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Add [set_variable]min|max= to calculate an extremum value

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Celtic Minstrel 2020-12-28 15:55:05 -05:00
parent 927fcbfb47
commit 4b2599864a
1 changed files with 18 additions and 0 deletions
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18
data/lua/wml/set_variable.lua
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@ -124,6 +124,24 @@ function wesnoth.wml_actions.set_variable(cfg, variables)
local ivalue, fvalue = math.modf(tonumber(cfg.fpart) or 0)
variables[name] = fvalue
end
-- similarly, min and max operate on the list assigned to the variable
-- and do not consider value already contained in the variable
if cfg.min then
local values = cfg.min:split()
for i = 1, #values do
values[i] = tonumber(values[i])
end
variables[name] = math.min(table.unpack(values))
end
if cfg.max then
local values = cfg.max:split()
for i = 1, #values do
values[i] = tonumber(values[i])
end
variables[name] = math.max(table.unpack(values))
end
if cfg.string_length ~= nil then
variables[name] = string.len(tostring(cfg.string_length))