821 lines
33 KiB
Rust
821 lines
33 KiB
Rust
use bevy::prelude::*;
|
|
|
|
// This example will display a simple menu using Bevy UI where you can start a new game,
|
|
// change some settings or quit. There is no actual game, it will just display the current
|
|
// settings for 5 seconds before going back to the menu.
|
|
|
|
const TEXT_COLOR: Color = Color::rgb(0.9, 0.9, 0.9);
|
|
|
|
// Enum that will be used as a global state for the game
|
|
#[derive(Clone, Eq, PartialEq, Debug, Hash)]
|
|
enum GameState {
|
|
Splash,
|
|
Menu,
|
|
Game,
|
|
}
|
|
|
|
// One of the two settings that can be set through the menu. It will be a resource in the app
|
|
#[derive(Debug, Component, PartialEq, Eq, Clone, Copy)]
|
|
enum DisplayQuality {
|
|
Low,
|
|
Medium,
|
|
High,
|
|
}
|
|
|
|
// One of the two settings that can be set through the menu. It will be a resource in the app
|
|
#[derive(Debug, Component, PartialEq, Eq, Clone, Copy)]
|
|
struct Volume(u32);
|
|
|
|
fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
// Insert as resource the initial value for the settings resources
|
|
.insert_resource(DisplayQuality::Medium)
|
|
.insert_resource(Volume(7))
|
|
.add_startup_system(setup)
|
|
// Declare the game state, and set its startup value
|
|
.add_state(GameState::Splash)
|
|
// Adds the plugins for each state
|
|
.add_plugin(splash::SplashPlugin)
|
|
.add_plugin(menu::MenuPlugin)
|
|
.add_plugin(game::GamePlugin)
|
|
.run();
|
|
}
|
|
|
|
// As there isn't an actual game, setup is just adding a `UiCameraBundle`
|
|
fn setup(mut commands: Commands) {
|
|
commands.spawn_bundle(UiCameraBundle::default());
|
|
}
|
|
|
|
mod splash {
|
|
use bevy::prelude::*;
|
|
|
|
use super::{despawn_screen, GameState};
|
|
|
|
// This plugin will display a splash screen with Bevy logo for 1 second before switching to the menu
|
|
pub struct SplashPlugin;
|
|
|
|
impl Plugin for SplashPlugin {
|
|
fn build(&self, app: &mut App) {
|
|
// As this plugin is managing the splash screen, it will focus on the state `GameState::Splash`
|
|
app
|
|
// When entering the state, spawn everything needed for this screen
|
|
.add_system_set(SystemSet::on_enter(GameState::Splash).with_system(splash_setup))
|
|
// While in this state, run the `countdown` system
|
|
.add_system_set(SystemSet::on_update(GameState::Splash).with_system(countdown))
|
|
// When exiting the state, despawn everything that was spawned for this screen
|
|
.add_system_set(
|
|
SystemSet::on_exit(GameState::Splash)
|
|
.with_system(despawn_screen::<OnSplashScreen>),
|
|
);
|
|
}
|
|
}
|
|
|
|
// Tag component used to tag entities added on the splash screen
|
|
#[derive(Component)]
|
|
struct OnSplashScreen;
|
|
|
|
// Newtype to use a `Timer` for this screen as a resource
|
|
struct SplashTimer(Timer);
|
|
|
|
fn splash_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
let icon = asset_server.load("branding/icon.png");
|
|
// Display the logo
|
|
commands
|
|
.spawn_bundle(ImageBundle {
|
|
style: Style {
|
|
// This will center the logo
|
|
margin: Rect::all(Val::Auto),
|
|
// This will set the logo to be 200px wide, and auto adjust its height
|
|
size: Size::new(Val::Px(200.0), Val::Auto),
|
|
..Default::default()
|
|
},
|
|
image: UiImage(icon),
|
|
..Default::default()
|
|
})
|
|
.insert(OnSplashScreen);
|
|
// Insert the timer as a resource
|
|
commands.insert_resource(SplashTimer(Timer::from_seconds(1.0, false)));
|
|
}
|
|
|
|
// Tick the timer, and change state when finished
|
|
fn countdown(
|
|
mut game_state: ResMut<State<GameState>>,
|
|
time: Res<Time>,
|
|
mut timer: ResMut<SplashTimer>,
|
|
) {
|
|
if timer.0.tick(time.delta()).finished() {
|
|
game_state.set(GameState::Menu).unwrap();
|
|
}
|
|
}
|
|
}
|
|
|
|
mod game {
|
|
use bevy::prelude::*;
|
|
|
|
use super::{despawn_screen, DisplayQuality, GameState, Volume, TEXT_COLOR};
|
|
|
|
