JS Buy Test

var backpackStatus = {};
backpackStatus.price = 100;
backpackStatus.multiplier = 1.1

var statStatus = {};
statStatus.price = 500;
statStatus.muliplier = 1.01;

function buyStuff(type, count) {
	var priceTemp = type.price;
	var priceToPay = 0;
	for(i=0; i < count; i++) {
		priceToPay += priceTemp;
		priceTemp = Math.round(priceTemp * type.multiplier);
	}

	if (player.gold >= priceToPay) {
		type.price = priceTemp;
		player.gold -= priceToPay;
		return true;
	}
	Log("You do not have enough money to buy this. You need " + priceTemp + " gold.")
	return false;
}

function buyBackpack(count) {
	if(buyStuff(backpackStatus, count) {
		player.backpackUpgrade += count;
		document.getElementById("backpack").innerHTML = backpackStatus.price;
		CreateInventoryWeaponHtml();
		Log("You max inventory slots upgraded by " + count + ", now you have: " + player.inventory() + " inventory slots");
	}
}

function buyStat(count) {
	if(buyStuff(statStatus, count) {
		player.stats += count;
		document.getElementById("buyStat").innerHTML = statStatus.price;
		Log("Your stat points increased by " + count + ".");
	}
}