Initial Unity prototype

Assets/Scripts/CartGrabAndPush.cs

@@ -0,0 +1,54 @@
+using UnityEngine;
+
+public class CartGrabAndHold : MonoBehaviour
+{
+    public float holdDistance = 1.5f;     // Distance in front of player
+    public float moveSpeed = 5f;          // How fast the cart follows
+    public float floatHeight = 0.5f;      // Height above the ground to simulate wheels
+
+    private bool isHolding = false;       // Whether the cart is currently held
+    private Transform player;             // The transform of the player
+    private Rigidbody rb;                 // Cart's rigidbody
+
+    void Start()
+    {
+        rb = GetComponent<Rigidbody>();
+    }
+
+    // Called by PlayerGrabber when grabbing
+    public void GrabCart(Transform playerTransform)
+    {
+        isHolding = true;
+        player = playerTransform;
+        rb.isKinematic = true;  // Disable physics for smooth movement
+    }
+
+    // Called by PlayerGrabber when releasing
+    public void ReleaseCart()
+    {
+        isHolding = false;
+        rb.isKinematic = false; // Re-enable physics
+        player = null;
+    }
+
+    // Used by PlayerGrabber to keep cart following the player
+    public void HoldCart()
+    {
+        if (!isHolding || player == null) return;
+
+        // Target position is in front of the player on X/Z, floating above ground
+        Vector3 targetPosition = player.position + player.forward * holdDistance;
+        targetPosition.y = floatHeight;
+
+        // Smoothly move cart toward target
+        transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * moveSpeed);
+
+        // Face the same direction as the player
+        transform.rotation = Quaternion.LookRotation(player.forward);
+    }
+
+    public bool IsHolding()
+    {
+        return isHolding;
+    }
+}