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<!DOCTYPE html><html lang="en-US"><head><title>Unity Cookbook. Tilemaps</title><meta property="og:title" content="Unity Cookbook. Tilemaps"><meta charset="UTF-8"><meta name="viewport" content="width=device-width,height=device-height,initial-scale=1.0"><meta name="apple-mobile-web-app-capable" content="yes"><meta http-equiv="X-UA-Compatible" content="ie=edge"><meta property="og:type" content="website"><meta name="twitter:card" content="summary"><style>@media screen{body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button{-webkit-tap-highlight-color:transparent;-webkit-appearance:none;appearance:none;background-color:transparent;border:0;color:inherit;cursor:pointer;font-size:inherit;opacity:.8;outline:none;padding:0;transition:opacity .2s linear}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:disabled,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:disabled,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:disabled,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:disabled{cursor:not-allowed;opacity:.15!important}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:hover,body[data-bespoke-view=next] .bespoke-marp-parent>.bespoke-marp-osc>button:hover,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-info-container button:hover,body[data-bespoke-view=presenter] .bespoke-marp-presenter-container .bespoke-marp-presenter-note-container button:hover{opacity:1}body[data-bespoke-view=""] .bespoke-marp-parent>.bespoke-marp-osc>button:hover:active,body[data-bespoke-view=next] 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/*!
* Marp default theme.
*
* @theme default
* @author Yuki Hattori
*
* @auto-scaling true
* @size 16:9 1280px 720px
* @size 4:3 960px 720px
*/div#\:\$p>svg>foreignObject>section,div#\:\$p>svg>foreignObject>section 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.pl-ii{background-color:var(--color-prettylights-syntax-invalid-illegal-bg);color:var(--color-prettylights-syntax-invalid-illegal-text)}div#\:\$p>svg>foreignObject>section .pl-c2{background-color:var(--color-prettylights-syntax-carriage-return-bg);color:var(--color-prettylights-syntax-carriage-return-text)}div#\:\$p>svg>foreignObject>section .pl-sr .pl-cce{color:var(--color-prettylights-syntax-string-regexp);font-weight:700}div#\:\$p>svg>foreignObject>section .pl-ml{color:var(--color-prettylights-syntax-markup-list)}div#\:\$p>svg>foreignObject>section .pl-mh,div#\:\$p>svg>foreignObject>section .pl-mh .pl-en,div#\:\$p>svg>foreignObject>section .pl-ms{color:var(--color-prettylights-syntax-markup-heading);font-weight:700}div#\:\$p>svg>foreignObject>section .pl-mi{color:var(--color-prettylights-syntax-markup-italic);font-style:italic}div#\:\$p>svg>foreignObject>section .pl-mb{color:var(--color-prettylights-syntax-markup-bold);font-weight:700}div#\:\$p>svg>foreignObject>section .pl-md{background-color:var(--color-prettylights-syntax-markup-deleted-bg);color:var(--color-prettylights-syntax-markup-deleted-text)}div#\:\$p>svg>foreignObject>section .pl-mi1{background-color:var(--color-prettylights-syntax-markup-inserted-bg);color:var(--color-prettylights-syntax-markup-inserted-text)}div#\:\$p>svg>foreignObject>section .pl-mc{background-color:var(--color-prettylights-syntax-markup-changed-bg);color:var(--color-prettylights-syntax-markup-changed-text)}div#\:\$p>svg>foreignObject>section .pl-mi2{background-color:var(--color-prettylights-syntax-markup-ignored-bg);color:var(--color-prettylights-syntax-markup-ignored-text)}div#\:\$p>svg>foreignObject>section .pl-mdr{color:var(--color-prettylights-syntax-meta-diff-range);font-weight:700}div#\:\$p>svg>foreignObject>section .pl-ba{color:var(--color-prettylights-syntax-brackethighlighter-angle)}div#\:\$p>svg>foreignObject>section .pl-sg{color:var(--color-prettylights-syntax-sublimelinter-gutter-mark)}div#\:\$p>svg>foreignObject>section .pl-corl{color:var(--color-prettylights-syntax-constant-other-reference-link);text-decoration:underline}div#\:\$p>svg>foreignObject>section g-emoji{display:inline-block;font-family:Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;font-size:1em;font-style:normal!important;font-weight:var(--base-text-weight-normal,400);line-height:1;min-width:1ch;vertical-align:-.075em}div#\:\$p>svg>foreignObject>section g-emoji img{height:1em;width:1em}div#\:\$p>svg>foreignObject>section .task-list-item{list-style-type:none}div#\:\$p>svg>foreignObject>section .task-list-item label{font-weight:var(--base-text-weight-normal,400)}div#\:\$p>svg>foreignObject>section .task-list-item.enabled label{cursor:pointer}div#\:\$p>svg>foreignObject>section .task-list-item+.task-list-item{margin-top:4px}div#\:\$p>svg>foreignObject>section .task-list-item .handle{display:none}div#\:\$p>svg>foreignObject>section 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class="bespoke-marp-osc"><button data-bespoke-marp-osc="prev" tabindex="-1" title="Previous slide">Previous slide</button><span data-bespoke-marp-osc="page"></span><button data-bespoke-marp-osc="next" tabindex="-1" title="Next slide">Next slide</button><button data-bespoke-marp-osc="fullscreen" tabindex="-1" title="Toggle fullscreen (f)">Toggle fullscreen</button><button data-bespoke-marp-osc="presenter" tabindex="-1" title="Open presenter view (p)">Open presenter view</button></div><div id=":$p"><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="1" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="1" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h1 id="tilemaps-and-tile-based-backgrounds">Tilemaps and tile-based backgrounds</h1>
