你如何以增量迭代2d数组并用ruby增加增量？ [英] How do you iterate over a 2d array in increments and increase the increment with ruby?

问题描述

我试图在阵列中一次抓取两个子阵列 - 有关如何执行此操作的任何想法吗？

I'm trying to grab two subarrays at a time within an array - any ideas on how to do this?

示例：

deck = [[2,spades],[3,hearts],[6,diamonds],[10,clubs],[8,hearts],[9,clubs]]

有没有办法一次抓住两张卡片，所以索引每次都会增加，然后从[0..1]再到[1..0]，依此类推，一次抓两张牌。

Is there any way to grab two cards at a time with a loop, so the index would increase every time and go from [0..1] then [1..0] and so on to grab two cards at a time.

我想把：

玩家1卡： [2，黑桃]，[3，心灵]

玩家2卡： [6，钻石]，[10，俱乐部]

推荐答案

我的建议只是将deck数组传递给方法并返回一个数组与[player1，player2，deck]。如果您只是从套牌的顶部绘制，您可以使用 shift 从阵列中取出第一个元素。

My recommendation would just be to pass the deck array in to a method and return an array with [player1, player2, deck]. If you're just drawing from the "top" of the deck, you can just use shift to take the first element out of the array.

deck = [[2,"spades"],[3,"hearts"],[6,"diamonds"],[10,"clubs"],[8,"hearts"],[9,"clubs"]]

def drawTwo(arr)
  if arr.count >= 4
    player_one = [deck.shift, deck.shift]
    player_two = [deck.shift, deck.shift]
    return [player_one, player_two, deck]
  else
    return "Not enough cards in deck, please provide a new deck"
  end
end

round = drawTwo(deck)
player_one = round[0]
player_two = round[1]
deck = round[2]

puts "Player one: #{player_one}"
puts "Player two: #{player_two}"
puts "Deck: #{deck}"

我试着非常详细，并没有对这段代码进行过多的混淆，所以它应该读起来非常明确。

I tried to be pretty detailed and not obfuscate this code much so it should read pretty explanatory.

你可以通过重写我来缩短它像这样，我只是想让它变得可以理解：

You could make it a bit shorter by rewriting it like this, I just wanted it to be understandable what was happening:

deck = [[2,"spades"],[3,"hearts"],[6,"diamonds"],[10,"clubs"],[8,"hearts"],[9,"clubs"]]

def drawTwo(arr)
  arr.count >= 4 ? [[arr.shift, arr.shift], [arr.shift, arr.shift]] : raise "Not enough cards..."
end

player_one, player_two = drawTwo(deck)

puts "Player one: #{player_one}"
puts "Player two: #{player_two}"
puts "Deck: #{deck}"

确保第一次包含 deck.shuffle 生成牌组。

Be sure to include a deck.shuffle when you first generate the deck.

另外，我不知道你用什么来制作牌组，但是因为我玩得很开心：

Also, I don't know what you're using to generate the deck, but since I was having fun with it:

def newShuffledDeck
    ranks = ["2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"]
    suits = ["hearts", "spades", "clubs", "diamonds"]
    deck = ranks.product(suits)
    deck.shuffle
end

这篇关于你如何以增量迭代2d数组并用ruby增加增量？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！