Disengage and Hack'n'Back can not be used when immobile

git-svn-id: http://svn.net-core.org/repos/t-engine4@5568 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/talents/techniques/field-control.lua

@@ -30,6 +30,7 @@ newTalent{
 	tactical = { ESCAPE = 2 },
 	requires_target = true,
 	action = function(self, t)
+		if self:attr("never_move") then game.logPlayer(self, "You can not do that currently.") return end
 		local tg = {type="hit", range=self:getTalentRange(t)}
 		local x, y, target = self:getTarget(tg)
 		if not x or not y or not target then return nil end

game/modules/tome/data/talents/techniques/mobility.lua

@@ -31,6 +31,7 @@ newTalent{
 	getDamage = function(self, t) return self:combatTalentWeaponDamage(t, 0.4, 1) end,
 	getDist = function(self, t) return 1 + math.ceil(self:getTalentLevel(t) / 2) end,
 	action = function(self, t)
+		if self:attr("never_move") then game.logPlayer(self, "You can not do that currently.") return end
 		local tg = {type="hit", range=self:getTalentRange(t)}
 		local x, y, target = self:getTarget(tg)
 		if not x or not y or not target then return nil end