</section>
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<h2 id="what-is-a-tilemap">What is a tilemap?</h2>
<ul>
<li data-marpit-fragment="1">Tilemaps are images that are split into constant-size tiles
<ul>
<li data-marpit-fragment="2">They're used often for creating loads of background art in 2D games</li>
</ul>
</li>
<li data-marpit-fragment="3">A good introduction to Unity tilemaps:
<ul>
<li data-marpit-fragment="4"><a href="https://www.youtube.com/watch?v=ryISV_nH8qw">Brackeys video: Tilemaps</a></li>
</ul>
</li>
<li data-marpit-fragment="5">See this <a href="https://cupnooble.itch.io/sprout-lands-asset-pack">free asset pack</a> for example!</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-marpit-fragments="10" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="3" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:34%;" data-marpit-pagination-total="16" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("imgs/tileset-sprite-settings.png");background-size:auto 90%;"></figure></div></section></foreignObject><foreignObject width="66%" height="720"><section id="3" data-marpit-fragments="10" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="3" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:34%;" data-marpit-pagination-total="16" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h2 id="tilemap-asset">Tilemap asset</h2>
<ul>
<li data-marpit-fragment="1"><a href="https://docs.unity3d.com/Manual/Tilemap-workflow.html">Manual: Tilemap workflow</a></li>
<li data-marpit-fragment="2">To create a new tilemap, add an image into your project that contains a tilemap</li>
<li data-marpit-fragment="3">Change its settings in inspector (see image)
<ul>
<li data-marpit-fragment="4">Set <em>Sprite mode</em> to <em>Multiple</em></li>
<li data-marpit-fragment="5">Set <em>Pixels per unit</em> to grid size (e.g., 32)</li>
</ul>
</li>
<li data-marpit-fragment="6">Open <em>Sprite Editor</em> and click <em>Slice</em>
<ul>
<li data-marpit-fragment="7">Set <em>Type</em> to <em>Grid by cell size</em>, click <em>Slice</em></li>
<li data-marpit-fragment="8">Close the Sprite editor and save.</li>
</ul>
</li>
<li data-marpit-fragment="9">Now the sprite asset should have the individual tiles visible like this:
<ul>
<li data-marpit-fragment="10"><img src="imgs/tileset-sprite-asset.png" alt="" style="height:100px;" /></li>
</ul>
</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-marpit-fragments="10" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="3" style="" data-marpit-pagination-total="16" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="4" data-marpit-fragments="12" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="4" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h2 id="tilemap--grid-gameobjects">Tilemap & Grid GameObjects</h2>
<ul>
<li data-marpit-fragment="1">Create a new <a href="https://docs.unity3d.com/Manual/class-Tilemap.html">Tilemap</a> GameObject: <em>2D Object > Tilemap > Rectangular</em>
<ul>
<li data-marpit-fragment="2">We will draw the levels to the TileMap GameObject</li>
</ul>
</li>
<li data-marpit-fragment="3">A <a href="https://docs.unity3d.com/Manual/class-Grid.html">Grid</a> GameObject gets creates as the parent object of the tilemap
<ul>
<li data-marpit-fragment="4">It defines the level-wide grid</li>
<li data-marpit-fragment="5">We usually only need one Grid GameObject per scene</li>
</ul>
</li>
<li data-marpit-fragment="6">For multiple layers, you can create multiple tilemaps under the same grid
<ul>
<li data-marpit-fragment="7">It's a good idea to have at least two layers:</li>
<li data-marpit-fragment="8">"Terrain tiles" for traversable background</li>
<li data-marpit-fragment="9">"Wall tiles" for collidable walls</li>
</ul>
</li>
<li data-marpit-fragment="10">Tilemap GameObject has two components
<ul>
<li data-marpit-fragment="11">Tilemap Component, <a href="https://docs.unity3d.com/Manual/class-Tilemap.html">Manual: Tilemap</a></li>
<li data-marpit-fragment="12">Tilemap Renderer Component, <a href="https://docs.unity3d.com/Manual/class-TilemapRenderer.html">Manual: Tilemap renderer</a></li>
</ul>
</li>
</ul>
</section>
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<h2 id="creating-a-tile-palette">Creating a Tile Palette</h2>
<ul>
<li data-marpit-fragment="1">First off, create a new folder for the tile assets (e.g. <em>Assets/Tiles</em>) we'll create shortly</li>
<li data-marpit-fragment="2">We need a new window, <em><strong>Tile Palette</strong></em>, to pick the tiles we draw on the tilemap
<ul>
<li data-marpit-fragment="3"><em>Window > 2D > Tile Palette</em></li>
</ul>
</li>
<li data-marpit-fragment="4">By default, it does not contain any tiles (a.k.a., a palette) to choose from.
