Unity C＃變量輸入

Question

我最近一直在看C＃。事情是：我有幾個同類運動的gameobjects接受不同的輸入，處於不同的層次，並被這些層上的多個敵人攻擊，所以，爲了節省我一些乏味的工作，我嘗試使用相同的運動腳本其中。我有一個腳本女巫估計字符串變量的不同文本，後來用於給出移動腳本的關鍵名稱。它在輸入時顯然不會給我錯誤，但它也不起作用，我不知道我想要做什麼是可能的，或者如果我寫錯了。我瘋了，但它合法。

這裏InputScript：

public string forward; 
public string backwards; 
public string hold; 
GameObject squadA; 
GameObject squadB; 
GameObject squadC; 
GameObject squadD; 

void Start() { 

    squadA = GameObject.Find ("Squad A"); 
    squadB = GameObject.Find ("Squad B"); 
    squadC = GameObject.Find ("Squad C"); 
    squadD = GameObject.Find ("Squad D"); 

    //A Input 
    if (gameObject == squadA) { 

     forward = "KeyCode.Alpha3"; 
     backwards = "KeyCode.Alpha1"; 
     hold = "KeyCode.Alpha2"; 
    } 

    //B Input 
    if (gameObject == squadB) { 

     forward = "KeyCode.E"; 
     backwards = "KeyCode.D"; 
      hold = "KeyCode.W"; 
    } 

    //C Input 
    if (gameObject == squadC) { 

      forward = "D"; 
      backwards = "A"; 
      hold = "S"; 
    } 

    //D Input 
    if (gameObject == squadD) { 

      forward = "C"; 
      backwards = "Z"; 
      hold = "X"; 
    } 
} 

和運行一個（我不認爲下半年是必要的，但以防萬一（運動是奇怪，但它是exacly一個我想要的））：

public float constantSpeed = 3; 
float counterConstantSpeed = -3; 
float speed; 
float spawnpos; 
public bool goingBackwardsOrStatic = true; 
public bool holding =false; 
KeyInput ScriptBeholderKI; 

void Start() { 

    spawnpos = transform.position.x; 
    ScriptBeholderKI = gameObject.GetComponent <KeyInput>(); 
} 

//Key inputs 

void Update() { 


    transform.Translate (constantSpeed * Time.deltaTime, 0, 0); 
    if (Input.GetKeyDown (ScriptBeholderKI.forward)) { 

     StopAllCoroutines(); 
     StartCoroutine (RightMovement(0f)); 
    } 

    if (Input.GetKeyDown (ScriptBeholderKI.backwards)) { 

     StopAllCoroutines(); 
     StartCoroutine (LeftMovement(0f)); 
    } 

    if (Input.GetKeyDown (ScriptBeholderKI.hold)) { 

     StopAllCoroutines(); 
     StartCoroutine (Hold(0f)); 
    } 
} 

//Movement itself (Right, Left, hold) 

IEnumerator RightMovement (float Rloop) { 

    while (transform.position.x < constantSpeed * Time.time + spawnpos + 16) { 

     goingBackwardsOrStatic = false; 
     speed = 10f; 
     transform.Translate (speed * Time.deltaTime, 0, 0); 
     yield return new WaitForSeconds (Rloop); 
    } 

    if (transform.position.x > constantSpeed * Time.time + spawnpos + 15.9) { 

     StopAllCoroutines(); 
     StartCoroutine (LeftMovement (0f)); 
    } 
} 

IEnumerator LeftMovement (float Lloop) { 

    goingBackwardsOrStatic = true; 
    while (transform.position.x > constantSpeed * Time.time + spawnpos) { 

     speed = -7f; 
     transform.Translate (speed * Time.deltaTime, 0, 0); 
     yield return new WaitForSeconds (Lloop); 
    } 
} 

IEnumerator Hold (float Lloop) { 

    holding = true; 
    while (transform.position.x > constantSpeed *Time.time + spawnpos) { 

     transform.Translate (counterConstantSpeed * Time.deltaTime, 0, 0); 
     yield return new WaitForSeconds (Lloop); 
    } 
} 

這給了我下面的錯誤以後玩家：

的ArgumentException：命名輸入關鍵字：KeyCode.Alpha3不明 UnityE ngine.Input.GetKeyDown（System.String name）（在C：/buildslave/unity/build/artifacts/generated/common/runtime/UnityEngineInputBindings.gen.cs：533） ASquadMovement.Update（）（在Assets/Scripts/Squad/Self behavoiurs/Squads movement/ASquadMovement.cs：26）

Answer 1

您正在共同製作「KeyCode.Alpha3」和其他不存在的值。你可以用enum或string做到這一點，但我認爲enum適合這個，因爲它確保存在KeyCode。

我在你KeyInput類，改變

public string forward; 
public string backwards; 
public string hold; 

到

public KeyCode forward; 
public KeyCode backwards; 
public KeyCode hold; 

如果然後更換你的整個用下面的代碼聲明：

//A Input 
if (gameObject == squadA) 
{ 

    forward = KeyCode.Alpha3; 
    backwards = KeyCode.Alpha1; 
    hold = KeyCode.Alpha2; 
} 

//B Input 
if (gameObject == squadB) 
{ 

    forward = KeyCode.E; 
    backwards = KeyCode.D; 
    hold = KeyCode.W; 
} 

//C Input 
if (gameObject == squadC) 
{ 

    forward = KeyCode.D; 
    backwards = KeyCode.A; 
    hold = KeyCode.S; 
} 

//D Input 
if (gameObject == squadD) 
{ 

    forward = KeyCode.C; 
    backwards = KeyCode.Z; 
    hold = KeyCode.X; 
} 

你需要學習C＃之前使用Unity或者你會犯這樣的簡單錯誤。這是一個enum tutorial。