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Merge pull request #179 from janhohenheim/menu-egui
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,103 +1,60 @@ | ||
| use crate::file_system_interaction::asset_loading::FontAssets; | ||
| use crate::util::log_error::log_errors; | ||
| use crate::GameState; | ||
| use anyhow::Ok; | ||
| use anyhow::Result; | ||
| use bevy::prelude::*; | ||
| use bevy_egui::egui::FontFamily::Proportional; | ||
| use bevy_egui::egui::FontId; | ||
| use bevy_egui::egui::TextStyle::{Button, Heading}; | ||
| use bevy_egui::{egui, EguiContext}; | ||
|
|
||
| /// This plugin is responsible for the game menu | ||
| /// The menu is only drawn during the State `GameState::Menu` and is removed when that state is exited. | ||
| /// Because the Bevy UI situation is not quite mature yet, this work would ideally be done in egui instead, | ||
| /// so don't try to replicate this. | ||
| /// See [issue #13](https://github.com/janhohenheim/foxtrot/issues/13) | ||
| pub struct MenuPlugin; | ||
|
|
||
| impl Plugin for MenuPlugin { | ||
| fn build(&self, app: &mut App) { | ||
| app.init_resource::<ButtonColors>() | ||
| .add_system_set(SystemSet::on_enter(GameState::Menu).with_system(setup_menu)) | ||
| .add_system_set( | ||
| SystemSet::on_update(GameState::Menu) | ||
| .with_system(click_play_button.pipe(log_errors)), | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| #[derive(Resource)] | ||
| struct ButtonColors { | ||
| normal: Color, | ||
| hovered: Color, | ||
| } | ||
|
|
||
| impl Default for ButtonColors { | ||
| fn default() -> Self { | ||
| ButtonColors { | ||
| normal: Color::rgb(0.15, 0.15, 0.15), | ||
| hovered: Color::rgb(0.25, 0.25, 0.25), | ||
| } | ||
| app.add_system_set( | ||
| SystemSet::on_update(GameState::Menu).with_system(setup_menu.pipe(log_errors)), | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| fn setup_menu( | ||
| mut commands: Commands, | ||
| font_assets: Res<FontAssets>, | ||
| button_colors: Res<ButtonColors>, | ||
| ) { | ||
| commands | ||
| .spawn(ButtonBundle { | ||
| style: Style { | ||
| size: Size::new(Val::Px(120.0), Val::Px(50.0)), | ||
| margin: UiRect::all(Val::Auto), | ||
| justify_content: JustifyContent::Center, | ||
| align_items: AlignItems::Center, | ||
| ..default() | ||
| }, | ||
| background_color: button_colors.normal.into(), | ||
| ..default() | ||
| }) | ||
| .insert(Name::new("Play Button")) | ||
| .with_children(|parent| { | ||
| parent | ||
| .spawn(TextBundle { | ||
| text: Text { | ||
| sections: vec![TextSection { | ||
| value: "Play".to_string(), | ||
| style: TextStyle { | ||
| font: font_assets.fira_sans.clone(), | ||
| font_size: 40.0, | ||
| color: Color::rgb(0.9, 0.9, 0.9), | ||
| }, | ||
| }], | ||
| alignment: default(), | ||
| }, | ||
| ..default() | ||
| }) | ||
| .insert(Name::new("Play Text")); | ||
| }); | ||
| } | ||
|
|
||
| #[allow(clippy::type_complexity)] | ||
| fn click_play_button( | ||
| mut commands: Commands, | ||
| button_colors: Res<ButtonColors>, | ||
| mut egui_context: ResMut<EguiContext>, | ||
| mut state: ResMut<State<GameState>>, | ||
| mut interaction_query: Query< | ||
| (Entity, &Interaction, &mut BackgroundColor), | ||
| (Changed<Interaction>, With<Button>), | ||
| >, | ||
| ) -> Result<()> { | ||
| for (button, interaction, mut color) in interaction_query.iter_mut() { | ||
| match *interaction { | ||
| Interaction::Clicked => { | ||
| commands.entity(button).despawn_recursive(); | ||
| state.set(GameState::Playing)?; | ||
| } | ||
| Interaction::Hovered => { | ||
| *color = button_colors.hovered.into(); | ||
| } | ||
| Interaction::None => { | ||
| *color = button_colors.normal.into(); | ||
| } | ||
| } | ||
| } | ||
| get_menu_panel() | ||
| .show(egui_context.ctx_mut(), |ui| { | ||
| set_menu_style(ui.style_mut()); | ||
| ui.vertical_centered_justified(|ui| { | ||
| ui.add_space(50.); | ||
| ui.heading("Foxtrot"); | ||
| ui.separator(); | ||
| ui.add_space(50.); | ||
| if ui.button("Play").clicked() { | ||
| state.set(GameState::Playing)?; | ||
| } | ||
| Ok(()) | ||
| }) | ||
| .inner | ||
| }) | ||
| .inner?; | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn get_menu_panel() -> egui::CentralPanel { | ||
| egui::CentralPanel::default().frame(egui::Frame { | ||
| inner_margin: egui::style::Margin::same(60.), | ||
| ..default() | ||
| }) | ||
| } | ||
|
|
||
| fn set_menu_style(style: &mut egui::Style) { | ||
| style.text_styles = [ | ||
| (Heading, FontId::new(30.0, Proportional)), | ||
| (Button, FontId::new(20.0, Proportional)), | ||
| ] | ||
| .into(); | ||
| style.visuals.widgets.noninteractive.fg_stroke.color = egui::Color32::from_gray(250); | ||
| } |
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