Adding a cost reduction to my purchasable items

Questions & Answers
1

Hey,
this should be pretty simple but am having troubles wrapping my head around it. Basically I am working on a game that has different items that the player can be. One of the premium buys is a price reduction on the items by 5% each time. I’m currently doing this through multiplying by *0.05. The problem with what am doing is that it multiplies the already reduced value by *0.05 on each additional purchase.

this is the sample code i got so far

if (( premiumCoins >= upgradeAmount) && (perkLevel <= 49) )

{

        premiumCoins = premiumCoins - upgradeAmount;
    for (int i = 0; i < 5; i++)
		{
		itemList<em>.purchaseCost = itemList<em>.purchaseCost - (itemList_.purchaseCost * 0.05f);_</em></em>

* }*
}

2

Do something like this

public ItemType[] itemList = new Array[10];
private ItemType[] costList = new Array[10];
private float currentDiscount = 1.0f;

void Start()
{
    costList = itemList;
}

void AddDiscount(float disc)
{
    currentDiscount -= disc; // for example discount is 0.05f
}

itemList_.purchaseCost = costList * currentDiscount;_