Function
onButtonDown
(btn: TButton | TButton[], action: (btn: TButton) => void): KEventControllerRegister an event that runs when user press a defined button (like "jump") on any input (keyboard, gamepad).
param btn- The button(s) to listen for.
param action- The function to run when the event is triggered.
returns The event controller.
since v3001.0
group Input
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