Allows adding bones

[anjoismysign]

Example:

// Context
World world; // some world
Location location; // some location
Spider spider; // some spider

// Create an ItemDisplay (spider.itemBones) or BlockDisplay (spider.blockBones)
ItemDisplay display = world.createEntity(location, ItemDisplay.class);
display.setTeleportDuration(1);
display.setTransformation(new Transformation(
        new Vector3f(0, 0.5f, 0.5f), //x > 0 is left, y > 0 is up, z > 0 is front
        new AxisAngle4f(0, 0, 0, 0), // if you would like to rotate to the left
        new Vector3f(1.25f, 1.25f, 1.25f), // the size
        new AxisAngle4f(0, 0, 0, 0))); // if you would like to rotate to the right
ItemStack skull = new ItemStack(Material.WITHER_SKELETON_SKULL);
display.setItemStack(skull);
display.setItemDisplayTransform(ItemDisplay.ItemDisplayTransform.FIXED);

// Let the spider "connect the dots"
spider.getItemBones().add(head);

Example in-game: