[Bug 1.1 Beta] Splash is always set vector(0,0,1) - LOGGED

Hi,

If you set a river with a small hill, your splash will not be always parallel to ground and do not take into account the angle of the river.

In void Splash::spawnExplosion(), you hardcoded the vector for the normal, may be you can pass that as a parameter and use the normal of the point ?

Thanks,