談合作遊戲 - 桌遊

By Ophelia
at 2013-10-30T08:02
at 2013-10-30T08:02
Table of Contents
→ AtDe:重點是共輸的分數並不是固定的… 10/30 06:55
看來我得再多說明一下等價的論點
警告: 以下的數學會有點暈, 慎入
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基本上所有的遊戲都可以用以下的方式表示:
(1) 首先定義一個 "狀態",代表遊戲中所有物件和數值的現況
這不只包含分數, 同時也包含像農家樂裡有幾隻羊, 羊擺在哪裡
甚至是 "我先走啦" 裡頭每一張牌擺放的位置
特別注意這和 "盤面" 不一樣,不在你觀察範圍內的東西也在狀態內
例如牌庫裡每張牌的位置,他也是遊戲的一部分,只是你看不到
(2) 在這個架構下,所有玩家的行動
都只是把遊戲從一個狀態移動到另一個狀態
deterministically or randomly
(3) 最後定義 "結果",結果是遊戲結束時狀態的一個函數
假設遊戲結束時的狀態是A,結果就會是f(A)
f(A)的可能值包括誰贏 / 共輸 / 共贏 / 和局等各種可能狀況
為了方便解釋起見, 假設有N個玩家
f(A)是{1,2,3,...,N}的一個子集
如果是第N個玩家贏,f(A)就是{N}
1和2平手呢? f(A) = {1,2}
所有玩家共同獲勝呢? f(A) = {1,2,3,...,N}
那共輸呢? f(A) = 空集合
但 f(A) = {1,2,3,...,N} 和 f(A) = {} 有差嗎?
全贏跟全輸跟平手是一樣的吧 :)
現在回到推文的論點,"重點是共輸的分數並不是固定的"
從以上討論得知, 等價性跟分數沒有關係 ( 以上架構裡根本沒有分數唷 ^^ )
所以固不固定沒有關係
共輸純粹就是允許f(A)可以取到 {} 這一個值而已
--
切記 任何事情都不能抹殺我們對唱歌的熱情
因為這是我們活著的原因
--
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