Implement post-match screen and match finishing. (#76)

Reviewed-on: #76
Co-authored-by: Álex Román Núñez <eirexe@eirteam.moe>

src/menus/match_results/mod.rs

@@ -0,0 +1,44 @@
+use bevy::{prelude::*, text::FontSourceTemplate};
+
+use crate::{AppState, menus::{MenuMarker, spawn_menu}};
+
+pub fn setup_post_match_menu(
+    existing_menu: Option<Single<Entity, With<MenuMarker>>>,
+    commands: Commands,
+) {
+    let menu = bsn! {
+        Node {
+                flex_direction: FlexDirection::Column,
+                width: percent(100),
+                height: percent(100),
+                justify_content: JustifyContent::Center,
+                align_items: AlignItems::Center
+        }
+        Children [
+        (
+            Text("[Insert beautiful post-match screen here]")
+            TextFont {
+                font: FontSourceTemplate::Handle("fonts/roboto.ttf"),
+                font_size: px(super::style::H1_SIZE),
+            }
+            TextColor(Color::srgb(0.9, 0.9, 0.9))
+        ),
+            Text("Press any button/key to continue...")
+            TextFont {
+                font: FontSourceTemplate::Handle("fonts/roboto.ttf"),
+                font_size: px(super::style::H3_SIZE),
+            }
+            TextColor(Color::srgb(0.9, 0.9, 0.9))
+        ]
+    };
+
+    spawn_menu(existing_menu, commands, menu);
+}
+
+pub fn check_return_to_character_select(gamepads: Query<&Gamepad>, keyboard: Res<ButtonInput<KeyCode>>, mut next_state: ResMut<NextState<AppState>>) {
+    let any_pressed = gamepads.iter().any(|gp| gp.get_just_pressed().count() > 0);
+    let any_pressed = any_pressed || keyboard.get_just_pressed().count() > 0;
+    if any_pressed {
+        next_state.set(AppState::MainMenu);
+    }
+}