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-- This file defines some methods on Lua numbers, bools, actions, nil, and coroutines
require "text"
number_mt =
__type: "a Number"
__len: => @
as_lua: tostring
as_nomsu: tostring
as_text: tostring
as_a_number: => @
rounded: => math.floor(@ + .5)
rounded_down: math.floor
rounded_up: math.ceil
to_the_nearest: (rounder)=> rounder * math.floor(@/rounder + 0.5)
base16: => ("%X")\format(@)
number_mt.__index = number_mt
debug.setmetatable 0, number_mt
bool_mt =
__type: "a Boolean"
__len: => @ and 1 or 0
as_lua: tostring
as_nomsu: => @ and "yes" or "no"
as_text: => @ and "yes" or "no"
_and: (cond)=> @ and cond
_or: (cond)=> @ or cond
xor: (cond)=> @ == (not cond)
bool_mt.__index = bool_mt
debug.setmetatable true, bool_mt
fn_mt =
__type: "an Action"
as_text: => (tostring(@)\gsub("function", "Action"))
__add: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) + other(...))
elseif type(@) == 'function' then (...)-> (@(...) + other)
else (...)-> (@ + other(...))
__sub: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) - other(...))
elseif type(@) == 'function' then (...)-> (@(...) - other)
else (...)-> (@ - other(...))
__mul: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) * other(...))
elseif type(@) == 'function' then (...)-> (@(...) * other)
else (...)-> (@ * other(...))
__div: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) other(...))
elseif type(@) == 'function' then (...)-> (@(...) other)
else (...)-> (@ other(...))
__mod: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) % other(...))
elseif type(@) == 'function' then (...)-> (@(...) % other)
else (...)-> (@ % other(...))
__band: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) and other(...))
elseif type(@) == 'function' then (...)-> (@(...) and other)
else (...)-> (@ and other(...))
__bor: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) or other(...))
elseif type(@) == 'function' then (...)-> (@(...) or other)
else (...)-> (@ or other(...))
__bxor: (other)=>
if type(@) == 'function' and type(other) == 'function'
(...)-> (@(...) != other(...))
elseif type(@) == 'function' then (...)-> (@(...) != other)
else (...)-> (@ != other(...))
fn_mt.__index = fn_mt
debug.setmetatable (->), fn_mt
co_mt =
__type: "a Coroutine"
as_text: => (tostring(@)\gsub("thread", "Coroutine"))
co_mt.__index = co_mt
debug.setmetatable(coroutine.create(->), co_mt)
nil_mt =
__type: "Nil"
as_lua: => "nil"
as_nomsu: => "nil"
as_text: => "nil"
nil_mt.__index = nil_mt
debug.setmetatable nil, nil_mt
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