Saving arrays in a Dictionary

Help
1

Godot Version

4.3

Question

I’m setting up a save system for my game which worked fine (Based on Godotneers tutorial on youtube)
I initially had a basic array for my “upgrades” which held all relevant info that required saving, however as the number of upgrades grew, I wanted to categorize them and separate them for easier management during development.

To do this I set up a Dictionary of arrays for each category of upgrades.

What I’m struggling with is saving this dictionary for loading later on.

I currently do this :

func on_save_game(saved_data_upgrades:Dictionary):

for group_name in upgrades_dict.keys():
	saved_data_upgrades[group_name] = []
	var upgrades_in_group = upgrades_dict[group_name]
    print("Check1")
	for upgrade in upgrades_in_group:
		var upgrade_data = UpgradeData.new()
		upgrade_data.title = upgrade.title
		print("Check2")
		upgrade_data.unlocked = upgrade.unlocked
		upgrade_data.bought = upgrade.bought
		saved_data_upgrades[group_name].append(upgrade_data)

Using this code I do reach the check1, but never the check2, most of my arrays are sill empty as I haven’t sorted the upgrades yet, but the arrays that shouldn’t be empty appear blank on my save file (.tres file). The dictionnary keys however do appear

What am I doing wrong ? And if there are better ways to do this I’m all ears!

EDIT: bad coding on my part in my loading logic, fixed

2

remember that when you pass around the array and dictionary value, the array and dictionary value is passed by reference, which mean if you somehow edited the passed value or remove the value else where, the main array or dictionary will also get edited/removed.
to make sure the dictionary/array values you passed not the reference. you will need to first .duplicate(true) the array to a new variable