Adding a cost reduction to my purchasable items

Question

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[i].purchaseCost = itemList[i].purchaseCost - (itemList[i].purchaseCost * 0.05f);
         }

}

Answer 1

Best Answer

Answer by TBruce · May 10, 2016 at 10:15 PM

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[i].purchaseCost = costList * currentDiscount;

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ss_rip · May 10, 2016 at 10:20 PM 0

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the result is pretty much the same though ;/ For example 250 coin cost ends up at 149 on 10 purchases. Should have been 125. And if i continue upgrade eventually the price gets nullified.

TBruce ss_rip · May 10, 2016 at 10:31 PM 0

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Yes I saw that immediately that is the reason for my change above. (note: personally I would make itemList & costList List's but I do not know how your code is set up and just figure you would modify it to match your code anyway.)

ss_rip TBruce · May 10, 2016 at 10:50 PM 0

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finally! That took way longer than it should have!! Thanks a bunch :)

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Adding a cost reduction to my purchasable items

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