blob: c1c16d878b1ee85750c4f97a6eca873fd1545f59 (
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local mt = {}
function mt:__call(instance)
instance = instance or {}
assert(type(instance) == 'table')
local ci = setmetatable({i = instance, inited = false, obj = false},
{__index = self, __newindex = function()assert(false)end})
return ci
end
-- create a new component type. the arguments are interpreted as a list of
-- dependences. each dependency is expressed as an array. the first value is
-- the component type. the optional second value is the default properties
local function component(...)
local c = {}
c.component_type = c
c.deps = {...}
for i, dep in ipairs(c.deps) do
assert(#dep ~= 0)
end
c.init = function() end
return setmetatable(c, mt)
end
return component
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