Added project

Platformer/Assets/Scripts/EnemyPatrol.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using Random = UnityEngine.Random;
+
+public class EnemyPatrol : MonoBehaviour {
+
+    [SerializeField] private GameObject leftBorder;
+    [SerializeField] private  GameObject rightBorder;
+    [SerializeField] private float speed;
+    [SerializeField] private Rigidbody2D _rigidbody;
+    [SerializeField] private SpriteRenderer spriteRender;
+    [SerializeField] private CollisionDamage collisionDamage;
+    [SerializeField] private GroundDetection groundDetection;
+    [SerializeField] private Animator animator;
+    
+    private bool m_IsRightDirection;
+    
+    private void Update() {
+        if (groundDetection.isGrounded) {
+            if (transform.position.x > rightBorder.transform.position.x || collisionDamage.direction < 0) {
+                m_IsRightDirection = false;
+            } else if (transform.position.x < leftBorder.transform.position.x || collisionDamage.direction > 0) {
+                m_IsRightDirection = true;
+            }
+            _rigidbody.velocity = m_IsRightDirection ? Vector2.right : Vector2.left;
+            _rigidbody.velocity *= speed;
+        }
+        if (_rigidbody.velocity.x > 0) {
+            spriteRender.flipX = true;
+        }
+        if (_rigidbody.velocity.x < 0) {
+            spriteRender.flipX = false;
+        }
+    }
+}