load screen before loading an old save file

NOTE.md

@@ -3,7 +3,7 @@ A faire :
 
 1. Principal :
 - Sauvegarde
-- Historique / Replay
+- Historique
 - Documenter
 
 2. Visuel :
@@ -12,6 +12,7 @@ A faire :
 - Changer les images, rajouter les fonds, ...
 
 3. Hypothétique :
+- Vrai musique
 - Voir si les event listener intégré à pyglet sont plus pratiques que l'event propagation (?)
 - Faire une scène incluant par défaut les boutons "Retour" (?)
 

source/gui/scene/GameLoad.py

@@ -2,16 +2,18 @@ from typing import TYPE_CHECKING
 
 from source.gui import widget, texture
 from source.gui.scene.abc import Scene
-
+from source.network import Host
 
 if TYPE_CHECKING:
     from source.gui.window import Window
 
 
 class GameLoad(Scene):
-    def __init__(self, window: "Window", **kwargs):
+    def __init__(self, window: "Window", thread_host: Host, **kwargs):
         super().__init__(window, **kwargs)
 
+        self.thread_host = thread_host  # thread de l'hôte
+
         self.label = self.add_widget(
             widget.Text,
 
@@ -35,6 +37,8 @@ class GameLoad(Scene):
             style=texture.Button.Style1
         )
 
+        self.refuse.add_listener("on_click_release", lambda *_: self.response(value=False))
+
         self.accept = self.add_widget(
             widget.Button,
 
@@ -45,3 +49,11 @@ class GameLoad(Scene):
             style=texture.Button.Style1
         )
 
+        self.accept.add_listener("on_click_release", lambda *_: self.response(value=True))
+
+    def response(self, value: bool):
+        self.thread_host.accept_load = value
+        self.window.remove_scene(self)
+
+        with self.thread_host.condition_load:
+            self.thread_host.condition_load.notify_all()

source/gui/scene/GameWaitLoad.py

@@ -0,0 +1,26 @@
+from typing import TYPE_CHECKING
+
+from source.gui import widget, texture
+from source.gui.scene.abc import Scene
+from source.network import Host
+
+if TYPE_CHECKING:
+    from source.gui.window import Window
+
+
+class GameWaitLoad(Scene):
+    def __init__(self, window: "Window", **kwargs):
+        super().__init__(window, **kwargs)
+
+        self.label = self.add_widget(
+            widget.Text,
+
+            x=0.5, y=0.5, width=1.0,
+
+            anchor_x="center",
+
+            text="Une ancienne sauvegarde à été trouvé.\nL'hôte décide de son utilisation...",
+            align="center",
+            multiline=True,
+            font_size=28,
+        )

source/gui/scene/__init__.py

@@ -4,6 +4,7 @@ from .GameQuit import GameQuit
 from .GameError import GameError
 from .GameSave import GameSave
 from .GameLoad import GameLoad
+from .GameWaitLoad import GameWaitLoad
 from .Settings import Settings
 from .RoomHost import RoomHost
 from .RoomJoin import RoomJoin

source/network/Client.py

@@ -1,9 +1,11 @@
 import socket
-from typing import TYPE_CHECKING, Any
+from pathlib import Path
+from typing import TYPE_CHECKING, Any, Optional
 
+from source import path_save
 from source.gui import scene
 from source.network import game_network
-from source.network.packet import PacketUsername, PacketSettings
+from source.network.packet import PacketUsername, PacketSettings, PacketHaveSaveBeenFound, PacketLoadOldSave
 from source.utils import StoppableThread
 from source.utils.thread import in_pyglet_context
 
@@ -33,7 +35,46 @@ class Client(StoppableThread):
 
             print(f"[Client] Connecté avec {connection}")
 
+            # sauvegarde
+
+            # attend que l'hôte indique s'il a trouvé une ancienne sauvegarde
+            packet_save_found = PacketHaveSaveBeenFound.from_connection(connection)
+
+            if packet_save_found.value:
+                # si l'hôte a trouvé une ancienne sauvegarde, vérifier de notre côté également.
+
+                path_old_save: Optional[Path] = None
+                ip_address, _ = connection.getpeername()
+
+                for file in path_save.iterdir():
+                    if file.stem == ip_address:
+                        path_old_save = file
+                        break
+
+                # envoie à l'hôte si l'on possède également la sauvegarde
+                PacketHaveSaveBeenFound(value=path_old_save is not None).send_data_connection(connection)
+
+                if path_old_save:
+                    # si l'on possède la sauvegarde, attend que l'hôte confirme son utilisation
+
+                    from source.gui.scene import GameWaitLoad
+                    in_pyglet_context(self.window.set_scene, GameWaitLoad)
+
+                    while True:
+                        # attend la décision de l'hôte
+                        try:
+                            load_old_save = PacketLoadOldSave.from_connection(connection)
+                            break
+                        except socket.timeout:
+                            if self.stopped: return
+
+                    print("accept load", load_old_save)
+
+                    if load_old_save.value:
                         ...
+                        # TODO: Charger nos données
+
+            # paramètres & jeu
 
