implement unit patrolling

[andy5995]

There should be a "patrol" mode for units

• press hotkey (p) or icon when units are selected
• select 2 or more points on the map
• press hotkey (p) again
• units move between selected points in attack mode
• if they see enemy units, then attack. Afterward, resume patrol

Command queuing is already a feature of the game using the shift key. One might be able to use the command queuing to implement unit patrolling.

[Jammyjamjamman]

this was implemented in GAE, maybe we can look in there?

[andy5995]

When was the GAE code last updated? You think we could just merge in some patrol functions? :) A good idea, actually, if it's possible.