This is the code causing me few problems:

Lvl0Id[count] = world.getBlockId(x, y, z);

                        count++;

 

 

int count = 0;
        int y = pos.getY() - 1;
        boolean Test = true;
            for (int x = pos.getX() + 3; x > pos.getX() - 4; x--)
            {
                for (int z = pos.getZ() - 2; z < pos.getZ() + 2; z++)
                {
                    if (x == pos.getX() + 3 && z == pos.getZ() - 2 || x == pos.getX() + 3 && z == pos.getZ() + 1 || x == pos.getX() - 3 && z == pos.getZ() - 2 || x == pos.getX() - 3 && z == pos.getZ() + 1)
                    {
                        continue;
                    } else
                    {
[b]Original code[/b]
                        Lvl0Id[count] = world.getBlockId(x, y, z);
                        count++;
[b]was experimenting with block states but couldn't return an int.[/b]
                        Lvl0Id[count] = state.getValue(x,y,z);
                        count++;

                        Lvl0Id[count] = worldIn.getBlockState(new BlockPos(x,y,z)).getBlock());
                        count++;
                        if (worldIn.isBlockFullCube(new BlockPos(x,y,z)))
                        {
                            continue;
                        } else
                        {
                            //Error = "error code here";
                            //Test = false;
                            continue;
                        }
                    }
                }
            }

 

 

Been awhile since I've done any modding, thought someone could help shine some light

World#getBlockState

returns the current state of the block at the specified position.

 

Numeric block IDs are automatically assigned per-world and can change on world load. You should avoid using them if at all possible.

 

What are you actually trying to do? What is the

Lvl0Id

array for?

Was trying to use a loop to check if an area of blocks is flat and if a block is missing return an-ingame error message to the player.

 

using the array to check number of blocks on the ground

 

Lvl0Id = new int[24];

I don't understand why you need an array of block IDs, but you should probably replace it with an array of

Block

s (the block type) or

IBlockState

s (essentially a

Block

and metadata).

 

You can read more about block states here.

What version are you upgrading from? MC 1.6.2?

 

Why to 1.8.9? If upgrading, you should if possible aim for the latest MC version supported by Forge.

 

And what are the problems? Do you have a crash report or Forge log to post?

 

 

Thanks for the link, got code working when I first started coding was easier to check the block ids as mc didn't have many blocks, I've got the code checking the block material types which seems to be working fine now

 

 

 

Was upgrading from 1.5.2. Problem was I was checking for the block ids of a loop of blocks to check no blocks are missing but couldn't call the block id as we have blockstates now,

 

When I started few weeks ago wasn't a recommended 1.9 version and plan was to update to 1.8.9 then update to 1.9. Code shouldn't of changed to much between versions.