# A\* — How to not test diagonal nodes?

**URL:** <https://forum.kirupa.com/t/a-how-to-not-test-diagonal-nodes/324138>\
**Category:** flash\
**Created:** [August 4, 2011, 8:50am UTC](https://forum.kirupa.com/t/a-how-to-not-test-diagonal-nodes/324138 "2011-08-04T08:50:12Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![m\_elemental](https://avatars.discourse-cdn.com/v4/letter/m/e274bd/32.png) [@m\_elemental](https://forum.kirupa.com/u/m_elemental)\
**Post date:** [August 4, 2011, 8:50am UTC](https://forum.kirupa.com/t/a-how-to-not-test-diagonal-nodes/324138/1 "2011-08-04T08:50:12Z")

</div>

Does anyone know how to prevent diagonal nodes from being tested when using A\* pathfinding? My character poses are only four way and it seems a waste of processing power to even bother checking the diagonals.

Thanks 🙂