
                    screen.blit(text, [450, 349])
                    pygame.display.update()
                    TriviaLvl1.mainTrivia()

Answer 1

pygame.Surface.get_rect.get_rect() returns 具有 Surface 对象大小的矩形，始终从 (0, 0) 开始，因为 Surface 对象没有位置。您必须更新 rect 属性的位置：

class FinishStar:
    def __init__(self):
        self.x = screenWidth + 100
        self.y = 290
        self.image = Finish
        self.width = self.image.get_width()
        self.rect = self.image.get_rect(topleft = (self.x, self.y))

    def update(self):
        self.x -= gameSpeed
        if self.x < -self.width:
            self.x = screenWidth + 2500
            self.y = 50
        self.rect.topleft = (self.x, self.y)

    def draw(self, screen):
        screen.blit(self.image, (self.x, self.y))

实际上您根本不需要 x、y 和 width 属性。使用 rect 属性的位置和大小。见 pygame.Rect:

class FinishStar:
    def __init__(self):
        self.image = Finish
        self.rect = self.image.get_rect(topleft = (screenWidth + 100, 290))

    def update(self):
        self.rect.x -= gameSpeed
        if self.rect.x < -self.rect.width:
            self.rect.x = screenWidth + 2500
            self.rect.y = 50
    
    def draw(self, screen):
        screen.blit(self.image, self.rect)

如何在Pygame中正确使用colliderect？

How to use colliderect properly in Pygame?

python

pygame

pygame-surface