Added a movement controller, and added a demo scene

Assets/Scripts/PlayerController.cs

@@ -1,19 +1,31 @@
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
+using UnityEngine.InputSystem;
 
 public class PlayerController : MonoBehaviour
 {
-    Rigidbody rb;
+
+    Vector2 movementValue;
+    [SerializeField]
+    float speed;
+
+    [SerializeField]
+    Rigidbody2D rb;
     // Start is called before the first frame update
     void Start()
     {
 
     }
 
+    void OnMove(InputValue value)
+    {
+        this.movementValue = value.Get<Vector2>() * speed;
+    }
+
     // Update is called once per frame
     void Update()
     {
-
+        this.rb.AddForce(new Vector3(this.movementValue.x, 0, this.movementValue.y));
     }
 }