The following is pseudo-code to make it clear what the parameter and return value types are.
Some of these functions - mainly the input ones, like keyHit() take key codes or mouse button codes e.g. dl.KEY_LEFT_ARROW etc as a parameter. You can find those by clicking the Key/Mouse/GamePad Codes link below.
📣 Tip! You can click a function name to see an example and learn more about it!