add SignalManager.lua and revert to old Node.lua

1 files changed, 24 insertions, 0 deletions

diff --git a/demo/SignalManager.lua b/demo/SignalManager.lua
new file mode 100644
index 0000000..b7e9d6b
--- /dev/null
+++ b/demo/SignalManager.lua
@@ -0,0 +1,24 @@
+local SignalManager = {}
+SignalManager.signals = {}
+
+function SignalManager.addCallback(self, signal, func)
+   if not self.signals[signal] then self.signals[signal] = {} end
+   self.signals[signal][func] = true
+end
+
+function SignalManager.removeCallback(self, signal, func)
+   if self.signals[signal] then
+      self.signals[signal][func] = nil
+   end
+end
+
+function SignalManager.emit(self, signal, argtable)
+   local sig = self.signals[signal]
+   if not sig then return end
+
+   for f, _ in pairs(sig) do
+      f(argtable)
+   end
+end
+
+return SignalManager