Reading time: 4 minutes
In today’s post, I’m going to show you how we can create a surface using Unity.
I’ve used this image that you can download here (it is licensed under CC0, created/distributed by Kenney (www.kenney.nl)):
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We’re going to copy this .png image into the Sprites folder (Assets > Sprites) in our Unity project. If we don’t have the folder, we create it.
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To split the tile, we can use the Unity editor. To do this, click on the tiles_packed image and in the options that appear on the right, click on Sprite Editor.
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Now, inside the editor, click on the second arrow pointing downwards next to Sprite Editor and select:
- Type: Grid by Cell Count
- Column & Row: C: 19 R: 10
And click on Slice.
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Now click on Apply and exit the editor.
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We can verify that it has been split in the Sprites viewer (Assets > Sprites) where we had the original image.
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Now let’s place the surface in the scene. To do this, go to Hierarchy and right-click inside to create a new element 2D Object > Tilemap > Rectangular.
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Now, to draw the floor on the surface, open the tab in the top options of Unity Window > 2D > Tile Palette.
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The Tile Palette editor will open.
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Click on Create New Palette, give it a name, and leave the rest of the fields as default.
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Click on Create and choose the path to save it. In this case, let’s create or choose a folder called tiles (Assets > Tiles).
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Now we can see our element inside this folder Assets > Tiles.
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Now open the Assets > Sprites folder and drag tiles_packed into the right editor, Tile Palette.
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It will ask again where we want to save it, so we choose the Assets > Tiles folder again.
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Once saved, we have created the palette generated with our floor image.
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Now go back to Hierarchy and select the element we created earlier (inside Grid). I renamed it as Suelo (Floor).
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Once selected, we can paint it using the created palette.
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If the elements appear too small like the ones in my image, we can make them larger. To do this, go back to Assets > Sprites and click on tiles_packed.
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Now choose Pixels Per Unit: 16.
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This way, the elements will fit the screen size.
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