BlueprintBase bpt = instanciateBlueprint();
if (bpt == null) {
return null;
}
bpt = bpt.adjustToWorld(worldObj, x, y, z, o);
if (getStackInSlot(0).getItem() instanceof ItemBlueprintStandard) {
return new BptBuilderBlueprint((Blueprint) bpt, worldObj, x, y, z);
} else if (getStackInSlot(0).getItem() instanceof ItemBlueprintTemplate) {
return new BptBuilderTemplate(bpt, worldObj, x, y, z);