spaceloop1/js/states/buy-fuel.js

states.push({
	id: "buy-fuel",
	button: "Buy Fuel (100 for ₩300)",
	action: "Purchasing",
	duration: 300,
	requires: () => {
		let enoughMoney = userData.money >= 300;
		if (!enoughMoney) {
			errorMessage = "Not enough money to buy fuel";
			return false;
		}
		let confirmPurchase = confirm(`Are you sure you want to purchase 100 fuel for ₩300?`);
		return confirmPurchase;
	},
	run: () => {
		userData.money -= 300;
		userData.fuel += 100;
	},
});