如何找到分配給隨機選擇的變數的特定陣列？

因此，我正在嘗試為文本 RPG 制作一個功能，該功能允許人們單擊“漫游”按鈕并最終到達當前位置附近的隨機位置。我創建了幾個陣列，其中包含哪些位置靠近其他位置的資訊，我希望能夠按下按鈕，生成一個新位置，將該位置保存為當前位置，并生成一個新的漫游結果下一次按下按鈕時的新位置。

//Starting area locations
    const startingAreaLocations = [Clearing, BigForrest, SmallForrest, Cliffs, Cave, Pond, Start, River, TownEnterance];
    const locationsNearStart = [BigForrest, Cliffs, Cave];
    const locationsNearBigForrest = [Start, Clearing, River];
    const locationsNearCliffs = [Start, Cave, River];
    const locationsNearCave = [Cliffs, Pond, River, Start];
    const locationsNearClearing = [BigForrest, River, Start];
    const locationsNearSmallForrest = [Pond, River, TownEnterance];
    const locationsNearPond = [SmallForrest, Cave, River];
    const locationsNearRiver = [BigForrest, Cliffs, Cave, Clearing, SmallForrest, Pond, TownEnterance];
    const locationsNearTowerEnterance = [SmallForrest, River];

我目前的問題是，當我生成并加載一個新位置時，我不知道如何告訴系統它應該為下一個位置參考哪個陣列。我嘗試命名變數，以便可以將位置名稱變數添加到字串并得到陣列名稱，但即使我將它放在 aJSON.parse()中，它也會讀取字串，而不是陣列的內容。

function wander(location) {
                wanderLocation = location[Math.floor(Math.random()*location.length)];
                console.log(wanderLocation);
                locationsNearCurrentArea = "locationsNear"   wanderLocation.name;
                console.log(locationsNearCurrentArea);
                
                callPannel(wanderLocation.string);
            }

我怎樣才能更好地制作一個能讓我在這樣的位置之間反彈的功能？

uj5u.com熱心網友回復：

我會為此使用顯式資料結構而不是一堆變數。以當前位置為鍵，以陣列中的附近位置為值的Map就足夠了

const nearbyLocations = new Map([
//[ key,        [ values, ... ] ],
  [ Start,      [ BigForrest, Cliffs, Cave ] ],
  [ BigForrest, [ Start, Clearing, River ] ],
  [ Cliffs,     [ Start, Cave, River ] ],
  // etc
])

然后你可以使用這樣的東西來獲得一個隨機的附近位置

const wander = (currentLocation) => {
  const nearby = nearbyLocations.get(currentLocation)
  return nearby?.[Math.floor(Math.random() * nearby?.length)]
}

uj5u.com熱心網友回復：

const objectOfArrays = {
  "startingAreaLocations":['Clearing', 'BigForrest', 'SmallForrest', 'Cliffs', 'Cave', 'Pond', 'Start', 'River', 'TownEnterance'],
    "locationsNearStart":['BigForrest', 'Cliffs', 'Cave'],
    "locationsNearBigForrest":['Start', 'Clearing', 'River'],
    "locationsNearCliffs":['Start', 'Cave', 'River'],
    "locationsNearCave":['Cliffs', 'Pond', 'River', 'Start'],
    "locationsNearClearing":['BigForrest', 'River', 'Start'],
    "locationsNearSmallForrest":['Pond', 'River', 'TownEnterance'],
    "locationsNearPond":['SmallForrest', 'Cave', 'River'],
    "locationsNearRiver":['BigForrest', 'Cliffs', 'Cave', 'Clearing', 'SmallForrest', 'Pond', 'TownEnterance'],
    "locationsNearTowerEnterance":['SmallForrest', 'River']
}

console.log(objectOfArrays['startingAreaLocations']);
console.log(objectOfArrays['startingAreaLocations'][0]);

uj5u.com熱心網友回復：

您應該至少將資料放在 JSON、物件或串列中。下面是一個使用物件的例子：

let data = {
  startingAreaLocations: ["Clearing", "BigForrest", "SmallForrest"],
  locationsNearStart: ["BigForrest", "Cliffs", "Cave"],
  locationsNearBigForrest: ["Start", "Clearing", "River"],
};
let newLocation = "River";
let newWander = ["SmallForrest", "BigForrest"];

let dataKey = Object.values(data);
data[Object.keys(data)[Object.keys(data).length - 1]].forEach((e) => {
  if (e === newLocation) {
    data[`locationsNear${e}`] = newWander;
  }
});

console.log(data);

標籤：javascript 数组 随机的

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