// This plugin will contain the game. In this case, it's just be a screen that will
|
|
// display the current settings for 5 seconds before returning to the menu
|
|
pub struct GamePlugin;
|
|
|
|
impl Plugin for GamePlugin {
|
|
fn build(&self, app: &mut App) {
|
|
app.add_system_set(SystemSet::on_enter(GameState::Game).with_system(game_setup))
|
|
.add_system_set(SystemSet::on_update(GameState::Game).with_system(game))
|
|
.add_system_set(
|
|
SystemSet::on_exit(GameState::Game).with_system(despawn_screen::<OnGameScreen>),
|
|
);
|
|
}
|
|
}
|
|
|
|
// Tag component used to tag entities added on the game screen
|
|
#[derive(Component)]
|
|
struct OnGameScreen;
|
|
|
|
struct GameTimer(Timer);
|
|
|
|
fn game_setup(
|
|
mut commands: Commands,
|
|
asset_server: Res<AssetServer>,
|
|
display_quality: Res<DisplayQuality>,
|
|
volume: Res<Volume>,
|
|
) {
|
|
let font = asset_server.load("fonts/FiraSans-Bold.ttf");
|
|
|
|
commands
|
|
// First create a `NodeBundle` for centering what we want to display
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
// This will center the current node
|
|
margin: Rect::all(Val::Auto),
|
|
// This will display its children in a column, from top to bottom. Unlike
|
|
// in Flexbox, Bevy origin is on bottom left, so the vertical axis is reversed
|
|
flex_direction: FlexDirection::ColumnReverse,
|
|
// `align_items` will align children on the cross axis. Here the main axis is
|
|
// vertical (column), so the cross axis is horizontal. This will center the
|
|
// children
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::BLACK.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(OnGameScreen)
|
|
.with_children(|parent| {
|
|
// Display two lines of text, the second one with the current settings
|
|
parent.spawn_bundle(TextBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Px(50.0)),
|
|
..Default::default()
|
|
},
|
|
text: Text::with_section(
|
|
"Will be back to the menu shortly...",
|
|
TextStyle {
|
|
font: font.clone(),
|
|
font_size: 80.0,
|
|
color: TEXT_COLOR,
|
|
},
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
parent.spawn_bundle(TextBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Px(50.0)),
|
|
..Default::default()
|
|
},
|
|
text: Text {
|
|
sections: vec![
|
|
TextSection {
|
|
value: format!("quality: {:?}", *display_quality),
|
|
style: TextStyle {
|
|
font: font.clone(),
|
|
font_size: 60.0,
|
|
color: Color::BLUE,
|
|
},
|
|
},
|
|
TextSection {
|
|
value: " - ".to_string(),
|
|
style: TextStyle {
|
|
font: font.clone(),
|
|
font_size: 60.0,
|
|
color: TEXT_COLOR,
|
|
},
|
|
},
|
|
TextSection {
|
|
value: format!("volume: {:?}", *volume),
|
|
style: TextStyle {
|
|
font: font.clone(),
|
|
font_size: 60.0,
|
|
color: Color::GREEN,
|
|
},
|
|
},
|
|
],
|
|
..Default::default()
|
|
},
|
|
..Default::default()
|
|
});
|
|
});
|
|
// Spawn a 5 seconds timer to trigger going back to the menu
|
|
commands.insert_resource(GameTimer(Timer::from_seconds(5.0, false)));
|
|
}
|
|
|
|
// Tick the timer, and change state when finished
|
|
fn game(
|
|
time: Res<Time>,
|
|
mut game_state: ResMut<State<GameState>>,
|
|
mut timer: ResMut<GameTimer>,
|
|
) {
|
|
if timer.0.tick(time.delta()).finished() {
|
|
game_state.set(GameState::Menu).unwrap();
|
|
}
|
|
}
|
|
}
|
|
|
|
mod menu {
|
|
use bevy::{app::AppExit, prelude::*};
|
|
|
|
use super::{despawn_screen, DisplayQuality, GameState, Volume, TEXT_COLOR};
|
|
|
|
// This plugin manages the menu, with 5 different screens:
|
|
// - a main menu with "New Game", "Settings", "Quit"
|
|
// - a settings menu with two submenus and a back button
|
|
// - two settings screen with a setting that can be set and a back button
|
|
pub struct MenuPlugin;
|
|
|
|
impl Plugin for MenuPlugin {
|
|
fn build(&self, app: &mut App) {
|
|
app
|
|
// At start, the menu is not enabled. This will be changed in `menu_setup` when
|
|
// entering the `GameState::Menu` state.
