first commit

Assets/Scripts/CursorSwitcher.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class CursorSwitcher : MonoBehaviour
+{
+    [SerializeField] private Texture2D defaultCursor;
+    [SerializeField] private Texture2D targetCursor;
+    [SerializeField] private Texture2D knobCursor;
+    [SerializeField] private Texture2D liquidCursor;
+    [SerializeField] private float interactDistance = 3f;
+    public float InteractDistance => interactDistance;
+    [SerializeField] private LayerMask interactMask = ~0;
+    [SerializeField] private HandController handController;
+
+    private Camera _camera;
+    private bool _isTargeting;
+
+    void Start()
+    {
+        _camera = GetComponent<Camera>();
+        Cursor.visible = true;
+        Cursor.lockState = CursorLockMode.None;
+        SetDefaultCursor();
+    }
+
+    void Update()
+    {
+        Ray ray = _camera.ScreenPointToRay(Input.mousePosition);
+        RaycastHit[] hits = Physics.RaycastAll(ray, interactDistance, interactMask);
+        bool holding = handController != null && handController.IsHoldingAny();
+
+        bool hasTarget = false;
+        bool hasLiquid = false;
+        bool hasBreakable = false;
+        bool hasScale = false;
+        bool hasKnob = false;
+
+        foreach (var hit in hits)
+        {
+            Transform current = hit.collider.transform;
+            while (current != null)
+            {
+                if (current.CompareTag("Target")) hasTarget = true;
+                if (current.CompareTag("Liquid")) hasLiquid = true;
+                if (current.CompareTag("Breakable")) hasBreakable = true;
+                if (holding && current.CompareTag("Scale")) hasScale = true;
+                if (current.CompareTag("Knob") || current.CompareTag("Drawer") || current.CompareTag("Door")) hasKnob = true;
+                current = current.parent;
+            }
+        }
+
+        if (hasTarget || hasBreakable || hasScale)
+        {
+            SetTargetCursor(); _isTargeting = true;
+        }
+        else if (hasLiquid)
+        {
+            SetLiquidCursor(); _isTargeting = true;
+        }
+        else if (hasKnob)
+        {
+            SetKnobCursor(); _isTargeting = true;
+        }
+        else if (_isTargeting)
+        {
+            SetDefaultCursor();
+            _isTargeting = false;
+        }
+    }
+
+
+    void SetDefaultCursor()
+    {
+        if (defaultCursor != null)
+            Cursor.SetCursor(defaultCursor, new Vector2(16, 16), CursorMode.Auto);
+    }
+
+    void SetTargetCursor()
+    {
+        if (targetCursor != null)
+            Cursor.SetCursor(targetCursor, new Vector2(16, 16), CursorMode.Auto);
+    }
+
+    void SetKnobCursor()
+    {
+        if (knobCursor != null)
+            Cursor.SetCursor(knobCursor, new Vector2(16, 16), CursorMode.Auto);
+    }
+
+    void SetLiquidCursor()
+    {
+        if (liquidCursor != null)
+            Cursor.SetCursor(liquidCursor, new Vector2(16, 16), CursorMode.Auto);
+        else
+            SetTargetCursor();
+    }
+}