使用右箭头键更新相机位置

Question

你好，我在下面的代码中，我正在使用UI Buttons更新我的相机位置，这很正常，我想要执行相同的过程，但是通过按向右箭头键，例如，如果我按向右箭头键，相机会将其位置更改为指向然后停在A位置，当我再次按相同的箭头键时，相机会将其位置更改为B点，因为在代码中，我在不同的ui按钮上调用了不同的功能，所以谢谢，这是我的代码

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Answer 1

据我了解，您有一个普通的UI.Button组件，现在想在某个键盘键上执行与onClick中的此按钮相同的操作。

解决方案1：扩展按钮

通过在按钮对象上的Button组件旁边放置以下组件，我将简单地在获得某个onClick之后调用Button的KeyCode事件（相机）

using UnityEngine;

// make sure you are not accidentely using 
// UnityEngine.Experimental.UIElements.Button
using UnityEngine.UI;

[RequireComponent(typeof(Button))]
public class KeyboardButton : MonoBehaviour
{
    // Which key should this Button react to?
    // Select this in the inspector for each Button
    public KeyCode ReactToKey;
    private Button _button;

    private void Awake()
    {
        _button = GetComponent<Button>();
    }

    // Wait for the defined key
    private void Update()
    {
        // If key not pressed do nothing
        if (!Input.GetKeyDown(ReactToKey)) return;

        // This simply tells the button to execute it's onClick event
        // So it does exactly the same as if you would have clicked it in the UI
        _button.onClick.Invoke();
    }
}

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解决方案2：装回按钮

或者，如果您完全不想使用Button，则可以添加自己的UnityEvent，例如OnPress改为上述脚本

using UnityEngine;
using UnityEngine.Events;

public class KeyboardButton : MonoBehaviour
{
    // Which key should this Button react to?
    // Select this in the inspector for each Button
    public KeyCode ReactToKey;

    // reference the target methods here just as 
    // you would do with the Button's onClick
    public UnityEvent OnPress;

    // Wait for the defined key
    private void Update()
    {
        // If key not pressed do nothing
        if (!Input.GetKeyDown(ReactToKey)) return;

        OnPress.Invoke();
    }
}