python - 有没有办法在给定 Rect 对象列表的情况下检查 MOUSBUTTONDOWN 事件？

Question

我正在为我的类(class)期末项目制作游戏，但出于某种原因，我无法检查列表中矩形对象上的点击事件。如果我使用 for 循环遍历 Opened_Pack 列表并尝试单击它，则什么也不会发生(这是我下面的代码)。当我尝试使用索引([0]、[1] 等)时，无论我使用什么数字或列表有多大，都会出现索引超出范围错误。所以我想我的问题是:如果数据存储在列表中，有没有办法检查我是否单击了矩形？肯定有，但我想不通。

Opened_Pack = []
Pack_Card_Recs = []

for event in pygame.event.get():
    mouse = pygame.mouse.get_pos()

    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_ESCAPE:
            window = pygame.display.set_mode((850,850), pygame.RESIZABLE)
            #Key Bindings to open Packs, WILL BE REPLACED WITH CLICKS (eventually)
        if event.key == pygame.K_r:
            Opened_Pack = TwoPlayerPack.Open()
            Pack_Card_Recs = [Opened_Pack[i].getRect() for i in range(len(Opened_Pack))]
            #print(Pack_Card_Recs[0])
        elif event.key == pygame.K_e:
            Opened_Pack= SixPlayerPack.Open()
            Pack_Card_Recs = [Opened_Pack[i].getRect() for i in range(len(Opened_Pack))]
        elif event.key == pygame.K_t:
            Opened_Pack = SevenPlayerPack.Open()
            Pack_Card_Recs = [Opened_Pack[i].getRect() for i in range(len(Opened_Pack))]
        elif event.key == pygame.K_u:
            Opened_Pack= FourPlayerPack.Open()
            Pack_Card_Recs = [Opened_Pack[i].getRect() for i in range(len(Opened_Pack))]

    if event.type == pygame.MOUSEBUTTONDOWN:
        x, y = event.pos
        for i in range(len(Opened_Pack)):
            if Pack_Card_Recs[i].collidepoint(x,y):
                print("Clicked Player at index: " + str(i))

    if event.type == pygame.QUIT:
        run = False

Answer 1

代码迭代 Opened_Pack 的长度，而所讨论的矩形存储在列表 Pack_Card_Recs 中。只需修改循环范围即可解决此问题。

if event.type == pygame.MOUSEBUTTONDOWN:
    x, y = event.pos
    print( "%d rectangles to check" % ( len( Pack_Card_Recs ) ) )
    for i in range( len( Pack_Card_Recs ) ):             # <-- HERE, not Opened_Pack
        r = Pack_Card_Recs[i]
        print( "Is point (%d, %d) inside Rect #%d [%d, %d, %d x %d]" % ( x, y, i, r.x, r.y, r.width, r.height ) )
        if r.collidepoint( x,y ):
            print( "Clicked Player at index: " + str( i ) )

编辑:添加了一堆调试代码