mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-11-01 01:07:54 +00:00
237 lines
8.8 KiB
Python
237 lines
8.8 KiB
Python
|
|
|
|
from direct.directnotify import DirectNotifyGlobal
|
|
from direct.showbase import DirectObject
|
|
|
|
# internal class, don't create these on your own
|
|
class InputStateToken:
|
|
_SerialGen = SerialNumGen()
|
|
Inval = 'invalidatedToken'
|
|
def __init__(self, inputState):
|
|
self._id = InputStateToken._SerialGen.next()
|
|
self._hash = self._id
|
|
self._inputState = inputState
|
|
def release(self):
|
|
# subclasses will override
|
|
assert False
|
|
def isValid(self):
|
|
return self._id != InputStateToken.Inval
|
|
def invalidate(self):
|
|
self._id = InputStateToken.Inval
|
|
def __hash__(self):
|
|
return self._hash
|
|
|
|
class InputStateWatchToken(InputStateToken, DirectObject.DirectObject):
|
|
def release(self):
|
|
self._inputState._ignore(self)
|
|
self.ignoreAll()
|
|
class InputStateForceToken(InputStateToken):
|
|
def release(self):
|
|
self._inputState._unforce(self)
|
|
|
|
class InputStateTokenGroup:
|
|
def __init__(self):
|
|
self._tokens = []
|
|
def addToken(self, token):
|
|
self._tokens.append(token)
|
|
def release(self):
|
|
for token in self._tokens:
|
|
token.release()
|
|
self._tokens = []
|
|
|
|
class InputState(DirectObject.DirectObject):
|
|
"""
|
|
InputState is for tracking the on/off state of some events.
|
|
The initial usage is to watch some keyboard keys so that another
|
|
task can poll the key states. By the way, in general polling is
|
|
not a good idea, but it is useful in some situations. Know when
|
|
to use it:) If in doubt, don't use this class and listen for
|
|
events instead.
|
|
"""
|
|
|
|
notify = DirectNotifyGlobal.directNotify.newCategory("InputState")
|
|
|
|
# standard input sources
|
|
WASD = 'WASD'
|
|
QE = 'QE'
|
|
ArrowKeys = 'ArrowKeys'
|
|
Keyboard = 'Keyboard'
|
|
Mouse = 'Mouse'
|
|
|
|
def __init__(self):
|
|
# stateName->set(SourceNames)
|
|
self._state = {}
|
|
# stateName->set(SourceNames)
|
|
self._forcingOn = {}
|
|
# stateName->set(SourceNames)
|
|
self._forcingOff = {}
|
|
# tables to look up the info needed to undo operations
|
|
self._token2inputSource = {}
|
|
self._token2forceInfo = {}
|
|
# inputSource->token->(name, eventOn, eventOff)
|
|
self._watching = {}
|
|
assert self.debugPrint("InputState()")
|
|
|
|
def delete(self):
|
|
del self._watching
|
|
del self._token2forceInfo
|
|
del self._token2inputSource
|
|
del self._forcingOff
|
|
del self._forcingOn
|
|
del self._state
|
|
self.ignoreAll()
|
|
|
|
def isSet(self, name, inputSource=None):
|
|
"""
|
|
returns True/False
|
|
"""
|
|
#assert self.debugPrint("isSet(name=%s)"%(name))
|
|
if name in self._forcingOn:
|
|
return True
|
|
elif name in self._forcingOff:
|
|
return False
|
|
if inputSource:
|
|
s = self._state.get(name)
|
|
if s:
|
|
return inputSource in s
|
|
else:
|
|
return False
|
|
else:
|
|
return name in self._state
|
|
|
|
def getEventName(self, name):
|
|
return "InputState-%s" % (name,)
|
|
|
|
def set(self, name, isActive, inputSource=None):
|
|
assert self.debugPrint("set(name=%s, isActive=%s, inputSource=%s)"%(name, isActive, inputSource))
|
|
# inputSource is a string that identifies where this input change
|
|
# is coming from (like 'WASD', 'ArrowKeys', etc.)
|
|
# Each unique inputSource is allowed to influence this input item
|
|
# once: it's either 'active' or 'not active'. If at least one source
|
|
# activates this input item, the input item is considered to be active
|
|
if inputSource is None:
|
|
inputSource = 'anonymous'
|
|
if isActive:
|
|
self._state.setdefault(name, set())
|
|
self._state[name].add(inputSource)
|
|
else:
|
|
if name in self._state:
|
|
self._state[name].discard(inputSource)
|
|
if len(self._state[name]) == 0:
|
|
del self._state[name]
|
|
# We change the name before sending it because this may
|
|
# be the same name that messenger used to call InputState.set()
|
|
# this avoids running in circles:
|
|
messenger.send(self.getEventName(name), [self.isSet(name)])
|
|
|
|
def releaseInputs(self, name):
|
|
# call this to act as if all inputs affecting this state have been released
|
|
del self._state[name]
|
|
|
|
def watch(self, name, eventOn, eventOff, startState=False, inputSource=None):
|
|
"""
|
|
This returns a token; hold onto the token and call token.release() when you
|
|
no longer want to watch for these events.
