关于python：两个玩家骰子游戏的得分问题


scoring problem with Two player dice game

这是一个游戏，两个用户掷2个骰子5次。如果骰子的总数是偶数，则玩家获得10分；如果是奇数，则输掉5分。

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total_score2 = 0
total_score1 = 0
rounds = 0
playerOnePoints = 0
playerTwoPoints = 0

total_score2 = total_score2 + playerTwoPoints
total_score1 = total_score1 + playerOnePoints
rounds = rounds + 1
number = random.randint(1,6)
number2 = random.randint(1,6)
playerOnePoints = number + number2
print("-------------------------------------------")
print("Round",rounds)
print("-------------------------------------------")
print("Player 1's turn    Type 'roll' to roll the dice")
userOneInput = input(">>>")
if userOneInput =="roll":
    time.sleep(0.5)
    print("Player 1's first roll is", number)
print("Player 1's second roll    Type 'roll' to roll the dice")
userOneInput = input(">>>")
if userOneInput =="roll":
    time.sleep(0.5)
    print("player 1's second roll is", number2)
if playerOnePoints % 2 == 0:
    playerOnePoints = playerOnePoints + 10
    print("Player 1's total is even so + 10 points")
    print("-------------------------------------------")
    print("Player 1 has",playerOnePoints,"points")
else:
    playerOnePoints = playerOnePoints - 5
    print("player 1's total is odd so -5 points")
    print("-------------------------------------------")
    print("Player 1 has",playerOnePoints,"points")
number = random.randint(1,6)
number2 = random.randint(1,6)
playerTwoPoints = number + number2
print("-------------------------------------------")
print("Player 2's turn    Type 'roll' to roll the dice")
userTwoInput = input(">>>")
if userTwoInput =="roll":
    time.sleep(0.5)
    print("Player 2's first roll is", number)
print("Player 2's second roll    Type 'roll' to roll the dice")
userTwoInput = input(">>>")
if userTwoInput =="roll":
    time.sleep(0.5)
    print("player 2's second roll is", number2)
if playerTwoPoints % 2 == 0:
    playerTwoPoints = playerTwoPoints + 10
    print("Player 2's total is even so + 10 points")
    print("-------------------------------------------")
    print("Player 2 has",playerTwoPoints,"points")
else:
    playerTwoPoints = playerTwoPoints - 5
    print("player 2's total is odd so -5 points")
    print("-------------------------------------------")
    print("Player 2 has",playerTwoPoints,"points")

有问题的是，如果一个用户滚动1和2，加起来是3，这是一个奇数，游戏将-5从3，这使总数-2，但我不希望它进入负，我希望它这样，如果他们确实得到mius分，它说他们得到0分而不是负分。

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为了简单起见，PSM的另一个答案是使用if语句：

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playerOnePoints = playerOnePoints - 5
if playerOnePoints < 0:
    playerOnePoints = 0

或者，虽然行数较少，但读起来可能并不简单：

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# playerOnePoints = playerOnePoints - 5   # Delete this line and just use below
if playerOnePoints >= 5:
    playerOnePoints = playerOnePoints - 5

减去玩家的点数后，可以使用max()：

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playerOnePoints = playerOnePoints - 5
playerOnePoints = max(0, playerOnePoints)

如果playerepoints为阴性，则该值为0；如果playerepoints为阳性，则该值为0。

也可以使用abs()来完成。

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def x(number):
    return (abs(number)+number)/2

x(-2) # This would return 0
x(2) # This would return 2
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