[Home](./index.md) > [server](./server.md) > [DefaultPlayerEntityController](./server.defaultplayerentitycontroller.md) > [attach](./server.defaultplayerentitycontroller.attach.md) ## DefaultPlayerEntityController.attach() method Called when the controller is attached to an entity. **Signature:** ```typescript attach(entity: Entity): void; ``` ## Parameters

Parameter	Type	Description
entity	[Entity](./server.entity.md)	The entity to attach the controller to. \*\*Category:\*\* Controllers

**Returns:** void ## Remarks \*\*Wraps `applyImpulse`:\*\* The entity's `applyImpulse` method is wrapped to track external velocities separately from internal movement. External impulses decay over time when grounded. \*\*Locks rotations:\*\* Calls `entity.lockAllRotations()` to prevent physics from rotating the entity. Rotation is set explicitly by the controller based on camera orientation. \*\*Enables CCD:\*\* Enables continuous collision detection on the entity. \*\*Swimming detection:\*\* Registers a `BLOCK_COLLISION` listener to detect liquid blocks and manage swimming state, gravity scale, and animations.