# Sandbox.Mapping.EnvShake.On

```csharp
bool On { get; set; }
```

Is the shake running? Local to this machine - map-placed shakes start everywhere because the
scene ships with it set, but toggling it at runtime only affects this peer. Use
[Sandbox.Mapping.EnvShake.StartShake](/api/Sandbox.Mapping.EnvShake/StartShake)/[Sandbox.Mapping.EnvShake.StopShake](/api/Sandbox.Mapping.EnvShake/StopShake) to run one on every player. A non-looping
shake turns itself off when its cycle ends.

Declared in [Sandbox.Mapping.EnvShake](/api/Sandbox.Mapping.EnvShake).
Assembly: `Sandbox.Engine`.