Add playing replays from file

.gitignore

@@ -11,4 +11,5 @@ godot/maps/entity_models
 rust/target
 target
 
-dist
+dist
+*.replay

godot/project.godot

@@ -23,6 +23,7 @@ GameManagerGlobal="*uid://bii6018k3ip3t"
 CliParserGlobal="*uid://c52o7xa0fnr53"
 GameSettingsGlobal="*uid://bjr15hjiojecw"
 AnnouncerGlobal="*uid://5gey4i80mmsa"
+StandaloneReplayGlobal="*uid://djmb2jqcpkuep"
 
 [display]
 

godot/scenes/main.tscn

@@ -4,7 +4,7 @@
 [ext_resource type="PackedScene" uid="uid://dsxu0y8pjbw3k" path="res://scenes/ui/credits.tscn" id="1_sugp2"]
 [ext_resource type="PackedScene" uid="uid://n3u0jr4wiib1" path="res://scenes/ui/settings.tscn" id="2_0wfyh"]
 
-[node name="menu" type="MainMenu" unique_id=2036763876 node_paths=PackedStringArray("camera", "main_position", "host_position", "main_panel", "host_panel", "join_panel", "host_port", "join_addr", "recent_servers_button", "popup_panel", "popup_title", "popup_text", "popup_button")]
+[node name="menu" type="MainMenu" unique_id=2036763876 node_paths=PackedStringArray("camera", "main_position", "host_position", "main_panel", "host_panel", "join_panel", "host_port", "join_addr", "recent_servers_button", "popup_panel", "popup_title", "popup_text", "popup_button", "open_replay_dialog")]
 camera = NodePath("camera_3d")
 main_position = NodePath("main_pos")
 host_position = NodePath("host_pos")
@@ -19,6 +19,7 @@ popup_title = NodePath("popup_panel/v_box_container/title")
 popup_text = NodePath("popup_panel/v_box_container/text")
 popup_button = NodePath("popup_panel/v_box_container/ok")
 credits = ExtResource("1_sugp2")
+open_replay_dialog = NodePath("open_replay_dialog")
 
 [node name="camera_3d" type="Camera3D" parent="." unique_id=1513321931]
 transform = Transform3D(0.98629165, -0.031186381, 0.16203775, -1.4054481e-08, 0.981978, 0.1889952, -0.16501158, -0.18640438, 0.9685167, 1.0974052, 1.7166122, 1.4909106)
@@ -74,6 +75,11 @@ layout_mode = 2
 text = "Join Game"
 metadata/_edit_lock_ = true
 
+[node name="play_replay" type="Button" parent="main_panel/v_box_container" unique_id=275552647]
+layout_mode = 2
+text = "Play Replay"
+metadata/_edit_lock_ = true
+
 [node name="credits" type="Button" parent="main_panel/v_box_container" unique_id=953921422]
 layout_mode = 2
 text = "Credits"
@@ -245,8 +251,14 @@ autowrap_mode = 3
 layout_mode = 2
 text = "Ok"
 
+[node name="open_replay_dialog" type="FileDialog" parent="." unique_id=925465558]
+title = "Open a File"
+file_mode = 0
+filters = PackedStringArray("*.replay")
+
 [connection signal="pressed" from="main_panel/v_box_container/host" to="." method="go_to_host_game"]
 [connection signal="pressed" from="main_panel/v_box_container/join" to="." method="go_to_join_game"]
+[connection signal="pressed" from="main_panel/v_box_container/play_replay" to="." method="open_replay_dialog"]
 [connection signal="pressed" from="main_panel/v_box_container/credits" to="." method="open_credits"]
 [connection signal="pressed" from="main_panel/v_box_container/settings" to="settings" method="open"]
 [connection signal="pressed" from="main_panel/v_box_container/quit" to="." method="quit_game"]

godot/scenes/misc/standalone_replay_global.tscn

@@ -0,0 +1,3 @@
+[gd_scene format=3 uid="uid://djmb2jqcpkuep"]
+
+[node name="standalone_replay_global" type="StandaloneReplayManager" unique_id=730657724]

rust/src/map.rs

@@ -6,7 +6,7 @@ use crate::{
     player::{
         IPlayer, NetTransform, ball::Ball, local_player::LocalPlayer, remote_player::RemotePlayer,
     },
-    replay::{ReplayPlayer, ReplayPlayerState},
+    replay::{ReplayPlayer, ReplayPlayerState, StandaloneReplayManager},
 };
 
 #[derive(GodotClass)]
@@ -25,6 +25,10 @@ impl INode3D for Map {
     fn ready(&mut self) {
         if let Some(game) = &mut Game::singleton() {
             game.bind_mut().on_map_loaded(self.to_gd());
+        } else {
+            StandaloneReplayManager::singleton()
+                .bind_mut()
+                .on_map_loaded(self.to_gd());
         }
     }
 }

rust/src/replay.rs

@@ -3,11 +3,12 @@ use std::{collections::HashMap, io::Cursor};
 use godot::{
     classes::{FileAccess, file_access::ModeFlags},
     prelude::*,
+    tools::get_autoload_by_name,
 };
 use serde::{Deserialize, Serialize};
 
 use crate::{
-    game_manager::{Game, Player},
+    game_manager::{Game, GameManager, Player},
     map::Map,
     net::{network_manager::BallSync, util::NetVector3},
     player::{
@@ -16,6 +17,64 @@ use crate::{
     },
 };
 
