Base done

Assets/Scripts/Enemy1.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Enemy1 : MonoBehaviour {
+    [SerializeField] float speed;
+
+    [SerializeField] LayerMask groundLayer;
+
+    [Header("Flipping Pivots")] 
+    [SerializeField] Transform flippingPivotLeft;
+    [SerializeField] Transform flippingPivotRight;
+
+    int _facingDirection = 1;
+    Rigidbody2D _rb;
+    
+    // Start is called before the first frame update
+    void Awake() {
+        _rb = GetComponent<Rigidbody2D>();
+    }
+
+    // Update is called once per frame
+    void FixedUpdate() {
+        if (_facingDirection > 0) {
+            if (Physics2D.OverlapBox(flippingPivotRight.position, flippingPivotRight.localScale, 0, groundLayer)) {
+                _facingDirection = -1;
+                transform.localScale = new Vector3(-1, 1, 1);
+            }
+        }else {
+            if (Physics2D.OverlapBox(flippingPivotLeft.position, flippingPivotLeft.localScale, 0, groundLayer)) {
+                _facingDirection = 1;
+                transform.localScale = Vector3.one;
+            }
+        }
+        _rb.velocity = new Vector2(speed * _facingDirection, _rb.velocity.y);
+    }
+
+    void OnDrawGizmos() {
+        if(!flippingPivotLeft || !flippingPivotRight) return;
+
+        Gizmos.color = Color.red;
+        
+        Gizmos.DrawWireCube(flippingPivotLeft.position, flippingPivotLeft.localScale);
+        Gizmos.DrawWireCube(flippingPivotRight.position, flippingPivotRight.localScale);
+    }
+}