Now a final challenge: cows on a road near a steep cliff don't want to climb but in case they approach the cliff they need to "reclimb" before falling down..so how can they do what they don't normally like to do ?
The way I solved it is when climbing too much don't reverse completely direction otherwise it will result in a steep downhill walk which is also to be avoided...so let them do a lesser reverse (slightly more than 90 deg)
and then re-evaluate wether they're gradually descending or steeply descending. In any case it should result in some descend, possible an acceptable one.
If they are descending too fast do another near 90 deg turn ..and so on...sooner or later they will hopefully walk in goat like fashion either up or down the cliff to finally reach flat ground or water and not get trapped forever halfway on the cliff.
So if everything goes fine they will slowly descend towards the lake shore, hopefully without anyone falling from the cliff or climbing up the mountain
yes ! except a few that got lost and a few still grappling with the cliff... So I need to add a "camera push" ..push the cow towards the right direction by approaching with the camera