Standard Trees Overwriting my trees

[rob_bb]

Hi

 

I have a class generating trees.  The problem is it appears my tree is being spawned, then other trees in the forest or jungle are being spawned, and their leaf blocks are replacing my tree trunk blocks. 

 

How would I have it the other way around, that is my tree trunk growing through the other trees leaves?

 

Is it about the order of the tree generators?  I am adding my class in preInit() with GameRegistry.registerWorldGenerator(new SmallTreeWorldGen());

 

Can I make my trees spawn last in a chunk?

[rob_bb]

The following fixed that issue 

 

@Override

    public boolean canBeReplacedByLeaves(World world, int x, int y, int z)

    {

        return false;

    }

 

 

But I still have an issues with vines replacing my trunk blocks.  See Image here http://s15.postimg.org/xgz4geyrv/vines.png