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ai_helper.get_live_units: don't use filter_wml

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It’s slow, the new method is between 10 and 20 times faster.
This commit is contained in:
mattsc 2014-04-26 06:46:26 -07:00
parent eadfe4a990
commit 8e9780d606
1 changed files with 6 additions and 14 deletions
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20
data/ai/lua/ai_helper.lua
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@ -717,22 +717,14 @@ end
function ai_helper.get_live_units(filter)
-- Same as wesnoth.get_units(), except that it only returns non-petrified units
filter = filter or {}
local all_units = wesnoth.get_units(filter)
-- So that @filter in calling function is not modified (if it's a variable):
local live_filter = ai_helper.table_copy(filter)
local units = {}
for _,unit in ipairs(all_units) do
if (not unit.status.petrified) then table.insert(units, unit) end
end
local filter_not_petrified = { "not", {
{ "filter_wml", {
{ "status", { petrified = "yes" } }
} }
} }
-- Combine the two filters. Doing it this way around is much easier (always works, no ifs required),
-- but it means we need to make a copy of the filter above, so that the original does not get changed
table.insert(live_filter, filter_not_petrified)
return wesnoth.get_units(live_filter)
return units
end
function ai_helper.get_units_with_moves(filter)