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Copy pathAnimationClip.py
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599 lines (488 loc) · 19.2 KB
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import math
from enum import IntEnum
from .NamedObject import NamedObject
from .PPtr import PPtr
from ..enums import ClassIDType
from ..math import Quaternion, Vector3
from ..streams import EndianBinaryReader
def uint(num):
if num < 0 or num > 4294967295:
return num % 4294967296
return num
class Keyframe:
def __init__(self, reader, readerFunc):
self.time = reader.read_float()
self.value = readerFunc()
self.inSlope = readerFunc()
self.outSlope = readerFunc()
if reader.version >= (2018,): # 2018 and up
self.weightedMode = reader.read_int()
self.inWeight = readerFunc()
self.outWeight = readerFunc()
class AnimationCurve:
def __init__(self, reader, readerFunc):
version = reader.version
numCurves = reader.read_int()
self.m_Curve = [Keyframe(reader, readerFunc) for _ in range(numCurves)]
self.m_PreInfinity = reader.read_int()
self.m_PostInfinity = reader.read_int()
if version >= (5, 3): # 5.3 and up
self.m_RotationOrder = reader.read_int()
class QuaternionCurve:
def __init__(self, reader):
self.curve = AnimationCurve(reader, reader.read_quaternion) # <Quaternion>
self.path = reader.read_aligned_string()
class PackedFloatVector:
def __init__(self, reader):
self.m_NumItems = reader.read_u_int()
self.m_Range = reader.read_float()
self.m_Start = reader.read_float()
numData = reader.read_int()
self.m_Data = reader.read_bytes(numData)
reader.align_stream()
self.m_BitSize = reader.read_byte()
reader.align_stream()
def save(self, writer):
writer.write_u_int(self.m_NumItems)
writer.write_float(self.m_Range)
writer.write_float(self.m_Start)
writer.write_int(len(self.m_Data))
writer.write_bytes(self.m_Data)
writer.align_stream()
writer.write_byte(self.m_BitSize)
writer.align_stream()
def UnpackFloats(
self,
itemCountInChunk: int,
chunkStride: int,
start: int = 0,
numChunks: int = -1,
):
bitPos: int = self.m_BitSize * start
indexPos: int = bitPos // 8
bitPos %= 8
scale: float = (1.0 / self.m_Range) if self.m_Range else float('inf')
if numChunks == -1:
numChunks = self.m_NumItems // itemCountInChunk
end = int(chunkStride * numChunks / 4)
data = []
for index in range(0, end, chunkStride // 4):
for i in range(itemCountInChunk):
x = 0 # uint
bits = 0
while bits < self.m_BitSize:
x |= uint(
(self.m_Data[indexPos] >> bitPos) << bits
) # (uint)((m_Data[indexPos] >> bitPos) << bits)
num = min(self.m_BitSize - bits, 8 - bitPos)
bitPos += num
bits += num
if bitPos == 8: #
indexPos += 1
bitPos = 0
x &= uint((1 << self.m_BitSize) - 1) # (uint)(1 << m_BitSize) - 1u
denomi = scale * ((1 << self.m_BitSize) - 1)
data.append( (x / denomi if denomi else float('inf')) + self.m_Start)
return data
class PackedIntVector:
def __init__(self, reader):
self.m_NumItems = reader.read_u_int()
numData = reader.read_int()
self.m_Data = reader.read_bytes(numData)
reader.align_stream()
self.m_BitSize = reader.read_byte()
reader.align_stream()
def save(self, writer):
writer.write_u_int(self.m_NumItems)
writer.write_int(len(self.m_Data))
writer.write_bytes(self.m_Data)
writer.align_stream()
writer.write_byte(self.m_BitSize)
writer.align_stream()
def UnpackInts(self):
data = [0] * self.m_NumItems
indexPos = 0
bitPos = 0
m_BitSize = self.m_BitSize
for i in range(self.m_NumItems):
bits = 0
entry = 0
while bits < m_BitSize:
entry |= (self.m_Data[indexPos] >> bitPos) << bits
num = min(m_BitSize - bits, 8 - bitPos)
bitPos += num
bits += num
if bitPos == 8: #
indexPos += 1
bitPos = 0
data.append(entry & (1 << m_BitSize) - 1)
return data
class PackedQuatVector:
def __init__(self, reader):
self.m_NumItems = reader.read_u_int()
numData = reader.read_int()
self.m_Data = reader.read_bytes(numData)
reader.align_stream()
def UnpackQuats(self):
m_Data = self.m_Data
data = [None]*self.m_NumItems
indexPos = 0
bitPos = 0
for i in range(self.m_NumItems):
flags = 0
bits = 0
while bits < 3:
flags |= (m_Data[indexPos] >> bitPos) << bits # unit
num = min(3 - bits, 8 - bitPos)
