Implement respawning

godot/scenes/game_manager.tscn

@@ -3,4 +3,5 @@
 [ext_resource type="MapResource" uid="uid://c7n1tacc7a73t" path="res://maps/default_map.tres" id="1_glms7"]
 
 [node name="game_manager" type="GameManager" unique_id=1442044769]
+respawn_timer = 5.0
 maps = Array[MapResource]([ExtResource("1_glms7")])

godot/scenes/player/local_player.tscn

@@ -8,13 +8,14 @@ glow_enabled = true
 
 [sub_resource type="CapsuleShape3D" id="CapsuleShape3D_oh8vq"]
 
-[node name="player" type="LocalPlayer" unique_id=863055906 node_paths=PackedStringArray("camera", "soldier_mesh", "collider", "splorch")]
+[node name="player" type="LocalPlayer" unique_id=863055906 node_paths=PackedStringArray("camera", "soldier_mesh", "collider", "splorch", "dead_cam_target")]
 look_sensitivity = 1.5
 camera = NodePath("camera_3d")
 move_speed = 5.0
 soldier_mesh = NodePath("soldier_m")
 collider = NodePath("collision_shape_3d2")
 splorch = NodePath("splorch")
+dead_cam_target = NodePath("dead_camera_target")
 health = 100
 collision_mask = 4
 
@@ -33,3 +34,6 @@ shape = SubResource("CapsuleShape3D_oh8vq")
 
 [node name="splorch" parent="." unique_id=986677517 instance=ExtResource("2_ywmwa")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.16157162, 1.4223524, 0)
+
+[node name="dead_camera_target" type="Node3D" parent="." unique_id=559969559]
+transform = Transform3D(1, 0, 0, 0, 0.9069022, 0.4213412, 0, -0.4213412, 0.9069022, 0, 2.3258846, 1.5254744)

rust/src/game_manager.rs

@@ -9,7 +9,7 @@ use crate::{
     net::{
         network_manager::{
             NetworkManager,
-            Package::{self, Kill, SelfSync, TakeDamage},
+            Package::{self, Kill, SelfSync, SpawnPlayer, TakeDamage},
             PeerKind, SyncPackage,
         },
         util::NetVector3,
@@ -22,6 +22,9 @@ pub const GAME_MANAGER_GLOBAL: &str = "GameManagerGlobal";
 #[derive(GodotClass)]
 #[class(base=Node, init)]
 pub struct GameManager {
+    #[export]
+    pub respawn_timer: f64,
+
     pub game: Option<Gd<Game>>,
     base: Base<Node>,
 
@@ -51,6 +54,7 @@ impl GameManager {
         let mut game = Game::new_alloc();
         game.bind_mut().is_host = is_host;
         game.bind_mut().maps = self.maps.clone();
+        game.bind_mut().respawn_timer = self.respawn_timer;
 
         self.run_deferred(|s| {
             if let Some(game) = &s.game {
@@ -78,6 +82,9 @@ impl GameManager {
 #[derive(GodotClass)]
 #[class(base=Node, init)]
 pub struct Game {
+    #[export]
+    pub respawn_timer: f64,
+
     pub selected_map_idx: u8,
     pub selected_map: Option<Gd<MapResource>>,
     pub maps: Array<Gd<MapResource>>,
@@ -143,6 +150,25 @@ impl INode for Game {
                 }
             }
         }
+
+        if let Some(peer) = &mut NetworkManager::singleton().bind_mut().peer {
+            if let PeerKind::Server(peer, _) = peer {
+                for player in self.players.clone() {
+                    if let Some(character) = player.character {
+                        if character.dyn_bind().dead_for() > self.respawn_timer {
+                            let character = self.spawn_player_server(player.id);
+
+                            if let Some(character) = character {
+                                peer.broadcast_reliable(SpawnPlayer(
+                                    player.id,
+                                    character.dyn_bind().get_transform(),
+                                ));
+                            }
+                        }
+                    }
+                }
+            }
+        }
     }
 }
 
