Flipping a sprite horizontally

Perhaps the simplest 2D animation is a simple flip, from facing left to facing right, or facing up to facing down, and so on. In this recipe we'll add a cute bug sprite to the scene, and write a short script to flip its horizontal direction when the Left and Right arrow keys are pressed.

Getting ready

For this recipe, we have prepared the image you need in a folder named Sprites in folder 1362_03_01.

How to do it...

To flip an object horizontally with arrow key presses, follow these steps:

1. Create a new Unity 2D project.
2. Import the provided image EnemyBug.png.
3. Drag an instance of the red Enemy Bug image from the Project | Sprites folder into the scene. Position this GameObject at (0, 0, 0) and scale to (2, 2, 2).
4. Add an instance of C# script class BugFlip as a component to your Enemy Bug GameObject:

   using UnityEngine;
   using System.Collections;
   
   public class BugFlip : MonoBehaviour {
     private bool facingRight = true;
   
     void Update() {
       if (Input.GetKeyDown...