feat(controller): add simple blocking HUD

crates/controller/src/hud.rs

@@ -1,14 +1,22 @@
-use bevy::prelude::*;
-use de_core::{screengeom::ScreenRect, stages::GameStage, state::AppState};
+use bevy::{ecs::system::SystemParam, prelude::*};
+use de_core::{
+    screengeom::ScreenRect,
+    stages::GameStage,
+    state::{AppState, GameState},
+};
+use glam::Vec3Swizzles;
 use iyes_loopless::prelude::*;
 
+use crate::hud_components;
+
 const SELECTION_BOX_COLOR: Color = Color::rgba(0., 0.5, 0.8, 0.2);
 
 pub(crate) struct HudPlugin;
 
 impl Plugin for HudPlugin {
     fn build(&self, app: &mut App) {
         app.add_event::<UpdateSelectionBoxEvent>()
+            .add_enter_system(GameState::Playing, spawn_hud)
             .add_system_set_to_stage(
                 GameStage::PostUpdate,
                 SystemSet::new().with_system(process_events.run_in_state(AppState::InGame)),
@@ -79,3 +87,38 @@ fn process_events(
         }
     }
 }
+
+pub fn spawn_hud(mut commands: Commands) {
+    hud_components::spawn_details(&mut commands);
+    hud_components::spawn_action_bar(&mut commands);
+    hud_components::spawn_map(&mut commands);
+}
+
+/// Top-level non-transparent UI node. All such nodes are marked with this component and no descendants have it attached
+#[derive(Component)]
+pub struct HudTopVisibleNode;
+
+#[derive(SystemParam)]
+pub(crate) struct HudNodes<'w, 's> {
+    hud: Query<'w, 's, (&'static GlobalTransform, &'static Node), With<HudTopVisibleNode>>,
+    windows: Res<'w, Windows>,
+}
+
+impl<'w, 's> HudNodes<'w, 's> {
+    pub(crate) fn contains_point(&mut self, point: &Vec2) -> bool {
+        let window = self.windows.get_primary().unwrap();
+        let win_size = Vec2::new(window.width(), window.height());
+        self.hud.iter().any(|(box_transform, node)| {
+            // WARNING: This is because mouse y starts on bottom, GlobalTransform on top
+            let mouse_position = Vec2::new(point.x, win_size.y - point.y);
+
+            let box_size = node.size();
+            let box_transform: Vec3 = box_transform.translation();
+            // WARNING: This is because GlobalTransform is centered, width/2 to left and to right, same on vertical
+            let box_position = box_transform.xy() - box_size / 2.;
+
+            mouse_position.cmpge(box_position).all()
+                && mouse_position.cmple(box_position + box_size).all()
+        })
+    }
+}

crates/controller/src/hud_components.rs

@@ -0,0 +1,77 @@
+use bevy::prelude::*;
+
+use crate::hud::HudTopVisibleNode;
+
+const HUD_COLOR: Color = Color::BLACK;
+
+pub(crate) fn spawn_details(commands: &mut Commands) {
+    commands.spawn((
+        NodeBundle {
+            style: Style {
+                size: Size {
+                    width: Val::Percent(20.),
+                    height: Val::Percent(30.),
+                },
+                position_type: PositionType::Absolute,
+                position: UiRect::new(
+                    Val::Percent(0.),
+                    Val::Percent(20.),
+                    Val::Percent(70.),
+                    Val::Percent(100.),
+                ),
+                ..default()
+            },
+            background_color: HUD_COLOR.into(),
+            ..default()
+        },
+        HudTopVisibleNode,
+    ));
+}
+
+pub(crate) fn spawn_action_bar(commands: &mut Commands) {
+    commands.spawn((
+        NodeBundle {
+            style: Style {
+                size: Size {
+                    width: Val::Percent(60.),
+                    height: Val::Percent(15.),
+                },
+                position_type: PositionType::Absolute,
+                position: UiRect::new(
+                    Val::Percent(20.),
+                    Val::Percent(80.),
+                    Val::Percent(85.),
+                    Val::Percent(100.),
+                ),
+                ..default()
+            },
+            background_color: HUD_COLOR.into(),
+            ..default()
+        },
+        HudTopVisibleNode,
+    ));
+}
+
+pub(crate) fn spawn_map(commands: &mut Commands) {
+    commands.spawn((
+        NodeBundle {
+            style: Style {
+                size: Size {
+                    width: Val::Percent(20.),
+                    height: Val::Percent(30.),
+                },
+                position_type: PositionType::Absolute,
+                position: UiRect::new(
+                    Val::Percent(80.),
+                    Val::Percent(100.),
+                    Val::Percent(70.),
+                    Val::Percent(100.),
+                ),
+                ..default()
+            },
+            background_color: HUD_COLOR.into(),
+            ..default()
+        },
+        HudTopVisibleNode,
+    ));
+}

crates/controller/src/lib.rs

@@ -17,6 +17,7 @@ mod draft;
 mod dragselect;
 mod frustum;
 mod hud;
+mod hud_components;
 mod keyboard;
 mod menu;
 mod mouse;

crates/controller/src/mouse.rs

@@ -6,6 +6,8 @@ use bevy::{
 use de_core::{screengeom::ScreenRect, stages::GameStage, state::GameState};
 use iyes_loopless::prelude::*;
 
+use crate::hud::HudNodes;
+
 const DRAGGING_THRESHOLD: f32 = 0.02;
 const DOUBLE_CLICK_TIME: f64 = 0.5;
 
@@ -212,11 +214,12 @@ enum DragResolution {
     Rect(ScreenRect),
 }
 
-fn update_position(windows: Res<Windows>, mut mouse: ResMut<MousePosition>) {
+fn update_position(windows: Res<Windows>, mut hud: HudNodes, mut mouse: ResMut<MousePosition>) {
     let window = windows.get_primary().unwrap();
     mouse.set_position(
         window
             .cursor_position()
+            .filter(|position| !hud.contains_point(position))
             .map(|position| position / Vec2::new(window.width(), window.height()))
             .map(|normalised_position| normalised_position.clamp(Vec2::ZERO, Vec2::ONE)),
     );