Building the 2048 game in Unity via C# and Visual Studio

2048 is a very cool game that can make you spend hours playing it. Goal is to ‘merge’ tiles of identical values together, in order to have their value duplicated. When player swipes in her desired direction, items are moved towards there and a new item is created. If the player reaches the number 2048, then she has won the game. In this blog post, we’ll discuss how we can create it in Unity via C# and Visual Studio 2015.

As always, you can find the source code here on GitHub and test the game here via WebGL.

image

Screenshot showing the game in the Unity editor. On the left we can see the score and a restart button, on the middle the main game screen and on the right a visualization of the game’s 2 dimensional array contents, for debugging purposes.

Input methods

We have implemented two methods to get user input in the game. First one is via keyboard’s arrow keys, the other is via swipe in a touch screen (or mouse). We have implemented an enumeration to get user’s input and an interface which must be implemented by each input method we want to use. Moreover, if we need to add another input method in the future, e.g. input from an XBOX controller, we could simply implement the IInputDetector interface.


public enum InputDirection
{
    Left, Right, Top, Bottom
}

public interface IInputDetector
{
    InputDirection? DetectInputDirection();
}

Read More »