Timer

function seconds_to_gamespeed(_seconds) {
	return game_get_speed(gamespeed_fps) * _seconds;
}

/**
 * new Timer(_bind, _callback)
 * @param _bind scope of the callback, usually the 
 * @param _callback function to be executed
 *
 * Methods
 * stop: cancel timer
 * step: MUST be added to step event
 * trigger: trigger callback instantly
 * set: receive _seconds as argument, and trigger callback after x seconds
 */
function Timer(_bind, _callback) constructor {
	callback = _callback;
	bind = _bind;
	time = -1;
	active = false;

	static step = function () {
		if (active) {
			time--;

			if (time <= 0) {
				stop();
				trigger();
			}
		}
	}

	static stop = function () {
		time = -1;
		active = false;
	}

	static set = function (_seconds) {
		time = seconds_to_gamespeed(_seconds);
		active = true;
	}

	static trigger = function () {
		if (is_method(callback)) {
			method(bind, callback)();
		}
	}
}