way too many changes to list, oops. big rewrite.

Scripts/Resources/save_data.gd

@@ -0,0 +1,86 @@
+class_name SaveData extends RefCounted
+
+const SAVE_PATH: String = "user://save1.txt"
+
+#Game History
+var twenty_game_history: Array[bool] = []
+var wins: int = 0
+var losses: int = 0
+
+#Engineer
+var engineer_cards_bought: int = 0
+
+
+#Unlocking the mage
+var mage_card_seen_in_shop: bool = false
+var mage_cards_bought: int = 0
+var mage_unlocked: bool = 0
+
+
+func add_game_outcome(outcome: bool) -> void:
+	if outcome:
+		wins += 1
+	else:
+		losses += 1
+	twenty_game_history.push_back(outcome)
+	if twenty_game_history.size() > 20:
+		twenty_game_history.pop_front()
+
+
+func unlock_all_content() -> void:
+	mage_unlocked = true
+
+
+func lock_all_content() -> void:
+	mage_unlocked = false
+
+
+func bought_engineer_card() -> void:
+	engineer_cards_bought += 1
+
+
+func saw_mage_card_in_shop() -> void:
+	mage_card_seen_in_shop = true
+	save_to_disc()
+
+
+func bought_mage_card() -> void:
+	mage_cards_bought += 1
+	if mage_cards_bought >= 10:
+		mage_unlocked = true
+		save_to_disc()
+
+
+func save_to_disc() -> void:
+	var save_file: FileAccess = FileAccess.open(SAVE_PATH, FileAccess.WRITE)
+	var dict: Dictionary = {
+		"wins" = wins,
+		"losses" = losses,
+		"twenty_game_history" = twenty_game_history,
+		"engineer_cards_bought" = engineer_cards_bought,
+		"mage_card_seen_in_shop" = mage_card_seen_in_shop,
+		"mage_cards_bought" = mage_cards_bought,
+		"mage_unlocked" = mage_unlocked,
+	}
+	var json_string: String = JSON.stringify(dict)
+	save_file.store_line(json_string)
+
+
+static func load_profile_from_disk() -> SaveData:
+	if FileAccess.file_exists(SAVE_PATH):
+		var save_file: FileAccess = FileAccess.open(SAVE_PATH, FileAccess.READ)
+		var json_string: String = save_file.get_line()
+		var json: JSON = JSON.new()
+		var parse_result: Error = json.parse(json_string)
+		if parse_result == OK:
+			var dict: Dictionary = json.data
+			var stats: SaveData = SaveData.new()
+			stats.wins = dict["wins"]
+			stats.losses = dict["losses"]
+			stats.twenty_game_history.append_array(dict["twenty_game_history"])
+			stats.engineer_cards_bought = dict["engineer_cards_bought"]
+			stats.mage_card_seen_in_shop = dict["mage_card_seen_in_shop"]
+			stats.mage_cards_bought = dict["mage_cards_bought"]
+			stats.mage_unlocked = dict["mage_unlocked"]
+			return stats
+	return SaveData.new()