Add some preliminary chat messages

rust/src/chat.rs

@@ -0,0 +1,93 @@
+use godot::{classes::RichTextLabel, prelude::*};
+
+use crate::{
+    announcer::Announcement,
+    game_manager::{Game, Player},
+    player::DamageSource,
+};
+
+#[derive(GodotClass)]
+#[class(base=Node, init)]
+pub struct Chat {
+    messages: Vec<ChatMessage>,
+    base: Base<Node>,
+}
+
+#[godot_api]
+impl Chat {
+    #[signal]
+    pub fn on_new_message(idx: Gd<RichTextLabel>);
+
+    pub fn singleton() -> Option<Gd<Chat>> {
+        Game::singleton().and_then(|g| g.get_child(0).map(|c| c.cast()))
+    }
+
+    pub fn get_messages(&self) -> Vec<Gd<RichTextLabel>> {
+        self.messages.iter().map(|m| m.as_label()).collect()
+    }
+
+    pub fn new_message(&mut self, message: ChatMessage) {
+        self.messages.len() as i64;
+        self.messages.push(message.clone());
+        self.signals().on_new_message().emit(&message.as_label());
+    }
+}
+
+#[derive(Debug, Clone)]
+pub enum ChatMessage {
+    Death(DamageSource, u16),
+    Announcement(u16, Announcement),
+}
+
+impl ChatMessage {
+    pub fn as_label(&self) -> Gd<RichTextLabel> {
+        let mut label = RichTextLabel::new_alloc();
+        match self {
+            ChatMessage::Death(source, player_id) => {
+                if let Some(game) = Game::singleton()
+                    && let Some(player) = game.bind().find_player(*player_id)
+                {
+                    match source {
+                        DamageSource::Player(source_id) => {
+                            if let Some(source) = game.bind().find_player(*source_id) {
+                                add_player(&mut label, source);
+                                label.append_text(" fragged ");
+                                add_player(&mut label, &player);
+                            }
+                        }
+                        DamageSource::Killbox => {
+                            add_player(&mut label, &player);
+                            label.append_text(" fell into the void");
+                        }
+                    }
+                }
+            }
+            ChatMessage::Announcement(player_id, announcement) => {
+                if let Some(game) = Game::singleton()
+                    && let Some(player) = game.bind().find_player(*player_id)
+                {
+                    add_player(&mut label, &player);
+                    label.append_text(" got ");
+                    let what = match announcement {
+                        Announcement::FirstBlood => "First Blood",
+                        Announcement::DoubleKill => "a Double Kill",
+                        Announcement::TripleKill => "a Triple Kill",
+                        Announcement::MegaKill => "a Mega Kill",
+                    };
+                    label.append_text(&format!("[color=red]{}[/color]", what));
+                }
+            }
+        }
+        label
+    }
+}
+
+fn add_player(label: &mut Gd<RichTextLabel>, player: &Player) {
+    if let Some(game) = Game::singleton()
+        && let Some(team) = game.bind().get_team(player.data.team)
+    {
+        label.append_text(&format!("[color={}]", team.bind().color));
+        label.add_text(&player.data.name);
+        label.append_text(&format!("[/color]"));
+    }
+}

rust/src/game_manager.rs

@@ -9,6 +9,7 @@ use crate::{
         Announcer,
     },
     ball::Ball,
+    chat::{Chat, ChatMessage},
     map::Map,
     map_resource::MapResource,
     net::{
@@ -216,6 +217,11 @@ pub struct Game {
 
 #[godot_api]
 impl INode for Game {
+    fn ready(&mut self) {
+        let chat = Chat::new_alloc();
+        self.base_mut().add_child(&chat);
+    }
+
     fn physics_process(&mut self, delta: f64) {
         self.since_last_sync += delta;
         if self.since_last_sync > (1. / 60.) {
@@ -854,6 +860,11 @@ impl Game {
     pub fn on_kill(&mut self, source: DamageSource, player_id: u16) {
         let total_prev_kills: u16 = self.players.iter().map(|p| p.data.kills).sum();
 
+        if let Some(chat) = &mut Chat::singleton() {
+            chat.bind_mut()
+                .new_message(ChatMessage::Death(source, player_id));
+        }
+
         let killing_spree = if let DamageSource::Player(source_id) = source
             && let Some(source_player) = self.find_player_mut(source_id)
         {
@@ -875,8 +886,10 @@ impl Game {
                 && let PeerKind::Server(peer, _) = peer
             {
                 if total_prev_kills == 0 {
-                    s.on_announcement(Announcement::FirstBlood);
-                    peer.broadcast_reliable(Package::Announcement(FirstBlood));
+                    if let DamageSource::Player(source_id) = source {
+                        s.on_announcement(source_id, Announcement::FirstBlood);
+                        peer.broadcast_reliable(Package::Announcement(source_id, FirstBlood));
+                    }
                 }
                 let announcement = match killing_spree {
                     2 => Some(Announcement::DoubleKill),
@@ -885,14 +898,20 @@ impl Game {
                     _ => None,
                 };
                 if let Some(announcement) = announcement {
-                    s.on_announcement(announcement);
-                    peer.broadcast_reliable(Package::Announcement(announcement));
+                    if let DamageSource::Player(source_id) = source {
+                        s.on_announcement(source_id, announcement);
+                        peer.broadcast_reliable(Package::Announcement(source_id, announcement));
+                    }
                 }
             }
         });
     }
 
-    pub fn on_announcement(&mut self, announcement: Announcement) {
+    pub fn on_announcement(&mut self, player_id: u16, announcement: Announcement) {
+        if let Some(chat) = &mut Chat::singleton() {
+            chat.bind_mut()
+                .new_message(ChatMessage::Announcement(player_id, announcement));
+        }
         Announcer::singleton().bind_mut().announce(announcement);
     }
 

rust/src/lib.rs

@@ -2,6 +2,7 @@ use godot::prelude::*;
 
 pub mod announcer;
 pub mod ball;
+pub mod chat;
 pub mod cli_parser;
 pub mod game_manager;
 pub mod game_settings;

rust/src/net/network_manager.rs

@@ -311,7 +311,7 @@ pub enum Package {
     DespawnBall,
     SwapWeapon(u16, WeaponType),
     Goal(Vec<u8>),
-    Announcement(Announcement),
+    Announcement(u16, Announcement),
 
     // End-of-Game packages
     FinishGame,

rust/src/net/protocol.rs

@@ -200,9 +200,9 @@ impl NetworkManager {
                                 game.bind_mut().finish_game();
                             }
                         }
-                        Package::Announcement(announcement) => {
+                        Package::Announcement(source_id, announcement) => {
                             if let Some(game) = &mut Game::singleton() {
-                                game.bind_mut().on_announcement(announcement);
+                                game.bind_mut().on_announcement(source_id, announcement);
                             }
                         }
                         _ => {}

rust/src/player/mod.rs

@@ -897,7 +897,7 @@ impl RemotePlayer {
     pub fn on_take_damage(source: DamageSourceSignal, source_player: u16, damage: i32);
 }
 
-#[derive(Clone, Debug, Serialize, Deserialize)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
 pub enum DamageSource {
     Player(u16),
     Killbox,