My BlockMonitor Code

package com.battledamaged10.btech.blocks;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyDirection;
import net.minecraft.block.properties.PropertyInteger;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemDye;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public class BlockMonitor extends Block{

    public static final PropertyInteger COLOR = PropertyInteger.create("color", 0, 15);
    public static final PropertyDirection FACING = PropertyDirection.create("facing", EnumFacing.Plane.HORIZONTAL);

    public BlockMonitor(Material materialIn) {
        super(materialIn);
        this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, EnumFacing.NORTH).withProperty(COLOR, Integer.valueOf(0)));
    }

    @Override
    public boolean isOpaqueCube()
    {
        return false;
    }

    @Override
    public boolean isFullCube()
    {
        return false;
    }

    @Override
    public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumFacing side, float hitX, float hitY, float hitZ){
        ItemStack currentItem = player.getCurrentEquippedItem();
        if (currentItem != null){
            if (currentItem.getItem() instanceof ItemDye){
                world.setBlockState(pos, state.withProperty(COLOR, 15 - currentItem.getItemDamage()));
                currentItem.stackSize--;
                return true;
            }
        }
        return false;
    }

    @Override
    public IBlockState onBlockPlaced(World world, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
    {
        IBlockState state = super.onBlockPlaced(world, pos, facing, hitX, hitY, hitZ, meta, placer);
        state = state.withProperty(FACING, placer.getHorizontalFacing());
        return state.withProperty(COLOR, Integer.valueOf(0));
    }

    @Override
    public int getMetaFromState(IBlockState state)
    {
        return ((EnumFacing) state.getValue(FACING)).getHorizontalIndex();
    }

    @Override
    protected BlockState createBlockState()
    {
        return new BlockState(this, new IProperty[] { FACING, COLOR });
    }

}