s-puig e788e3bc83 Implement gamepads as entities (#12770) ... # Objective - Significantly improve the ergonomics of gamepads and allow new features Gamepads are a bit unergonomic to work with, they use resources but unlike other inputs, they are not limited to a single gamepad, to get around this it uses an identifier (Gamepad) to interact with anything causing all sorts of issues. 1. There are too many: Gamepads, GamepadSettings, GamepadInfo, ButtonInput<T>, 2 Axis<T>. 2. ButtonInput/Axis generic methods become really inconvenient to use e.g. any_pressed() 3. GamepadButton/Axis structs are unnecessary boilerplate: ```rust for gamepad in gamepads.iter() { if button_inputs.just_pressed(GamepadButton::new(gamepad, GamepadButtonType::South)) { info!("{:?} just pressed South", gamepad); } else if button_inputs.just_released(GamepadButton::new(gamepad, GamepadButtonType::South)) { info!("{:?} just released South", gamepad); } } ``` 4. Projects often need to create resources to store the selected gamepad and have to manually check if their gamepad is still valid anyways. - Previously attempted by #3419 and #12674 ## Solution - Implement gamepads as entities. Using entities solves all the problems above and opens new possibilities. 1. Reduce boilerplate and allows iteration ```rust let is_pressed = gamepads_buttons.iter().any(|buttons| buttons.pressed(GamepadButtonType::South)) ``` 2. ButtonInput/Axis generic methods become ergonomic again ```rust gamepad_buttons.any_just_pressed([GamepadButtonType::Start, GamepadButtonType::Select]) ``` 3. Reduces the number of public components significantly (Gamepad, GamepadSettings, GamepadButtons, GamepadAxes) 4. Components are highly convenient. Gamepad optional features could now be expressed naturally (`Option<Rumble> or Option<Gyro>`), allows devs to attach their own components and filter them, so code like this becomes possible: ```rust fn move_player<const T: usize>( player: Query<&Transform, With<Player<T>>>, gamepads_buttons: Query<&GamepadButtons, With<Player<T>>>, ) { if let Ok(gamepad_buttons) = gamepads_buttons.get_single() { if gamepad_buttons.pressed(GamepadButtonType::South) { // move player } } } ``` --- ## Follow-up - [ ] Run conditions? - [ ] Rumble component # Changelog ## Added TODO ## Changed TODO ## Removed TODO ## Migration Guide TODO --------- Co-authored-by: Carter Anderson <mcanders1@gmail.com>		2024-09-27 20:07:20 +00:00
..
scene_viewer	Simpler lint fixes: makes ci lints work but disables a lint for now (#15376)	2024-09-24 11:42:59 +00:00
gamepad_viewer.rs	Implement gamepads as entities (#12770)	2024-09-27 20:07:20 +00:00