local properties = {
    "Size", "Position", "Parent"
}

local values = {
    v3 = "Vector3.new",
    cf = "CFrame.new"
}

local getProperty = function(property)
    for _, value in ipairs(properties) do
        if value:lower():sub(1, #property) == property:lower() then
            return value
        end
    end
    return false
end

local getValue = function(value)
    for match, replace in pairs(values) do
        value = value:gsub(match, replace)
    end
    return loadstring("return " .. value)()
end

local define = function(class, parent)
    return setmetatable({
        class = class,
        parent = parent,
        props = {},
        create = function(self)
            local instance = Instance.new(self.class, self.parent)
            for index, value in ipairs(self.props) do
                instance[value[1]] = value[2]
            end
            return instance
        end
    }, {
        __newindex = function(self, key, value)
            table.insert(self.props, {getProperty(key), getValue(value)})
        end
    })
end

return define