Hello I am trying to make a multi block for my mod. The multi block I am trying to make changes model when formed it also has a gui that stores the data to a master. If this is at all possible please help I have been working on this for a month and i have deleted my project multiple times i just restarted and I am getting frustrated. Thanks

When the block detects it is in the correct structure you should change a property in the block state (using setBlockState in World), or use getActualState in your block class). Then your blockstate json file can detect if the block is in a different state and point to a different model file.

 

Look at redstone wire. It has to detect whether there are redstone components nearby.

Thanks but how do i get it to share inventory with a gui.

Yes but how do I do that I have tried many different ways but they keep failing.

Would this work for the forming of the multiblock.

 

 public void onNeighborBlockChange(World world, int x, int y, int z , Block neighborBlock){
        updateMutiBlockStructure(world,  x, y, z);
    }

    public void onBlockAdded(World world, int x, int y, int z){
        updateMutiBlockStructure(world,  x, y, z);
    }

    public void updateMutiBlockStructure(World world, int x, int y, int z){
        isMutiBlockStructure(world,  x, y, z);
    }

    public boolean isMutiBlockStructure(World world, int x1, int y1, int z1){
        boolean mStructure = false;
        boolean currentCheckStructure = true;


        for(int x2 = 0; x2 < 3; x2++){
            for(int z2 = 0; z2 < 3; z2++){
                if(!mStructure){
                    currentCheckStructure = true;

                    for(int x3 = 0; x3 < 3; x3++){
                        for(int y3 = 0; y3 < 1; y3++){
                            for(int z3 = 0; z3 < 3; z3++){
                                if(currentCheckStructure && !world.getBlock(x1+x2-x3, y1+y3, z1+z2-z3).equals(ModBlocks.blockLaunchPad)){
                                    currentCheckStructure = false;
                                }
                            }
                        }
                    }

                    if(currentCheckStructure){
                        for(int x3 = 0; x3 < 3; x3++){
                            for(int y3 = 0; y3 < 1; y3++){
                                for(int z3 = 0; z3 < 3; z3++){
                                    world.setBlockMetadataWithNotify(x1+x2-x3, y1+y3, z1+z2-z3, x3*3+z3+1, 2);
                                }
                            }
                        }
                    }
                }
                mStructure = currentCheckStructure;
            }
        }
        if(mStructure) return true;

        if(world.getBlockMetadata(x1, y1, z1) > 0) world.setBlockMetadataWithNotify(x1, y1, z1, 0, 3);

        return false;
    }

I am not working on 1.7.10 I am on 1.8 that code is from a old failed project i have. what code do you need to help I am not new to modding but I may have tried to learn to many programming languages at one time I am also 13 and want to be a software engineer. If there any way you can help Thanks

This is so frustrating. I have been trying to figure this out for months.

Hello I am trying to make a multi block for my mod...

Pls excuse me for being thick, but what do you mean by "multiblock"? Are you inventing a new golem? If so, then familiarize yourself with (and imitate) how the vanilla code makes golems.