using UnityEngine; using System.Collections; public class PlayerController1 : MonoBehaviour { public GameObject circlePrefab; //光圈预制体，需要提前准备好 private GameObject currentCircle; //当前生成的光圈 private Vector3 targetPos; //目标位置 private bo...-DPDK中文网

好的，修改后的代码如下：

using UnityEngine;
using System.Collections;

public class PlayerController1 : MonoBehaviour
{
    public GameObject circlePrefab; //光圈预制体，需要提前准备好
    private GameObject currentCircle; //当前生成的光圈
    private Vector3 targetPos; //目标位置
    private bool facingRight = true; // 是否面向右侧

    Coroutine currentCoroutine;

    void Update()
    {
        if (Input.touchCount > 0) //检测是否有触摸事件发生
        {
            Touch touch = Input.GetTouch(0); //获取第一个触点的信息

            switch (touch.phase)
            {
                case TouchPhase.Began:
                    if (IsTouchedOnPlayer(touch.position)) //如果触摸到角色，则在角色脚下生成光圈，并返回，不进行移动操作
                        return;
                    else
                        currentCircle = Instantiate(circlePrefab, transform.position, Quaternion.identity);
                    break;

                case TouchPhase.Moved:
                    if (currentCircle != null) //如果有光圈，则在手指移动的位置生成另外一个光圈（不移动角色）
                    {
                        Vector3 touchPos = Camera.main.ScreenToWorldPoint(touch.position); //将屏幕坐标转换为世界坐标
                        touchPos.z = 0;
                        currentCircle.transform.position = touchPos;
                    }
                    break;

                case TouchPhase.Ended:
                case TouchPhase.Canceled: 
                    if (currentCircle != null)
                        Destroy(currentCircle);

                    Collider2D col = GetComponent<Collider2D>();
                    Vector2 touchPos = Camera.main.ScreenToWorldPoint(touch.position);
                    if (col == Physics2D.OverlapPoint(touchPos)) //如果结束时还在角色身上，则直接返回，不进行移动操作
                        return;

                    targetPos = touchPos; //将屏幕坐标转换为世界坐标，作为目标位置
                    targetPos.z = 0;

                    if (currentCoroutine != null)
                        StopCoroutine(currentCoroutine);

                    currentCoroutine = StartCoroutine(MoveToTarget());
                    break;
            }
        }
    }

    bool IsTouchedOnPlayer(Vector2 touchPos)
    {
        Collider2D col = GetComponent<Collider2D>();
        return col == Physics2D.OverlapPoint(touchPos); //如果触摸点在角色collider范围内，则认为触摸在角色身上
    }

    IEnumerator MoveToTarget()
    {
        float moveSpeed = 5f; // 固定速度为5米/秒
        float bufferTime = 0.1f; // 缓冲时间为0.5秒
        Vector3 targetDir;

        while (Vector3.Distance(transform.position, targetPos) > 0.1f)
        {
            targetDir = (targetPos - transform.position).normalized; // 计算目标方向
            if (targetDir.x > 0 && !facingRight)
            {
                Flip();
            }
            else if (targetDir.x < 0 && facingRight)
            {
                Flip();
            }

            if (Vector3.Distance(transform.position, targetPos) < bufferTime * moveSpeed)
            {
                transform.position = targetPos;
                yield break;
            }

            transform.position = Vector3.MoveTowards(transform.position, targetPos, moveSpeed * Time.deltaTime);

            yield return null;
        }
    }

    void Flip()
    {
        facingRight = !facingRight;

        Vector3 scale = transform.localScale;
        scale.x *= -1;
        transform.localScale = scale;
    }
}

需要注意的是，修改判断条件后，不再需要使用Vector2.Distance函数计算距离。同时，在End和Cancel状态下，都需要进行角色collider2d的检测。