mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-11-01 01:07:54 +00:00
221 lines
6.9 KiB
Python
221 lines
6.9 KiB
Python
"""Undocumented Module"""
|
|
|
|
__all__ = ['FourState']
|
|
|
|
|
|
|
|
from direct.directnotify import DirectNotifyGlobal
|
|
#import DistributedObject
|
|
import ClassicFSM
|
|
import State
|
|
from direct.task import Task
|
|
|
|
|
|
class FourState:
|
|
"""
|
|
Generic four state ClassicFSM base class.
|
|
|
|
This is a mix-in class that expects that your derived class
|
|
is a DistributedObject.
|
|
|
|
Inherit from FourStateFSM and pass in your states. Two of
|
|
the states should be oposites of each other and the other
|
|
two should be the transition states between the first two.
|
|
E.g.
|
|
|
|
+--------+
|
|
-->| closed | --
|
|
| +--------+ |
|
|
| |
|
|
| v
|
|
+---------+ +---------+
|
|
| closing |<----->| opening |
|
|
+---------+ +---------+
|
|
^ |
|
|
| |
|
|
| +------+ |
|
|
----| open |<---
|
|
+------+
|
|
|
|
There is a fifth off state, but that is an implementation
|
|
detail (and that's why it's not called a five state ClassicFSM).
|
|
|
|
I found that this pattern repeated in several things I was
|
|
working on, so this base class was created.
|
|
"""
|
|
notify = DirectNotifyGlobal.directNotify.newCategory('FourState')
|
|
|
|
def __init__(self, names, durations = [0, 1, None, 1, 1]):
|
|
"""
|
|
names is a list of state names
|
|
|
|
E.g.
|
|
['off', 'opening', 'open', 'closing', 'closed',]
|
|
|
|
e.g. 2:
|
|
['off', 'locking', 'locked', 'unlocking', 'unlocked',]
|
|
|
|
e.g. 3:
|
|
['off', 'deactivating', 'deactive', 'activating', 'activated',]
|
|
|
|
durations is a list of time values (floats) or None values.
|
|
|
|
Each list must have five entries.
|
|
|
|
More Details
|
|
|
|
Here is a diagram showing the where the names from the list
|
|
are used:
|
|
|
|
+---------+
|
|
| 0 (off) |----> (any other state and vice versa).
|
|
+---------+
|
|
|
|
+--------+
|
|
-->| 4 (on) |---
|
|
| +--------+ |
|
|
| |
|
|
| v
|
|
+---------+ +---------+
|
|
| 3 (off) |<----->| 1 (off) |
|
|
+---------+ +---------+
|
|
^ |
|
|
| |
|
|
| +---------+ |
|
|
--| 2 (off) |<--
|
|
+---------+
|
|
|
|
Each states also has an associated on or off value. The only
|
|
state that is 'on' is state 4. So, the transition states
|
|
between off and on (states 1 and 3) are also considered
|
|
off (and so is state 2 which is oposite of 4 and therefore
|
|
oposite of 'on').
|
|
"""
|
|
self.stateIndex = 0
|
|
assert self.debugPrint("FourState(names=%s)"%(names))
|
|
self.track = None
|
|
self.stateTime = 0.0
|
|
self.names = names
|
|
self.durations = durations
|
|
self.states = {
|
|
0: State.State(names[0],
|
|
self.enterState0,
|
|
self.exitState0,
|
|
[names[1],
|
|
names[2],
|
|
names[3],
|
|
names[4]]),
|
|
1: State.State(names[1],
|
|
self.enterState1,
|
|
self.exitState1,
|
|
[names[2], names[3]]),
|
|
2: State.State(names[2],
|
|
self.enterState2,
|
|
self.exitState2,
|
|
[names[3]]),
|
|
3: State.State(names[3],
|
|
self.enterState3,
|
|
self.exitState3,
|
|
[names[4], names[1]]),
|
|
4: State.State(names[4],
|
|
self.enterState4,
|
|
self.exitState4,
|
|
[names[1]]),
|
|
}
|
|
self.fsm = ClassicFSM.ClassicFSM('FourState',
|
|
self.states.values(),
|
|
# Initial State
|
|
names[0],
|
|
# Final State
|
|
names[0],
|
|
)
|
|
self.fsm.enterInitialState()
|
|
|
|
def setTrack(self, track):
|
|
assert self.debugPrint("setTrack(track=%s)"%(track,))
|
|
if self.track is not None:
|
|
self.track.pause()
|
|
self.track = None
|
|
if track is not None:
|
|
track.start(self.stateTime)
|
|
self.track = track
|
|
|
|
def enterStateN(self, stateIndex):
|
|
self.stateIndex = stateIndex
|
|
self.duration = self.durations[stateIndex] or 0.0
|
|
|
|
# The AI is the authority on setting the On value.
|
|
# If the client wants the state changed it needs to
|
|
# send a request to the AI.
|
|
#def setIsOn(self, isOn):
|
|
# assert self.debugPrint("setIsOn(isOn=%s)"%(isOn,))
|
|
# pass
|
|
|
|
def isOn(self):
|
|
assert self.debugPrint("isOn() returning %s (stateIndex=%s)"%(self.stateIndex==4, self.stateIndex))
|
|
return self.stateIndex==4
|
|
|
|
def changedOnState(self, isOn):
|
|
"""
|
|
Allow derived classes to overide this.
|
|
"""
|
|
assert self.debugPrint("changedOnState(isOn=%s)"%(isOn,))
|
|
|
|
##### state 0 #####
|
|
|
|
def enterState0(self):
|
|
assert self.debugPrint("enter0()")
|
|
self.enterStateN(0)
|
|
|
|
def exitState0(self):
|
|
assert self.debugPrint("exit0()")
|
|
# It's important for FourStates to broadcast their state
|
|
# when they are generated on the client. Before I put this in,
|
|
# if a door was generated and went directly to an 'open' state,
|
|
# it would not broadcast its state until it closed.
|
|
self.changedOnState(0)
|
|
|
|
##### state 1 #####
|
|
|
|
def enterState1(self):
|
|
assert self.debugPrint("enterState1()")
|
|
self.enterStateN(1)
|
|
|
|
def exitState1(self):
|
|
assert self.debugPrint("exitState1()")
|
|
|
|
##### state 2 #####
|
|
|
|
def enterState2(self):
|
|
assert self.debugPrint("enterState2()")
|
|
self.enterStateN(2)
|
|
|
|
def exitState2(self):
|
|
assert self.debugPrint("exitState2()")
|
|
|
|
##### state 3 #####
|
|
|
|
def enterState3(self):
|
|
assert self.debugPrint("enterState3()")
|
|
self.enterStateN(3)
|
|
|
|
def exitState3(self):
|
|
assert self.debugPrint("exitState3()")
|
|
|
|
##### state 4 #####
|
|
|
|
def enterState4(self):
|
|
assert self.debugPrint("enterState4()")
|
|
self.enterStateN(4)
|
|
self.changedOnState(1)
|
|
|
|
def exitState4(self):
|
|
assert self.debugPrint("exitState4()")
|
|
self.changedOnState(0)
|
|
|
|
if __debug__:
|
|
def debugPrint(self, message):
|
|
"""for debugging"""
|
|
return self.notify.debug("%d (%d) %s"%(
|
|
id(self), self.stateIndex==4, message))
|
|
|