Vendor dependencies for 0.3.0 release

vendor/bevy/examples/ui/window_fallthrough.rs

@@ -0,0 +1,54 @@
+//! This example illustrates how have a mouse's clicks/wheel/movement etc fall through the spawned transparent window to a window below.
+//! If you build this, and hit 'P' it should toggle on/off the mouse's passthrough.
+//! Note: this example will not work on following platforms: iOS / Android / Web / X11. Window fall through is not supported there.
+
+use bevy::prelude::*;
+
+fn main() {
+    App::new()
+        .insert_resource(ClearColor(Color::NONE)) // Use a transparent window, to make effects obvious.
+        .add_plugins(DefaultPlugins.set(WindowPlugin {
+            primary_window: Some(Window {
+                // Set the window's parameters, note we're setting the window to always be on top.
+                transparent: true,
+                decorations: true,
+                window_level: bevy::window::WindowLevel::AlwaysOnTop,
+                ..default()
+            }),
+            ..default()
+        }))
+        .add_systems(Startup, setup)
+        .add_systems(Update, toggle_mouse_passthrough) // This allows us to hit 'P' to toggle on/off the mouse's passthrough
+        .run();
+}
+
+fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
+    // UI camera
+    commands.spawn(Camera2d);
+    // Text with one span
+    commands.spawn((
+        // Accepts a `String` or any type that converts into a `String`, such as `&str`
+        Text::new("Hit 'P' then scroll/click around!"),
+        TextFont {
+            font: asset_server.load("fonts/FiraSans-Bold.ttf"),
+            font_size: 83.0, // Nice and big so you can see it!
+            ..default()
+        },
+        // Set the style of the TextBundle itself.
+        Node {
+            position_type: PositionType::Absolute,
+            bottom: Val::Px(5.),
+            right: Val::Px(10.),
+            ..default()
+        },
+    ));
+}
+// A simple system to handle some keyboard input and toggle on/off the hit test.
+fn toggle_mouse_passthrough(
+    keyboard_input: Res<ButtonInput<KeyCode>>,
+    mut window: Single<&mut Window>,
+) {
+    if keyboard_input.just_pressed(KeyCode::KeyP) {
+        window.cursor_options.hit_test = !window.cursor_options.hit_test;
+    }
+}