Changes

Certain machines possess shields that protect an area around them. Any creatures or objects within this area gain the shield's [[SRD:Deflection Bonus|deflection]] bonus to their [[SRD:Armor Class|Armor Class]] against attacks originating from outside the shield. As long as the shield has [[SRD:Hit Points|hit points]] remaining, it stops objects and energy outside it from passing through, like a ''[[SRD:Wall of Force|wall of force]]''. The same restriction does not apply to objects and energy inside it, which can pass through unimpeded. Things that can pass through shields can also pass through perimeter shields (like [[SRD:Sonic Effect|sonic]] energy).  The effective [[SRD:Armor Class|AC]] of a perimeter shield itself is 10 plus the [[SRD:Deflection Bonus|deflection]] bonus it grants. Any object within the area of the perimeter shield with an [[SRD:Armor Class|AC]] smaller than that of the perimeter shield instead uses the shield's [[SRD:Armor Class|AC]] against attacks originating from outside the perimeter shield.