<ul>
<li data-marpit-fragment="5">Click <em>Create new palette</em></li>
</ul>
</li>
<li data-marpit-fragment="6">Choose a name that describes the tile palette (Like GroundTilePalette), and click <em>Create</em>. Save the palette asset to the tile assets folder we created
<ul>
<li data-marpit-fragment="7">
<p>The tile palette is a prefab asset that we don't need to touch</p>
<p><img src="imgs/tilepalette-prefab.png" alt="" /></p>
</li>
</ul>
</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-marpit-fragments="5" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="6" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:40%;" data-marpit-pagination-total="16" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("imgs/tile-palette.png");background-size:auto 90%;"></figure></div></section></foreignObject><foreignObject width="60%" height="720"><section id="6" data-marpit-fragments="5" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="6" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:40%;" data-marpit-pagination-total="16" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h3 id="drawing-with-the-tile-palette">Drawing with the tile palette</h3>
<ul>
<li data-marpit-fragment="1">Now that we have a palette, we can drag the tilemap sprite asset from the Project window to the Tile Palette window.</li>
<li data-marpit-fragment="2">This creates <em><strong>tile assets</strong></em> for all tiles: <a href="https://docs.unity3d.com/Manual/Tilemap-TileAsset.html">Manual: Tile Assets</a>
<ul>
<li data-marpit-fragment="3">Choose the folder we created earlier <em>Assets/Tiles</em> to save the assets into</li>
</ul>
</li>
<li data-marpit-fragment="4">Then, paint away to create your tile-based level! The brush tool should be active by default.</li>
<li data-marpit-fragment="5"><em><strong>Note:</strong></em> We can also drag regular single sprites into the tile palette!</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-marpit-fragments="5" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="6" style="" data-marpit-pagination-total="16" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="7" data-marpit-fragments="10" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="7" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h3 id="tile-palette-pro-tips">Tile palette pro tips</h3>
<ul>
<li data-marpit-fragment="1">Use the <em>Pick or marquee select</em> tool (Eyedropper) to quickly copy-paste areas in the tilemap.</li>
<li data-marpit-fragment="2">Hold <em><strong>CTRL</strong></em> when Eraser is selected to make the eraser bigger.</li>
<li data-marpit-fragment="3">There are also hidden flip & rotate tools!
<ul>
<li data-marpit-fragment="4">Go to <em>Preferences > 2D > Tile Palette</em></li>
<li data-marpit-fragment="5">Select a tool in the list and press the + Button.
