<title>ent_nav_blocker</title> # ent_nav_blocker Has the ability to dynamically block the navigation mesh. When active, AI will see this entity as an obstacle and will now try to walk through it. `This entity requires a mesh to function` ⤶ ### Keyvalues⤶ ⤶ In code, it is defined in the `NavBlockerEntity.cs` file under `addons\base\code\Entity\Hammer\Triggers`.⤶ ⤶ ## Keyvalues⤶ **Name (`targetname`)** >* The name that other entities refer to this entity by. **Tags (`tags`)** >* A list of general purpose tags for this entity, for interactions with other entities such as triggers. **Enabled (`enabled`)** >* Whether this entity is enabled or not. **Shadow Casting (`enable_shadows`)** >* Whether this entity should cast shadows or not.