I have a block that is essentially vines. I was wondering how to make it so that they generate in the world on the sides of trees?

I would just make a world generator for your vines, and right before the setBlock function add a test to make sure one of the blocks next to it is wood. Here's a descent tutorial on adding worldgen:

http://www.minecraftforge.net/wiki/Adding_World_Generation

I would just make a world generator for your vines, and right before the setBlock function add a test to make sure one of the blocks next to it is wood. Here's a descent tutorial on adding worldgen:

http://www.minecraftforge.net/wiki/Adding_World_Generation

How do i check for neighboring blocks? kind of a noob...

~bump~?

Under generate, just do:

boolean shouldPlace = false;

if(world.getBlock(xCoord + 1, yCoord, zCoord) == Blocks.wood)/** Or whatever block **/{
shouldPlace = true;
}
}


if(world.getBlock(xCoord, yCoord, zCoord + 1) == Blocks.wood)/** Or whatever block **/{
shouldPlace = true;
}
}
if(world.getBlock(xCoord - 1, yCoord, zCoord) == Blocks.wood)/** Or whatever block **/{
shouldPlace = true;
}
}


if(world.getBlock(xCoord, yCoord, zCoord - 1) == Blocks.wood)/** Or whatever block **/{
shouldPlace = true;
}
if(shouldPlace){
world.setBlock(yourBlockName); //Or whatever function to generate the block
}

Keep in mind I just did this on the fly and you WILL have to modify it a bit, but you should be able to handle that...

Another thing, the thing you're trying to do will be inherently laggy because it will likely have to run this code for EVERY block (or some constraint of blocks, like every block between y = 50 and y = 90 or whatever). This would apply to almost any solution for this though. (Unless you want the vines to only generate on your custom trees, in which case you could just make the vines generate as part of the tree and it would make about 8039x more sense then this )

More gratuitous cut&paste...

Will this nonsense ever end?

More gratuitous cut&paste...

Will this nonsense ever end?

 

Nope.. .

---------

 

@chimera27,

 

I'm pretty sure if he puts in for example:

if(world.getBlock(xCoord - 1, yCoord, zCoord) == Blocks.leaves)

 

It will render this vines nearly on every tree.