signal.lua

A simple implementation of Signals for Lua and Ansca’s Corona SDK by Josh Tynjala. Inspired by as3-signals, the ActionScript implementation by Robert Penner.

Usage

local signal = require("signal")

local function onSignalListener(message)
	-- prints "signal says:   hello!  nil"
	print("signal says:", message, self)
end

local myTable = {}
function myTable:method(message)
	-- prints "signal says:   hello!  table: ########"
	print("signal says:", message, self)
end

local onSignal = signal.new()
onSignal:add(onSignalListener) --no scope
onSignal:add(myTable.method, myTable) --include scope
onSignal:dispatch("hello!")