|
|
|
|
# set up
|
|
token = inputState.watch('forward', 'w', 'w-up', inputSource=inputState.WASD)
|
|
...
|
|
# tear down
|
|
token.release()
|
|
"""
|
|
assert self.debugPrint(
|
|
"watch(name=%s, eventOn=%s, eventOff=%s, startState=%s)"%(
|
|
name, eventOn, eventOff, startState))
|
|
if inputSource is None:
|
|
inputSource = "eventPair('%s','%s')" % (eventOn, eventOff)
|
|
# Do we really need to reset the input state just because
|
|
# we're watching it? Remember, there may be multiple things
|
|
# watching this input state.
|
|
self.set(name, startState, inputSource)
|
|
token = InputStateWatchToken(self)
|
|
# make the token listen for the events, to allow multiple listeners for the same event
|
|
token.accept(eventOn, self.set, [name, True, inputSource])
|
|
token.accept(eventOff, self.set, [name, False, inputSource])
|
|
self._token2inputSource[token] = inputSource
|
|
self._watching.setdefault(inputSource, {})
|
|
self._watching[inputSource][token] = (name, eventOn, eventOff)
|
|
return token
|
|
|
|
def watchWithModifiers(self, name, event, startState=False, inputSource=None):
|
|
patterns = ('%s', 'control-%s', 'shift-control-%s', 'alt-%s',
|
|
'control-alt-%s', 'shift-%s', 'shift-alt-%s')
|
|
tGroup = InputStateTokenGroup()
|
|
for pattern in patterns:
|
|
tGroup.addToken(self.watch(name, pattern % event, '%s-up' % event, startState=startState, inputSource=inputSource))
|
|
return tGroup
|
|
|
|
def _ignore(self, token):
|
|
"""
|
|
Undo a watch(). Don't call this directly, call release() on the token that watch() returned.
|
|
"""
|
|
inputSource = self._token2inputSource.pop(token)
|
|
name, eventOn, eventOff = self._watching[inputSource].pop(token)
|
|
token.invalidate()
|
|
DirectObject.DirectObject.ignore(self, eventOn)
|
|
DirectObject.DirectObject.ignore(self, eventOff)
|
|
if len(self._watching[inputSource]) == 0:
|
|
del self._watching[inputSource]
|
|
|
|
# I commented this out because we shouldn't be modifying an
|
|
# input state simply because we're not looking at it anymore.
|
|
# self.set(name, False, inputSource)
|
|
|
|
|
|
def force(self, name, value, inputSource):
|
|
"""
|
|
Force isSet(name) to return 'value'.
|
|
|
|
This returns a token; hold onto the token and call token.release() when you
|
|
no longer want to force the state.
|
|
|
|
example:
|
|
# set up
|
|
token=inputState.force('forward', True, inputSource='myForwardForcer')
|
|
...
|
|
# tear down
|
|
token.release()
|
|
"""
|
|
token = InputStateForceToken(self)
|
|
self._token2forceInfo[token] = (name, inputSource)
|
|
if value:
|
|
if name in self._forcingOff:
|
|
self.notify.error(
|
|
"%s is trying to force '%s' to ON, but '%s' is already being forced OFF by %s" %
|
|
(inputSource, name, name, self._forcingOff[name])
|
|
)
|
|
self._forcingOn.setdefault(name, set())
|
|
self._forcingOn[name].add(inputSource)
|
|
else:
|
|
if name in self._forcingOn:
|
|
self.notify.error(
|
|
"%s is trying to force '%s' to OFF, but '%s' is already being forced ON by %s" %
|
|
(inputSource, name, name, self._forcingOn[name])
|
|
)
|
|
self._forcingOff.setdefault(name, set())
|
|
self._forcingOff[name].add(inputSource)
|
|
return token
|
|
|
|
def _unforce(self, token):
|
|
"""
|
|
Stop forcing a value. Don't call this directly, call release() on your token.
|
|
"""
|
|
name, inputSource = self._token2forceInfo[token]
|
|
token.invalidate()
|
|
if name in self._forcingOn:
|
|
self._forcingOn[name].discard(inputSource)
|
|
if len(self._forcingOn[name]) == 0:
|
|
del self._forcingOn[name]
|
|
if name in self._forcingOff:
|
|
self._forcingOff[name].discard(inputSource)
|
|
if len(self._forcingOff[name]) == 0:
|
|
del self._forcingOff[name]
|
|
|
|
def debugPrint(self, message):
|
|
"""for debugging"""
|
|
return self.notify.debug(
|
|
"%s (%s) %s"%(id(self), len(self._state), message))
|