Expansion Countdown to Zero

"use strict";
this.name               = "countdown_to_zero";
this.author               = "spara";
this.copyright            = "2015 Spara";
this.description         = "Make hypercount go to 0";
this.licence     = "CC BY-NC-SA 4.0";

this.shipLaunchedFromStation = function() {
	missionVariables["countdown_to_zero"] = player.ship.hyperspaceSpinTime - 1;
}

this.shipDockedWithStation = function() {
	delete missionVariables["countdown_to_zero"];
}

//start countdown
this.playerStartedJumpCountdown = function(type, seconds) {
	if (type === "standard") {
		missionVariables["countdown_to_zero"] = seconds;
		this.$hyperTimer = new Timer(this,this._hyperDriveCountdown,0,1);
	}
	else if (type === "galactic") {
		missionVariables["countdown_to_zero"] = seconds - 1;
		this.$hyperTimer = new Timer(this,this._hyperDriveCountdown,1,1);
	}
}

//stop countdown
this.playerCancelledJumpCountdown = this.shipWillEnterWitchspace = this.playerJumpFailed = function() {
	if (this.$hyperTimer) {
		this.$hyperTimer.stop();
		delete this.$hyperTimer;
	}
	missionVariables["countdown_to_zero"] = player.ship.hyperspaceSpinTime - 1;
}

//hyper countdown timer function
this._hyperDriveCountdown = function() {
	missionVariables["countdown_to_zero"]--;
}