[Unity&C#]输入任意按键返回对应的字符串

本文参考 参考资料1，探究

 

按钮按下，调用函 数StartAssignment

public void StartAssignment(string keyName)
	{
		if(!waitingForKey)
		StartCoroutine(AssignKey(keyName));
	}

 

StarCoroutine 是开启一个协程，参考 参考资料2、3

 

进入协程函数

 

/*AssignKey takes a keyName as a parameter. The
	 * keyName is checked in a switch statement. Each
	 * case assigns the command that keyName represents
	 * to the new key that the user presses, which is grabbed
	 * in the OnGUI() function, above.
	 */
	public IEnumerator AssignKey(string keyName)
	{
		waitingForKey = true;

		yield return WaitForKey(); //Executes endlessly until user presses a key

		switch(keyName)
		{
		case "forward":
			GameManager.GM.forward = newKey; //Set forward to new keycode
			buttonText.text = GameManager.GM.forward.ToString(); //Set button text to new key
			PlayerPrefs.SetString("forwardKey", GameManager.GM.forward.ToString()); //save new key to PlayerPrefs
			break;
		case "backward":
			GameManager.GM.backward = newKey; //set backward to new keycode
			buttonText.text = GameManager.GM.backward.ToString(); //set button text to new key
			PlayerPrefs.SetString("backwardKey", GameManager.GM.backward.ToString()); //save new key to PlayerPrefs
			break;
		case "left":
			GameManager.GM.left = newKey; //set left to new keycode
			buttonText.text = GameManager.GM.left.ToString(); //set button text to new key
			PlayerPrefs.SetString("leftKey", GameManager.GM.left.ToString()); //save new key to playerprefs
			break;
		case "right":
			GameManager.GM.right = newKey; //set right to new keycode
			buttonText.text = GameManager.GM.right.ToString(); //set button text to new key
			PlayerPrefs.SetString("rightKey", GameManager.GM.right.ToString()); //save new key to playerprefs
			break;
		case "jump":
			GameManager.GM.jump = newKey; //set jump to new keycode
			buttonText.text = GameManager.GM.jump.ToString(); //set button text to new key
			PlayerPrefs.SetString("jumpKey", GameManager.GM.jump.ToString()); //save new key to playerprefs
			break;
		}

		yield return null;
	}

等待 按下任意键

 

协程函数

//Used for controlling the flow of our below Coroutine
	IEnumerator WaitForKey()
	{
		while(!keyEvent.isKey)
			yield return null;
	}

 

 

参考参考资料5
PlayerPrefs.SetString

 

 

Sets the value of the preference identified by key.

System.Enum.Parse参考参考资料4

 

 

typeof(KeyCode)

参考参考资料6

 

逻辑图

 

 

参考资料：

1.How To Build a Custom Input Manager in Unity C#

代码下载地址：https://www.dropbox.com/s/ch1f1g96wn1u9q1/InputManager.zip?dl=0

2.3.

 

[Unity&C#]协程实际案例

 

 

 

 

4.System.Enum.Parse

 

Enum 方法

 

http://blog.sina.com.cn/s/blog_8216ada70100t3d4.html

5.

PlayerPrefs.SetString

[Unity&]PlayerPrefs.GetString的使用案例

 

6.C# typeof() 和 GetType()区别

7.

8.