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@@ -472,14 +472,28 @@ A function can ``return`` at any point. The default return value is ``null``.
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Referencing Functions
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^^^^^^^^^^^^^^^^^^^^^
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-A function in another class can be referenced as follows:
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+Referencing a function in another class means retrieving
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+that class from the scene tree.
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::
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- get_node("/root/path/to/node").function(args)
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+ # absolute node path
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+ get_node("/root/path/to/node").myfunction(args)
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+ # relative reference
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+ get_node("../node").myfunction(args)
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+A common case is referencing a function (or variable)
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+in the class' node parent, accessible with ``get_parent``:
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-To call a function in a *base class* (i.e. one extended in your current class),
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+::
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+
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+ # store parent in variable, then reference
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+ var parent = get_parent()
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+ parent.function(args)
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+ # two parents up (etc)
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+ get_parent().get_parent().function(args)
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+
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+To call a function in a *base class* (i.e. one ``extend``ed in your current class),
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prepend ``.`` to the function name:
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::
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@@ -488,7 +502,7 @@ prepend ``.`` to the function name:
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Contrary to Python, functions are *not* first class objects in GDScript. This
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-means that they cannot be treated as objects and stored in variables. They
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+means that they cannot be treated as objects and stored in variables. Functions
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cannot be referenced directly since they are not considered
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class members (this is for performance reasons).
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Griatch