Как сделать так, чтобы моя "вода" растекалась?

Версия Minecraft
1.6.4
Код:
package assets.testmod.src;



import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import cpw.mods.fml.client.registry.ClientRegistry;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.event.FMLServerStartingEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.network.NetworkRegistry;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.item.EnumArmorMaterial;
import net.minecraft.item.EnumToolMaterial;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.item.crafting.CraftingManager;
import net.minecraft.item.crafting.IRecipe;
import net.minecraftforge.common.EnumHelper;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.fluids.Fluid;
import net.minecraftforge.fluids.FluidRegistry;

@Mod(modid = ModInfo.MODID, name = ModInfo.NAME, version = ModInfo.VERSION)
@NetworkMod(clientSideRequired = true, serverSideRequired = false)


public class TestMod
{
    
    
    
    public static Block WaterK = new WaterK(2095).setUnlocalizedName("Kisla");
     public static Fluid testFluid = new Fluid("testFluid");
     public static Block fluidBlock;

 @Mod.Instance(ModInfo.MODID)
    public static TestMod mod;

    @EventHandler
    public void preInit(FMLPreInitializationEvent event) {
       
      
        GameRegistry.registerBlock(WaterK, "WaterK");
        LanguageRegistry.addName(WaterK, "WaterK");
        FluidRegistry.registerFluid(testFluid);
        fluidBlock = new BlockTEstFluid(2096, testFluid, Material.water);
        GameRegistry.registerBlock(fluidBlock, "testfluid");
        LanguageRegistry.addName(fluidBlock, "Test fluid");
    }
Код:
package assets.testmod.src;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.world.World;

public class WaterK extends Block {

    public WaterK(int par1) {
        super(par1,Material.water);
        this.setHardness(1000.0F);
        this.setResistance(1000.0F);
        this.setCreativeTab(CreativeTabs.tabBlock);
        this.setTextureName(":Kisla");
    }
    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    {
        return null;
    }

    public boolean isOpaqueCube()
    {
        return false;
    }

    public boolean renderAsNormalBlock()
    {
        return false;
    }
    public int getRenderType()
    {
        return 4;
    }

}
Код:
package assets.testmod.src;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.util.Icon;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.fluids.BlockFluidClassic;
import net.minecraftforge.fluids.Fluid;

public class BlockTEstFluid extends BlockFluidClassic {
    @SideOnly(Side.CLIENT)
       public Icon stillIcon;
       @SideOnly(Side.CLIENT)
       public Icon flowingIcon;
       public BlockTEstFluid(int id, Fluid fluid, Material material) {
           super(id, fluid, material);
           setCreativeTab(CreativeTabs.tabBlock);
       }
      

       @Override
       public Icon getIcon(int side, int meta) {
           return (side == 0 || side == 1)? stillIcon : flowingIcon;
       }

       @SideOnly(Side.CLIENT)
       public void registerBlockIcons(IconRegister register) {
           stillIcon= register.registerIcon("testMod:TestFluidStill");
           flowingIcon=register.registerIcon("testMod:TestFluidFlowing");
       }

       @Override
       public boolean canDisplace(IBlockAccess world, int x, int y, int z) {
           if(Block.blocksList[world.getBlockId(x,y,z)].blockMaterial.isLiquid()) return false;
           return super.canDisplace(world, x, y, z);
       }

       @Override
       public boolean displaceIfPossible(World world, int x, int y, int z) {
           if(Block.blocksList[world.getBlockId(x,y,z)].blockMaterial.isLiquid()) return false;
           return super.displaceIfPossible(world, x, y, z);
       }
    }
 
Сверху