@@ -272,64 +298,72 @@ impl Game {
             } else {
                 self.run_deferred(|s| {
                     for player in s.players.clone() {
-                        let player_id = player.id;
-                        if let Some(mut map) = s.current_map.clone() {
-                            let mut character = map.bind_mut().spawn_player(
-                                &player,
-                                player.id == s.self_id.unwrap_or(0),
-                                None,
-                            );
-
-                            if let Some(character) = &mut character {
-                                if let Ok(mut local_player) =
-                                    character.clone().try_cast::<LocalPlayer>()
-                                {
-                                    local_player
-                                        .bind_mut()
-                                        .signals()
-                                        .on_die()
-                                        .connect_other(s, move |s| s.on_death(player_id));
-                                    local_player
-                                        .bind_mut()
-                                        .signals()
-                                        .on_take_damage()
-                                        .connect_other(s, move |s, damage| {
-                                            s.on_take_damage(player_id, damage)
-                                        });
-                                } else if let Ok(mut remote_player) =
-                                    character.clone().try_cast::<RemotePlayer>()
-                                {
-                                    remote_player
-                                        .bind_mut()
-                                        .signals()
-                                        .on_die()
-                                        .connect_other(s, move |s| s.on_death(player_id));
-                                    remote_player
-                                        .bind_mut()
-                                        .signals()
-                                        .on_take_damage()
-                                        .connect_other(s, move |s, damage| {
-                                            s.on_take_damage(player_id, damage)
-                                        });
-                                }
-                            }
-
-                            if let Some(player) = s.find_player_mut(player_id) {
-                                player.character = character;
-                            }
-                        }
+                        s.spawn_player_server(player.id);
                     }
                 });
             }
         }
     }
 
+    pub fn spawn_player_server(&mut self, id: u16) -> Option<DynGd<CharacterBody3D, dyn IPlayer>> {
+        if let Some(player) = self.find_player_mut(id)
+            && let Some(character) = &mut player.character
+        {
+            // This is a respawn, remove old character
+            character.queue_free();
+        }
+
+        if let Some(mut map) = self.current_map.clone() {
+            let mut character =
+                map.bind_mut()
+                    .spawn_player(id, id == self.self_id.unwrap_or(0), None);
+
+            if let Some(character) = &mut character {
+                if let Ok(mut local_player) = character.clone().try_cast::<LocalPlayer>() {
+                    local_player
+                        .bind_mut()
+                        .signals()
+                        .on_die()
+                        .connect_other(self, move |s| s.on_death(id));
+                    local_player
+                        .bind_mut()
+                        .signals()
+                        .on_take_damage()
+                        .connect_other(self, move |s, damage| s.on_take_damage(id, damage));
+                } else if let Ok(mut remote_player) = character.clone().try_cast::<RemotePlayer>() {
+                    remote_player
+                        .bind_mut()
+                        .signals()
+                        .on_die()
+                        .connect_other(self, move |s| s.on_death(id));
+                    remote_player
+                        .bind_mut()
+                        .signals()
+                        .on_take_damage()
+                        .connect_other(self, move |s, damage| s.on_take_damage(id, damage));
+                }
+            }
+
+            if let Some(player) = self.find_player_mut(id) {
+                player.character = character.clone();
+            }
+            character
+        } else {
+            None
+        }
+    }
+
     // Method called on the client-side whenever a player has spawned
     pub fn spawn_player_client(&mut self, id: u16, transform: NetPlayerTransform) {
         if let Some(map) = &mut self.current_map {
             if let Some(player) = self.players.iter_mut().find(|p| p.id == id) {
+                if let Some(character) = &mut player.character {
+                    // This is a respawn, delete old character
+                    character.queue_free();
+                }
+
                 let character = map.bind_mut().spawn_player(
-                    player,
+                    player.id,
                     player.id == self.self_id.unwrap_or(0),
                     Some(transform),
                 );
@@ -410,7 +444,6 @@ impl Game {
 
