# window.um

```
 variables:
 w and h: the dimensions of the window
 fpsLimit: the fpsLimit
```

## fn setup*
`fn setup*(title: str = "tophat game", width: int = 400, height: int32 = 400) {`

Sets up the engine and opens a window.


## fn cycle*
`fn cycle*(cam: rect.Rect): bool {`

Cycle needs to be called every cycle. Pass the currently used camera, which
i used to calculate tophat's scaling. It returns true, if the window is
still running.


## fn beginScissorRect*
`fn beginScissorRect*(r: rect.Rect) {`

Disable rendering outside of rect `r`


## fn endScissor*
`fn endScissor*() {`

Stops cropping