TinkersConstruct/src/main/java/tconstruct/modifiers/tools/ModAutoSmelt.java

package tconstruct.modifiers.tools;

import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;

public class ModAutoSmelt extends ModBoolean
{

    public ModAutoSmelt(ItemStack[] items, int effect, String tag, String c, String tip)
    {
        super(items, effect, tag, c, tip);
    }

    @Override
    protected boolean canModify (ItemStack tool, ItemStack[] input)
    {
        NBTTagCompound tags = tool.getTagCompound().getCompoundTag("InfiTool");
        if (tags.getBoolean("Silk Touch"))
            return false;
        return tags.getInteger("Modifiers") > 0 && !tags.getBoolean(key); // Will
                                                                          // fail
                                                                          // if
                                                                          // the
                                                                          // modifier
                                                                          // is
                                                                          // false
                                                                          // or
                                                                          // the
                                                                          // tag
                                                                          // doesn't
                                                                          // exist
    }

}