GameController

using UnityEngine;
using System.Collections;

public class GameController : MonoBehaviour {


    public Sprite jumpingJack1;
    public Sprite jumpingJack2;
    public int spriteNum;
    Sprite playerSprite;
    GameObject player;


    // Use this for initialization
    void Start () {
        player = GameObject.FindGameObjectWithTag("player");
        playerSprite = player.GetComponent<SpriteRenderer>().sprite;
    }

    // Update is called once per frame
    void Update () {

        if (Input.GetMouseButtonDown(0)) {
            Debug.Log("pressed");
            spriteNum += 1;
        }
        if (spriteNum % 2 == 0){
           playerSprite = jumpingJack1;
        }
        else {
           playerSprite = jumpingJack2;
        }

    }
}