using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnemyCharge : BaseEnemy
{
	public float DetectionDistance;
	public float ChargeSpeed;
	public bool Charging = false;
	public LayerMask lm;
	public bool FallOffLedge = false;

	void FixedUpdate()
	{
		Vector2 fwd;
		if (!sr.flipX) {
			// Raycast to check if player is in front with layermask to prevent it from detecting itself
			fwd = transform.TransformDirection (Vector2.right);
		} else {
			fwd = transform.TransformDirection (Vector2.left);
		}
		RaycastHit2D hit;
		Debug.DrawRay (transform.position, fwd);
		hit = Physics2D.Raycast (transform.position, fwd, DetectionDistance, lm);

		if (hit)
		{
			if (hit.collider.gameObject.CompareTag ("Player"))
			{//If it sees an object with tag "Player", Charging will be true
				Charging = true;
			}
		}
			
		if (Charging) 
		{ //Will stop or keep going based on FallOffLedge bool
			if (!FallOffLedge) {
				if (!CheckCollision (fwd, sr.flipX ? leftCollisionPos.position : rightCollisionPos.position)) {
					Charging = false;
					return;
				}
			} else {
				if (!CheckCollisionCharge (fwd, sr.flipX ? leftCollisionPos.position : rightCollisionPos.position)) {
					Charging = false;
					return;
				}
			}
			Move (fwd);
			speed = ChargeSpeed;
		}
	}
}