Quote from: Kevin on 2009-04-24, 16:35:19
An example to illustrate the question:
A Tyrannosaurus Rex (standing orders always an unmodified "Close"), standing by the edge of a forest, is hungrily eyeing two potential opponents. Measuring the corner-to-corner distance per the standard rules, one opponent is 10 inches away across an open field. The other is 9.5 inches away, buried deep in the forest (-3 MC for large creatures). The one in the forest is "closer," but it would take the T-Rex 6 turns to reach it, as opposed to 2 turns to reach the opponent across the field.
Which unit does the T-Rex move toward?
This is (I think) one of the gray areas of the rules -- I'm fairly certain that the answer is, "You choose." If the nearest enemy by conventional measure would take more turns to reach than another enemy unit due to terrain, friendly units in the way, etc., you may apply the indirect path rule and choose as your nearest enemy whatever enemy unit takes the fewest turns to reach.
1. Nearest in my terms would be how many turns would it take to get to the enemy unit.
2. Another discriminator is the distance into the woods the enemy unit is located. If it is greater than 2.5", the cut off for visibility for missile fire, I say that it is out of sight, and the unit in the open is the closest.
3. A unit on unmodified "Close" is assumed to be driven by visual stimulation, unless otherwise indicated, and thus focusing on the visible enemy to meet its move requirements.
*Addition
This needs to be comprehensively combined with "Clearly Visiable" p.21- If you can draw a line from the front center point of your unit to any part of an enemy unit (that is in your unit’s front arc) without passing through any other units or
line of sight blocking terrain, then the enemy unit is clearly visible; Enemy Unit as Objective p.10 (because if a Standing Order can be Modified, the enemy unit can be anywhere on the map) and Nearest Enemy, p.18- Only enemies in a unit’s front arc can be the nearest enemy (because if you allow Enemy Unit as Objective change as modifier this Orientation may be violated, i.e. for being outside front arc).
Exception: If there are no enemy units in the front arc, then units outside the front arc may be the nearest enemy.
P.19-20 - For a Moving Unit with the Close Standing Order- The nearest enemy is the enemy unit for which the following measurement is the shortest:
From — the corner on the front of the closing unit that is farthest from the enemy unit.
To — the corresponding corner of the facing side on the enemy unit.
Note: If the path between the closing unit and the nearest enemy unit is blocked,
determine if it would take fewer turns to engage a different enemy unit (assuming the enemy units do not move). If so, that enemy unit becomes the nearest enemy.
Found another bit of rule info to add to your considerations:
Rules v.2.4, p.21
Clearly Visible
A unit may only engage an enemy unit if the enemy unit was clearly visible at the start of the turn. If you can draw a line from the front center point of your unit to any part of an enemy unit (that is in your unit’s
front arc) without passing through any other units or line of sight blocking terrain, then the enemy unit is clearly visible.
So logic would ask if your unit could not engage due to line of sight blocking terrain, then how should this affect the overall formula for Nearest Enemy?
So for this example, let us say that the Nearest Enemy unit was fewer movement turns closer to your always Close unit but that it could not Engage due to not being Clearly Visible.
The current formula would have you moving to the not visible enemy unit and perhaps never being able to Engage.
So some regard for being in Line of Sight needs to be addressed.
& Line of Sight Blocking Terrain.