Add NPC and Power-Up features with associated prefabs and effects

Assets/Scripts/Infrastructure/Unity/NpcController.cs

@@ -0,0 +1,66 @@
+using System;
+using KBCore.Refs;
+using UnityEngine;
+using UnityEngine.AI;
+using Random = UnityEngine.Random;
+
+namespace Infrastructure.Unity
+{
+    [RequireComponent(typeof(Rigidbody))]
+    public class NpcController : MonoBehaviour
+    {
+        [SerializeField] private float moveSpeed = 6f;
+        [SerializeField] private float changeDirInterval = 1f;
+        [SerializeField] private LayerMask tileLayer;
+        
+        [Self] [SerializeField] private Rigidbody rb;
+        
+        private Vector3 _currentDir;
+        private float _timer;
+
+        private void Awake()
+        {
+            PickNewDirection();
+        }
+        
+        private void Update()
+        {
+            _timer += Time.deltaTime;
+            if (_timer >= changeDirInterval)
+            {
+                _timer = 0;
+                PickNewDirection();
+            }
+        }
+        
+        private void FixedUpdate()
+        {
+            if (IsGrounded()) rb.MovePosition(rb.position + _currentDir * (moveSpeed * Time.fixedDeltaTime));
+            
+            if (Physics.Raycast(transform.position, Vector3.down, out var hit, 1.5f, tileLayer))
+            {
+                if (hit.collider.TryGetComponent<TileViewAdapter>(out var tile))
+                {
+                    tile.OnPlayerStep();
+                }
+            }
+        }
+
+        private bool IsGrounded()
+        {
+            return Physics.Raycast(transform.position, Vector3.down, out var hit, 1.15f, tileLayer);
+        }
+        
+        private void PickNewDirection()
+        {
+            var rand = Random.Range(0, 4);
+            switch (rand)
+            {
+                case 0: _currentDir = Vector3.forward; break;
+                case 1: _currentDir = Vector3.back; break;
+                case 2: _currentDir = Vector3.left; break;
+                case 3: _currentDir = Vector3.right; break;
+            }
+        }
+    }
+}