Rename keys like LAlt to AltLeft (#8792)

# Objective

The
[`KeyCode`](https://github.com/bevyengine/bevy/blob/main/crates/bevy_input/src/keyboard.rs#L86)
enum cases `LWin` and `RWin` are too opinionated because they are also
assigned meaning by non-Windows operating systems. macOS calls the keys
completely different.

## Solution

Match [winits
approach](https://github.com/rust-windowing/winit/blob/master/src/keyboard.rs#L1635)
naming convention.

---

## Migration Guide

Migrate by replacing:
- `LAlt` → `AltLeft`
- `RAlt` → `AltRight`
- `LBracket` → `BracketLeft`
- `RBracket` → `BracketRight`
- `LControl` → `ControlLeft`
- `RControl` → `ControlRight`
- `LShift` → `ShiftLeft`
- `RShift` → `ShiftRight`
- `LWin` → `SuperLeft`
- `RWin` → `SuperRight`

crates/bevy_input/src/keyboard.rs

@@ -318,16 +318,19 @@ pub enum KeyCode {
     /// The `Kanji` key.
     Kanji,
 
-    /// The `LAlt` / `Left Alt` key. Maps to `Left Option` on Mac.
+    /// The `Left Alt` key. Maps to `Left Option` on Mac.
-    LAlt,
+    AltLeft,
-    /// The `LBracket` / `Left Bracket` key.
+    /// The `Left Bracket` / `[` key.
-    LBracket,
+    BracketLeft,
-    /// The `LControl` / `Left Control` key.
+    /// The `Left Control` key.
-    LControl,
+    ControlLeft,
-    /// The `LShift` / `Left Shift` key.
+    /// The `Left Shift` key.
-    LShift,
+    ShiftLeft,
-    /// The `LWin` / `Left Windows` key. Maps to `Left Command` on Mac.
+    /// The `Left Super` key.
-    LWin,
+    /// Generic keyboards usually display this key with the *Microsoft Windows* logo.
+    /// Apple keyboards call this key the *Command Key* and display it using the ⌘ character.
+    #[doc(alias("LWin", "LMeta", "LLogo"))]
+    SuperLeft,
 
     /// The `Mail` key.
     Mail,
@@ -368,16 +371,19 @@ pub enum KeyCode {
     /// The `PrevTrack` key.
     PrevTrack,
 
-    /// The `RAlt` / `Right Alt` key. Maps to `Right Option` on Mac.
+    /// The `Right Alt` key. Maps to `Right Option` on Mac.
-    RAlt,
+    AltRight,
-    /// The `RBracket` / `Right Bracket` key.
+    /// The `Right Bracket` / `]` key.
-    RBracket,
+    BracketRight,
-    /// The `RControl` / `Right Control` key.
+    /// The `Right Control` key.
-    RControl,
+    ControlRight,
-    /// The `RShift` / `Right Shift` key.
+    /// The `Right Shift` key.
-    RShift,
+    ShiftRight,
-    /// The `RWin` / `Right Windows` key. Maps to `Right Command` on Mac.
+    /// The `Right Super` key.
-    RWin,
+    /// Generic keyboards usually display this key with the *Microsoft Windows* logo.
+    /// Apple keyboards call this key the *Command Key* and display it using the ⌘ character.
+    #[doc(alias("RWin", "RMeta", "RLogo"))]
+    SuperRight,
 
