using System;
using UnityEngine;

public class Projectile : MonoBehaviour
{
	[Header("Base Stats")] 
	public float lifetime;
	public float damage;

	[Header("Piercing")] 
	public int pierceAmount;
	public int currentPierce;
	
	[Header("Movement")] 
	[SerializeField] private Rigidbody2D rb;
	public float speed;

	private void Start()
	{
		Destroy(gameObject, lifetime);
	}

	private void FixedUpdate()
	{
		rb.linearVelocity = transform.right * speed;
	}

	protected void OnTriggerEnter2D(Collider2D other)
	{
		if (!other.CompareTag(tag) && other.TryGetComponent(out CombatEntity isEntity))
		{
			currentPierce++;
			isEntity.TakeDamage(damage);
			if (currentPierce > pierceAmount) //if 0 then no one pierced. if 1 then can pierce 1 enemy and gets destroyed by second enemy, and so on...
			{
				Destroy(gameObject);
			}
		}
	}
}