+pub const STANDALONE_REPLAY_GLOBAL: &str = "StandaloneReplayGlobal";
+
+#[derive(GodotClass)]
+#[class(base=Node, init)]
+pub struct StandaloneReplayManager {
+    loading_replay: bool,
+    map: Option<Gd<Map>>,
+    playback: Option<Gd<ReplayPlayback>>,
+    replay: Option<Replay>,
+
+    base: Base<Node>,
+}
+
+impl StandaloneReplayManager {
+    pub fn singleton() -> Gd<StandaloneReplayManager> {
+        get_autoload_by_name::<StandaloneReplayManager>(STANDALONE_REPLAY_GLOBAL)
+    }
+
+    pub fn open_replay(&mut self, path: &GString) {
+        if let Some(mut file) = FileAccess::open(path, ModeFlags::READ) {
+            let mut bytes = Vec::new();
+            while !file.eof_reached() {
+                bytes.push(file.get_8());
+            }
+
+            let bytes = Cursor::new(&mut bytes);
+            if let Ok(res) = ciborium::from_reader::<Replay, _>(bytes) {
+                self.loading_replay = true;
+                let map_idx = res.map_idx;
+                self.replay = Some(res);
+                if let Some(map) = GameManager::singleton().bind().maps.get(map_idx as usize) {
+                    if let Some(scene) = &map.bind().scene {
+                        self.base().get_tree().change_scene_to_packed(scene);
+                    }
+                }
+            }
+        }
+    }
+
+    pub fn on_map_loaded(&mut self, map: Gd<Map>) {
+        if self.loading_replay {
+            self.loading_replay = false;
+            self.map = Some(map.clone());
+
+            if let Some(replay) = self.replay.take() {
+                let mut playback = ReplayPlayback::new_alloc();
+                playback.bind_mut().replay = replay;
+                playback.bind_mut().current_map = Some(map);
+                playback.bind_mut().current_time = 0.;
+                playback.bind_mut().fast_forwarding = false;
+                playback.bind_mut().spectated_player_id = 0;
+                self.playback = Some(playback.clone());
+                self.base_mut().add_child(&playback);
+            }
+        }
+    }
+}
+
 #[derive(GodotClass)]
 #[class(base=Node, init)]
 pub struct ReplayPlayback {
@@ -292,7 +351,7 @@ impl ReplayRecorder {
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Replay {
-    map_idx: u8,
+    pub map_idx: u8,
     players: HashMap<u16, ReplayPlayer>,
     frames: Vec<ReplayFrame>,
 }

rust/src/ui/main_menu.rs

@@ -1,13 +1,20 @@
+use std::io::Cursor;
+
 use godot::{
-    classes::{Button, Camera3D, Label, LineEdit, OptionButton, Panel, SpinBox},
+    classes::{
+        Button, Camera3D, FileAccess, FileDialog, Label, LineEdit, OptionButton, Panel, SpinBox,
+        file_access::ModeFlags,
+    },
     prelude::*,
     register::property::SimpleVar,
 };
 
 use crate::{
+    game_manager::GameManager,
     game_settings::{GameSettingsManager, RecentServer},
     net::network_manager::NetworkManager,
     popup_queue::{Popup, PopupQueue},
+    replay::{Replay, StandaloneReplayManager},
     ui::credits::CreditsMenu,
 };
 
@@ -61,6 +68,9 @@ pub struct MainMenu {
     #[export]
     credits: Option<Gd<PackedScene>>,
 
+    #[export]
+    open_replay_dialog: Option<Gd<FileDialog>>,
+
     prev_panel: Option<Gd<Panel>>,
 
     recent_servers: Vec<RecentServer>,
@@ -87,6 +97,12 @@ impl INode3D for MainMenu {
                 .item_selected()
                 .connect_other(self, |s, idx| s.on_recent_server_selected(idx));
         }
+        if let Some(dialog) = &self.open_replay_dialog {
+            dialog
+                .signals()
+                .file_selected()
+                .connect_other(self, Self::on_open_replay);
+        }
         self.hide_popup();
     }
 
@@ -162,6 +178,19 @@ impl INode3D for MainMenu {
 
 #[godot_api]
 impl MainMenu {
+    #[func]
+    pub fn open_replay_dialog(&mut self) {
+        if let Some(dialog) = &mut self.open_replay_dialog {
+            dialog.popup_file_dialog();
+        }
+    }
+
+    pub fn on_open_replay(&mut self, path: GString) {
+        StandaloneReplayManager::singleton()
+            .bind_mut()
+            .open_replay(&path);
+    }
+
     #[func]
     pub fn host_game(&mut self) {
         if let Some(host_port) = &self.host_port {