TRoW S15: add new attack and retreat AI candidate actions
The attack CA is very aggressive and almost exclusively tries to deal maximum damage, but will not execute an attack if therre's a chance of dying for the attacker. The retreat CA is the same as that used in the Experimental AI.
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3 changed files with 162 additions and 13 deletions
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@ -0,0 +1,67 @@
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local AH = wesnoth.require "ai/lua/ai_helper.lua"
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local ca_aggressive_attack_no_suicide = {}
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function ca_aggressive_attack_no_suicide:evaluation(ai, cfg, self)
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local units = wesnoth.get_units {
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side = wesnoth.current.side,
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formula = '$this_unit.attacks_left > 0'
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}
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--print('#units', #units)
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if (not units[1]) then return 0 end
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-- Get all possible attacks
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local attacks = AH.get_attacks(units, { include_occupied = true })
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--print('#attacks', #attacks)
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if (not attacks[1]) then return 0 end
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-- Now find the best of the possible attacks
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local max_rating, best_attack = -9e99, {}
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for i, att in ipairs(attacks) do
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local attacker = wesnoth.get_unit(att.src.x, att.src.y)
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local defender = wesnoth.get_unit(att.target.x, att.target.y)
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local attacker_dst = wesnoth.copy_unit(attacker)
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attacker_dst.x, attacker_dst.y = att.dst.x, att.dst.y
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local att_stats, def_stats = wesnoth.simulate_combat(attacker_dst, defender)
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if (att_stats.hp_chance[0] == 0) then
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local rating = def_stats.hp_chance[0] * 100
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local attacker_damage = attacker.hitpoints - att_stats.average_hp
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local defender_damage = defender.hitpoints - def_stats.average_hp
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rating = rating + defender_damage
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rating = rating - attacker_damage / 10.
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-- Also, take strongest unit first
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rating = rating + attacker.hitpoints / 10.
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--print('rating:', rating, attacker.id, defender.id)
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if (rating > max_rating) then
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max_rating = rating
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best_attack = att
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end
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end
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end
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if (max_rating > -9e99) then
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self.data.attack = best_attack
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return 100000
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end
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return 0
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end
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function ca_aggressive_attack_no_suicide:execution(ai, cfg, self)
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local attacker = wesnoth.get_unit(self.data.attack.src.x, self.data.attack.src.y)
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local defender = wesnoth.get_unit(self.data.attack.target.x, self.data.attack.target.y)
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AH.movefull_outofway_stopunit(ai, attacker, self.data.attack.dst.x, self.data.attack.dst.y)
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ai.attack(attacker, defender)
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self.data.attack = nil
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end
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return ca_aggressive_attack_no_suicide
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31
data/campaigns/The_Rise_Of_Wesnoth/ai/ca_retreat.lua
Normal file
31
data/campaigns/The_Rise_Of_Wesnoth/ai/ca_retreat.lua
Normal file
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@ -0,0 +1,31 @@
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local R = wesnoth.require "ai/lua/retreat.lua"
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local AH = wesnoth.require "ai/lua/ai_helper.lua"
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local retreat = {}
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function retreat:evaluation(ai, cfg, self)
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local units = wesnoth.get_units {
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side = wesnoth.current.side,
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formula = '$this_unit.moves > 0'
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}
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--print('#units', #units)
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if (not units[1]) then return 0 end
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local unit, dst, enemy_threat = R.retreat_injured_units(units)
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if unit then
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self.data.retreat_unit = unit
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self.data.retreat_dst = dst
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return 101000
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end
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return 0
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end
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function retreat:execution(ai, cfg, self)
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AH.movefull_outofway_stopunit(ai, self.data.retreat_unit, self.data.retreat_dst[1], self.data.retreat_dst[2])
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self.data.retreat_unit, self.data.retreat_dst = nil, nil
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end
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return retreat
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@ -52,10 +52,27 @@
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recruit=Elvish Archer, Elvish Fighter, Elvish Scout, Elvish Shaman, Elvish Hero, Elvish Marksman, Elvish Druid
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[ai]
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{NO_SCOUTS}
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recruitment_ignore_bad_movement=yes
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recruitment_pattern=scout,fighter,archer,fighter, archer, healer
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aggression=1.0
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caution=0.0
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recruitment_pattern=fighter,archer,fighter,archer,healer
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=retreat
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id=retreat
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max_score=101000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_retreat.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=aggressive_attack_no_suicide
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id=aggressive_attack_no_suicide
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max_score=100000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_aggressive_attack_no_suicide.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_DELETE_CANDIDATE_ACTION 2 main_loop combat}
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[/ai]
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{FLAG_VARIANT wood-elvish}
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[/side]
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@ -79,10 +96,27 @@
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recruit=Dwarvish Fighter, Dwarvish Thunderer, Dwarvish Guardsman, Dwarvish Steelclad, Dwarvish Thunderguard
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[ai]
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{NO_SCOUTS}
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recruitment_ignore_bad_movement=yes
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recruitment_pattern=fighter,fighter,fighter,mixed fighter
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aggression=1.0
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caution=0.0
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recruitment_pattern=fighter,archer,fighter,archer,healer
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=retreat
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id=retreat
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max_score=101000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_retreat.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=aggressive_attack_no_suicide
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id=aggressive_attack_no_suicide
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max_score=100000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_aggressive_attack_no_suicide.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_DELETE_CANDIDATE_ACTION 2 main_loop combat}
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[/ai]
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{FLAG_VARIANT knalgan}
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[/side]
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@ -105,10 +139,27 @@
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recruit=Elvish Archer, Elvish Fighter, Elvish Scout, Elvish Shaman
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[ai]
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{NO_SCOUTS}
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recruitment_ignore_bad_movement=yes
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recruitment_pattern=scout,fighter,archer,fighter, archer, healer
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aggression=1.0
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caution=0.0
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recruitment_pattern=fighter,archer,fighter,archer,healer
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=retreat
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id=retreat
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max_score=101000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_retreat.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_ADD_CANDIDATE_ACTION 2 main_loop (
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[candidate_action]
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engine=lua
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name=aggressive_attack_no_suicide
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id=aggressive_attack_no_suicide
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max_score=100000
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location="campaigns/The_Rise_Of_Wesnoth/ai/ca_aggressive_attack_no_suicide.lua"
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[/candidate_action]
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)}
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{MODIFY_AI_DELETE_CANDIDATE_ACTION 2 main_loop combat}
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[/ai]
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{FLAG_VARIANT long}
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[/side]
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@ -465,7 +516,7 @@ _"Notes:"+"</big></span>"
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{NEW_GOLD_CARRYOVER $anl_carryover}
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next_scenario=16_The_Kalian
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[/endlevel]
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{CLEAR_VARIABLE anl_carryover}
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[/event]
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[/scenario]
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