Block class

package minecraft.Dark_Knight_Mod.blocks;

import minecraft.Dark_Knight_Mod.blocks.tileentity.TileEntityWindmill;
import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class windmill extends BlockContainer {

	public windmill(Material material) {
		super(material);

	}
     public int getRenderType(){

 return -1;
     }
     public boolean isOpaqueCube()
     {
         return false;
     }

	@Override
	public TileEntity createNewTileEntity(World var1, int var2) {

		return new TileEntityWindmill();
	}
	 public boolean renderAsNormalBlock() {

	        return false;
	    }
}