Treat null as a default value

src/main/java/exopandora/worldhandler/builder/CommandBuilderNBT.java

@@ -4,8 +4,8 @@ import java.util.ArrayList;
 import java.util.List;
 
 import exopandora.worldhandler.builder.component.IBuilderComponent;
+import exopandora.worldhandler.util.NBTHelper;
 import net.minecraft.nbt.CompoundNBT;
-import net.minecraft.nbt.INBT;
 import net.minecraftforge.api.distmarker.Dist;
 import net.minecraftforge.api.distmarker.OnlyIn;
 
@@ -46,21 +46,13 @@ public abstract class CommandBuilderNBT extends CommandBuilder implements IComma
 		return super.toActualCommand();
 	}
 	
-	private CompoundNBT buildNBT()
+	protected CompoundNBT buildNBT()
 	{
 		CompoundNBT nbt = new CompoundNBT();
 		
 		for(IBuilderComponent component : this.TAG_TO_COMPONENT)
 		{
-			INBT serialized = component.serialize();
-			
-			if(component.getTag() != null && serialized != null)
-			{
-				if(!nbt.contains(component.getTag()))
-				{
-					nbt.put(component.getTag(), serialized);
-				}
-			}
+			NBTHelper.append(nbt, component);
 		}
 		
 		if(nbt.isEmpty())

src/main/java/exopandora/worldhandler/builder/types/BlockResourceLocation.java

@@ -70,7 +70,7 @@ public class BlockResourceLocation extends ItemResourceLocation
 		return this.state;
 	}
 	
-	public <T extends Comparable<T>> void withState(IProperty<T> property, T value)
+	public <T extends Comparable<T>> void setProperty(IProperty<T> property, T value)
 	{
 		if(this.state != null && this.state.has(property))
 		{
@@ -105,12 +105,6 @@ public class BlockResourceLocation extends ItemResourceLocation
 		return null;
 	}
 	
-	@Override
-	public BlockResourceLocation get()
-	{
-		return (BlockResourceLocation) super.get();
-	}
-	
 	@Override
 	public String toString()
 	{

src/main/java/exopandora/worldhandler/builder/types/ItemResourceLocation.java

@@ -52,16 +52,6 @@ public class ItemResourceLocation
 		this.nbt = nbt;
 	}
 	
-	public ItemResourceLocation get()
-	{
-		if(this.resource != null)
-		{
-			return this;
-		}
-		
-		return null;
-	}
-	
 	@Nullable
 	public static ItemResourceLocation valueOf(String input)
 	{