             settings: Any = PacketSettings.from_connection(connection)
             PacketUsername(username=self.username).send_data_connection(connection)

source/network/Host.py

@@ -1,12 +1,14 @@
 import socket
-from typing import TYPE_CHECKING
+from pathlib import Path
+from typing import TYPE_CHECKING, Optional
+from threading import Condition
 
 from source import path_save
 from source.gui import scene
 from source.network import game_network
 from source.utils import StoppableThread
 from source.utils.thread import in_pyglet_context
-from source.network.packet import PacketUsername
+from source.network.packet import PacketUsername, PacketLoadOldSave, PacketHaveSaveBeenFound
 
 if TYPE_CHECKING:
     from source.gui.window import Window
@@ -26,6 +28,9 @@ class Host(StoppableThread):
         self.settings = settings
         self.port = port
 
+        self.condition_load = Condition()
+        self.accept_load: Optional[bool] = None
+
     def run(self) -> None:
         print("[Serveur] Thread démarré")
 
@@ -45,9 +50,35 @@ class Host(StoppableThread):
 
             print(f"[Serveur] Connecté avec {ip_address}")
 
-            # check pour ancienne sauvegarde contre ce joueur
+            # ancienne sauvegarde
 
+            path_old_save: Optional[Path] = None
+
+            for file in path_save.iterdir():  # cherche une ancienne sauvegarde correspondant à l'ip de l'adversaire
+                if file.stem == ip_address:
+                    path_old_save = file
+                    break
+
+            # envoie à l'adversaire si une ancienne sauvegarde a été trouvée
+            PacketHaveSaveBeenFound(value=path_old_save is not None).send_data_connection(connection)
+
+            if path_old_save is not None:
+                # si une ancienne sauvegarde a été trouvée, attend que l'adversaire confirme avoir également la save
+                packet_save_found = PacketHaveSaveBeenFound.from_connection(connection)
+
+                # si l'adversaire à également la sauvegarde, demande à l'hôte de confirmer l'utilisation de la save
+                if packet_save_found.value:
+
+                    from source.gui.scene import GameLoad
+                    in_pyglet_context(self.window.set_scene, GameLoad, thread_host=self)
+
+                    with self.condition_load: self.condition_load.wait()  # attend que l'utilisateur choisisse l'option
+
+                    PacketLoadOldSave(value=self.accept_load).send_data_connection(connection)
+
+                    if self.accept_load:
                         ...
+                        # TODO: Charger nos données
 
             # paramètres & jeu
 

source/network/packet/PacketHaveSaveBeenFound.py

@@ -0,0 +1,24 @@
+import struct
+from dataclasses import field, dataclass
+
+from source.network.packet.abc import SimplePacket
+
+
+@dataclass
+class PacketHaveSaveBeenFound(SimplePacket):
+    """
+    A packet that is sent when the player accept or refuse a requested save.
+    """
+
+    value: bool = field()  # True si requête accepter, sinon False
+
+    packet_format = ">?"
+
+    def to_bytes(self) -> bytes:
+        return struct.pack(self.packet_format, self.value)
+
+    @classmethod
+    def from_bytes(cls, data: bytes) -> "PacketHaveSaveBeenFound":
+        value, *_ = struct.unpack(cls.packet_format, data)
+        return cls(value=value)
+

source/network/packet/PacketLoadOldSave.py

@@ -0,0 +1,24 @@
+import struct
+from dataclasses import field, dataclass
+
+from source.network.packet.abc import SimplePacket
+
+
+@dataclass
+class PacketLoadOldSave(SimplePacket):
+    """
+    A packet that is sent when the player accept or refuse a requested save.
+    """
+
+    value: bool = field()  # True si requête accepter, sinon False
+
+    packet_format = ">?"
+
+    def to_bytes(self) -> bytes:
+        return struct.pack(self.packet_format, self.value)
+
+    @classmethod
+    def from_bytes(cls, data: bytes) -> "PacketLoadOldSave":
+        value, *_ = struct.unpack(cls.packet_format, data)
+        return cls(value=value)
+

source/network/packet/__init__.py

@@ -7,3 +7,5 @@ from .PacketResponseSave import PacketResponseSave
 from .PacketSettings import PacketSettings
 from .PacketUsername import PacketUsername
 from .PacketQuit import PacketQuit
+from .PacketLoadOldSave import PacketLoadOldSave
+from .PacketHaveSaveBeenFound import PacketHaveSaveBeenFound