Is there a way to have block(and possibly items) be nonexistent when certain mods are present? An example would be disabling Copper ore and Tin ore (to cut down on block ids and keep from overloading the world gen with repeat ores) if IC2 or RedPower World are installed

try using the isModLoader function from ModLoader checking is a mod is loaded...

I tried that... When it is used I can't gain access to the blocks to use them...

I tried that... When it is used I can't gain access to the blocks to use them...

 

Try doing this:

 

Block.blockList[iC2COPPERBLOCKID] = null;

 

You just nullified their block Something like that should work. Not sure though. I don't get why you would want to disable their blocks.

lol I want to disable my blocks not theirs

Make it configurable, and determine if you should gen based on if either of those mods exist.

Make it configurable, and determine if you should gen based on if either of those mods exist.

Didn't think of that for the world gen...

Maybe check if IC2 is generating ores and if it is don't generate those ores? That's what Forestry does...

Maybe check if IC2 is generating ores and if it is don't generate those ores? That's what Forestry does...

How would I do that?

Quick update got the world gen turned of if certain mods are present now just need to know how to disable my blocks...

Just don't register them on load and they vanish. Use an if statement with block registers in them to determine if the block should be loaded or ignored. Should work just fine

like:

if (b == false)
{
ModLoader.registerBlock(MYOREHERE);
}

so when b is true it doesn't load?

I think (not 100%) i got the results I wanted

Try doing this:

 

Block.blockList[iC2COPPERBLOCKID] = null;

 

No, don't.

 

Doing that to someone else's block looks like a good way to get NullPointerExceptions.

It is!