Trying to collide in grid like movement

Questions & Answers
1

Haven’t played around with Unity in a while, this is probably simple, but I haven’t tried the tutorials in a while. I’m trying to make a small FF/Dragon Quest like RPG. I’m trying to get a character to move, in a grid-like way, which I succeded thanks to a youtube tutorial.
I’m having dificulties getting my character to not go through walls. This is a 2D project, I imported a map with Tiled2Unity, so the walls are Polygon Collider 2D. This is my PlayerMovement script so far.

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

public enum DIRECTION { UP, DOWN, LEFT, RIGHT }

public class PlayerMovement : MonoBehaviour {

	public int speed = 5;
	private int buttonCooldown = 0;
	private bool canMove = true; 
	private bool moving = false;
	private DIRECTION dir = DIRECTION.DOWN;
	private Vector3 pos;

	// Use this for initialization
	void Start () {
		
	}
    
	void OnTriggerEnter2D(Collider2D other){
		if (other.tag == "Wall")
			canMove = false;
	}

	// Update is called once per frame
	void Update () {
		buttonCooldown--;
		if (canMove) {
			pos = transform.position;
			move ();
		}

		if (moving) {
			if (transform.position == pos) {
				moving = false;
				canMove = true;
				move ();
			}
			transform.position = Vector3.MoveTowards (transform.position, pos, Time.deltaTime * speed);
		}
	}

	private void move(){
		if (buttonCooldown <= 0) {
			if (Input.GetKey (KeyCode.UpArrow)) {
				if (dir != DIRECTION.UP) {
					buttonCooldown = 5;
					dir = DIRECTION.UP;
				} else {
					canMove = false;
					moving = true;
					pos += Vector3.up;
				}
			} else if (Input.GetKey (KeyCode.DownArrow)) {
				if (dir != DIRECTION.DOWN) {
					buttonCooldown = 5;
					dir = DIRECTION.DOWN;
				} else {
					canMove = false;
					moving = true;
					pos += Vector3.down;
				}
			} else if (Input.GetKey (KeyCode.LeftArrow)) {
				if (dir != DIRECTION.LEFT) {
					buttonCooldown = 5;
					dir = DIRECTION.LEFT;
				} else {
					canMove = false;
					moving = true;
					pos += Vector3.left;
				}
			
			} else if (Input.GetKey (KeyCode.RightArrow)) {
				if (dir != DIRECTION.RIGHT) {
					buttonCooldown = 5;
					dir = DIRECTION.RIGHT;
				} else {
					canMove = false;
					moving = true;
					pos += Vector3.right;
				}
			}
		}
	}
}

So, once my character hits a wall, he can’t move anymore. It’s probably really simple, just haven’t worked with this in a while, trying to get some more training in the summer, so appreciate the help.

2

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

public enum DIRECTION { UP, DOWN, LEFT, RIGHT }

public class PlayerMovement : MonoBehaviour {

	public int speed = 5;
	private int buttonCooldown = 0;
	private bool canMove = true; 
	private bool moving = false;
	private DIRECTION dir = DIRECTION.DOWN;
	private Vector3 pos;

	// Use this for initialization
	void Start () {
		
	}
  
	// Update is called once per frame
	void Update () {
		buttonCooldown--;
		if (canMove) {
			pos = transform.position;
			move ();
		}

		if (moving) {
			if (transform.position == pos) {
				moving = false;
				canMove = true;
				move ();
			}
			transform.position = Vector3.MoveTowards (transform.position, pos, Time.deltaTime * speed);
		}
	}

	private void move(){
		if (buttonCooldown <= 0) {
			if (Input.GetKey (KeyCode.UpArrow)) {
				if (dir != DIRECTION.UP) {
					buttonCooldown = 5;
					dir = DIRECTION.UP;
				} else if (noWall(DIRECTION.UP)){
					canMove = false;
					moving = true;
					pos += Vector3.up;
				}
			} else if (Input.GetKey (KeyCode.DownArrow)) {
				if (dir != DIRECTION.DOWN) {
					buttonCooldown = 5;
					dir = DIRECTION.DOWN;
				} else if (noWall(DIRECTION.DOWN)){
					canMove = false;
					moving = true;
					pos += Vector3.down;
				}
			} else if (Input.GetKey (KeyCode.LeftArrow)) {
				if (dir != DIRECTION.LEFT) {
					buttonCooldown = 5;
					dir = DIRECTION.LEFT;
				} else if (noWall(DIRECTION.LEFT)) {
					canMove = false;
					moving = true;
					pos += Vector3.left;
				}
			
			} else if (Input.GetKey (KeyCode.RightArrow)) {
				if (dir != DIRECTION.RIGHT) {
					buttonCooldown = 5;
					dir = DIRECTION.RIGHT;
				} else if (noWall(DIRECTION.RIGHT)){
					canMove = false;
					moving = true;
					pos += Vector3.right;
				}
			}
		}
	}

	private bool noWall(DIRECTION dir){
		RaycastHit2D hitUp = Physics2D.Raycast(transform.position, Vector2.up, 1);
		RaycastHit2D hitDown = Physics2D.Raycast(transform.position, Vector2.down, 1);
		RaycastHit2D hitRight = Physics2D.Raycast(transform.position, Vector2.right, 1);
		RaycastHit2D hitLeft = Physics2D.Raycast(transform.position, Vector2.left, 1);
		if (dir == DIRECTION.UP && hitUp.collider == null){
			return true;
		}
		if (dir == DIRECTION.DOWN && hitDown.collider == null){
			return true;
		}
		if (dir == DIRECTION.LEFT && hitLeft.collider == null){
			return true;
		}
		if (dir == DIRECTION.RIGHT && hitRight.collider == null){
			return true;
		} 
		return false;
	}

}

This fixed the problem. Just mae sure to disable the Collider so the Raycast will work.