|
|
// Current screen in the menu is handled by an independent state from `GameState`
|
|
.add_state(MenuState::Disabled)
|
|
.add_system_set(SystemSet::on_enter(GameState::Menu).with_system(menu_setup))
|
|
// Systems to handle the main menu screen
|
|
.add_system_set(SystemSet::on_enter(MenuState::Main).with_system(main_menu_setup))
|
|
.add_system_set(
|
|
SystemSet::on_exit(MenuState::Main)
|
|
.with_system(despawn_screen::<OnMainMenuScreen>),
|
|
)
|
|
// Systems to handle the settings menu screen
|
|
.add_system_set(
|
|
SystemSet::on_enter(MenuState::Settings).with_system(settings_menu_setup),
|
|
)
|
|
.add_system_set(
|
|
SystemSet::on_exit(MenuState::Settings)
|
|
.with_system(despawn_screen::<OnSettingsMenuScreen>),
|
|
)
|
|
// Systems to handle the display settings screen
|
|
.add_system_set(
|
|
SystemSet::on_enter(MenuState::SettingsDisplay)
|
|
.with_system(display_settings_menu_setup),
|
|
)
|
|
.add_system_set(
|
|
SystemSet::on_update(MenuState::SettingsDisplay)
|
|
.with_system(setting_button::<DisplayQuality>),
|
|
)
|
|
.add_system_set(
|
|
SystemSet::on_exit(MenuState::SettingsDisplay)
|
|
.with_system(despawn_screen::<OnDisplaySettingsMenuScreen>),
|
|
)
|
|
// Systems to handle the sound settings screen
|
|
.add_system_set(
|
|
SystemSet::on_enter(MenuState::SettingsSound)
|
|
.with_system(sound_settings_menu_setup),
|
|
)
|
|
.add_system_set(
|
|
SystemSet::on_update(MenuState::SettingsSound)
|
|
.with_system(setting_button::<Volume>),
|
|
)
|
|
.add_system_set(
|
|
SystemSet::on_exit(MenuState::SettingsSound)
|
|
.with_system(despawn_screen::<OnSoundSettingsMenuScreen>),
|
|
)
|
|
// Common systems to all screens that handles buttons behaviour
|
|
.add_system_set(
|
|
SystemSet::on_update(GameState::Menu)
|
|
.with_system(menu_action)
|
|
.with_system(button_system),
|
|
);
|
|
}
|
|
}
|
|
|
|
// State used for the current menu screen
|
|
#[derive(Clone, Eq, PartialEq, Debug, Hash)]
|
|
enum MenuState {
|
|
Main,
|
|
Settings,
|
|
SettingsDisplay,
|
|
SettingsSound,
|
|
Disabled,
|
|
}
|
|
|
|
// Tag component used to tag entities added on the main menu screen
|
|
#[derive(Component)]
|
|
struct OnMainMenuScreen;
|
|
|
|
// Tag component used to tag entities added on the settings menu screen
|
|
#[derive(Component)]
|
|
struct OnSettingsMenuScreen;
|
|
|
|
// Tag component used to tag entities added on the display settings menu screen
|
|
#[derive(Component)]
|
|
struct OnDisplaySettingsMenuScreen;
|
|
|
|
// Tag component used to tag entities added on the sound settings menu screen
|
|
#[derive(Component)]
|
|
struct OnSoundSettingsMenuScreen;
|
|
|
|
const NORMAL_BUTTON: Color = Color::rgb(0.15, 0.15, 0.15);
|
|
const HOVERED_BUTTON: Color = Color::rgb(0.25, 0.25, 0.25);
|
|
const HOVERED_PRESSED_BUTTON: Color = Color::rgb(0.25, 0.65, 0.25);
|
|
const PRESSED_BUTTON: Color = Color::rgb(0.35, 0.75, 0.35);
|
|
|
|
// Tag component used to mark wich setting is currently selected
|
|
#[derive(Component)]
|
|
struct SelectedOption;
|
|
|
|
// All actions that can be triggered from a button click
|
|
#[derive(Component)]
|
|
enum MenuButtonAction {
|
|
Play,
|
|
Settings,
|
|
SettingsDisplay,
|
|
SettingsSound,
|
|
BackToMainMenu,
|
|
BackToSettings,
|
|
Quit,
|
|
}
|
|
|
|
// This system handles changing all buttons color based on mouse interaction
|
|
fn button_system(
|
|
mut interaction_query: Query<
|
|
(&Interaction, &mut UiColor, Option<&SelectedOption>),
|
|
(Changed<Interaction>, With<Button>),
|
|
>,
|
|
) {
|
|
