Add healer support micro AI to experimental multiplayer AI

changelog

@@ -11,6 +11,7 @@ Version 1.11.1+svn:
      * Fix bug when playing on maps with a turn limit
      * Fix bug handling regeneration
      * Minor improvements in switching between castles
+     * Add healer support micro AI to improve healer use
    * New [micro_ai] tag, 18 different Micro AIs, and 14 test scenarios
      * This includes AIs for 7 different animal behaviors, bottleneck defense,
        2 different guardians and a coward, healer support, lurkers,

data/ai/ais/ai_generic-rush.cfg

@@ -54,5 +54,12 @@
             evaluation="return (...):spread_poison_eval()"
             execution="(...):spread_poison_exec()"
         [/candidate_action]
+        [candidate_action]
+            engine=lua
+            name=move_to_enemy
+            max_score=95000
+            evaluation="return (...):place_healers_eval()"
+            execution="(...):place_healers_exec()"
+        [/candidate_action]
     [/stage]
 [/ai]

data/ai/lua/generic-rush_engine.lua

@@ -9,6 +9,7 @@ return {
         local AH = wesnoth.require "ai/lua/ai_helper.lua"
         local BC = wesnoth.require "ai/lua/battle_calcs.lua"
         local LS = wesnoth.require "lua/location_set.lua"
+        local HS = wesnoth.require("ai/micro_ais/ais/mai_healer_support_engine.lua").init(ai)
 
         ------ Stats at beginning of turn -----------
 
@@ -69,7 +70,8 @@ return {
                     formula = '($this_unit.moves = $this_unit.max_moves) and ($this_unit.hitpoints = $this_unit.max_hitpoints)'
                 }[1]
             if not leader then
-                -- CA is irrelevant if no leader
+                -- CA is irrelevant if no leader or the leader may have moved from another CA
+                self.data.leader_target = nil
                 AH.done_eval_messages(start_time, ca_name)
                 return 0
             end
@@ -465,6 +467,17 @@ return {
             self.data.attack = nil
         end
 
+        generic_rush.healer_support_eval = HS.healer_support_eval
+
+        function generic_rush:place_healers_eval()
+            if generic_rush:healer_support_eval() > 0 then
+                return 95000
+            end
+            return 0
+        end
+
+        generic_rush.place_healers_exec = HS.healer_support_exec
+
         return generic_rush
     end
 }

players_changelog

@@ -15,6 +15,7 @@ Version 1.11.1+svn:
      * Fix bug when playing on maps with a turn limit.
      * Fix bug handling regeneration.
      * Minor improvements in switching between castles.
+     * Add healer support micro AI to improve healer use.
    * New [micro_ai] tag, 18 different Micro AIs, and 14 test scenarios
      * This includes AIs for 7 different animal behaviors, bottleneck defense,
        2 different guardians and a coward, healer support, lurkers,