[freeciv-ai] Question about danger

[Jordi Negrevernis i Font <jorneg@xxxxxxxxxxx>]

   I want to apply bodyguard code to settlers - this is a TODO entry - 
but i don't find a function to asses danger on a location.
   I looked at enemy_at ( or something like this ) but this does not 
take into count the borders of the nation or the enemy units not 
adjacent to tile, or the distance of the enemy.
   Do you know another function or i must make myself?

   Thanks