     /// The `Semicolon` / `;` key.
     Semicolon,

crates/bevy_winit/src/converters.rs

@@ -172,11 +172,11 @@ pub fn convert_virtual_key_code(virtual_key_code: winit::event::VirtualKeyCode)
         winit::event::VirtualKeyCode::Grave => KeyCode::Grave,
         winit::event::VirtualKeyCode::Kana => KeyCode::Kana,
         winit::event::VirtualKeyCode::Kanji => KeyCode::Kanji,
-        winit::event::VirtualKeyCode::LAlt => KeyCode::LAlt,
+        winit::event::VirtualKeyCode::LAlt => KeyCode::AltLeft,
-        winit::event::VirtualKeyCode::LBracket => KeyCode::LBracket,
+        winit::event::VirtualKeyCode::LBracket => KeyCode::BracketLeft,
-        winit::event::VirtualKeyCode::LControl => KeyCode::LControl,
+        winit::event::VirtualKeyCode::LControl => KeyCode::ControlLeft,
-        winit::event::VirtualKeyCode::LShift => KeyCode::LShift,
+        winit::event::VirtualKeyCode::LShift => KeyCode::ShiftLeft,
-        winit::event::VirtualKeyCode::LWin => KeyCode::LWin,
+        winit::event::VirtualKeyCode::LWin => KeyCode::SuperLeft,
         winit::event::VirtualKeyCode::Mail => KeyCode::Mail,
         winit::event::VirtualKeyCode::MediaSelect => KeyCode::MediaSelect,
         winit::event::VirtualKeyCode::MediaStop => KeyCode::MediaStop,
@@ -196,11 +196,11 @@ pub fn convert_virtual_key_code(virtual_key_code: winit::event::VirtualKeyCode)
         winit::event::VirtualKeyCode::PlayPause => KeyCode::PlayPause,
         winit::event::VirtualKeyCode::Power => KeyCode::Power,
         winit::event::VirtualKeyCode::PrevTrack => KeyCode::PrevTrack,
-        winit::event::VirtualKeyCode::RAlt => KeyCode::RAlt,
+        winit::event::VirtualKeyCode::RAlt => KeyCode::AltRight,
-        winit::event::VirtualKeyCode::RBracket => KeyCode::RBracket,
+        winit::event::VirtualKeyCode::RBracket => KeyCode::BracketRight,
-        winit::event::VirtualKeyCode::RControl => KeyCode::RControl,
+        winit::event::VirtualKeyCode::RControl => KeyCode::ControlRight,
-        winit::event::VirtualKeyCode::RShift => KeyCode::RShift,
+        winit::event::VirtualKeyCode::RShift => KeyCode::ShiftRight,
-        winit::event::VirtualKeyCode::RWin => KeyCode::RWin,
+        winit::event::VirtualKeyCode::RWin => KeyCode::SuperRight,
         winit::event::VirtualKeyCode::Semicolon => KeyCode::Semicolon,
         winit::event::VirtualKeyCode::Slash => KeyCode::Slash,
         winit::event::VirtualKeyCode::Sleep => KeyCode::Sleep,

examples/3d/fog.rs

@@ -284,12 +284,12 @@ fn update_system(
         fog.color.set_r(r);
     }
 
-    if keycode.pressed(KeyCode::LBracket) {
+    if keycode.pressed(KeyCode::BracketLeft) {
         let g = (fog.color.g() - 0.1 * delta).max(0.0);
         fog.color.set_g(g);
     }
 
-    if keycode.pressed(KeyCode::RBracket) {
+    if keycode.pressed(KeyCode::BracketRight) {
         let g = (fog.color.g() + 0.1 * delta).min(1.0);
         fog.color.set_g(g);
     }

examples/3d/shadow_biases.rs

@@ -256,7 +256,7 @@ impl Default for CameraController {
             key_right: KeyCode::D,
             key_up: KeyCode::E,
             key_down: KeyCode::Q,
-            key_run: KeyCode::LShift,
+            key_run: KeyCode::ShiftLeft,
             walk_speed: 10.0,
             run_speed: 30.0,
             friction: 0.5,

examples/3d/skybox.rs

@@ -209,7 +209,7 @@ impl Default for CameraController {
             key_right: KeyCode::D,
             key_up: KeyCode::E,
             key_down: KeyCode::Q,
-            key_run: KeyCode::LShift,
+            key_run: KeyCode::ShiftLeft,
             mouse_key_enable_mouse: MouseButton::Left,
             keyboard_key_enable_mouse: KeyCode::M,
             walk_speed: 2.0,

examples/input/keyboard_modifiers.rs

@@ -11,8 +11,8 @@ fn main() {
 
 /// This system prints when `Ctrl + Shift + A` is pressed
 fn keyboard_input_system(input: Res<Input<KeyCode>>) {
-    let shift = input.any_pressed([KeyCode::LShift, KeyCode::RShift]);
+    let shift = input.any_pressed([KeyCode::ShiftLeft, KeyCode::ShiftRight]);
-    let ctrl = input.any_pressed([KeyCode::LControl, KeyCode::RControl]);
+    let ctrl = input.any_pressed([KeyCode::ControlLeft, KeyCode::ControlRight]);
 
     if ctrl && shift && input.just_pressed(KeyCode::A) {
         info!("Just pressed Ctrl + Shift + A!");

examples/tools/scene_viewer/camera_controller_plugin.rs

@@ -48,7 +48,7 @@ impl Default for CameraController {
             key_right: KeyCode::D,
             key_up: KeyCode::E,
             key_down: KeyCode::Q,
-            key_run: KeyCode::LShift,
+            key_run: KeyCode::ShiftLeft,
             mouse_key_enable_mouse: MouseButton::Left,
             keyboard_key_enable_mouse: KeyCode::M,
             walk_speed: 5.0,