I have a cutom pickaxe called enderPickaxe. I want the pickAxe to double all ores and smelt it. The code I have will double and smelt anything that is smeltable.How would i finds ores only so mining a log or cobble won't double and smelt it. Is there a function like boolean isOre(ItemStack x) that would make it easy to check. This is how I currently do it

 

	@SubscribeEvent
public void onBlockHarvest(HarvestDropsEvent event)
{
	if(event.harvester.getHeldItem()!=null&&event.harvester.getHeldItem().getItem() instanceof enderPickaxe)
	{
		ItemStack stack = FurnaceRecipes.smelting().getSmeltingResult(new ItemStack(event.block,1,event.blockMetadata));

			if(stack!=null)
			{
				ItemStack x=new ItemStack(stack.getItem(),2);
				event.drops.clear();
				event.drops.add(x);
			}
	}
}

That won't necessarily work.  You've dropped the metadata from the smelting result.  It also ignores ore blocks that don't drop blocks, but items, which can then be smelted, you'd need to look at the event.drops arraylist.

 

That said, to answer your question:

OreDictionary.getOreName(OreDictionary.getOreIDs(stack));

Note that that is not valud code, as getOreIDs() returns an array.

 

if(OreDictionary.getOreIDs(stack)[0]!=0)

 

the array contains integer of all ids associated with the ore. I just check if it has a value or is the initial value of zero.

 

would something like this work to check if it is an ore.

 

The other points you mention yes I realize it and I will fix it so it checks if it is smelt able then smelt it and double and if the drops are items then double it.

Stone is registered "stone" in the oredict, along with other blocks.  So "is it an ore" may not be true.

I guess that leaves me with getting the name of the block and using blockname.contain("Ore") to check if "Ore" is in it.