Frame/Assets/Scripts/RayCast/MouseInput.cs

using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

namespace Game.RayCast
{
    public class MouseInput : MonoBehaviour
    {
        public RayCastType rayCastType = RayCastType._2D;

        MouseInputData mouseInputData = new MouseInputData();

//    public event MouseInputEventHandle ev;

        private void Update()
        {
            if (this.IsMouseOverUI()) return;

            switch (rayCastType)
            {
                case RayCastType._3D:
                    // 3d
                    Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                    RaycastHit hit;
                    if (Physics.Raycast(ray, out hit))
                    {
                        if (hit.collider != null)
                        {
                            Debug.Log(hit.collider.name);
                        }
                    }

                    break;
                case RayCastType._2D:
                    //2d
                    var point = Camera.main.ScreenToWorldPoint(Input.mousePosition);
                    var hit2D = Physics2D.Raycast(point, -Vector2.up);
                    if (hit2D.collider != null)
                    {
                        if (Input.GetMouseButtonDown(0))
                        {
                            UnityEngine.Debug.Log(hit2D.collider.name);
                            mouseInputData.rayCastType = this.rayCastType;
                            mouseInputData.point = hit2D.point;
                            mouseInputData.isPressDown = true;
                            mouseInputData.go = hit2D.collider.gameObject;
                            EventManager.Instance.FireNow(this, new InputObjectFinishEventArgs(mouseInputData));
                        }
                        else if (Input.GetMouseButtonDown(2))
                        {
//                        Game.bfsManager.Test(hit2D.point);
                        }
                    }

                    break;
                default:
                    throw new ArgumentOutOfRangeException();
            }
        }

        private bool IsMouseOverUI()
        {
            PointerEventData eventData = new PointerEventData(EventSystem.current)
            {
                position = Input.mousePosition
            };

            List<RaycastResult> results = new List<RaycastResult>();
            EventSystem.current.RaycastAll(eventData, results);

            foreach (var result in results)
            {
                // 检查射线检测到的对象是否为UI元素，并且是否属于CanvasGroup
                CanvasGroup canvasGroup = result.gameObject.GetComponentInParent<CanvasGroup>();

                if (canvasGroup != null)
                {
                    // 如果CanvasGroup不允许交互或不阻挡射线，我们认为鼠标不是位于UI上
                    if (!canvasGroup.interactable || !canvasGroup.blocksRaycasts)
                    {
                        continue;
                    }
                }

                // 如果找到至少一个允许交互且阻挡射线的UI元素，返回true
                return true;
            }

            // 如果所有射线检测到的UI元素都不允许交互或不阻挡射线，返回false
            return false;
        }
    }

    public enum RayCastType
    {
        _3D,
        _2D,
    }

    public class MouseInputData
    {
        public RayCastType rayCastType;
        public bool isPressDown;
        public Vector3 point;
        public GameObject go;
    }
}