Add resources system and update player struct

crates/border-wars/src/lib.rs

@@ -43,4 +43,7 @@ pub struct Player {
 
     /// The color of the player.
     pub color: (u8, u8, u8),
+
+    /// The resources of the player.
+    pub resources: resources::Resources,
 }

crates/border-wars/src/resources.rs

@@ -1,6 +1,10 @@
 //! All program related to the resources of the game.
 
+use bevnet::{Receive, SendTo};
 use bevy::prelude::*;
+use serde::{Deserialize, Serialize};
+
+use crate::Player;
 
 /// The plugin that manage the resources.
 pub struct ResourcesPlugin;
@@ -9,12 +13,15 @@ impl Plugin for ResourcesPlugin {
     fn build(&self, app: &mut App) {
         app.add_event::<ResetResources>()
             .insert_resource(Resources::initial())
-            .add_systems(Update, handle_reset_resources);
+            .add_systems(
+                Update,
+                (handle_reset_resources, save_resources, update_resources),
+            );
     }
 }
 
 /// The resources of the game.
-#[derive(Resource, Default)]
+#[derive(Resource, Default, Debug, Clone, Copy, PartialEq, Eq, Hash, Serialize, Deserialize)]
 pub struct Resources {
     /// The stone resource.
     pub stone: u32,
@@ -28,7 +35,7 @@ pub struct Resources {
 
 impl Resources {
     /// Returns the initial resources of the game.
-    const fn initial() -> Self {
+    pub const fn initial() -> Self {
         Self {
             stone: 100,
             wood: 100,
@@ -50,3 +57,38 @@ fn handle_reset_resources(
         *resources = Resources::initial();
     }
 }
+
+/// An event send to update the resources of a player.
+#[derive(Event, Serialize, Deserialize, Clone, Copy)]
+pub struct UpdateResources(pub Resources);
+
+/// Save the resources of the game when you modify it.
+fn save_resources(
+    mut update_resources_event: EventWriter<SendTo<UpdateResources>>,
+    resources: Res<Resources>,
+    players: Query<&Player>,
+) {
+    if !resources.is_changed() {
+        return;
+    }
+
+    let event = UpdateResources(*resources);
+
+    for player in players.iter() {
+        update_resources_event.send(SendTo(player.uuid, event));
+    }
+}
+
+/// Update the resources of all player.
+fn update_resources(
+    mut update_resources_event: EventReader<Receive<UpdateResources>>,
+    mut players: Query<&mut Player>,
+) {
+    for event in update_resources_event.read() {
+        let Some(mut player) = players.iter_mut().find(|player| player.uuid == event.0) else {
+            continue;
+        };
+
+        player.resources = event.1.0;
+    }
+}

crates/border-wars/src/scenes/menu.rs

@@ -6,6 +6,7 @@ use bevy_egui::{egui, EguiContexts};
 
 use crate::networking::connection::RequestJoin;
 use crate::networking::PlayerRank;
+use crate::resources::Resources;
 use crate::{CurrentScene, Player};
 
 /// The plugin for the menu.
@@ -59,6 +60,7 @@ fn menu_ui(
                         rank: PlayerRank::Player,
                         uuid,
                         color: rand::random::<(u8, u8, u8)>(),
+                        resources: Resources::initial(),
                     }),
                 ));
             }
@@ -73,6 +75,7 @@ fn menu_ui(
                 rank: PlayerRank::Admin,
                 uuid,
                 color: rand::random::<(u8, u8, u8)>(),
+                resources: Resources::initial(),
             });
         }
     });