for (interaction, mut color, selected) in interaction_query.iter_mut() {
|
|
*color = match (*interaction, selected) {
|
|
(Interaction::Clicked, _) => PRESSED_BUTTON.into(),
|
|
(Interaction::Hovered, Some(_)) => HOVERED_PRESSED_BUTTON.into(),
|
|
(Interaction::Hovered, None) => HOVERED_BUTTON.into(),
|
|
(Interaction::None, Some(_)) => PRESSED_BUTTON.into(),
|
|
(Interaction::None, None) => NORMAL_BUTTON.into(),
|
|
}
|
|
}
|
|
}
|
|
|
|
// This system updates the settings when a new value for a setting is selected, and marks
|
|
// the button as the one currently selected
|
|
fn setting_button<T: Component + PartialEq + Copy>(
|
|
interaction_query: Query<(&Interaction, &T, Entity), (Changed<Interaction>, With<Button>)>,
|
|
mut selected_query: Query<(Entity, &mut UiColor), With<SelectedOption>>,
|
|
mut commands: Commands,
|
|
mut setting: ResMut<T>,
|
|
) {
|
|
for (interaction, button_setting, entity) in interaction_query.iter() {
|
|
if *interaction == Interaction::Clicked && *setting != *button_setting {
|
|
let (previous_button, mut previous_color) = selected_query.single_mut();
|
|
*previous_color = NORMAL_BUTTON.into();
|
|
commands.entity(previous_button).remove::<SelectedOption>();
|
|
commands.entity(entity).insert(SelectedOption);
|
|
*setting = *button_setting;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn menu_setup(mut menu_state: ResMut<State<MenuState>>) {
|
|
let _ = menu_state.set(MenuState::Main);
|
|
}
|
|
|
|
fn main_menu_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
let font = asset_server.load("fonts/FiraSans-Bold.ttf");
|
|
// Common style for all buttons on the screen
|
|
let button_style = Style {
|
|
size: Size::new(Val::Px(250.0), Val::Px(65.0)),
|
|
margin: Rect::all(Val::Px(20.0)),
|
|
justify_content: JustifyContent::Center,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
};
|
|
let button_icon_style = Style {
|
|
size: Size::new(Val::Px(30.0), Val::Auto),
|
|
// This takes the icons out of the flexbox flow, to be positionned exactly
|
|
position_type: PositionType::Absolute,
|
|
// The icon will be close to the left border of the button
|
|
position: Rect {
|
|
left: Val::Px(10.0),
|
|
right: Val::Auto,
|
|
top: Val::Auto,
|
|
bottom: Val::Auto,
|
|
},
|
|
..Default::default()
|
|
};
|
|
let button_text_style = TextStyle {
|
|
font: font.clone(),
|
|
font_size: 40.0,
|
|
color: TEXT_COLOR,
|
|
};
|
|
|
|
commands
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Auto),
|
|
flex_direction: FlexDirection::ColumnReverse,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(OnMainMenuScreen)
|
|
.with_children(|parent| {
|
|
// Display the game name
|
|
parent.spawn_bundle(TextBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Px(50.0)),
|
|
..Default::default()
|
|
},
|
|
text: Text::with_section(
|
|
"Bevy Game Menu UI",
|
|
TextStyle {
|
|
font: font.clone(),
|
|
font_size: 80.0,
|
|
color: TEXT_COLOR,
|
|
},
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
|
|
// Display three buttons for each action available from the main menu:
|
|
// - new game
|
|
// - settings
|
|
// - quit
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style.clone(),
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::Play)
|
|
.with_children(|parent| {
|
|
let icon = asset_server.load("textures/Game Icons/right.png");
|
|
parent.spawn_bundle(ImageBundle {
|
|
style: button_icon_style.clone(),
|
|
image: UiImage(icon),
|
|
..Default::default()
|
|
});
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"New Game",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
