GDScript Save-Game Example

player.gd

extends CharacterBody2D
class_name Player

# […]


func compute_save_state() -> Dictionary:
  var save_state: Dictionary = {};
  
  save_state["equipped_gun"] = self.equipped_gun;
  save_state["inventory"] = self.inventory;
  
  return {"key": "player", "value": save_state}

save-game.gd

extends Node
class_name SaveGame


func compute_save_state() -> Dictionary:
  var persistable_nodes: Array = get_tree().get_nodes_in_group("persistable");
  var save_state: Dictionary = {};

  for node in persistable_nodes:
    if not node.has_method("compute_save_state"):
      continue;
    
    var state_to_save: Dictionary = node.compute_save_state();
    save_state[save_to_state.key] = save_to_state.value;

  save_game_state(save_state);