Need help with the replacement BlockMetadata in 1.8

[Iboticial]

Hello,

 

I'm currently updating a Mod from 1.7 to 1.8 but I have problems with this piece of code and I couldn't find anything helpful on the internet.

Spoiler

final int h = movingobjectposition.getBlockPos().getX();
                    final int m = movingobjectposition.getBlockPos().getY();
                    final int k2 = movingobjectposition.getBlockPos().getZ();
                    if (world.getBlockState(new BlockPos(h, m, k2)) == Blocks.iron_door) {
                        final int id = world.getBlockMetadata(h, m, k2);
                        int j3 = 2;
                        j3 ^= 0x4;
                        switch (id) {
                            case 0: {
                                world.setBlockMetadata(h, m, k2, j3 - 2, 2);
                                break;
                            }
                            case 1: {
                                world.setBlockMetadata(h, m, k2, j3 - 1, 2);
                                break;
                            }
                            case 2: {
                                world.setBlockMetadata(h, m, k2, j3, 2);
                                break;
                            }
                            case 3: {
                                world.setBlockMetadata(h, m, k2, j3 + 1, 2);
                                break;
                            }
                            case 4: {
                                world.setBlockMetadata(h, m, k2, j3 + 10, 2);
                                break;
                            }
                            case 5: {
                                world.setBlockMetadata(h, m, k2, j3 + 11, 2);
                                break;
                            }
                            case 6: {
                                world.setBlockMetadata(h, m, k2, j3 - 4, 2);
                                break;
                            }
                            case 7: {
                                world.setBlockMetadata(h, m, k2, j3 - 3, 2);
                                break;
                            }
                        }
                        world.markBlockRangeForRenderUpdate(h, m, k2, h, m, k2);
                        break Label_27960;
                    }

 

Because I didn't code the mod and never coded with 1.7, I can't work out what it does. With this I especially mean the line:

final int id = world.getBlockMetadata(h, m, k2);

What does the method getBlockMetaData() return?

 

And what does the setBlockMetaData() method set in the code?

And finally, how can I do all the stuff using 1.8 methods?

 

I will appreciate any help.

[Choonster]

World#getBlockMetadata returned the block metadata at the specified position, World#setBlockMetadata set the block metadata at the specified position.

 

Metadata was replaced by the block state system, you can read an introduction to it here. Use World#getBlockState and World#setBlockState instead of World#getBlock/World#getBlockMetadata and World#setBlock/World#setBlockMetadata.

 

Use IBlockState#getValue to get the value of an IProperty in an IBlockState and IBlockState#withProperty to get an IBlockState with the IProperty set to specified value.

 

I would recommend against updating to 1.8, since it's outdated and not really supported by Forge any more. I recommend updating straight to 1.11.2, or at least to 1.8.9 if you have to use a 1.8.x version.