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Lua AI: speed up battle_calcs.battle_outcome in extreme cases

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The method used in the battle_outcome() function is somewhat simplified compared to the default engine calculation and faster in the vast majority of cases, but it can become extremely slow when the combined number of strikes of the attacker and defender is very large.
This commit is contained in:
mattsc 2022-08-29 06:58:13 -07:00
parent f1c550b363
commit 15d1fb7938
1 changed files with 10 additions and 0 deletions
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10
data/ai/lua/battle_calcs.lua
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@ -670,6 +670,16 @@ function battle_calcs.battle_outcome(attacker, defender, cfg, cache)
def_strikes = math.floor(def_strikes * defender.hitpoints / defender.max_hitpoints)
end
-- At around 15 combined strikes, wesnoth.simulate_combat becomes faster
if (att_strikes + def_strikes > 14) then
if (def_weapon == 0) then def_weapon = nil end
if (att_weapon == 0) then
return wesnoth.simulate_combat(attacker, defender, def_weapon)
else
return wesnoth.simulate_combat(attacker, att_weapon, defender, def_weapon)
end
end
-- Maximum number of hits that either unit can survive
local att_max_hits = math.floor((attacker.hitpoints - 1) / def_damage)
if (att_max_hits > def_strikes) then att_max_hits = def_strikes end