you really gotta calm down, marisa...

Assets/Scripts/Entities/Entity.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+
+public class Entity : MonoBehaviour
+{
+    [Header("Identification")] 
+    public string entityName;
+    public SpriteRenderer sprite;
+    [Header("Flags")] 
+    public bool stalled;
+    public bool invincible;
+    [Header("Stats")]
+    public float health;
+    public float maxHealth;
+    [Header("Movement")] 
+    [SerializeField] private bool isFacingRight;
+    [SerializeField] protected Rigidbody2D rb;
+    protected Vector2 moveDirection;
+    public float speed;
+
+    protected void FlipSprite(Vector2 lookDirection)
+    {
+        if (lookDirection.x < 0f && isFacingRight)
+        {
+            sprite.flipX = true;
+            isFacingRight = !isFacingRight;
+        }
+        else if (lookDirection.x > 0f && !isFacingRight)
+        {
+            sprite.flipX = false;
+            isFacingRight = !isFacingRight;
+        }
+    }
+    protected virtual void FixedUpdate()
+    {
+        if (!stalled)
+        {
+            rb.linearVelocity = moveDirection * speed;
+        }
+    }
+    public void TakeDamage(float damage)
+    {
+        health -= damage;
+        if (health < 0)
+        {
+            OnKillEffects();
+        }
+    }
+    public void Heal(float healingAmount)
+    {
+        health += healingAmount;
+        health = Mathf.Clamp(health, 0, maxHealth);
+    }
+
+    protected virtual void OnKillEffects()
+    {
+        
+    }
+}