def __init__(self,
nodePath,
lookAtNode,
durationFactor=0.01,
name=None,
blendType='noBlend',
bakeInStart=1,
fluid=0,
other=None,
isBackwards=False):
if not nodePath.isEmpty():
_oldHpr = nodePath.getHpr()
#if isBackwards:
# _oldHpr.setX(_oldHpr.getXy()[0] - 180)
nodePath.headsUp(lookAtNode)
#if isBackwards:
# nodePath.setH(nodePath.getH() - 180)
_newHpr = nodePath.getHpr()
nodePath.setHpr(_oldHpr)
_distance = (_newHpr.getXy() - _oldHpr.getXy()).length()
self.distance = _distance
duration = _distance * durationFactor
LerpQuatInterval.__init__(self,
nodePath,
duration,
_newHpr,
startHpr=_oldHpr,
other=other,
blendType=blendType,
bakeInStart=bakeInStart,
fluid=fluid,
name=name)
else:
self.notify.warning('You must specify a non-empty NodePath!')
