Python 最大化pygame中六角形按钮的可碰撞区域

您可以利用六边形两侧的坡度为60°这一事实.如果到边界矩形中心的y距离小于距离边界矩形外部的x距离乘以60°的切线，则该点位于六边形内部:

def collideHexagon(bounding_rect, position):
    px, py = position
    if bounding_rect.collidepoint((px, py)):
        dx = min(px - bounding_rect.left, bounding_rect.right - px)
        dy = abs(py - bounding_rect.centery)
        if dy < dx * math.tan(math.radians(60)):
            return True
    return False

最小示例:

import pygame, math

pygame.init()
screen = pygame.display.set_mode((400, 400))
clock = pygame.time.Clock()


len = 100
sin_len = math.sin(math.radians(60)) * len
cos_len = math.cos(math.radians(60)) * len
pts = [
    (len, 0), (len-cos_len, sin_len), (cos_len-len, sin_len),
    (-len, 0), (cos_len-len, -sin_len), (len-cos_len, -sin_len)]
pts = [(x + 200, y + 200) for x, y in pts]

tile_heihgt = sin_len * 2
tile_width = len * 2
tiel_rect = pygame.Rect(0, 0, tile_width, tile_heihgt)
tiel_rect.center = (200, 200)

def collideHexagon(bounding_rect, position):
    px, py = position
    if bounding_rect.collidepoint((px, py)):
        dx = min(px - bounding_rect.left, bounding_rect.right - px)
        dy = abs(py - bounding_rect.centery)
        if dy < dx * math.tan(math.radians(60)):
            return True
    return False

run = True
while run:
    clock.tick(100)
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            run = False

    color = "white"
    if collideHexagon(tiel_rect, pygame.mouse.get_pos()):
        color = "red"
 
    screen.fill(0)
    pygame.draw.polygon(screen, color, pts)         
    pygame.display.flip() 

pygame.quit()
exit()