bug in AABBTree.cpp

[jksr]

the implementation of insertLeaf has bug:

in line 132
AABBNode& leafNode = _nodes[leafNodeIndex];

but in line 192
unsigned newParentIndex = allocateNode();

if AABBNode pool gets resized in ln192, the reference in ln132 will cause problem.

It's better to change all this kind of "AABBnode&"s to "_nodes[index]" to avoid this kind of pitfall.

Anyway, thank you very much for the AABBTree code

[JamesRandall]

Thanks for that - I'll investigate and take a look. Until writing this I'd really not done much C++ for years - think this project is the most I've written by far in over 10 years, and my goodness C++ has changed too!

If you notice anything else please do let me know (I'm not writing C++ regularly but always keen to keep these things up and learn).