Hi @LyssaSugarNya , do you have a specific example in mind? You can create a map where the player is the key and you specify what value you want associated with the player.
For example:
player_info := class:
# Data to associate with player goes here
var MyData:float = 0.0
my_device := class(creative_device):
# Map between player type and player_info class created above.
var PlayerInfoMap:[player]player_info = map{}
You can learn more about map at Map