Hey there,

 

So I have 4 types of 'gems', in the inventory, they cannot be stacked, however, when they are picked up or /give they look like the respective crystal, but they ended up stacking in the inventory. My explanation might be dull, so here are some captioned pictures of whats happening:

 

 

In the inventory, the different gems cannot be stacked.

 

|

v

However, when I pick up a clearly non-stackable crystal, it stacks into it.

 

 

 

Here is item class code:

public class ItemMagicGems extends ItemBase {

    public static final Gems[] ALL_GEMS = Gems.values();

    public Gems type;
    private final boolean isEmpowered;



    public ItemMagicGems(String name, boolean isEmpowered) {
        super(name);
        this.setFull3D();
        this.isEmpowered = isEmpowered;

    }

    @Override
    public String getUnlocalizedName(ItemStack stack){
        return stack.getItemDamage() >= ALL_GEMS.length ? StringUtil.BUGGED_ITEM_NAME : this.getUnlocalizedName()+"_"+ALL_GEMS[stack.getItemDamage()].name;
    }

    @Override
    public boolean hasEffect(ItemStack stack){
        return this.isEmpowered;
    }

    @Override
    public EnumRarity getRarity(ItemStack stack){
        return stack.getItemDamage() >= ALL_GEMS.length ? EnumRarity.COMMON : ALL_GEMS[stack.getItemDamage()].rarity;
    }

    @Override
    @SideOnly(Side.CLIENT)
    public void getSubItems(Item item, CreativeTabs tab, NonNullList list){
        for(int j = 0; j < ALL_GEMS.length; j++){
            list.add(new ItemStack(this, 1, j));
        }
    }

    @Override
    protected void registerRendering(){
        for(int i = 0; i < ALL_GEMS.length; i++){
            String name = this.getRegistryName()+"_"+ALL_GEMS[i].name;
            PlentifulMisc.proxy.addRenderRegister(new ItemStack(this, 1, i), new ResourceLocation(name), "inventory");
        }
    }

}

,

here is how I'm registering them:

        item_gems = new ItemMagicGems("item_gem", false);

 

Thanks

Call

setHasSubtypes(true);

from your

Item

constructor.

Yep, that seemed to fix it. Feel pretty dumb to forget that, Thanks!