Would be nice to have a way to check if an Item/GroundItem is stackable. I run into some problems when I have to check if I can loot an item when inventory is full.

Wrote this up in hopes it helps you a bit.

    public boolean isStackable() {
        return closestGroundItemForName("Meow").getDefinition().getName().endsWith("s") ||
                closestGroundItemForName("Meow").getDefinition().getName().endsWith("es");
    }

You'd of course have to implement the isStackable check in your own method. What I wrote clearly won't work because it needs fixing up, but you get the idea.

I'm currently checking if if the amount >= 2 and it works for most of the time but the problems come with things like seeds where the drop is usually just one seed