Hallucination system

Assets/Unheimlich_POC/Scripts/Features/DetectiveBoard/UI/DetectiveBoardInteraction.cs

@@ -1,6 +1,7 @@
 using UnityEngine;
 using UnityEngine.InputSystem;
 using UnityEngine.UI;
+using Unheimlich.Core;
 using Unheimlich.Features.DetectiveBoard;
 using Unheimlich.Features.Player;
 using Unheimlich.World.CameraSystem;
@@ -14,7 +15,7 @@ namespace Unheimlich.Features.DetectiveBoard.UI
     /// Manages hover, selection, dragging, and click forwarding for Post-It nodes.
     /// Interactions are only active when the board is in inspection mode.
     /// </summary>
-    public class DetectiveBoardInteraction : MonoBehaviour
+    public class DetectiveBoardInteraction : Singleton<DetectiveBoardInteraction>
     {
         [Header("Settings")]
         [SerializeField] private LayerMask _boardLayer;
@@ -33,6 +34,8 @@ namespace Unheimlich.Features.DetectiveBoard.UI
         private Plane _canvasPlane;
         private Vector3 _dragOffset;
         
+        protected override void OnAwake() { }
+
         private void Start()
         {
             _boardCanvas = GetComponent<Canvas>();
@@ -349,6 +352,41 @@ namespace Unheimlich.Features.DetectiveBoard.UI
             }
         }
         
+        /// <summary>
+        /// Positions a freshly-created board node under the current mouse cursor
+        /// and immediately enters drag mode on it, so the player can place it freely.
+        /// Called by ClueHandUI after AddClueNode.
+        /// </summary>
+        public void SpawnNodeUnderMouseAndDrag(PostItNode node)
+        {
+            if (node == null || _camera == null)
+                return;
+
+            UpdateCanvasPlane();
+
+            Vector2 mousePos = Mouse.current != null
+                ? Mouse.current.position.ReadValue()
+                : new Vector2(Screen.width * 0.5f, Screen.height * 0.5f);
+
+            Ray ray = _camera.ScreenPointToRay(new Vector3(mousePos.x, mousePos.y, 0f));
+
+            if (_canvasPlane.Raycast(ray, out float enter))
+            {
+                Vector3 worldHitPoint = ray.GetPoint(enter);
+                Vector3 localPos = _boardCanvas.transform.InverseTransformPoint(worldHitPoint);
+                node.SetPosition(new Vector2(localPos.x, localPos.y));
+            }
+
+            // Begin drag with zero offset so the node centre tracks the mouse exactly
+            if (_selectedNode != null)
+                _selectedNode.SetSelected(false);
+
+            _selectedNode = node;
+            _selectedNode.SetSelected(true);
+            _isDragging = true;
+            _dragOffset = Vector3.zero;
+        }
+
         private PostItNode RaycastForNode()
         {
             if (_camera == null || Mouse.current == null)