How I can move up a character by a staircase?

Questions & Answers
1

Hi all, I am doing a 2d platform game and I am needing help with this topic. I have a character with rigibody2d and I wanted to move up my character by any staircase. I don’t know how I have to do this.

2

24210-stairs.png

I have three rigidbody2d, I did to walk, jump, run and all colliders for this level. But when I want to move up the stairs, I don’t know how to do. I have added a gameobject with a collider for each stairs, and these were added in other layer to identify the object.
Also, I have created new animations for my character to change the sprites. But it is not working correctly.

this is the code:

using UnityEngine;
using System.Collections;

    public class ErikAnimatorScript : MonoBehaviour {
    
    	private Animator anim;
    	private bool facingRight = true;
    	private bool grounded = true;
    	private float groundRadius = 0.2f;
    	private bool allowedUp = false;
    	private bool movingUp = false;
    	private bool allowedDown = false;
    	private bool movingDown = false;
    
    	public float maxSpeed = 10f;
    	public Transform groundCheck;
    	public LayerMask whatIsGround;
    	public float jumpForce = 700f;
    
    	// Use this for initialization
    	void Start () {
    		anim = GetComponent<Animator> ();
    	}
    	
    	// Update is called once per frame
    	void FixedUpdate () {
    		float moveX = Input.GetAxis ("Horizontal");
    		float moveY = Input.GetAxis("Vertical");
    
    		grounded = Physics2D.OverlapCircle (groundCheck.position, groundRadius, whatIsGround);
    
    		anim.SetBool ("Ground", grounded);
    		anim.SetFloat ("Speed", Mathf.Abs (moveX));
    		anim.SetFloat ("vSpeed", Mathf.Abs (moveY));
    
    		rigidbody2D.velocity = new Vector2 (moveX * maxSpeed, rigidbody2D.velocity.y);
    
    		if (moveX > 0 && !facingRight) {
    			Flip ();
    		} else if (moveX < 0 && facingRight) {
    			Flip ();
    		}
    
    		if (movingUp) {
    			rigidbody2D.velocity = new Vector2 (rigidbody2D.velocity.x, moveY * (maxSpeed / 2));
    		}
    	}
    
    	void Update() {
    		if (grounded && Input.GetKeyDown (KeyCode.Space)) {
    			anim.SetBool("Ground", false);
    
    			rigidbody2D.AddForce(new Vector2(0, jumpForce));
    		}
    
    		if (allowedUp && Input.GetKeyDown (KeyCode.W)) {
    			movingUp = true;
    
    			anim.SetBool("Up", false);
    			anim.SetBool("MovingUp", true);
    
    			rigidbody2D.gravityScale = 0f;
    		}
    	}
    
    	void Flip() {
    		facingRight = !facingRight;
    		Vector3 theScale = transform.localScale;
    		theScale.x *= -1;
    		transform.localScale = theScale;
    	}
    
    	void OnTriggerEnter2D(Collider2D other) {
    		if (other.tag == "Staircases") {
    			allowedUp = true;
    			anim.SetBool("Up", true);
    		}
    	}
    
    	void OnTriggerStay2D(Collider2D other) {
    
    	}
    	
    	void OnTriggerExit2D(Collider2D other) {
    		allowedUp = false;
    		movingUp = false;
    
    		anim.SetBool("Up", false);
    
    		rigidbody2D.gravityScale = 2.5f;
    	}
    }