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ExpAI: make recruiting work with all keys of [damage] special

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Previously there would be an error, and subsequently no recruiting, if
the multiply= key was not set.
This commit is contained in:
mattsc 2013-06-13 07:51:06 -07:00
parent 81aac64fc2
commit bf3517d1e4
1 changed files with 22 additions and 5 deletions
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27
data/ai/lua/generic-recruit_engine.lua
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@ -113,7 +113,7 @@ return {
for attack in H.child_range(wesnoth.unit_types[attacker.type].__cfg, "attack") do
local defense = defender_defense
local poison = false
local damage_multiplier = 1
local damage_multiplier,damage_add,damage_value = 1, 0
for special in H.child_range(attack, 'specials') do
local mod
@ -146,12 +146,28 @@ return {
-- Handle backstab, charge
mod = H.get_child(special, 'damage')
if mod and mod.active_on ~= "defense" then
if mod.value then
if mod.cumulative then
if mod.value > attack.damage then
damage_value = mod.value
end
else
damage_value = mod.value
end
elseif mod.add then
damage_add = mod.add
elseif mod.sub then
damage_add = - mod.sub
elseif mod.multiply then
damage_multiplier = mod.multiply
elseif mod.divide then
damage_multiplier = 1. / mod.divide
end
if mod.backstab then
-- Assume backstab happens on only 1/2 of attacks
-- TODO: find out what actual probability of getting to backstab is
damage_multiplier = damage_multiplier*(mod.multiply*0.5 + 0.5)
else
damage_multiplier = damage_multiplier*mod.multiply
damage_multiplier = damage_multiplier * 0.5 + 0.5
damage_add = damage_add * 0.5
end
end
end
@ -179,7 +195,8 @@ return {
resistance = 50
end
end
local base_damage = attack.damage*resistance*damage_multiplier
local base_damage = (attack.damage * damage_multiplier + damage_add) * resistance
if damage_value then base_damage = damage_value * resistance end
if (resistance > 100) then
base_damage = base_damage-1
end