[1.8]generate blocks for custome extructure / magic block <SOLVED>

well i have this block named way down

on rigth click it must dig an spiral lader goin down but how do to spawn a steeps lader whith the rigth orientation ?

picture for example.

it may looks like this

https://www.dropbox.com/s/87mm77vrcy4oq4j/waydown.png?dl=0

but looks like this

https://www.dropbox.com/s/6r1d32ccrokteqi/waydownWrong.png?dl=0

i dont know hot to control the facing of the steeps here in 1.8

in 1.7 i do that whit the metadata of the blocks

world.setBlock(xyz , Blocks.acacia_stairs , 0, 4 ); //north

world.setBlock(xyz , Blocks.acacia_stairs , 1, 4 ); //east

world.setBlock(xyz , Blocks.acacia_stairs , 2, 4 ); //west

world.setBlock(xyz , Blocks.acacia_stairs , 3, 4 ); //south

here goes the class

package mercenarymod.blocks.unatextura;

import java.util.Random;

import mercenarymod.Mercenary;
import mercenarymod.blocks.MercenaryModBlocks;
import net.minecraft.block.Block;
import net.minecraft.block.material.MapColor;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.GameRegistry;
public class waydown extends Block
{
    public static String name = "waydown";

    public waydown()
    {
    	super(Material.rock);
        setUnlocalizedName(Mercenary.MODID + "_" + name);
        GameRegistry.registerBlock(this, name);
        setCreativeTab(Mercenary.herramientas);
        //this.maxStackSize = 1;
    }

    
    public Item getItemDropped(IBlockState state, Random rand, int fortune)
    {
        return Item.getItemFromBlock(MercenaryModBlocks.waydown);
    }
    
    public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumFacing side, float hitX, float hitY, float hitZ)
    {
    	System.out.println("onBlockActivated()");
	int x=pos.getX(), y=pos.getY(), z=pos.getZ();
    	
	int xmin=x-2, xmax=x+2;  
	int zmin=z-2, zmax=z+2;

	BlockPos pos0 = pos;
	BlockPos pos1 = pos;

    	
    	Block blk0 = Blocks.planks;
    	IBlockState state0=blk0.getDefaultState();


    	Block blkstair = Blocks.acacia_stairs;
    	IBlockState state1=blkstair.getDefaultState();
    	
    	System.out.println("pos ="+pos);
    	
    	//escavar el agujero
    	   	
    	System.out.println("xmin="+xmin+" xmax="+xmax);
    	System.out.println("zmin="+zmin+" zmax="+zmax);
    	
    	for(int yd=y; yd > 10  ; yd-- ){
    	    	    	
    	for(int =xmin;  <= xmax  ; ++ ){
    	for(int zd=zmin; zd <= zmax  ; zd++ ){	
    	    		
    	pos0 = new BlockPos(,yd,zd);	
    	System.out.println(" "+pos0);
    	   	
    	//worldIn.setBlockToAir(pos);	
    	worldIn.destroyBlock(pos0, true);
    	
    	}}}
    	
    	//poner las escaleras
    	BlockPos pos2 = new BlockPos(xmin,y,zmin);
    	pos2.down();
    	
    	for(int yd=y ; yd > 10  ; yd-- ){
    		
    	for(int =xmin;  <= xmax  ; ++ ){	
    	
    	if (( == xmin)){
    	yd--;
    	pos2 = new BlockPos(,yd,zmin);	
    	worldIn.setBlockState(pos2,state0);
    	;
    	}else{
    	yd--;
        pos2 = new BlockPos(,yd,zmin);	
        worldIn.setBlockState(pos2,state1);	
    	}
    	}	
    		
    	
    	for(int zd=zmin; zd <= zmax  ; zd++ ){	
        	y=y+2;
    		
        	if ((zd == zmin)){
        	yd--;
        	pos2 = new BlockPos(xmax,yd,zd);	
        	worldIn.setBlockState(pos2,state0);
        	;
        	}else{
        	yd--;
            pos2 = new BlockPos(xmax,yd,zd);	
            worldIn.setBlockState(pos2,state1);	
        	}
        	}	
        	
    	for(int =xmax;  >= xmin  ; -- ){	
    		y=y+2;
    		
        	if (( == xmin)){
        	yd--;
        	pos2 = new BlockPos(,yd,zmax);	
        	worldIn.setBlockState(pos2,state0);
        	;
        	}else{
        	yd--;
            pos2 = new BlockPos(,yd,zmax);	
            worldIn.setBlockState(pos2,state1);	
        	}
        	}	
    	
    	
    	for(int zd=zmax; zd >= zmin  ; zd-- ){	
        	y=y+2;
    		
        	if ((zd == zmin)){
        	yd--;
        	pos2 = new BlockPos(xmin,yd,zd);	
        	worldIn.setBlockState(pos2,state0);
        	;
        	}else{
        	yd--;
            pos2 = new BlockPos(xmin,yd,zd);	
            worldIn.setBlockState(pos2,state1);	
        	}
        	}	
    	
    	}
    	return true;
    	
    }
    
    
    
    
}//fin de la classe

it cost me to figure this.

first get load the default blockstate from the block i wanna use and then, this code creates four laders looking to four  diferents points

IBlockState acaciaLadder =  Blocks.acacia_stairs.getDefaultState();

worldIn.setBlockState(pos.north(), acaciaLadder.withProperty(FACING, EnumFacing.NORTH), 2);//por fin maldita sea

worldIn.setBlockState(pos.south(), acaciaLadder.withProperty(FACING, EnumFacing.SOUTH), 2);

worldIn.setBlockState(pos.east(), acaciaLadder.withProperty(FACING, EnumFacing.EAST), 2);

worldIn.setBlockState(pos.west(), acaciaLadder.withProperty(FACING, EnumFacing.WEST), 2);

logs work siglith diferent there arew no more blocks class but BlockRotatedPillar whicth in turn extends  block class, and i du not know how to call an acacia log  in the world.