Save and load system

globals/GameManager.gd

@@ -1,18 +1 @@
 extends Node
-
-const XP_PER_SECOND: int = 5
-
-const TREES = {
-	0: {
-		"id": "Tree1",
-		"name": "Tree 1"
-	},
-	1: {
-		"id": "Tree2",
-		"name": "Tree 2"
-	},
-	2: {
-		"id": "Tree3",
-		"name": "Tree 3"
-	},
-}

globals/GameStorage.gd

@@ -0,0 +1,39 @@
+extends Node
+
+const SAVE_PATH = "user://savegame.json"
+
+func _ready() -> void:
+	load_progress()
+	save_progress()
+
+func save_progress():
+	var data = {
+		"player": PlayerLS.get_data(),
+		"trees": TreeLS.trees,
+		"selectedTree": TreeLS.selected
+	}
+
+	var file = FileAccess.open(SAVE_PATH, FileAccess.WRITE)
+	var jsonData = JSON.stringify(data)
+
+	file.store_line(jsonData)
+
+func load_progress():
+	if not FileAccess.file_exists(SAVE_PATH):
+		print("Save file not exists")
+		return
+
+	var file = FileAccess.open(SAVE_PATH, FileAccess.READ)
+	var file_content = file.get_as_text()
+	var json = JSON.new()
+
+	json.parse(file_content)
+
+	var data = json.data
+
+	TreeLS.trees = data.trees
+	TreeLS.selected = data.selectedTree
+	PlayerLS.xp = data.player.xp
+	PlayerLS.level = data.player.level
+	PlayerLS.xpNextLevel = data.player.xpNextLevel
+

globals/LevelSystem/Player.gd

@@ -6,6 +6,14 @@ var xp = 0 # Current XP
 var level = 1 # Current Level
 var xpNextLevel = 100 # XP to the next level
 
+func get_data() -> Dictionary:
+	var data = {
+		"xp": xp,
+		"level": level,
+		"xpNextLevel": xpNextLevel
+	}
+	return data
+
 func add_xp() -> void:
 	xp += XP_PER_SECOND
 	_check_level_up()

globals/LevelSystem/Tree.gd

@@ -3,17 +3,24 @@ extends Node
 const XP_PER_SECOND: int = 5
 
 var trees = {
-	"Tree1": {"xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
-	"Tree2": {"xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
-	"Tree3": {"xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
+	"Tree1": {"id": 0, "name": "Tree 1", "xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
+	"Tree2": {"id": 1, "name": "Tree 2", "xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
+	"Tree3": {"id": 2, "name": "Tree 3", "xp": 0, "level": 1, "xpNextLevel": 100, "maxLevel": 10},
 }
-var select = "Tree1"
+var selected = "Tree1"
 
 func get_select_tree():
-	return trees[select]
+	return trees[selected]
+
+func find_tree_by_id(target_id: int) -> Dictionary:
+	for key in trees.keys():
+		var tree = trees[key]
+		if tree.id == target_id:
+			return {"key": key, "tree": tree}
+	return {}
 
 func set_selected_tree(name: String) -> void:
-	select = name
+	selected = name
 
 func add_xp() -> void:
 	var tree = get_select_tree()
@@ -32,4 +39,4 @@ func _check_level_up() -> void:
 
 func _on_level_up() -> void:
 	var tree = get_select_tree()
-	print(select, " subiu de nível! Novo nível: ", tree["level"])
+	print(selected, " subiu de nível! Novo nível: ", tree["level"])

project.godot

@@ -17,6 +17,7 @@ config/icon="res://icon.svg"
 
 [autoload]
 
+GameStorage="*res://globals/GameStorage.gd"
 GameManager="*res://globals/GameManager.gd"
 Utils="*res://globals/Utils.gd"
 PlayerLS="*res://globals/LevelSystem/Player.gd"

scenes/game/game.gd

@@ -13,23 +13,28 @@ func _on_xp_timer_timeout() -> void:
 	PlayerLS.add_xp()
 	TreeLS.add_xp()
 	_update_ui()
+	GameStorage.save_progress()
 
 func _update_ui() -> void:
 	var tree = TreeLS.get_select_tree()
 	player_level_status.update_ui(PlayerLS.level, PlayerLS.xp, PlayerLS.xpNextLevel)
 	tree_level_status.update_ui(tree["level"], tree["xp"], tree["xpNextLevel"])
 
 func _populate_option_button():
-	var TREES = GameManager.TREES
+	var TREES = TreeLS.trees
+	var selected = TreeLS.selected
 
 	for key in TREES.keys():
-		var tree_data = TREES[key]
-		tree_selector.add_item(tree_data["name"], key)
+		var tree = TREES[key]
+		tree_selector.add_item(tree.name, tree.id)
+
+	tree_selector.selected = TREES[selected].id
 
 func _on_option_button_item_selected(index: int) -> void:
-	var TREES = GameManager.TREES
-	var seletec = TREES[index]
+	var seletec = TreeLS.find_tree_by_id(index)
+
+	TreeLS.set_selected_tree(seletec.key)
+	tree_name.text = seletec.tree.name
 
-	TreeLS.set_selected_tree(seletec["id"])
-	tree_name.text = seletec["name"]
 	_update_ui()
+	GameStorage.save_progress()