<ul>
<li data-marpit-fragment="6"><em>FlipXTool, FlipYTool, RotateClockwiseTool, RotateCounterClockwiseTool</em></li>
</ul>
</li>
<li data-marpit-fragment="7">The tools are a bit counterintuitive, but they're easier to use with hotkeys
<ul>
<li data-marpit-fragment="8">On Finnish keyboard:
<ul>
<li data-marpit-fragment="9">Rotate: <em><strong>`</strong></em>, <em><strong>Å</strong></em></li>
<li data-marpit-fragment="10">Flip: <em><strong>SHIFT +`</strong></em>, <em><strong>SHIFT + Å</strong></em>,)</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
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<h2 id="collision">Collision</h2>
<ul>
<li data-marpit-fragment="1">To add collision to your tilemap layer, just add the <a href="(https://docs.unity3d.com/Manual/class-TilemapCollider2D.html)">Tilemap Collider 2D component</a></li>
<li data-marpit-fragment="2">Shape of the collider is decided automatically by Unity for every tile
<ul>
<li data-marpit-fragment="3">Enter play mode once to see how the collider is shaped</li>
<li data-marpit-fragment="4">You can change tile collider for every tile:
<ul>
<li data-marpit-fragment="5">Open the Sprite settings and go to <em>Sprite editor > Custom Physics Shape</em></li>
<li data-marpit-fragment="6">Click on a tile that had bad collision shape and click <em>Generate</em></li>
</ul>
</li>
</ul>
</li>
<li data-marpit-fragment="7"><em><strong>Note:</strong></em> If you want to only have square grid collisions, you can also just use a separate invisible layer for collisions (disable its Tilemap Renderer component)</li>
</ul>
</section>
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<h2 id="2d-tilemap-extras">2D Tilemap Extras</h2>
<ul>
<li data-marpit-fragment="1"><a href="https://docs.unity3d.com/Packages/[email protected]/manual/index.html">Packages: 2D Tilemap Extras</a></li>
<li data-marpit-fragment="2"><em><strong>2D Tilemap Extras</strong></em> Package contains many goodies
<ul>
<li data-marpit-fragment="3">Autotiling</li>
<li data-marpit-fragment="4">Animated tiles</li>
<li data-marpit-fragment="5">GameObject tiles...</li>
</ul>
</li>
<li data-marpit-fragment="6">Comes in 2D projects by default nowadays</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-marpit-fragments="7" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="10" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:40%;" data-marpit-pagination-total="16" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("imgs/autotiling.png");background-size:auto 90%;"></figure></div></section></foreignObject><foreignObject width="60%" height="720"><section id="10" data-marpit-fragments="7" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="10" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:40%;" data-marpit-pagination-total="16" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h2 id="2d-extras-autotiling">2D extras: Autotiling</h2>
<ul>
<li data-marpit-fragment="1"><em><strong>Autotiling</strong></em> is a technique for creating 2d levels faster with <em><strong>Rule tiles</strong></em>
<ul>
<li data-marpit-fragment="2">E.g., instead of inserting every corner tile by hand, autotiling inserts corner tiles where they should appear</li>
</ul>
</li>
<li data-marpit-fragment="3"><a href="https://www.youtube.com/watch?v=nfjAznD_MaU">How To Use Auto Tiling in Unity 2020</a> (might be outdated in some aspects)</li>
<li data-marpit-fragment="4">Open Project Window and right click, then choose <em>Create > 2D > Tiles > Rule Tile</em>
<ul>
<li data-marpit-fragment="5">Drag a sprite to Inspector</li>
<li data-marpit-fragment="6">Add <em>Tiling Rules</em> (see next slide)</li>
<li data-marpit-fragment="7">Then, Drag the Rule Tile to an empty slot in the tile palette. You're done!</li>
</ul>
</li>
</ul>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-marpit-fragments="7" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="10" style="" data-marpit-pagination-total="16" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="11" data-marpit-fragments="7" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="11" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h2 id="2d-extras-animated-tile">2D extras: Animated tile</h2>
<ul>
<li data-marpit-fragment="1">Use the <em><strong>Animated Tile</strong></em> to create tiles with animations in them.
