refactor(): 使用第一人称射线检测来替换掉可交互和可编辑种重合的部分

2025-10-18 17:14:09 +08:00
parent b709d1219f
commit 462a3b5850
6 changed files with 161 additions and 93 deletions
--- a/Assets/Script/Gameplay/Player/FirstPersonRaycaster.cs
+++ b/Assets/Script/Gameplay/Player/FirstPersonRaycaster.cs
@@ -0,0 +1,72 @@
+using UnityEngine;
+
+namespace Gameplay.Player
+{
+    /// <summary>
+    /// 通用第一人称射线检测，获取玩家注视的 GameObject。
+    /// </summary>
+    public class FirstPersonRaycaster : MonoBehaviour
+    {
+        [Header("Raycast Settings")]
+        [SerializeField] private float rayLength = 15f;
+        [SerializeField] private LayerMask layerMask = ~0; // 默认检测所有层
+        [SerializeField] private Camera playerCamera;
+        [SerializeField] private bool drawGizmos = true;
+
+        /// <summary>
+        /// 当前玩家注视的 GameObject（只读）。
+        /// </summary>
+        public GameObject CurrentLookAtObject { get; private set; }
+
+        void Awake()
+        {
+            if (playerCamera == null)
+            {
+                var camObj = GameObject.FindWithTag("MainCamera");
+                if (camObj != null)
+                    playerCamera = camObj.GetComponent<Camera>();
+            }
+        }
+
+        void Update()
+        {
+            UpdateLookAtObject();
+        }
+
+        private void UpdateLookAtObject()
+        {
+            if (playerCamera == null)
+            {
+                CurrentLookAtObject = null;
+                return;
+            }
+            Ray ray = new Ray(playerCamera.transform.position, playerCamera.transform.forward);
+            if (Physics.Raycast(ray, out RaycastHit hit, rayLength, layerMask))
+            {
+                CurrentLookAtObject = hit.collider.gameObject;
+            }
+            else
+            {
+                CurrentLookAtObject = null;
+            }
+        }
+
+        void OnDrawGizmos()
+        {
+            if (!drawGizmos) return;
+            Camera cam = playerCamera;
+            if (cam == null && Application.isPlaying == false)
+            {
+                var camObj = GameObject.FindWithTag("MainCamera");
+                if (camObj != null)
+                    cam = camObj.GetComponent<Camera>();
+            }
+            if (cam == null) return;
+            Gizmos.color = Color.cyan;
+            Vector3 origin = cam.transform.position;
+            Vector3 dir = cam.transform.forward * rayLength;
+            Gizmos.DrawLine(origin, origin + dir);
+        }
+    }
+}
+