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This commit is contained in:
Mark Mine 2001-05-15 22:58:04 +00:00
parent 42f0d671e0
commit bec411d2c3
1 changed files with 5 additions and 4 deletions
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9
direct/src/interval/LerpInterval.py
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@ -242,7 +242,7 @@ class LerpFunctionInterval(Interval):
lerpFunctionIntervalNum = 1
# Class methods
def __init__(self, function, fromData = 0, toData = 1, duration = 0.0,
blendType = 'noBlend', name = None):
blendType = 'noBlend', extraArgs = [], name = None):
"""__init__(function, duration, fromData, toData, name)
"""
# Record instance variables
@ -250,6 +250,7 @@ class LerpFunctionInterval(Interval):
self.fromData = fromData
self.toData = toData
self.blendType = self.getBlend(blendType)
self.extraArgs = extraArgs
# Generate unique name if necessary
if (name == None):
name = ('LerpFunctionInterval-%d' %
@ -263,17 +264,17 @@ class LerpFunctionInterval(Interval):
# Evaluate the function
if (t >= self.duration):
# Set to end value
self.function(self.toData)
apply(self.function, [self.toData] + self.extraArgs)
else:
# In the middle of the lerp, compute appropriate blended value
try:
bt = self.blendType(t/self.duration)
data = (self.fromData * (1 - bt)) + (self.toData * bt)
# Evaluate function
self.function(data)
apply(self.function, [data] + self.extraArgs)
except ZeroDivisionError:
# Zero duration, just use endpoint
self.function(self.toData)
apply(self.function, [self.toData] + self.extraArgs)
def getBlend(self, blendType):
"""__getBlend(self, string)
Return the C++ blend class corresponding to blendType string