[Player] Add AI Pathfinding on a 2D grid to the player character

Assets/Scripts/PlayerTouchController.cs

@@ -2,6 +2,7 @@
 #if ENABLE_INPUT_SYSTEM
 using UnityEngine.InputSystem;
 #endif
+using Pathfinding; // Add this at the top
 
 // Basic touch/mouse movement controller suitable for top-down 2D or 3D overworld
 // Attach to the player GameObject. Works with or without Rigidbody/Rigidbody2D.
@@ -9,8 +10,6 @@ public class PlayerTouchController : MonoBehaviour, ITouchInputConsumer
 {
     public float moveSpeed = 5f;
     public float stopDistance = 0.1f;
-
-    // If true and a Rigidbody/Rigidbody2D is present, movement will use physics MovePosition.
     public bool useRigidbody = true;
 
     Vector3 targetPosition;
@@ -18,11 +17,13 @@ public class PlayerTouchController : MonoBehaviour, ITouchInputConsumer
 
     Rigidbody rb3d;
     Rigidbody2D rb2d;
+    AIPath aiPath; // Reference to AIPath
 
     void Awake()
     {
         rb3d = GetComponent<Rigidbody>();
         rb2d = GetComponent<Rigidbody2D>();
+        aiPath = GetComponent<AIPath>(); // Get AIPath component
     }
 
     void Start()
@@ -58,58 +59,16 @@ public class PlayerTouchController : MonoBehaviour, ITouchInputConsumer
         Debug.Log($"PlayerTouchController.SetTargetPosition: worldPosition={worldPosition}");
         targetPosition = new Vector3(worldPosition.x, worldPosition.y, transform.position.z);
         hasTarget = true;
-    }
-
-    void FixedUpdate()
-    {
-        if (hasTarget)
+        if (aiPath != null)
         {
-            MoveTowardsTarget();
-        }
-    }
-
-    void MoveTowardsTarget()
-    {
-        // Keep original y (or z for 2D) depending on scene setup. We assume the player moves on the plane defined by its current transform.
-        Vector3 current = transform.position;
-
-        // Create a target that preserves the movement plane (so we don't change vertical axis unexpectedly)
-        Vector3 planarTarget = targetPosition;
-
-        // If the camera is orthographic top-down (y is up), preserve y
-        // Heuristic: if camera forward is (0,-1,0) then y is up and we should preserve y
-        Camera cam = Camera.main;
-        if (cam != null && Vector3.Dot(cam.transform.forward, Vector3.down) > 0.5f)
-        {
-            planarTarget.y = current.y;
+            aiPath.destination = targetPosition;
+            Debug.Log($"AIPath destination set to {targetPosition}");
         }
         else
         {
-            // Otherwise assume z is depth for 2D setups and preserve z
-            planarTarget.z = current.z;
-        }
-
-        float step = moveSpeed * Time.deltaTime;
-        Vector3 next = Vector3.MoveTowards(current, planarTarget, step);
-
-        // If using Rigidbody, move via physics when present
-        if (useRigidbody && rb2d != null)
-        {
-            rb2d.MovePosition(new Vector2(next.x, next.y));
-            transform.position = new Vector3(next.x, next.y, transform.position.z); // ensure transform matches
-        }
-        else if (useRigidbody && rb3d != null)
-        {
-            rb3d.MovePosition(next);
-        }
-        else
-        {
-            transform.position = next;
-        }
-
-        if (Vector3.Distance(transform.position, planarTarget) <= stopDistance)
-        {
-            hasTarget = false;
+            Debug.LogWarning("AIPath component not found, falling back to direct movement");
         }
     }
+
+    // Remove FixedUpdate and MoveTowardsTarget, as AIPath handles movement
 }