});
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style.clone(),
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::Settings)
|
|
.with_children(|parent| {
|
|
let icon = asset_server.load("textures/Game Icons/wrench.png");
|
|
parent.spawn_bundle(ImageBundle {
|
|
style: button_icon_style.clone(),
|
|
image: UiImage(icon),
|
|
..Default::default()
|
|
});
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"Settings",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
});
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style,
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::Quit)
|
|
.with_children(|parent| {
|
|
let icon = asset_server.load("textures/Game Icons/exitRight.png");
|
|
parent.spawn_bundle(ImageBundle {
|
|
style: button_icon_style,
|
|
image: UiImage(icon),
|
|
..Default::default()
|
|
});
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section("Quit", button_text_style, Default::default()),
|
|
..Default::default()
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
fn settings_menu_setup(mut commands: Commands, asset_server: Res<AssetServer>) {
|
|
let button_style = Style {
|
|
size: Size::new(Val::Px(200.0), Val::Px(65.0)),
|
|
margin: Rect::all(Val::Px(20.0)),
|
|
justify_content: JustifyContent::Center,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
};
|
|
let button_text_style = TextStyle {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: 40.0,
|
|
color: TEXT_COLOR,
|
|
};
|
|
|
|
commands
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Auto),
|
|
flex_direction: FlexDirection::ColumnReverse,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(OnSettingsMenuScreen)
|
|
.with_children(|parent| {
|
|
// Display two buttons for the submenus
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style.clone(),
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::SettingsDisplay)
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"Display",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
});
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style.clone(),
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::SettingsSound)
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"Sound",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
});
|
|
// Display the back button to return to the main menu screen
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style,
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::BackToMainMenu)
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section("Back", button_text_style, Default::default()),
|
|
..Default::default()
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
fn display_settings_menu_setup(
|
|
mut commands: Commands,
|
|
asset_server: Res<AssetServer>,
|
|
display_quality: Res<DisplayQuality>,
|
|
) {
|
|
let button_style = Style {
|
|
size: Size::new(Val::Px(200.0), Val::Px(65.0)),
|
|
margin: Rect::all(Val::Px(20.0)),
|
|
justify_content: JustifyContent::Center,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
};
|
|
let button_text_style = TextStyle {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: 40.0,
|
|
color: TEXT_COLOR,
|
|
};
|
|
|
|
commands
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Auto),
|
|
flex_direction: FlexDirection::ColumnReverse,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(OnDisplaySettingsMenuScreen)
|
|
.with_children(|parent| {
|
|
// Create a new `NodeBundle`, this time not setting its `flex_direction`. It will
|
|
// use the default value, `FlexDirection::Row`, from left to right.
