java - How to create LootBox System like videogames

Question

I want to practice java creating a LootBox Open System. I just tried this.

-Creating an Interface called Tier. -Creating UltimateTier,PremiumTier,StandardTier classes that implements Tier Interface. -Creating classes like Gold that extends UltimateTier,Titanium extends UltimateTier, Silver extends PremiumTier, etc.

Then I use org.reflections to find classes that inherits from another to create chances to get rare items like gold with this code

Tier[] tierItem = new Tier[3];
    for (int i = 0; i < 3; i++) {
         int itemQuality = (int)(1 + Math.random()* 10);

        int itemQuality = 1;
        if (itemQuality == 1) {
            tierItem[i] = new UltimateItemTier().getItem();
        }
        if (itemQuality >= 2 && itemQuality <= 4) {
            tierItem[i] = new PremiumItemTier();

        }
        if (itemQuality >= 5) {
            tierItem[i] = new StandardItemTier();
        }
    }

    return tierItem;

It returns me a list of 3 TIERITEMS, but I need to choose randomly 1 of those items for according to each tier on the list.

for example, if there is 10 PremiumItems and when I open the StandarBox, the list return "PremiumTier", "PremiumTier" , "StandardTier", the code must select any random item that inherits or match that Tier.

So list must return ( for example ) "Silver(PremiumTier), PremiumMetal(PremiumTier), Wood(StandardTier)

question from:https://stackoverflow.com/questions/66054133/how-to-create-lootbox-system-like-videogames

Answer 1

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