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import json
import math
class MotionCaptureData(object):
def __init__(self):
self.Reset()
def Reset(self):
self._motion_data = []
def Load(self, path):
with open(path, 'r') as f:
self._motion_data = json.load(f)
def NumFrames(self):
return len(self._motion_data['Frames'])
def KeyFrameDuraction(self):
return self._motion_data['Frames'][0][0]
def getCycleTime(self):
keyFrameDuration = self.KeyFrameDuraction()
cycleTime = keyFrameDuration*(self.NumFrames()-1)
return cycleTime
def calcCycleCount(self, simTime, cycleTime):
phases = simTime / cycleTime;
count = math.floor(phases)
loop = True
#count = (loop) ? count : cMathUtil::Clamp(count, 0, 1);
return count
def computeCycleOffset(self):
firstFrame=0
lastFrame = self.NumFrames()-1
frameData = self._motion_data['Frames'][0]
frameDataNext = self._motion_data['Frames'][lastFrame]
basePosStart = [frameData[1],frameData[2],frameData[3]]
basePosEnd = [frameDataNext[1],frameDataNext[2],frameDataNext[3]]
self._cycleOffset = [basePosEnd[0]-basePosStart[0],basePosEnd[1]-basePosStart[1],basePosEnd[2]-basePosStart[2]]
return self._cycleOffset
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