<ul>
<li data-marpit-fragment="2">Great for waterfalls, animated torches etc. in the background</li>
<li data-marpit-fragment="3"><em>Create > 2D > Tiles > Animated Tile</em></li>
<li data-marpit-fragment="4">Drag sprites to the tile in the Inspector</li>
<li data-marpit-fragment="5">Set animation speed (if you want the speed to always be the same, set the minimum and maximum speed to a same value)</li>
<li data-marpit-fragment="6">Drag the newly created animated tile from Project window to Tile Palette
<ul>
<li data-marpit-fragment="7">Now you can draw with the animated tile!</li>
</ul>
</li>
</ul>
</li>
</ul>
</section>
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<h2 id="2d-extras-gameobject-tile">2D extras: GameObject tile</h2>
<ul>
<li data-marpit-fragment="1">GameObjects can be "drawn" (created) as tiles in the tilemap with the GameObject brush</li>
<li data-marpit-fragment="2">It's a different brush than the default brush we've been using and has to be set up first</li>
<li data-marpit-fragment="3">Remember to go back to default brush when you want to draw background tiles again!</li>
<li data-marpit-fragment="4">You'll need a Prefab of the GameObject you want to spawn in the tilemap</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section data-marpit-fragments="1" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="13" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:26%;" data-marpit-pagination-total="16" data-marpit-advanced-background="background" data-marpit-advanced-background-split="right"><div data-marpit-advanced-background-container="true" data-marpit-advanced-background-direction="horizontal"><figure style="background-image:url("imgs/tile-palette-gameobject-brush.png");background-size:auto 90%;"></figure></div></section></foreignObject><foreignObject width="74%" height="720"><section id="13" data-marpit-fragments="1" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="13" style="--paginate:true;--class:invert;--heading-divider:3;--marpit-advanced-background-split:26%;" data-marpit-pagination-total="16" data-marpit-advanced-background="content" data-marpit-advanced-background-split="right">
<h3 id="gameobject-tile-setup">GameObject tile setup</h3>
<ol>
<li>In Tile palette, choose the brush tool</li>
<li>Change <em>Default brush</em> to <em>GameObject brush</em></li>
<li>Drag the GameObject Prefab to <em>Element 0</em></li>
<li>Click <em>Edit</em> to enter the edit mode</li>
<li>Click on the tile you added the sprite to</li>
<li>Click <em>Edit</em> to exit <em>Edit</em> mode.
<ul>
<li data-marpit-fragment="1">Now, when you click on the chosen tile, it should display the GameObject in <em>Element 0</em>.</li>
</ul>
</li>
<li>Use the GameObject brush to add new GameObjects - they'll show up in Hierarchy right away.</li>
</ol>
</section>
</foreignObject><foreignObject width="1280" height="720" data-marpit-advanced-background="pseudo"><section data-marpit-fragments="1" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="13" style="" data-marpit-pagination-total="16" data-marpit-advanced-background="pseudo" data-marpit-advanced-background-split="right"></section></foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="14" data-paginate="true" data-class="invert" data-background-color="#29366f" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="14" style="--paginate:true;--class:invert;--background-color:#29366f;--heading-divider:3;background-color:#29366f;background-image:none;" data-marpit-pagination-total="16">
<h2 id="exercise-1-a-tiled-level">Exercise 1. A tiled level</h2>
<p>Import a tilemap from an existing sprite sheet. Create a tiny level out of your tile assets!</p>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="15" data-marpit-fragments="5" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="15" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h2 id="gameobject-on-a-grid">GameObject on a grid</h2>
<ul>
<li data-marpit-fragment="1"><em><strong>Note:</strong></em> If snapping to the grid is your concern, you're better off using the GameObject tile</li>
<li data-marpit-fragment="2">Without the GameObject tile, you can do it like this:</li>
<li data-marpit-fragment="3">To snap a player character to a grid, you have two options:<br />
a) Move the grid to position (0.5, 0.5)<br />
b) Make the player's sprite renderer a child GameObject, and move it to coordinates (0.5,-0.5,0)
<ul>
<li data-marpit-fragment="4">Also, add the same offset to player's RigidBody</li>
</ul>
</li>
<li data-marpit-fragment="5">Then, click on the <em>Snap to grid</em> button (left side of <em>Play</em> button)</li>
</ul>
</section>
</foreignObject></svg><svg data-marpit-svg="" viewBox="0 0 1280 720"><foreignObject width="1280" height="720"><section id="16" data-marpit-fragments="6" data-paginate="true" data-class="invert" data-heading-divider="3" lang="en-US" class="invert" data-marpit-pagination="16" style="--paginate:true;--class:invert;--heading-divider:3;" data-marpit-pagination-total="16">
<h2 id="fixing-ugly-seams-in-tilemap">Fixing ugly seams in tilemap</h2>
<ul>
<li data-marpit-fragment="1">Many things can cause this.</li>
<li data-marpit-fragment="2">In Game Mode, create a new resolution and set it to a <em>Fixed resolution</em> that is a multiple of your tile size
<ul>
<li data-marpit-fragment="3">For example, for a tile size of 32, a 480x320 is a good choice.</li>
</ul>
</li>
<li data-marpit-fragment="4"><em>Edit > Project Settings > Quality > Anti-aliasing: Disabled</em>
<ul>
<li data-marpit-fragment="5">See also <a href="./2d-animation#extras-pixel-art-in-unity">2D animation: Pixel art in unity</a></li>
</ul>
</li>
<li data-marpit-fragment="6">You might even have to create a custom material for all pixelart sprites that has <em>Pixel snap</em> enabled</li>
</ul>
</section>
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