# Sandbox.PlayerController.Jump

```csharp
void Jump(Vector3 velocity)
```

Adds velocity in a special way. First we subtract any opposite velocity (ie, falling) then 
we add the velocity, but we clamp it to that direction. This means that if you jump when you're running
up a platform, you don't get extra jump power.

### Parameters

- `velocity` (`Vector3`)

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