How to use

isValidSubitemMaterial

method

in

slimeknights.tconstruct.library.tools.Pattern

protected boolean isValidSubitem(Item toolpart) {
 if(toolpart instanceof IToolPart) {
  for(Material material : TinkerRegistry.getAllMaterials()) {
   if(isValidSubitemMaterial(material) && ((IToolPart) toolpart).canUseMaterial(material)) {
    return true;
   }
  }
  return false;
 }
 return true;
}