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Custom half-slabs with metadata(x:0, x:1, etc...)


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I can only make without losing metadata(for detect bounds) old style half-slabs. I want make vanilla like custom half slabs with metadata(x:0, x:1, etc...). So i need help!

Current code(doesn't work properly):

package mypackage;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.List;
import java.util.Random;
import net.minecraft.block.*;
import net.minecraft.item.*;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.block.material.Material;
import net.minecraft.entity.Entity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.Facing;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public class BlockHalfSlabs extends BlockContainer
{
    private boolean isDoubleSlabs = false;
    private boolean isDownSlab = false;
    
    public BlockHalfSlabs(int par1, Material par2, boolean par3, int par4)
    {
        super(par1, par4, par2);
        this.setRequiresSelfNotify();
this.blockIndexInTexture = par4;
        this.setLightOpacity(0);
        this.isDoubleSlabs = par3;
        if (isDoubleSlabs)
        {
            opaqueCubeLookup[par1] = true;
        }
        else
        {
            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
        }
    }
    
    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int x, int y, int z)
    {
        if (this.isDoubleSlabs)
        {
            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
        }
        else
        {
        TileEntityHalfSlab t = (TileEntityHalfSlab) par1IBlockAccess.getBlockTileEntity(x, y, z);

            if (t.isDownSlab)
            {
                this.setBlockBounds(0.0F, 0.5F, 0.0F, 1.0F, 1.0F, 1.0F);
            }
            else
            {
                this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
            }
        }
    }
    
    public void setBlockBoundsForItemRender()
    {
        if (this.isDoubleSlabs)
        {
            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
        }
        else
        {
            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
        }
    } 
    
    public int getBlockTextureFromSide(int par1)
    {
        return this.getBlockTextureFromSideAndMetadata(par1, 0);
    }
     
    
@SideOnly(Side.CLIENT)
public void getSubBlocks(int par1, CreativeTabs tab, List subItems) {
	for (int ix = 0; ix < 16; ix++) {
		subItems.add(new ItemStack(this, 1, ix));
	}
}
            
    /**
     * if the specified block is in the given AABB, add its collision bounding box to the given list

    /**
     * Returns the block texture based on the side being looked at.  Args: side
     */
@Override
public int getBlockTextureFromSideAndMetadata (int side, int metadata) {
	return this.blockIndexInTexture + metadata;
}

public String getTextureFile () {
        return ClientProxy.BLOCK_PNG;
}

    /**
     * Returns the quantity of items to drop on block destruction.
     */
@Override
public int damageDropped (int metadata) {
	return metadata;
}
        
    @Override
  public int onBlockPlaced(World par1World, int x, int y, int z, int par5, float par6, float par7, float par8, int par9)
    {
        if(par7 <= 0.5F) {
        isDownSlab = true;
        } else {
        isDownSlab = false;
        }
par1World.scheduleBlockUpdate(x, y, z, blockID, 1);
        System.out.println(isDownSlab);
        return par9;
    }
    
    public void updateTick(World par1World, int x, int y, int z, Random par5Random) {
    TileEntityHalfSlab t = (TileEntityHalfSlab) par1World.getBlockTileEntity(x, y, z);
    t.isDownSlab = this.isDownSlab;
    System.out.println(t.isDownSlab);
    }
    
    public void addCollidingBlockToList(World par1World, int par2, int par3, int par4, AxisAlignedBB par5AxisAlignedBB, List par6List, Entity par7Entity)
    {
        this.setBlockBoundsBasedOnState(par1World, par2, par3, par4);
        super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    }

    /**
     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
     */
    public boolean isOpaqueCube()
    {
        return this.isDoubleSlabs;
    }

    /**
     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
     */
    public boolean renderAsNormalBlock()
    {
        return this.isDoubleSlabs;
    }

    @SideOnly(Side.CLIENT)

    /**
     * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
     * coordinates.  Args: blockAccess, x, y, z, side
     */
    public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    {
        if (this.isDoubleSlabs)
        {
            return super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5);
        }
        else if (par5 != 1 && par5 != 0 && !super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5))
        {
            return false;
        }
        else
        {
            TileEntityHalfSlab t = (TileEntityHalfSlab) par1IBlockAccess.getBlockTileEntity(par2, par3, par4);
            return t.isDownSlab ? (par5 == 0 ? true : (par5 == 1 && super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5) ? true : !isBlockSingleSlab(par1IBlockAccess.getBlockId(par2, par3, par4)) || (par1IBlockAccess.getBlockMetadata(par2, par3, par4) &  == 0)) : (par5 == 1 ? true : (par5 == 0 && super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5) ? true : !isBlockSingleSlab(par1IBlockAccess.getBlockId(par2, par3, par4)) || (par1IBlockAccess.getBlockMetadata(par2, par3, par4) &  != 0));
        }
    }

    @SideOnly(Side.CLIENT)

    /**
     * Takes a block ID, returns true if it's the same as the ID for a stone or wooden single slab.
     */
    private static boolean isBlockSingleSlab(int par0)
    {
        return par0 == my_mod_file.blockLimestoneStoneHalfSlab.blockID || par0 == my_mod_file.blockLimestoneBrickHalfSlab.blockID;
    }

    /**
     * Get the block's damage value (for use with pick block).
     */
    public int getDamageValue(World par1World, int par2, int par3, int par4)
    {
        return super.getDamageValue(par1World, par2, par3, par4) & 7;
    }

    @SideOnly(Side.CLIENT)

    /**
     * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
     */
    public int idPicked(World par1World, int par2, int par3, int par4)
    {
        return isBlockSingleSlab(this.blockID) ? this.blockID : (this.blockID == my_mod_file.blockLimestoneStoneHalfSlabDouble.blockID ? my_mod_file.blockLimestoneStoneHalfSlab.blockID : (this.blockID == my_mod_file.blockLimestoneBrickHalfSlabDouble.blockID ? my_mod_file.blockLimestoneBrickHalfSlab.blockID : my_mod_file.blockLimestoneBrickHalfSlab.blockID));
    }

    /**
     * Returns the quantity of items to drop on block destruction.
     */
    public int quantityDropped(Random par1Random)
    {
        return this.isDoubleSlabs ? 2 : 1;
    }

    /**
     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
     */
    
public boolean hasTileEntity(int metadata)
{
	return true;
}

public TileEntity createNewTileEntity(World par1World)
{
	try
	{
        return new TileEntityHalfSlab();
	}
	catch (Exception var3)
	{
        throw new RuntimeException(var3);
	}
}	
}

P.S. Sorry for ban eglish  :P

P.S.S. Thanks in advance! :)

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