c# - 简单地检查多个语句 C#

Question

目前正在开发一款小型主机游戏，想知道是否有人有一种简单的方法来缩短这样的内容:

if (map[playerX - 1, playerY] == "R1"
 || map[playerX - 1, playerY] == "R2"
 || map[playerX - 1, playerY] == "R3"
 || map[playerX - 1, playerY] == "Z1" 
 || map[playerX - 1, playerY] == "Z2" 
 || map[playerX - 1, playerY] == "Z3"
 || map[playerX - 1, playerY] == "S1 " 
 || map[playerX - 1, playerY] == "S2" 
 || map[playerX - 1, playerY] == "S3")

制作列表或其他内容并检查 map[playerX-1, playerY] 是否等于其中的任何对象或其他内容。

提前感谢您的帮助。 卢卡斯·莱德

Answer 1

您感兴趣的特定匹配值(R1、Z1 等)应填充到 HashSet 中。

HashSet hashSet = new HashSet<string>
{
    "R1",
    "R2",
    "R3",
    "Z1",
    "Z2",
    "Z3",
    "S1 ", // I am unclear whether you want this space or not
    "S2",
    "S3"
};

然后使用:

if (hashSet.Contains(map[playerX - 1, playerY])

HashSet 具有始终如一的快速 Contains适合您目的的功能(如上所示)。正如 @FilipCordas 在下面提到的，您应该考虑将此 HashSet 声明为一个 static readonly 字段，以确保您只需要将其初始化一次。