python - 当球第一次和第二次击中它时如何使矩形改变颜色，然后在第三次击中时使其消失？

Question

我正在制作一个破砖游戏，现在球击中了一块砖（一个矩形），第一次击球就破了。我希望球第一次击中砖块时变为浅红色，第二次变为红色，然后在第三次击中时，它会破裂。

#brick list
rectInfo = [rX, rY] 
allRectInfo = [rectInfo[:] for i in range(numRects)]
allRectInfo[0] = [45, 20, True]
allRectInfo[1] = [45, 60, True]
allRectInfo[2] = [45, 100, True]
allRectInfo[3] = [45, 140, True]
allRectInfo[4] = [195, 20, True]
allRectInfo[5] = [195, 60, True]
allRectInfo[6] = [195, 100, True]
allRectInfo[7] = [195, 140, True]
allRectInfo[8] = [345, 20, True]
allRectInfo[9] = [345, 100, True]
allRectInfo[10] = [345, 60, True]
allRectInfo[11] = [345, 140, True]
allRectInfo[12] = [495, 140, True]
allRectInfo[13] = [495, 100, True]
allRectInfo[14] = [495, 60, True]
allRectInfo[15] = [495, 20, True]
allRectInfo[16] = [645, 20, True]
allRectInfo[17] = [645, 60, True]
allRectInfo[18] = [645, 100, True]
allRectInfo[19] = [645, 140, True]

#when the ball hits the bricks
for i in range (numRects):
  if allRectInfo[i][2] == True:
    rect (allRectInfo[i][0], allRectInfo[i][1], rectW, rectH)
       if allRectInfo[i][1]-25 <= y <= allRectInfo[i][1]+74 and 
    allRectInfo[i][0]-5.5 <= x <= allRectInfo[i][0]+150:
            incry = incry * (-1)
            allRectInfo[i][2] = allRectInfo[i][2] - 1
            score = score + 1
            hits = hits + 1

标签： pythoncolorsprocessingcollision-detection

Answer 1

allRectInfo[i]元组的第三个元素必须是命中数，而不是布尔属性，初始化为 0：

allRectInfo[0] = [45, 20, 0]
allRectInfo[1] = [45, 60, 0]
allRectInfo[2] = [45, 100, 0]
# [...]

识别命中时增加命中计数器：

for i in range (numRects):
      if # [...]

            # [...]

            allRectInfo[i][2] += 1

定义一个颜色数组并使用依赖于砖块的颜色：

brickcolor1 = # [...]
brickcolor2 = (255, 128, 128)
brickcolor3 = (255, 0, 0)
brickcolors = [brickcolor1, brickcolor2, brickcolor3]

currentcolor = brickcolors[allRectInfo[i][2]]

如果砖块已达到命中限制，则砖块会破裂。在这种情况下跳过砖块：

for i in range (numRects):
    if allRectInfo[i][2] < 3:
        # [...]

所有这些可能如下所示：

for i in range (numRects):

    if allRectInfo[i][2] < 3:

        currentcolor = brickcolors[allRectInfo[i][2]]
        fill(*currentcolor)
        rect(allRectInfo[i][0], allRectInfo[i][1], rectW, rectH)

        if allRectInfo[i][1]-25 <= y <= allRectInfo[i][1]+74 and allRectInfo[i][0]-5.5 <= x <= allRectInfo[i][0]+150:
            incry = incry * (-1)
            score = score + 1

            allRectInfo[i][2] += 1