UNITY - 如何对长按和单击 click/double 执行不同的操作？

Question

所以我正在制作一个 2D 角色控制器，如果按住鼠标（长按），玩家可以设置他想要发射射弹的方向，以及射弹何时发射并与物体发生碰撞玩家可以单击一次（如果更好，则双击）以将角色的位置交换到射弹的位置。我正在尝试使用 Input.onMouseButton 和 Input.onMouseButtonDown 来做到这一点，但我真的想不通。感谢所有帮助我的人！

Answer 1

据我从文档和论坛中得知，您需要使用 Input.GetMouseButtonDown 和自第一次按下后经过的时间来检查，例如 so.

Answer 2

除了获取带有按钮的 GetMouseButtonDown(int) 之外，您要跟踪请记住检查按钮处于哪个阶段。

TouchPhase

Answer 3

对于长时间点击，您只需测量自第一次点击后经过的时间。这是一个例子：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class LongClick : MonoBehaviour
{
    public float ClickDuration = 2;
    public UnityEvent OnLongClick;

    bool clicking = false;
    float totalDownTime = 0;


    // Update is called once per frame
    void Update()
    {
        // Detect the first click
        if (Input.GetMouseButtonDown(0))
        {
            totalDownTime = 0;
            clicking = true;
        }

        // If a first click detected, and still clicking,
        // measure the total click time, and fire an event
        // if we exceed the duration specified
        if (clicking && Input.GetMouseButton(0))
        {
            totalDownTime += Time.deltaTime;

            if (totalDownTime >= ClickDuration)
            {
                Debug.Log("Long click");
                clicking = false;
                OnLongClick.Invoke();
            }
        }

        // If a first click detected, and we release before the
        // duraction, do nothing, just cancel the click
        if (clicking && Input.GetMouseButtonUp(0))
        {
            clicking = false;
        }
    }
}

对于双击，您只需要检查是否在指定的（短）间隔内发生第二次点击：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class DoubleClick : MonoBehaviour
{
    public float DoubleClickInterval = 0.5f;
    public UnityEvent OnDoubleClick;

    float secondClickTimeout = -1;

    void Update()
    {

        if (Input.GetMouseButtonDown(0))
        {
            if (secondClickTimeout < 0)
            {
                // This is the first click, calculate the timeout
                secondClickTimeout = Time.time + DoubleClickInterval;
            }
            else
            {
                // This is the second click, is it within the interval 
                if (Time.time < secondClickTimeout)
                {
                    Debug.Log("Double click!");

                    // Invoke the event
                    OnDoubleClick.Invoke();

                    // Reset the timeout
                    secondClickTimeout = -1;
                }
            }

        }

        // If we wait too long for a second click, just cancel the double click
        if (secondClickTimeout > 0 && Time.time >= secondClickTimeout)
        {
            secondClickTimeout = -1;
        }

    }
}

UNITY - 如何对长按和单击 click/double 执行不同的操作？

UNITY - How to perform a different action for Long click and a single click/double click?

position

mouseevent

onmousedown

collision

unity3d