hytopia/docs/server.collisiongroupsbuilder.buildrawcollisiongroups.md

The HYTOPIA SDK makes it easy for developers to create massively multiplayer games using JavaScript or TypeScript.

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[Home](./index.md) &gt; [server](./server.md) &gt; [CollisionGroupsBuilder](./server.collisiongroupsbuilder.md) &gt; [buildRawCollisionGroups](./server.collisiongroupsbuilder.buildrawcollisiongroups.md)

## CollisionGroupsBuilder.buildRawCollisionGroups() method

Builds a raw set of collision groups from a set of collision groups.

**Signature:**

```typescript
static buildRawCollisionGroups(collisionGroups: CollisionGroups): RawCollisionGroups;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

collisionGroups


</td><td>

[CollisionGroups](./server.collisiongroups.md)


</td><td>

The set of collision groups to build.


</td></tr>
</tbody></table>
**Returns:**

[RawCollisionGroups](./server.rawcollisiongroups.md)

A raw set of collision groups represented as a 32-bit number.