Allow player to move based on three buttons - left,right,jump

PlayerJoystick.cs

using UnityEngine;
using System.Collections;

public class PlayerJoystick : MonoBehaviour
{

	public float speed = 0.1f, maxVelocity = 0.05f;
	private Rigidbody2D myBody;
	private Animator anim;
	private bool moveLeft, moveRight;
	private bool flippedToLeft;

	void Awake ()
	{
		myBody = GetComponent<Rigidbody2D> ();
		anim = GetComponent<Animator> ();
	}

	void FixedUpdate ()
	{
		if (moveLeft) {
			MoveLeft ();
		}

		if (moveRight) {
			MoveRight ();
		}
	}

	public void SetMoveLeft (bool moveLeft)
	{
		this.moveLeft = moveLeft;
		this.moveRight = !moveLeft;
		flippedToLeft = !moveLeft;
	}

	public void StopMoving ()
	{
		moveLeft = moveRight = false;
		anim.SetBool ("walk", false);
	}

	void MoveLeft ()
	{

		float forceX = 0f;
		float vel = Mathf.Abs (myBody.velocity.x);

		if (vel < maxVelocity)
			forceX = -speed;

		Vector3 temp = transform.localScale;

		if (!flippedToLeft) {
			temp.x = Mathf.Abs (transform.localScale.x) * -1f;
			flippedToLeft = true;
		}
		temp.y = Mathf.Abs (transform.localScale.y);
		transform.localScale = temp;
		anim.SetBool ("walk", true);


		transform.position += new Vector3 (forceX, 0, 0);
	}

	void MoveRight ()
	{

		float forceX = 0f;
		float vel = Mathf.Abs (myBody.velocity.x);
		
		if (vel < maxVelocity)
			forceX = speed;
		
		Vector3 temp = transform.localScale;
		temp.x = Mathf.Abs (transform.localScale.x) * 1f;
		temp.y = Mathf.Abs (transform.localScale.y);
		transform.localScale = temp;
		
		anim.SetBool ("walk", true);

		transform.position += new Vector3 (forceX, 0, 0);
	}


} // PlayerJoystick