Ada2

I use my proxies for that. CommonProxy: public boolean isSinglePlayer() { return false; } ClientProxy: @Override public boolean isSinglePlayer() { return Minecraft.getMinecraft().isSingleplayer(); } Works very well so far.

Look at world.getWordInfo() append a '.' and look what you can find in there.

I had to search a longer time for a stabel way to get the world, this is what I found (wrapped in a method in my commonproxy): /** * Gets the current world. * @param dim int the dimension of the world * * @return World the current world */ public World getWorld(int dim) { return DimensionManager.getWorld(dim); }

On server side execute "world.markBlockForUpdate(x, y, z);" with x,y,z being the respective coordinates of your tile entity. Override of getDescriptionpacket is needed for this to work, also override onPacketData in your tile entity handling the packet that comes from the server.

Take a look at IPlayerTracker in FML/common. Should have what you need.

In one of my blocks I have @Override public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving) { par1World.setBlock(par2, par3 + 1, par4, 3004); par1World.setBlock(par2, par3 + 2, par4, 3005); } to place two other blocks directly above this block.

Remove the static modifier.