class_name EventSystem extends Node

const EVENT_FLAG_COUNT = 32

enum SpecialEvent {
	INVALID = 0,
	TEST_QUEST = 1,
};

var eventFlags:Dictionary[int, int] = {}
signal eventFlagUpdated(event:SpecialEvent, flags:int)

func eventFlagOn(event:SpecialEvent, flagsToTurnOn:int) -> void:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	
	eventFlags[event] |= flagsToTurnOn;
	eventFlagUpdated.emit(event, eventFlags[event]);

func eventFlagOff(event:SpecialEvent, flagsToTurnOff:int) -> void:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	eventFlags[event] &= ~flagsToTurnOff;
	eventFlagUpdated.emit(event, eventFlags[event]);

func eventFlagSetTo(event:SpecialEvent, flagsToSet:int) -> void:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	eventFlags[event] = flagsToSet;
	eventFlagUpdated.emit(event, eventFlags[event]);

func eventAreFlagsOn(event:SpecialEvent, flagsToCheck:int) -> bool:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	return (eventFlags[event] & flagsToCheck) == flagsToCheck;

func eventIsAnyOfFlagsOn(event:SpecialEvent, flagsToCheck:int) -> bool:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	return (eventFlags[event] & flagsToCheck) != 0;

func eventAreFlagsOff(event:SpecialEvent, flagsToCheck:int) -> bool:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	return (eventFlags[event] & flagsToCheck) == 0;

func eventIsAnyOfFlagsOff(event:SpecialEvent, flagsToCheck:int) -> bool:
	if !eventFlags.has(event):
		eventFlags[event] = 0;
	return (eventFlags[event] & flagsToCheck) != flagsToCheck;