33 lines
891 B
Lua
Executable file
33 lines
891 B
Lua
Executable file
-- Kidna copying awesotre's stores on a surface level for added compatibility
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local function subscribable(args)
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local obj = args or {}
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local subscribed = {}
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-- Subscrubes a function to the object so that it's called when `fire` is
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-- Calls subscribe_callback if it exists as well
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function obj:subscribe(func)
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local id = tostring(func):gsub("function: ", "")
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subscribed[id] = func
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if self.subscribe_callback then self.subscribe_callback(func) end
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end
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-- Unsubscribes a function and calls unsubscribe_callback if it exists
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function obj:unsubscribe(func)
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if not func then
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subscribed = {}
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else
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local id = tostring(func):gsub("function: ", "")
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subscribed[id] = nil
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end
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if self.unsubscribe_callback then self.unsubscribe_callback(func) end
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end
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function obj:fire(...) for _, func in pairs(subscribed) do func(...) end end
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return obj
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end
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return subscribable
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