Simple Nim godot example

simple_godot.nim

# taken from: https://github.com/pragmagic/godot-nim/issues/17#issuecomment-399192271
import godot, node, input

gdobj MyNode of Node:
   method init*() =
      addUserSignal("my_signal") # Declare on init. If need to connect this signal to other nodes, should be done in code

   method ready*() =
      connect("my_signal", self, "_on_my_signal_emitted")

   method process*(delta: float64) =
      if isActionPressed("my_action"):
         discard callDeferred("deferred_emit") # As we are not interested in the values returned by this function, this should be discarded
   
   proc deferredEmit*() {.gdExport.} = # deferredEmit is interpreted as deferred_emit by the API
         emitSignal("my_signal")

   method onMySignalEmitted*()= # By not using .gdExport., the API will read "_on_my_signal_emitted"
      print("I got a deferred signal")