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https://github.com/wesnoth/wesnoth
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46efcf15fd
The ai_helper functions are optimized for speed (as much as possible in a general setting) and do all the necessary tests. For example, get_units_with_attacks() checks both whether the unit has attacks left, and whether it has any attacks in the first place. (cherry-picked from commit 75843541bcf92e743b911ef49046c54a050e8a0f)
75 lines
2.4 KiB
Lua
75 lines
2.4 KiB
Lua
------- Village Hunt CA --------------
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-- Give extra priority to seeking villages if we have less than our share
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-- our share is defined as being slightly more than the total/the number of sides
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local AH = wesnoth.require "ai/lua/ai_helper.lua"
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local ca_village_hunt = {}
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function ca_village_hunt:evaluation(cfg, data)
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local start_time, ca_name = wesnoth.get_time_stamp() / 1000., 'village_hunt'
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if AH.print_eval() then AH.print_ts(' - Evaluating village_hunt CA:') end
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local villages = wesnoth.get_villages()
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if not villages[1] then
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if AH.print_eval() then AH.done_eval_messages(start_time, ca_name) end
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return 0
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end
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local my_villages = wesnoth.get_villages { owner_side = wesnoth.current.side }
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if #my_villages > #villages / #wesnoth.sides then
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if AH.print_eval() then AH.done_eval_messages(start_time, ca_name) end
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return 0
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end
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local allied_villages = wesnoth.get_villages { {"filter_owner", { {"ally_of", { side = wesnoth.current.side }} }} }
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if #allied_villages == #villages then
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if AH.print_eval() then AH.done_eval_messages(start_time, ca_name) end
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return 0
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end
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local units = AH.get_units_with_moves {
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side = wesnoth.current.side,
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canrecruit = false
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}
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if not units[1] then
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if AH.print_eval() then AH.done_eval_messages(start_time, ca_name) end
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return 0
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end
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if AH.print_eval() then AH.done_eval_messages(start_time, ca_name) end
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return 30000
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end
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function ca_village_hunt:execution(cfg, data)
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local unit = AH.get_units_with_moves({
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side = wesnoth.current.side,
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canrecruit = false
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})[1]
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if AH.print_exec() then AH.print_ts(' Executing village_hunt CA') end
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local villages = wesnoth.get_villages()
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local best_cost, target = AH.no_path
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for i,v in ipairs(villages) do
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if not wesnoth.match_location(v[1], v[2], { {"filter_owner", { {"ally_of", { side = wesnoth.current.side }} }} }) then
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local path, cost = wesnoth.find_path(unit, v[1], v[2], { ignore_units = true, max_cost = best_cost })
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if cost < best_cost then
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target = v
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best_cost = cost
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end
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end
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end
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if target then
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local x, y = wesnoth.find_vacant_tile(target[1], target[2], unit)
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local dest = AH.next_hop(unit, x, y)
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AH.checked_move(ai, unit, dest[1], dest[2])
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end
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end
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return ca_village_hunt
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