Block Class

package Com.BRHSM.Mod.Blocks;

import java.util.Random;

import Com.BRHSM.Mod.Registry.MainRegistry;
import Com.BRHSM.Mod.TileEntities.TileEntityGemSmelter;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFurnace;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.IIcon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class GemSmelter extends Block{

    @SideOnly(Side.CLIENT)
    private IIcon top;
    @SideOnly(Side.CLIENT)
    private IIcon front;
    @SideOnly(Side.CLIENT)
    private IIcon bottom;

    private static boolean IsWorking;
    private final boolean IsWorking2;
    private final Random random = new Random();

    public GemSmelter( int ID, Material mat, boolean activity){
        super(mat);
        this.setCreativeTab(CreativeTabs.tabMaterials);
        IsWorking2 = activity;
    }

    @SideOnly(Side.CLIENT)
    public void registerBlockIcons(IIconRegister reg){
        this.blockIcon = reg.registerIcon(MainRegistry.MODID + ":GemSmelter_Side");
        this.top = reg.registerIcon(this.IsWorking2 ? MainRegistry.MODID + ":GemSmelter_Top_On" :  MainRegistry.MODID + ":GemSmelter_Top_Off");
        this.bottom = reg.registerIcon(MainRegistry.MODID + ":GemSmelter_Bottom");
        this.front = reg.registerIcon(MainRegistry.MODID + ":GemSmelter_Front");
    }

    public IIcon getIcon(int side, int meta){
        if(side == 1){
            return top;
        }else if(side == 3){
            return front;
        }else if(side == 0){
            return bottom;
        }else{
            return this.blockIcon;
        }

    }

    public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer player, int par6, float par7, float par8, float par9){
        player.openGui(MainRegistry.MODID, 0, world, x, y, z);
        return true;
    }

    public Item GetItemDropped(int par1, Random random, int par3){
        return Item.getItemFromBlock(MainRegistry.GemSmelter);
    }

    public Item GetItem(World world, int par2, int par3, int par4){
        return Item.getItemFromBlock(MainRegistry.GemSmelter);
    }

    @SideOnly(Side.CLIENT)
    public void onBlockAdded(World world, int x, int y, int z){
        super.onBlockAdded(world,x,y,z);
        this.direction(world,x,y,z);
    }

    private void direction(World world, int x, int y, int z) {
        if(world.isRemote){
            Block direction  = world.getBlock(x, y, z-1);
            Block direction1 = world.getBlock(x, y, z+1);
            Block direction2 = world.getBlock(x-1, y, z);
            Block direction3 = world.getBlock(x+1, y, z);
            byte byte0 = 3;

            if(direction.func_149730_j() && direction.func_149730_j()){
                byte0 = 3;
            }
            if(direction1.func_149730_j() && direction1.func_149730_j()){
                byte0 = 2;
            }
            if(direction2.func_149730_j() && direction2.func_149730_j()){
                byte0 = 5;
            }
            if(direction3.func_149730_j() && direction3.func_149730_j()){
                byte0 = 4;
            }

            world.setBlockMetadataWithNotify(x,y,z,byte0,2);

        }
    }

    public void onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase entity, ItemStack itemstack){
        int direction = MathHelper.floor_double((double)(entity.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;
        if(direction == 0){
            world.setBlockMetadataWithNotify(x,y,z,2,2);
        }
        if(direction == 1){
            world.setBlockMetadataWithNotify(x,y,z,5,2);
        }
        if(direction == 2){
            world.setBlockMetadataWithNotify(x,y,z,3,2);
        }
        if(direction == 3){
            world.setBlockMetadataWithNotify(x,y,z,4,2);
        }

        if(itemstack.hasDisplayName()){
            ((TileEntityGemSmelter) world.getTileEntity(x, y, z)).furnaceName(itemstack.getDisplayName());
        }

    }

    public static void updateBlockState(boolean IsActive, World world, int x, int y, int z){
        int direction = world.getBlockMetadata(x, y, z);
        TileEntity tileentity = world.getTileEntity(x, y, z);
        IsWorking = true;

        if(IsActive){
            world.setBlock(x,y,z,MainRegistry.GemSmelterActive);
        }else{
            world.setBlock(x,y,z,MainRegistry.GemSmelter);
        }

        IsWorking = false;
        world.setBlockMetadataWithNotify(x, y, z, direction, 2);


        if(tileentity != null){
            tileentity.validate();
            world.setTileEntity(x,y,z,tileentity);
        }
    }

    public void breakBlock(World world, int x, int y, int z, Block block, int meta){
        if (!IsWorking){
            TileEntityGemSmelter tileentitygemsmelter = (TileEntityGemSmelter) world.getTileEntity(x, y, z);

            if(tileentitygemsmelter != null){
                for(int i=0;i<tileentitygemsmelter.getSizeInventory();++i){
                    ItemStack itemstack = tileentitygemsmelter.getStackInSlot(i);

                    if(itemstack != null){
                        float f=this.random.nextFloat()*0.6F+0.1F;
                        float f1=this.random.nextFloat()*0.6F+0.1F;
                        float f2=this.random.nextFloat()*0.6F+0.1F;

                        while(itemstack.stackSize > 0){
                            int j = this.random.nextInt(21)+10;
                            if(j>itemstack.stackSize){
                                j = itemstack.stackSize;
                            }
                            itemstack.stackSize -= j;
                            EntityItem entityitem = new EntityItem(world, (double) ((float) x+f), (double) ((float) y+f1), (double) ((float)z+f2), new ItemStack(itemstack.getItem(),j,itemstack.getItemDamage()));

                            if(itemstack.hasTagCompound()){
                                entityitem.getEntityItem().setTagCompound(((NBTTagCompound) itemstack.getTagCompound().copy()));
                            }
                            float f3 = 0.025F;
                            entityitem.motionX = (double) ((float)this.random.nextGaussian() * f3);
                            entityitem.motionY = (double) ((float)this.random.nextGaussian() * f3 + 0.1F);
                            entityitem.motionZ = (double) ((float)this.random.nextGaussian() * f3);
                            world.spawnEntityInWorld(entityitem);
                        }
                    }
                }
                world.func_147453_f(x,y,z,block);
            }
        }
        super.breakBlock(world,x,y,z,block,meta);
    }

    @SideOnly(Side.CLIENT)
    public void randomDisplayTick(World world, int x, int y, int z ,Random random){
        if(this.IsWorking2){
            int direction = world.getBlockMetadata(x, y, z);
            float xx = (float) x + 0.5F, yy = (float) y + random.nextFloat() * 6.0F /16.0F ,zz = (float) z + 0.5F, xx2 = random.nextFloat() * 0.3F, zz2 = 0.5F ;

            if(direction == 1){
                world.spawnParticle("smoke", (double) (xx-zz2), (double) yy, (double) zz + xx2, 0.0F, 0.0F, 0.0F);
            }
        }

    }
}