OpenRA/OpenRA — pull request #2235 by JamesDunne (2012-06-19 19:57:34+00:00)
Title: Fix to have units avoid projectile friendly fire.

When I control one massive group comprising of both long-range artillery and short-range infantry, I find that the infantry is quite suicidal by default and is not interested in self-preservation against friendly-fire from the artillery who are all attacking the same target. This patch attempts to resolve that by having the friendly-firing unit notify other units near the destination point of the projectile. Their reaction is to move the shortest distance away from ground-zero to relative safety, depending on how large the blast radius of the projectile is.