[Home](./index.md) > [server](./server.md) > [BlockType](./server.blocktype.md) ## BlockType class Represents a block type definition. When to use: defining new block types (textures, colliders, liquid behavior). Do NOT use for: placing blocks directly; use `ChunkLattice.setBlock`. **Signature:** ```typescript export default class BlockType extends EventRouter implements protocol.Serializable ``` **Extends:** [EventRouter](./server.eventrouter.md) **Implements:** protocol.Serializable ## Remarks Block types are created as instances and registered with a `BlockTypeRegistry` for a specific world. Liquids are treated as sensors in physics.

Events

This class is an EventRouter, and instances of it emit events with payloads listed under `BlockTypeEventPayloads`. ## Example ```typescript const stoneBlockTypeId = 10; world.blockTypeRegistry.registerBlockType(new BlockType({ id: stoneBlockTypeId, textureUri: 'textures/stone.png', name: 'Stone', })); // Create a stone block at coordinate 0, 1, 0 world.chunkLattice.setBlock({ x: 0, y: 1, z: 0 }, stoneBlockTypeId); ``` \*\*Category:\*\* Blocks ## Constructors

Constructor	Modifiers	Description
[(constructor)(options)](./server.blocktype._constructor_.md)		Creates a new block type instance. Use for: defining a block type before registering it with a `BlockTypeRegistry`.

## Properties

Property	Modifiers	Type	Description
[colliderOptions](./server.blocktype.collideroptions.md)	`readonly`	[VoxelsColliderOptions](./server.voxelscollideroptions.md) \\| [TrimeshColliderOptions](./server.trimeshcollideroptions.md)	The collider options for the block type. \\Category:\\ Blocks
[id](./server.blocktype.id.md)	`readonly`	number	The unique identifier for the block type. \\Category:\\ Blocks
[isLiquid](./server.blocktype.isliquid.md)	`readonly`	boolean	Whether the block type is a liquid. \\Category:\\ Blocks
[isMeshable](./server.blocktype.ismeshable.md)	`readonly`	boolean	Whether the block type is meshable (voxel-based). \\Category:\\ Blocks
[isTrimesh](./server.blocktype.istrimesh.md)	`readonly`	boolean	Whether the block type uses a trimesh collider. \\Category:\\ Blocks
[isVoxel](./server.blocktype.isvoxel.md)	`readonly`	boolean	Whether the block type uses a voxel collider. \\Category:\\ Blocks
[lightLevel](./server.blocktype.lightlevel.md)	`readonly`	number	The light emission level (0-15). \\Category:\\ Blocks
[name](./server.blocktype.name.md)	`readonly`	string	The name of the block type. \\Category:\\ Blocks
[textureUri](./server.blocktype.textureuri.md)	`readonly`	string	The URI of the texture for the block type. \\Category:\\ Blocks

## Methods

Method	Modifiers	Description
[interact(player, raycastHit)](./server.blocktype.interact.md)		Triggers an interaction on the block type from a player. Use for: programmatic interactions that should mimic player clicks.