[1.7.2] Multi Block Structure Help

This doesn't work...I did try again though

 

Block Class

 

 

public class Forge extends BlockContainer{

public Forge(int id, Material material){
	super(material);
	this.setCreativeTab(TestCraft.TestCraftTab);
}

public void onBlockAdded(World world, int x, int y, int z){
	TileEntityForge tile = new TileEntityForge();
	if(!tile.shouldRender){
		if(world.getBlock(x, y, z) == Blocks.stone
    			&& world.getBlock(x, y-1, z) == Blocks.stone
    			&& world.getBlock(x, y+1, z) == Blocks.stone
    			&& world.getBlock(x-1, y, z) == Blocks.stone
    			&& world.getBlock(x-1, y-1, z) == Blocks.stone
    			&& world.getBlock(x-1, y+1, z) == Blocks.stone
    			&& world.getBlock(x+1, y, z) == Blocks.stone
    			&& world.getBlock(x+1, y-1, z) == Blocks.stone
    			&& world.getBlock(x+1, y+1, z) == Blocks.stone){
			System.out.println("I am put together!");
    		((TileEntityForge)tile).shouldRender = true; 
		}
	}

}

@Override
public TileEntity createNewTileEntity(World var1, int var2) {
	return new TileEntityForge();
}
}

 

 

 

And the TileEntity Class

 

 

public class TileEntityForge extends TileEntity{
public boolean shouldRender = false;

@Override
public Packet getDescriptionPacket()
{
	NBTTagCompound tag = new NBTTagCompound();
	this.writeToNBT(tag);
	return new S35PacketUpdateTileEntity(xCoord, yCoord, zCoord, 0, tag);
}

@Override
public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt)
{
	NBTTagCompound tag = pkt.func_148857_g();
	this.readFromNBT(tag);
}

@Override
public void readFromNBT(NBTTagCompound tagCompound)
{
	super.readFromNBT(tagCompound);
	this.shouldRender = tagCompound.getBoolean("shouldRender");
}

@Override
public void writeToNBT(NBTTagCompound tagCompound)
{
	super.writeToNBT(tagCompound);
	tagCompound.setBoolean("shouldRender", this.shouldRender);
}
}

 

 

 

Any help? I have tried many methods...

TileEntityForge tile = new TileEntityForge();

Why are you making a brand new instance instead of getting the block's actual tile entity? ><

TileEntityForge blockTile = (TileEntityForge) world.getTileEntity(x, y, z);

Also, I why are you checking in your block added section instead of the checkMultiBlockForm from the tile (assuming you're using the tutorial). Judging by your code, you want your block to be surrounded by stone. If you followed the tutorial, all you would have to do to check if it formed was change that method to the following:

public boolean checkMultiBlockForm() {
    int i = 0;
    // Scan a 3x3x3 area, starting with the bottom left corner
    for (int x = xCoord - 1; x < xCoord + 2; x++)
        for (int y = yCoord -1; y < yCoord + 2; y++)
            for (int z = zCoord - 1; z < zCoord + 2; z++) {
                if (world.getBlock(x, y, z) == Blocks.stone)
                    i++;
            }
    return i == 26;
}

This would allow your block to constantly check around itself to make sure it's surrounded by stone.

Edit: Since you guys seem to have trouble grasping how this simple implementation works. I made an example mod that adds two types of multiblock blocks. The 1st requires you make a 3x3x3 structure with a hollow center using the block and it'll spawn a diamond block 6 blocks above the master. The 2nd require you surround it with stone and will turn said stone into diamonds once it sees that the structure is formed.

https://github.com/Lomeli12/MultiBlock-Tutorial