What it does
input.mousePosition is a value to read rather than a call: it is written without parentheses.
The API says: {x, y}
Signature
input.mousePositionArguments
It takes none.
Example · generated
function update(dt) { const mousePosition = input.mousePosition;}input.mousePosition is called with values of the shape its signature asks for. The code sits in update(dt), which the engine calls every frame: dt is the time since the last one, in seconds.