# StartWorldEvent > Fired when a world event is starting. Can be cancelled to prevent activation. `gg.lode.observerapi.api.event` --- ## Signature ```java public class StartWorldEvent extends BaseEvent implements Cancellable ``` --- ## Methods ### getWorldEvent ```java public WorldEvent getWorldEvent() ``` **Returns:** [[WorldEvent]] - the world event being started --- ### isCancelled ```java public boolean isCancelled() ``` **Returns:** `boolean` - `true` if the event is cancelled --- ### setCancelled ```java public void setCancelled(boolean cancelled) ``` | Parameter | Type | Description | |-----------|------|-------------| | `cancelled` | `boolean` | Whether to cancel the event | --- ## Related Pages - [[WorldEvent]] - [[EndWorldEvent]] - [[IWorldEventManager]]