|
|
parent
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.with_children(|parent| {
|
|
// Display a label for the current setting
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"Display Quality",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
// Display a button for each possible value
|
|
for quality_setting in [
|
|
DisplayQuality::Low,
|
|
DisplayQuality::Medium,
|
|
DisplayQuality::High,
|
|
] {
|
|
let mut entity = parent.spawn_bundle(ButtonBundle {
|
|
style: Style {
|
|
size: Size::new(Val::Px(150.0), Val::Px(65.0)),
|
|
..button_style.clone()
|
|
},
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
});
|
|
entity.insert(quality_setting).with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
format!("{:?}", quality_setting),
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
});
|
|
if *display_quality == quality_setting {
|
|
entity.insert(SelectedOption);
|
|
}
|
|
}
|
|
});
|
|
// Display the back button to return to the settings screen
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style,
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::BackToSettings)
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section("Back", button_text_style, Default::default()),
|
|
..Default::default()
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
fn sound_settings_menu_setup(
|
|
mut commands: Commands,
|
|
asset_server: Res<AssetServer>,
|
|
volume: Res<Volume>,
|
|
) {
|
|
let button_style = Style {
|
|
size: Size::new(Val::Px(200.0), Val::Px(65.0)),
|
|
margin: Rect::all(Val::Px(20.0)),
|
|
justify_content: JustifyContent::Center,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
};
|
|
let button_text_style = TextStyle {
|
|
font: asset_server.load("fonts/FiraSans-Bold.ttf"),
|
|
font_size: 40.0,
|
|
color: TEXT_COLOR,
|
|
};
|
|
|
|
commands
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
margin: Rect::all(Val::Auto),
|
|
flex_direction: FlexDirection::ColumnReverse,
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(OnSoundSettingsMenuScreen)
|
|
.with_children(|parent| {
|
|
parent
|
|
.spawn_bundle(NodeBundle {
|
|
style: Style {
|
|
align_items: AlignItems::Center,
|
|
..Default::default()
|
|
},
|
|
color: Color::CRIMSON.into(),
|
|
..Default::default()
|
|
})
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section(
|
|
"Volume",
|
|
button_text_style.clone(),
|
|
Default::default(),
|
|
),
|
|
..Default::default()
|
|
});
|
|
for volume_setting in [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] {
|
|
let mut entity = parent.spawn_bundle(ButtonBundle {
|
|
style: Style {
|
|
size: Size::new(Val::Px(30.0), Val::Px(65.0)),
|
|
..button_style.clone()
|
|
},
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
});
|
|
entity.insert(Volume(volume_setting));
|
|
if *volume == Volume(volume_setting) {
|
|
entity.insert(SelectedOption);
|
|
}
|
|
}
|
|
});
|
|
parent
|
|
.spawn_bundle(ButtonBundle {
|
|
style: button_style,
|
|
color: NORMAL_BUTTON.into(),
|
|
..Default::default()
|
|
})
|
|
.insert(MenuButtonAction::BackToSettings)
|
|
.with_children(|parent| {
|
|
parent.spawn_bundle(TextBundle {
|
|
text: Text::with_section("Back", button_text_style, Default::default()),
|
|
..Default::default()
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
fn menu_action(
|
|
interaction_query: Query<
|
|
(&Interaction, &MenuButtonAction),
|
|
(Changed<Interaction>, With<Button>),
|
|
>,
|
|
mut app_exit_events: EventWriter<AppExit>,
|
|
mut menu_state: ResMut<State<MenuState>>,
|
|
mut game_state: ResMut<State<GameState>>,
|
|
) {
|
|
for (interaction, menu_button_action) in interaction_query.iter() {
|
|
if *interaction == Interaction::Clicked {
|
|
match menu_button_action {
|
|
MenuButtonAction::Quit => app_exit_events.send(AppExit),
|
|
MenuButtonAction::Play => {
|
|
game_state.set(GameState::Game).unwrap();
|
|
menu_state.set(MenuState::Disabled).unwrap()
|
|
}
|
|
MenuButtonAction::Settings => menu_state.set(MenuState::Settings).unwrap(),
|
|
MenuButtonAction::SettingsDisplay => {
|
|
menu_state.set(MenuState::SettingsDisplay).unwrap()
|
|
}
|
|
MenuButtonAction::SettingsSound => {
|
|
menu_state.set(MenuState::SettingsSound).unwrap()
|
|
}
|
|
MenuButtonAction::BackToMainMenu => menu_state.set(MenuState::Main).unwrap(),
|
|
MenuButtonAction::BackToSettings => {
|
|
menu_state.set(MenuState::Settings).unwrap()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Generic system that takes a component as a parameter, and will despawn all entities with that component
|
|
fn despawn_screen<T: Component>(to_despawn: Query<Entity, With<T>>, mut commands: Commands) {
|
|
for entity in to_despawn.iter() {
|
|
commands.entity(entity).despawn_recursive();
|
|
}
|
|
}
|