The first step is to gather up and display graphics for our game. Now that you know what you’re building, it’s time to get to work! Note that the mock-up this time depicts exactly what the player sees (whereas the mock-up for a 3D scene depicts the space around the player and then where the camera goes for the player to see through). The player can turn over two cards at a time, attempting to find matching cards if the two cards chosen aren’t a match, they’ll flip back and then the player can guess again.įigure 1 shows a mock-up of the game we’re going to build.įigure 1 Mock-up of what the Memory game looks like Every card has a matching card located somewhere else, but the player can only see the reverse side of the card.
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For those unfamiliar with this game, a series of cards is dealt out facedown. You’re going to create the classic game of Memory. Two dimensions are those X- and Y-axes (this is what your teacher was talking about in math class!). Because they all face the same direction, you can point the camera straight at the sprites and players can only discern their movements along the X- and Y-axes (two dimensions).Ĭoordinate axes have three dimensions, which adds a Z-axis perpendicular to the X- and Y-axes. Technically, these sprites are objects in 3D space, but they’re flat surfaces oriented perpendicular to the Z-axis. You can import 2D images into Unity as sprites in much the same way you can import images as textures. The primary kind of art asset in 2D graphics is called a sprite.ĭEFINITION Sprites are 2D images displayed directly on the screen, as opposed to images displayed on the surface of 3D models ( textures). The 2D workflow in Unity is more or less the same as the workflow to develop a 3D game: import art assets, drag them into a scene, and write scripts to attach to the objects.
Eventually, the core editor and game engine were modified to incorporate 2D graphics, and this article teaches you about that newer functionality. In prior versions of Unity, game developers required a third-party framework (such as 2D Toolkit from Unikron Software) to emulate 2D graphics within Unity’s 3D scenes. Later versions of Unity (starting with version 4.3, released near the end of 2013) have added the ability to display 2D graphics, but even before then 2D games were already being developed in Unity (like mobile games that took advantage of Unity’s cross-platform nature). These mechanics cover the basics you need to know in order to develop 2D games in Unity.Īlthough Unity originated as a tool for 3D games, it’s used often for 2D games as well. You’re going to develop the classic children’s game Memory: you’ll display a grid of card backs, reveal the card front when it’s clicked, and score matches. In this article, you’ll learn by building a 2D game. You might be used to working with 3D graphics, but you can also work with 2D graphics in Unity. Take 35% off Unity in Action, Third Edition by entering fcchocking3 into the discount code box at checkout at. From Unity in Action, Third Edition by Joe Hocking
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