     // Handle dying, from server to client
     pub fn handle_kill(&mut self, player_id: u16) {
-        godot_print!("Got kill!");
         if let Some(player) = self.find_player_mut(player_id) {
             if let Some(character) = &mut player.character {
                 character.dyn_bind_mut().kill();

rust/src/map.rs

@@ -34,14 +34,14 @@ impl Map {
 
     pub fn spawn_player(
         &mut self,
-        player: &Player,
+        player_id: u16,
         is_local: bool,
         transform: Option<NetPlayerTransform>,
     ) -> Option<DynGd<CharacterBody3D, dyn IPlayer + 'static>> {
         if is_local {
             if let Some(local_player) = &self.local_player {
                 let mut node = local_player.instantiate_as::<LocalPlayer>();
-                node.bind_mut().player_id = Some(player.id);
+                node.bind_mut().player_id = Some(player_id);
                 self.base_mut().add_child(&node);
                 if let Some(transform) = transform {
                     node.bind_mut()
@@ -63,7 +63,7 @@ impl Map {
             }
         } else if let Some(remote_player) = &self.remote_player {
             let mut node = remote_player.instantiate_as::<RemotePlayer>();
-            node.bind_mut().player_id = Some(player.id);
+            node.bind_mut().player_id = Some(player_id);
             self.base_mut().add_child(&node);
             if let Some(transform) = transform {
                 node.bind_mut()

rust/src/player.rs

@@ -48,6 +48,7 @@ pub trait IPlayer {
     fn take_damage(&mut self, damage: i32, kill: bool);
     fn is_dead(&self) -> bool;
     fn kill(&mut self);
+    fn dead_for(&self) -> f64;
 }
 
 pub trait PlayerMovement {
@@ -94,6 +95,8 @@ pub struct LocalPlayer {
     #[export]
     splorch: Option<Gd<GpuParticles3D>>,
     #[export]
+    dead_cam_target: Option<Gd<Node3D>>,
+    #[export]
     health: i32,
 
     pub player_id: Option<u16>,
@@ -106,6 +109,7 @@ pub struct LocalPlayer {
     shoot_cd: f64,
 
     is_dead: bool,
+    dead_for: f64,
 
     locked: bool,
 
@@ -199,6 +203,10 @@ impl IPlayer for LocalPlayer {
         self.is_dead
     }
 
+    fn dead_for(&self) -> f64 {
+        self.dead_for
+    }
+
     fn kill(&mut self) {
         self.run_deferred(move |s| s.signals().on_die().emit());
         if let Some(mut mesh) = self.soldier_mesh.take() {
@@ -241,6 +249,10 @@ impl ICharacterBody3D for LocalPlayer {
     }
 
     fn process(&mut self, delta: f64) {
+        if self.is_dead {
+            self.dead_for += delta;
+        }
+
         self.shoot_cd -= delta;
 
         let input_direction = if self.locked {
@@ -264,6 +276,15 @@ impl ICharacterBody3D for LocalPlayer {
         }
 
         self.player_update(delta);
+
+        if self.is_dead
+            && let Some(target) = &self.dead_cam_target
+            && let Some(camera) = &mut self.camera
+        {
+            let camera_prev_pos = camera.get_global_position();
+            let new_pos = camera_prev_pos.lerp(target.get_global_position(), 0.1);
+            camera.set_global_position(new_pos);
+        }
     }
 
     fn input(&mut self, event: Gd<InputEvent>) {
@@ -370,6 +391,7 @@ pub struct RemotePlayer {
     look_up: f32,
 
     is_dead: bool,
+    dead_for: f64,
 
     shoot_cd: f64,
 
@@ -461,6 +483,10 @@ impl IPlayer for RemotePlayer {
         self.is_dead
     }
 
+    fn dead_for(&self) -> f64 {
+        self.dead_for
+    }
+
     fn kill(&mut self) {
         self.run_deferred(move |s| s.signals().on_die().emit());
         if let Some(mut mesh) = self.soldier_mesh.take() {
@@ -488,6 +514,10 @@ impl ICharacterBody3D for RemotePlayer {
     }
 
     fn process(&mut self, delta: f64) {
+        if self.is_dead {
+            self.dead_for += delta;
+        }
+
         self.player_update(delta);
 
         self.shoot_cd -= delta;