Here my attempt to create some kind of (2D-) wind animation with the build in material editor using the texture coordinates.
But it’s more a test/gadget because to calculate the wind per fragment is slow and a waste of render time, normally this should be done per vertex but the bge has no node editor for vertex shader. 
There are two versions:
One for UPBGE using the time node.
wind_upbge.blend (836 KB)
And one that works also in bge(/upbge). It use a animated lamp energy value to animate the texture but that is just a workaround and not very flexible.
wind.blend (832 KB)
