beta-1.4/persistence-implementation (#3)

Reviewed-on: #3

Persistence/Connectors/Scripts/chest_persistence_connector.gd

@@ -0,0 +1,21 @@
+extends Node
+
+@export var chests: Array[NodePath]
+
+# Private Methods
+func _ready() -> void:
+	for relative_node_path in chests:
+		var chest: BaseChest = get_node(relative_node_path)
+		var node_path := chest.get_path()
+		chest.ChestOpened.connect(func(): _on_chest_opened(chest))
+		
+		if PersistenceManager.HasData(node_path):
+			var chest_opened: bool = PersistenceManager.GetData(node_path)
+			if chest_opened:
+				chest.call_deferred("SetOpenedFromLoad")
+
+
+func _on_chest_opened(chest: BaseChest) -> void:
+	var node_path := chest.get_path()
+	PersistenceManager.UpdateData(node_path, true)
+	PersistenceManager.SaveToDisk()

Persistence/Connectors/Scripts/chest_persistence_connector.gd.uid

@@ -0,0 +1 @@
+uid://75g2fysjrqji

Persistence/Connectors/Scripts/gate_persistence_connector.gd

@@ -0,0 +1,40 @@
+extends Node
+
+@export var gates: Array[NodePath]
+
+# Private Methods
+func _ready() -> void:
+	for node_path in gates:
+		_handle_spike_gate(node_path)
+
+
+func _handle_spike_gate(node_path: NodePath) -> bool:
+	var node := get_node(node_path)
+	node_path = node.get_path()
+	if not node.name.begins_with("Spike Gate"):
+		return false
+	
+	# Connect Signal
+	node.connect("Opened", func(): _on_spike_gate_opened(node))
+	
+	if not PersistenceManager.HasData(node_path):
+		return true
+	
+	var is_open: bool = PersistenceManager.GetData(node_path)
+	if not is_open:
+		return true
+	
+	var collision_shape: CollisionShape2D = node.get_node("CollisionShape2D")
+	var animated_sprite: AnimatedSprite2D = node.get_node("AnimatedSprite2D")
+	
+	node.set_deferred("is_open", true)
+	collision_shape.set_deferred("disabled", true)
+	animated_sprite.call_deferred("play", "open")
+	
+	return true
+
+
+func _on_spike_gate_opened(node: Node) -> void:
+	var path := node.get_path()
+	PersistenceManager.UpdateData(path, true)
+	PersistenceManager.SaveToDisk()

Persistence/Connectors/Scripts/gate_persistence_connector.gd.uid

@@ -0,0 +1 @@
+uid://brsiegtrne15y

Persistence/Connectors/chest_persistence_connector.tscn

@@ -0,0 +1,6 @@
+[gd_scene format=3 uid="uid://w4mh31se58f4"]
+
+[ext_resource type="Script" uid="uid://75g2fysjrqji" path="res://Persistence/Connectors/Scripts/chest_persistence_connector.gd" id="1_hytou"]
+
+[node name="Chest Persistence Connector" type="Node" unique_id=281805027]
+script = ExtResource("1_hytou")

Persistence/Connectors/gate_persistence_connector.tscn

@@ -0,0 +1,6 @@
+[gd_scene format=3 uid="uid://c5ymu08jotbfp"]
+
+[ext_resource type="Script" uid="uid://brsiegtrne15y" path="res://Persistence/Connectors/Scripts/gate_persistence_connector.gd" id="1_0smsr"]
+
+[node name="GatePersistenceConnector" type="Node" unique_id=1082904286]
+script = ExtResource("1_0smsr")

Persistence/persistence_manager.gd

@@ -0,0 +1,51 @@
+extends Node
+
+var _save_dictionary: Dictionary[NodePath, Variant] = {}
+
+# Public Methods
+func UpdateData(node_path: NodePath, value: Variant) -> void:
+	_save_dictionary[node_path] = value
+
+
+func GetData(node_path: NodePath) -> Variant:
+	if not _save_dictionary.has(node_path):
+		return null
+	return _save_dictionary[node_path]
+
+
+func HasData(node_path: NodePath) -> bool:
+	return _save_dictionary.has(node_path)
+
+
+func SaveToDisk() -> void:
+	var save_file := FileAccess.open("user://savegame.save", FileAccess.WRITE)
+	var json := JSON.stringify(_save_dictionary)
+	
+	save_file.store_line(json)
+
+
+func LoadFromDisk() -> void:
+	if not FileAccess.file_exists("user://savegame.save"):
+		return
+	var save_file = FileAccess.open("user://savegame.save", FileAccess.READ)
+	print("Loading save file from path: %s" % save_file.get_path_absolute())
+	var line := save_file.get_line()
+	var json = JSON.new()
+	var parse_result := json.parse(line)
+	if parse_result != OK:
+		print("Parsing result when loading file: [%s] in %s at line %d" % [json.get_error_message(), line, json.get_error_line()])
+		return
+	
+	var data_dict: Dictionary = json.data
+	var node_dict: Dictionary[NodePath, Variant]
+	for key in data_dict:
+		var value: Variant = data_dict[key]
+		var node_path := NodePath(key)
+		node_dict[node_path] = value
+		
+	_save_dictionary = node_dict
+
+
+# Private Methods
+func _ready() -> void:
+	LoadFromDisk()

Persistence/persistence_manager.gd.uid

@@ -0,0 +1 @@
+uid://dl2kg1qu0ymi7