repair bad ents, do not create them as undead.

scripts/eressea/ents.lua

@@ -1,7 +1,7 @@
 local function create_ents(r, number)
     local f = get_faction(666)
     if f~=nil and number>0 then
-        u = unit.create(f, r, number)
+        u = unit.create(f, r, number, "ent")
         u.name = "Wütende Ents"
         u:set_skill("perception", 2)
         
@@ -13,11 +13,21 @@ local function create_ents(r, number)
     return nil
 end
 
+local function repair_ents(r)
+    for u in r.units do
+        if u.faction.id==666 and u.race == "undead" and u.name == "Wütende Ents" then
+            print("ent repair", u)
+            u.race = "ent"
+        end
+    end
+end
+
 local ents = {}
 
 function ents.update()
     local r
     for r in regions() do
+        repair_ents(r)
         if r:get_flag(0) then -- RF_CHAOTIC
             if r.terrain == "plain" and r:get_resource("tree")==0 then
                 if math.random(3)==1 then