Add signals on save/loads events

game/core/game_data.gd

@@ -5,6 +5,12 @@ signal selected_pokemon_changed
 signal battle_requested(sent : SentPokemon, target : Node) #emis par ThrowState : BattleLauncher s'y branche
 signal battle_finished(outcome : int, target : Node) #emis par BattleLauncher (outcome = valeur de Battle.Outcome)
 
+signal save_started
+signal save_finished(success : bool)
+
+signal load_started
+signal load_finished(success : bool)
+
 var story_progress : int = 0 # 0 = début, 1 = après 1er badge, 2 = après 2e badge, etc.
 var player_team : PokemonTeam = PokemonTeam.new()
 var player_storage : PokemonStorage = PokemonStorage.new()
@@ -50,17 +56,34 @@ func _set_selected(index : int) -> void:
 	selected_pokemon_changed.emit()
 
 func save() -> void:
+	save_started.emit()
 	var config := ConfigFile.new()
 	config.set_value("progress", "story_progress", story_progress)
 	config.set_value("team", "data", player_team.to_dict())
 	config.set_value("storage", "data", player_storage.to_dict())
-	config.save("user://save.cfg")
+	
+	var err := config.save("user://save.cfg")
+	save_finished.emit(err == OK)
+
+func has_save() -> bool:
+	return FileAccess.file_exists("user://save.cfg")
 	
 func load_data() -> void:
+	if not has_save():
+		load_finished.emit(false)
+		return
+	
+	load_started.emit()
+	
 	var config := ConfigFile.new()
-	if config.load("user://save.cfg") == OK:
+	var err : Error = config.load("user://save.cfg")
+	var success := err == OK
+	
+	if success:
 		story_progress = config.get_value("progress", "story_progress", 0)
 		var team_data : Variant = config.get_value("team", "data", {})
 		player_team = PokemonTeam.from_dict(team_data) if team_data is Dictionary else PokemonTeam.new()
 		var storage_data : Variant = config.get_value("storage", "data", {})
 		player_storage = PokemonStorage.from_dict(storage_data) if storage_data is Dictionary else PokemonStorage.new()
+	
+	load_finished.emit(success)