SEMilfred
4/22/2020 - 6:52 PM

Singleton Instance References

A macro creating a new object reference with singleton functionality. This means any reference to the object (using the macro) will create an instance of the object if it does not already exist.

singleton_macro
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/// Singleton
/*
  Place this in the create event of the object.
  Make sure to name the object itself as you
  normally would, except prefixed with a "_".
  
  Replace "obj_example" in the macro with the
  object name (without the "_"). Adjust the
  instance_create_depth to your liking.
*/
#macro obj_example (instance_exists(_obj_example) ? _obj_example : instance_create_depth(0, 0, -10000, _obj_example))