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AI castle_switch: reconsider CA score when using saved data

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If the units previously on the keep moved off, we don't have to use the low score any more.
This commit is contained in:
mattsc 2019-12-05 07:27:58 -08:00
parent 18b5d5159e
commit 917f7ef9a5
1 changed files with 35 additions and 23 deletions
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58
data/ai/lua/ca_castle_switch.lua
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@ -6,6 +6,9 @@ local M = wesnoth.map
local CS_leader_score
-- Note that CS_leader and CS_leader_target are also needed by the recruiting CA, so they must be stored in 'data'
local high_score = 195000
local low_score = 15000
local function get_reachable_enemy_leaders(unit, avoid_map)
-- We're cheating a little here and also find hidden enemy leaders. That's
-- because a human player could make a pretty good educated guess as to where
@ -27,6 +30,32 @@ local function get_reachable_enemy_leaders(unit, avoid_map)
return enemy_leaders
end
local function other_units_on_keep(leader)
-- if we're on a keep, wait until there are no movable non-leader units on the castle before moving off
local leader_score = high_score
if wesnoth.get_terrain_info(wesnoth.get_terrain(leader.x, leader.y)).keep then
local castle = AH.get_locations_no_borders {
{ "and", {
x = leader.x, y = leader.y, radius = 200,
{ "filter_radius", { terrain = 'C*,K*,C*^*,K*^*,*^K*,*^C*' } }
}}
}
local should_wait = false
for i,loc in ipairs(castle) do
local unit = wesnoth.units.get(loc[1], loc[2])
if unit and (unit.side == wesnoth.current.side) and (not unit.canrecruit) and (unit.moves > 0) then
should_wait = true
break
end
end
if should_wait then
leader_score = low_score
end
end
return leader_score
end
local ca_castle_switch = {}
function ca_castle_switch:evaluation(cfg, data, filter_own)
@ -57,6 +86,11 @@ function ca_castle_switch:evaluation(cfg, data, filter_own)
local avoid_map = AH.get_avoid_map(ai, nil, true)
if data.CS_leader and wesnoth.sides[wesnoth.current.side].gold >= cheapest_unit_cost then
-- If the saved score is the low score, check whether there are still other units on the keep
if (CS_leader_score == low_score) then
CS_leader_score = other_units_on_keep(data.CS_leader)
end
-- make sure move is still valid
local path, cost = AH.find_path_with_avoid(data.CS_leader, data.CS_leader_target[1], data.CS_leader_target[2], avoid_map)
local next_hop = AH.next_hop(data.CS_leader, nil, nil, { path = path, avoid_map = avoid_map })
@ -169,29 +203,7 @@ function ca_castle_switch:evaluation(cfg, data, filter_own)
end
end
-- if we're on a keep, wait until there are no movable non-leader units on the castle before moving off
local leader_score = 195000
if wesnoth.get_terrain_info(wesnoth.get_terrain(leader.x, leader.y)).keep then
local castle = AH.get_locations_no_borders {
{ "and", {
x = leader.x, y = leader.y, radius = 200,
{ "filter_radius", { terrain = 'C*,K*,C*^*,K*^*,*^K*,*^C*' } }
}}
}
local should_wait = false
for i,loc in ipairs(castle) do
local unit = wesnoth.units.get(loc[1], loc[2])
if unit and (unit.side == wesnoth.current.side) and (not unit.canrecruit) and (unit.moves > 0) then
should_wait = true
break
end
end
if should_wait then
leader_score = 15000
end
end
local leader_score = other_units_on_keep(leader)
best_score = best_score + leader_score
if (best_score > overall_best_score) then