[1.7.10] Set held item and decreasing inventory issue

[TheiTay]

I'm currently working on pathfinding algorithm mod, when i decrease the inventory like this:

 

@SubscribeEvent
public void onPlayerTick(TickEvent.PlayerTickEvent event) {
	InventoryPlayer inventory = event.player.inventory;
	ItemStack itemStack = null;
	for (ItemStack stack : inventory.mainInventory){
		if (stack != null && stack.getItem() != null && stack.getItem() instanceof ItemBlock){
			itemStack = stack;
			event.player.setItemInUse(stack, stack.getItem().getMaxItemUseDuration(stack));
		}
	}
	ItemBlock blockItem = (ItemBlock)itemStack.getItem();
	inventory.consumeInventoryItem(blockItem);
	inventory.markDirty();
	event.player.inventoryContainer.detectAndSendChanges();
}

 

The stack size is decreasing, but only locally - because next time I mine the same type of block the number is jumping back to its value before the decreasing.

 

Another question is how do I change to held item to the block that I'm using?

I found the property:

inventory.currentItem

(int)

but I don't know how to get in which slot my itemstack is...

 

Thanks in advance.

[TheiTay]

Only do things on the server. Also check event.phase, otherwise your code runs twice per tick.

 

inventory.currentItem is the slot.

 

Hey, for the first answer, can you explain how? I thought that when I use event.player it would run on server.

 

I know that currentItem is the slot, but I want to set it to itemStack field, and I don't know its slot.

 

Thank you for the answer