def __init__(self, function, duration = 0.0, fromData = 0, toData = 1,
blendType = 'noBlend', extraArgs = [], name = None):
"""__init__(function, duration, fromData, toData, name)
"""
# Record instance variables
self.function = function
self.fromData = fromData
self.toData = toData
self.blendType = LerpBlendHelpers.getBlend(blendType)
self.extraArgs = extraArgs
# Generate unique name if necessary
if (name == None):
name = ('LerpFunctionInterval-%s-%d' %
(function.__name__,
LerpFunctionInterval.lerpFunctionIntervalNum))
LerpFunctionInterval.lerpFunctionIntervalNum += 1
else:
# Allow the user to pass in a %d in the name and we'll go ahead
# and uniquify the name for them.
if "%d" in name:
name = name % LerpFunctionInterval.lerpFunctionIntervalNum
LerpFunctionInterval.lerpFunctionIntervalNum += 1
# Initialize superclass
Interval.Interval.__init__(self, name, duration)
def __lerp(self, functorFunc, duration, blendType, taskName=None):
"""
__lerp(self, functorFunc, float, string, string)
Basic lerp functionality used by other lerps.
Fire off a lerp. Make it a task if taskName given.
"""
# functorFunc is a function which can be called to create a functor.
# functor creation is defered so initial state (sampled in functorFunc)
# will be appropriate for the time the lerp is spawned
from panda3d.direct.task import Task
from panda3d.direct.showbase import LerpBlendHelpers
from panda3d.direct.task.TaskManagerGlobal import taskMgr
# upon death remove the functorFunc
def lerpUponDeath(task):
# Try to break circular references
try:
del task.functorFunc
except:
pass
try:
del task.lerp
except:
pass
# make the task function
def lerpTaskFunc(task):
from panda3d.pandac.Lerp import Lerp
from panda3d.pandac.ClockObject import ClockObject
from panda3d.direct.task.Task import Task, cont, done
if task.init == 1:
# make the lerp
functor = task.functorFunc()
task.lerp = Lerp(functor, task.duration, task.blendType)
task.init = 0
dt = globalClock.getDt()
task.lerp.setStepSize(dt)
task.lerp.step()
if (task.lerp.isDone()):
# Reset the init flag, in case the task gets re-used
task.init = 1
return (done)
else:
return (cont)
# make the lerp task
lerpTask = Task.Task(lerpTaskFunc)
lerpTask.init = 1
lerpTask.functorFunc = functorFunc
lerpTask.duration = duration
lerpTask.blendType = LerpBlendHelpers.getBlend(blendType)
lerpTask.setUponDeath(lerpUponDeath)
if (taskName == None):
# don't spawn a task, return one instead
return lerpTask
else:
# spawn the lerp task
taskMgr.add(lerpTask, taskName)
return lerpTask
def __init__(self,
interval,
startT=0,
endT=None,
playRate=1,
duration=None,
blendType='noBlend',
name=None):
self.interval = interval
self.startAtStart = (startT == 0)
self.endAtEnd = (endT == None or endT == interval.getDuration())
if endT == None:
endT = interval.getDuration()
if duration == None:
duration = abs(endT - startT) / playRate
if (name == None):
name = ('IndirectInterval-%d' %
IndirectInterval.indirectIntervalNum)
IndirectInterval.indirectIntervalNum += 1
self.startT = startT
self.endT = endT
self.deltaT = endT - startT
self.blendType = LerpBlendHelpers.getBlend(blendType)
Interval.Interval.__init__(self, name, duration)
def __init__(self, interval,
startT = 0, endT = None, playRate = 1,
duration = None, blendType = 'noBlend', name = None):
self.interval = interval
self.startAtStart = (startT == 0)
self.endAtEnd = (endT == None or endT == interval.getDuration())
if endT == None:
endT = interval.getDuration()
if duration == None:
duration = abs(endT - startT) / playRate
if (name == None):
name = ('IndirectInterval-%d' %
IndirectInterval.indirectIntervalNum)
IndirectInterval.indirectIntervalNum += 1
self.startT = startT
self.endT = endT
self.deltaT = endT - startT
self.blendType = LerpBlendHelpers.getBlend(blendType)
Interval.Interval.__init__(self, name, duration)
def __init__(self,
function,
duration=0.0,
fromData=0,
toData=1,
blendType='noBlend',
extraArgs=[],
name=None):
"""__init__(function, duration, fromData, toData, name)
"""
# Record instance variables
self.function = function
self.fromData = fromData
self.toData = toData
self.blendType = LerpBlendHelpers.getBlend(blendType)
self.extraArgs = extraArgs
# Generate unique name if necessary
if (name == None):
name = ('LerpFunctionInterval-%s-%d' %
(function.__name__,
LerpFunctionInterval.lerpFunctionIntervalNum))
LerpFunctionInterval.lerpFunctionIntervalNum += 1
else:
