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Make evmenu 'goto' option argument accept a callable for deciding the next node.

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This commit is contained in:
Griatch 2017-01-21 22:59:43 +01:00
parent 5b62a30ce6
commit 0aebbf6975
1 changed files with 13 additions and 1 deletions
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14
evennia/utils/evmenu.py
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@ -785,12 +785,24 @@ class EvMenu(object):
Run a node by name
Args:
nodename (str): Name of node.
nodename (str or callable): Name of node or a callable
to be called as `function(caller, raw_string)` or `function(caller)`
to return the actual goto string.
raw_string (str): The raw default string entered on the
previous node (only used if the node accepts it as an
argument)
"""
if callable(nodename):
try:
if len(getargspec(nodename).args) > 1:
# callable accepting raw_string
nodename = nodename(self.caller, raw_string)
else:
nodename = nodename(self.caller)
except Exception:
self.caller.msg(_ERR_GENERAL.format(nodename=nodename), self._session)
raise
try:
# execute the node, make use of the returns.
nodetext, options = self._execute_node(nodename, raw_string)