Change Block/Items IDs of an existing map

[Pyrolol]

Hello,

 

I'm currently moving to Forge with Minecraft 1.6.4 and I have some issues because when I opened my server I created items/blocks at really close ID of existings items, and now with minecraft updates I need to constantly change ID of new items/blocks. Before, I was using mcp so it was quite easy to change IDs but with forge it's not so I would like to know if there is any way to convert my map without any losse. (Blocks and items).

 

I'm using Spigot and my map is 3GB actually.

 

To override existing blocks i use that :

 

Block.blocksList[157] = null;

try
{
        Field field = Block.class.getDeclaredField("railActivator");
        field.setAccessible(true);
        Field modifiersfield = Field.class.getDeclaredField("modifiers");
        modifiersfield.setAccessible(true);
    	modifiersfield.setInt(field, field.getModifiers() & ~Modifier.FINAL);
        field.set(Block.class, new IronBlockRailPowered(251).setHardness(0.7F).setStepSound(Block.soundMetalFootstep).setUnlocalizedName("activatorRail").setTextureName("rail_activator"));

 

but I would like to get rid of this and move definitively blocks/items ID. Is there any way ?

 

Thank you

[Anon10W1z]

I'm not quite sure what you're trying to do. Are you seriously moving TO Forge 1.6.4? You should be on 1.7.10 by now.

[Pyrolol]

Yeah i'm moving to Forge 1.6.4 because i'm using mcp 1.6.4 right now. I can't update to 1.7.10 because I need Spigot 1.7.10 sources, so i'm waiting for Sponge Project to release their 1.8 versions. I need Forge to have more compatibility with others mods. The only problem I have is these IDs conflicts and that's why I need a way to modify my map to convert items/block with their new IDs.