using System.Collections.Generic;
using UnityEngine;

public class Nodes : MonoBehaviour
{
    public LayerMask obstacleLayer;
    public List<Vector2> availableDirections { get; private set;}

    private void Start() 
    {
        this.availableDirections = new List<Vector2>();

        checkAvailableDirection(Vector2.up);
        checkAvailableDirection(Vector2.down);
        checkAvailableDirection(Vector2.left);
        checkAvailableDirection(Vector2.right);

    }
    private void checkAvailableDirection(Vector2 direction)
    {
            RaycastHit2D hit = Physics2D.BoxCast(this.transform.position, Vector2.one * 0.5f, 0.0f, direction, 1.0f, this.obstacleLayer);

            if(hit.collider == null)
            {
                this.availableDirections.Add(direction);
            }
    }
    
        
    

}