Decreased the cost of the Giant Rat to 6g...

...and added a new custom movetype for it.

changelog

@@ -38,6 +38,8 @@ Version 1.9.8+svn:
    * Added "chat_message_aging" advanced preference to allow setting the
      ingame chat message aging interval
  * Unit changes and balancing:
+   * Decreased cost of Giant Rat from 13 to 6.
+   * Various changes to the defense, movement and resistances of the Giant Rat.
    * Increased the XP requirements of the Arif from 40 to 47
    * Increased the cost of the Falcon from 10 to 12
    * Decreased the beak and claw attack of the Falcon by one each to 2-3 and 5-1

data/core/units.cfg

@@ -1312,6 +1312,50 @@ While undead lords arrived on the Great Continent in considerable numbers only i
         [/resistance]
     [/movetype]
 
+    [movetype]
+        name=rodentfoot
+        [movement_costs]
+            shallow_water=3
+            reef=2
+            swamp_water=2
+            flat=1
+            sand=2
+            forest=1
+            hills=2
+            mountains=3
+            village=1
+            castle=1
+            cave=1
+            frozen=2
+            fungus=2
+        [/movement_costs]
+
+        [defense]
+            shallow_water=80
+            reef=70
+            swamp_water=60
+            flat=50
+            sand=50
+            forest=50
+            hills=50
+            mountains=40
+            village=50
+            castle=50
+            cave=40
+            frozen=50
+            fungus=50
+        [/defense]
+
+        [resistance]
+            blade=100
+            pierce=100
+            impact=100
+            fire=100
+            cold=90
+            arcane=80
+        [/resistance]
+    [/movetype]
+
 #define DRAKEFLY_MOVE
     [movement_costs]
         deep_water=2

data/core/units/monsters/Giant_Rat.cfg

@@ -6,15 +6,15 @@
     image="units/monsters/giant-rat.png"
     ellipse="misc/ellipse-nozoc"
     hitpoints=15
-    movement_type=smallfoot
+    movement_type=rodentfoot
     movement=4
     experience=14
     level=0
     alignment=chaotic
     advances_to=null
     {AMLA_DEFAULT}
-    cost=13
-    usage=scout
+    cost=6
+    usage=fighter
     description= _ "Given an adequate supply of food, some rats can grow to truly impressive sizes. They can also grow quite aggressive."
     {DEFENSE_ANIM "units/monsters/giant-rat-defend-2.png" "units/monsters/giant-rat-defend-1.png" {SOUND_LIST:BAT_HIT} }
     die_sound=bat-flapping.wav

players_changelog

@@ -19,6 +19,8 @@ Version 1.9.8+svn:
        for agriculture not getting counted if the research order wasn't changed
        (bug #16477)
  * Unit changes and balancing:
+   * Decreased cost of Giant Rat from 13 to 6.
+   * Various changes to the defense, movement and resistances of the Giant Rat.
    * Increased the XP requirements of the Arif from 40 to 47
    * Increased the cost of the Falcon from 10 to 12
    * Decreased the beak and claw attack of the Falcon by one each to 2-3 and 5-1