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Jan 30, 2023 · Summary. Unity’s Tilemap system makes it easy to create and iterate level design cycles within Unity. It allows artists and designers to rapidly prototype when building 2D game worlds. In this tutorial, you'll create a Tilemap and explore the Tilemap system including Tilemap settings, and you'll use the Tile Palette to edit your Tilemap.
- Tilemap Spritesheet
- Creating Tilemaps
- Auto Tilling
- Fixing Gaps Between Tiles
- Collisions
- Custom Sorting Axis
- Gameobject Brush
- Transparent Tiles
- Tile Animation
- Scripting
2D Top-Down games are an excellent starting point, so how about we use Tilemaps to design one? We’ll use a ground tile Spritesheet to create the ground. Once we extract the tiles from the Spritesheet, we can create a Tilemap.
Ensure the 2D Tilemap Editor and the 2D Tilemap Extras packages are installed to use Tilemaps. Tilemap is a GameObject on which we place tiles. We can choose different layouts; in our case, the Rectangular Tilemap will match our Sprites. We now have a Grid object with an attached Grid component, and under it, a Tilemap object is attached to Tilemap...
Tile Rules
Ensure the 2D Tilemap Extras package is installed to use Tile Rules. To use Auto Tilling, we need to create in our Project a new Tile Rule asset. To it, we add all the different Sprites we want to be defined in the rule. I recommend setting its Default Sprite so it will have a visual for the Tile Rule asset when we drag it into the Pallete. To set the rules, we click inside the grid sections, one click for green arrows – meaning the tile is continuous, two clicks for red X – marking the tile'...
Random Sprites
We can take it even further by changing some of the outputs to Random and giving the tiles option to choose between different Sprites randomly, making our Tilemap look less boring.
A common problem when using Tilemaps is the gaps shown between the tiles. To fix it, we create a Sprite Atlas to drag the Spritesheet into.
Currently, the player can move freely in the scene, and it is time to change that. We will create the tiles we want to have a Collider on a different Tilemap. Be sure to create the new Tilemap under the Grid object; there is no need to create two Grid objects. Before you paint the obstacle tiles, be sure to paint them on the right Tilemap. We can e...
While now we can stand in front of the fence, we would like the option to stand behind it to give the illusion of depth. For that, we will use sorting by Y-axis instead of Z. This way, the higher the assets on the screen, the farthest behind it will render. Depending on your Render Pipeline, open its rendering preferences. Set the Transparency Sort...
To paint the Sprite to align with the grid, we will first create a Prefab from it with a nice Collider and change the tile Pallete's brush to a GameObject Brush. We open up this section and add the Prefab. On the way, we can add a few tree Prefabs to this scene. Once we are done, we will need to remember to change the brush back to Default if we wa...
To make our level prettier, we can add flora tiles. Adding transparent flora tile to the Background Tilemap replaces the ground tile. If we wanted to add them to the Objects Tilemap, we will first need to disable their colliders, by going to each tile asset at the Project and setting its Collider Type to none. With this, the Tilemap Collider 2D com...
Let's juice the level up by adding Animated Tiles. We create a new Animated Tile asset at the Project window, and we can drag these Frame By Frame animation Sprites into it. We need to add the new asset to the Tile Palette to paint it in the scene. If you find the animation too slow, we can return to the Animated Tile asset and change the Minimum S...
Our final addition will be adding some bushes to stomp. We can add the tile bush to a separate Tilemap and give it a tag while going to our script and using the CompareTagmethod. But, just like with the big obstacles, I recommend using the prefab brush instead. It's easy to use and gives us more options with less work. Let's also cover some good-to...
To get a comprehensive introduction to how the Unity Tilemap system works, download the e-book 2D game art, animation, and lighting for artists. Tilemaps in Happy Harvest. The tiles in Happy Harvest were created in sections, with priority given to tilemaps that are used extensively in the game, like the main path or grass patches.
The Tilemap GameObject is where the Tiles are painted on. Create additional Tilemaps by selecting the Grid GameObject or the Tilemap GameObject, and then go to the menu: GameObject The fundamental object in Unity scenes, which can represent characters, props, scenery, cameras, waypoints, and more. A GameObject’s functionality is defined by ...
You’ll need a Prefab of the GameObject you want to spawn in the tilemap; GameObject tile setup. In Tile palette, choose the brush tool; Change Default brush to GameObject brush; Drag the GameObject Prefab to Element 0; Click Edit to enter the edit mode; Click on the tile you added the sprite to; Click Edit to exit Edit mode.
By default, the Tilemap package isn’t included in the Unity Editor, so you must download the 2D Tilemap Editor package from the Package Manager. When you create a Tilemap, the Grid component is automatically parented to the Tilemap and acts as a guide when you lay out Tiles onto the Tilemap. To create, change, or pick the Tiles for painting ...
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Oct 3, 2023 · Creating a Tilemap: To create a Tilemap, go to GameObject -> 2D Object -> Tilemap -> Rectangular. This action will generate a Grid GameObject and a Tilemap GameObject. The grid helps to align the ...