# Allow the user to pass in a %d in the name and we'll go ahead
# and uniquify the name for them.
if "%d" in name:
name = name % LerpFunctionInterval.lerpFunctionIntervalNum
LerpFunctionInterval.lerpFunctionIntervalNum += 1
# Initialize superclass
Interval.Interval.__init__(self, name, duration)
def __lerp(self, functorFunc, duration, blendType, taskName=None):
"""
__lerp(self, functorFunc, float, string, string)
Basic lerp functionality used by other lerps.
Fire off a lerp. Make it a task if taskName given.
"""
# functorFunc is a function which can be called to create a functor.
# functor creation is defered so initial state (sampled in functorFunc)
# will be appropriate for the time the lerp is spawned
from panda3d.direct.task import Task
from panda3d.direct.showbase import LerpBlendHelpers
from panda3d.direct.task.TaskManagerGlobal import taskMgr
# upon death remove the functorFunc
def lerpUponDeath(task):
# Try to break circular references
try:
del task.functorFunc
except:
pass
try:
del task.lerp
except:
pass
# make the task function
def lerpTaskFunc(task):
from panda3d.pandac.Lerp import Lerp
from panda3d.pandac.ClockObject import ClockObject
from panda3d.direct.task.Task import Task, cont, done
if task.init == 1:
# make the lerp
functor = task.functorFunc()
task.lerp = Lerp(functor, task.duration, task.blendType)
task.init = 0
dt = globalClock.getDt()
task.lerp.setStepSize(dt)
task.lerp.step()
if (task.lerp.isDone()):
# Reset the init flag, in case the task gets re-used
task.init = 1
return(done)
else:
return(cont)
# make the lerp task
lerpTask = Task.Task(lerpTaskFunc)
lerpTask.init = 1
lerpTask.functorFunc = functorFunc
lerpTask.duration = duration
lerpTask.blendType = LerpBlendHelpers.getBlend(blendType)
lerpTask.setUponDeath(lerpUponDeath)
if (taskName == None):
# don't spawn a task, return one instead
return lerpTask
else:
# spawn the lerp task
taskMgr.add(lerpTask, taskName)
return lerpTask
def __autoLerp(self, functorFunc, time, blendType, taskName):
"""_autoLerp(self, functor, float, string, string)
This lerp uses C++ to handle the stepping. Bonus is
its more efficient, trade-off is there is less control"""
from panda3d.pandac import AutonomousLerp
from panda3d.direct.showbase import LerpBlendHelpers
# make a lerp that lives in C++ land
functor = functorFunc()
lerp = AutonomousLerp.AutonomousLerp(functor, time,
LerpBlendHelpers.getBlend(blendType),
base.eventHandler)
lerp.start()
return lerp
def __autoLerp(self, functorFunc, time, blendType, taskName):
"""_autoLerp(self, functor, float, string, string)
This lerp uses C++ to handle the stepping. Bonus is
its more efficient, trade-off is there is less control"""
from panda3d.pandac import AutonomousLerp
from panda3d.direct.showbase import LerpBlendHelpers
# make a lerp that lives in C++ land
functor = functorFunc()
lerp = AutonomousLerp.AutonomousLerp(functor, time,
LerpBlendHelpers.getBlend(blendType),
base.eventHandler)
lerp.start()
return lerp