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Applied patch from Nemesis13 partially ;-)

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Hubert Grzeskowiak 2009-11-03 18:08:29 +00:00 committed by rdb
parent fcd2a2ec0d
commit 617e9d5e8c
1 changed files with 33 additions and 25 deletions
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46
direct/src/fsm/FSM.py
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@ -1,11 +1,9 @@
"""Undocumented Module"""
"""The new Finite State Machine module. This replaces the module
previously called FSM.py (now called ClassicFSM.py).
"""
__all__ = ['FSMException', 'FSM']
"""
The new Finite State Machine module. This replaces the modules
previously called FSM.py (now called ClassicFSM.py).
"""
from direct.showbase.DirectObject import DirectObject
from direct.directnotify import DirectNotifyGlobal
@ -145,6 +143,7 @@ class FSM(DirectObject):
def __init__(self, name):
self.fsmLock = RLock()
self.name = name
self.stateArray = []
self._serialNum = FSM.SerialNum
FSM.SerialNum += 1
self._broadcastStateChanges = False
@ -393,33 +392,42 @@ class FSM(DirectObject):
finally:
self.fsmLock.release()
def requestNext(self, *args):
"""request the 'next' state in the predefined state array"""
"""Request the 'next' state in the predefined state array."""
self.fsmLock.acquire()
try:
assert self.state in self.stateArray
if self.stateArray:
if not self.state in self.stateArray:
self.request(self.stateArray[0])
else:
cur_index = self.stateArray.index(self.state)
new_index = (cur_index + 1) % len(self.stateArray)
self.request(self.stateArray[new_index], args)
else:
assert self.notifier.debug(
"stateArray empty. Can't switch to next.")
curIndex = self.stateArray.index(self.state)
newIndex = (curIndex + 1) % len(self.stateArray)
self.request(self.stateArray[newIndex], args)
finally:
self.fsmLock.release()
def requestPrev(self, *args):
"""request the 'previous' state in the predefined state array"""
"""Request the 'previous' state in the predefined state array."""
self.fsmLock.acquire()
try:
assert self.state in self.stateArray
curIndex = self.stateArray.index(self.state)
newIndex = (curIndex - 1) % len(self.stateArray)
self.request(self.stateArray[newIndex], args)
if self.stateArray:
if not self.state in self.stateArray:
self.request(self.stateArray[0])
else:
cur_index = self.stateArray.index(self.state)
new_index = (cur_index - 1) % len(self.stateArray)
self.request(self.stateArray[new_index], args)
else:
assert self.notifier.debug(
"stateArray empty. Can't switch to next.")
finally:
self.fsmLock.release()
def __setState(self, newState, *args):
# Internal function to change unconditionally to the indicated
# state.