bitPos += num
bits += num
if bitPos == 8: #
indexPos += 1
bitPos = 0
flags &= 7
q = Quaternion()
sum = 0
for j in range(4):
if (flags & 3) != j: #
bitSize = 9 if ((flags & 3) + 1) % 4 == j else 10
x = 0
bits = 0
while bits < bitSize:
x |= (m_Data[indexPos] >> bitPos) << bits # uint
num = min(bitSize - bits, 8 - bitPos)
bitPos += num
bits += num
if bitPos == 8: #
indexPos += 1
bitPos = 0
x &= (1 << bitSize) - 1 # unit
q[j] = x / (0.5 * ((1 << bitSize) - 1)) - 1
sum += q[j] * q[j]
lastComponent = flags & 3 # int
q[lastComponent] = math.sqrt(1 - sum) # float
if (flags & 4) != 0: # 0u
q[lastComponent] = -q[lastComponent]
data.append(q)
return data
class CompressedAnimationCurve:
def __init__(self, reader):
self.m_Path = reader.read_aligned_string()
self.m_Times = PackedIntVector(reader)
self.m_Values = PackedQuatVector(reader)
self.m_Slopes = PackedFloatVector(reader)
self.m_PreInfinity = reader.read_int()
self.m_PostInfinity = reader.read_int()
class Vector3Curve:
def __init__(self, reader):
self.curve = AnimationCurve(reader, reader.read_vector3) # Vector3
self.path = reader.read_aligned_string()
class FloatCurve:
def __init__(self, reader):
self.curve = AnimationCurve(reader, reader.read_float) # Float
self.attribute = reader.read_aligned_string()
self.path = reader.read_aligned_string()
self.classID = ClassIDType(reader.read_int())
self.script = PPtr(reader) # MonoScript
class PPtrKeyframe:
def __init__(self, reader):
self.time = reader.read_float()
self.value = PPtr(reader) # Object
class PPtrCurve:
def __init__(self, reader):
numCurves = reader.read_int()
self.curve = [PPtrKeyframe(reader) for _ in range(numCurves)]
self.attribute = reader.read_aligned_string()
self.path = reader.read_aligned_string()
self.classID = reader.read_int()
self.script = PPtr(reader) # MonoScript
class AABB:
def __init__(self, reader):
self.m_Center = reader.read_vector3()
self.m_Extent = reader.read_vector3()
def save(self, writer):
writer.write_vector3(self.m_Center)
writer.write_vector3(self.m_Extent)
class xform:
def __init__(self, reader):
version = reader.version
self.t = (
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4())
) # 5.4 and up
self.q = reader.read_quaternion()
self.s = (
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4())
) # 5.4 and up
class HandPose:
def __init__(self, reader):
self.m_GrabX = xform(reader)
self.m_DoFArray = reader.read_float_array()
self.m_Override = reader.read_float()
self.m_CloseOpen = reader.read_float()
self.m_InOut = reader.read_float()
self.m_Grab = reader.read_float()
class HumanGoal:
def __init__(self, reader):
version = reader.version
self.m_X = xform(reader)
self.m_WeightT = reader.read_float()
self.m_WeightR = reader.read_float()
if version >= (5,): # 5.0 and up
self.m_HintT = (
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4())
) # 5.4 and up
self.m_HintWeightT = reader.read_float()
class HumanPose:
def __init__(self, reader):
version = reader.version
self.m_RootX = xform(reader)
self.m_LookAtPosition = (
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4())
) # 5.4 and up
self.m_LookAtWeight = reader.read_vector4()
numGoals = reader.read_int()
self.m_GoalArray = [HumanGoal(reader) for _ in range(numGoals)]
self.m_LeftHandPose = HandPose(reader)
self.m_RightHandPose = HandPose(reader)
self.m_DoFArray = reader.read_float_array()
if version >= (5, 2): # 5.2 and up
numTDof = reader.read_int()
self.m_TDoFArray = [
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4()) # 5.4 and up
for _ in range(numTDof)
]
class StreamedCurveKey:
def __init__(self, reader):
self.index = reader.read_int()
self.coeff = reader.read_float_array(4)
self.outSlope = self.coeff[2]
self.value = self.coeff[3]
def CalculateNextInSlope(self, dx: float, rhs):
"""
:param dx: float
:param rhs: StreamedCurvedKey
:return:
"""
# Stepped
if self.coeff[0] == 0 and self.coeff[1] == 0 and self.coeff[2] == 0:
return float('inf')
dx = max(dx, 0.0001)
dy = rhs.value - self.value
length = 1.0 / (dx * dx)
d1 = self.outSlope * dx
d2 = dy + dy + dy - d1 - d1 - self.coeff[1] / length
return d2 / dx
class StreamedFrame:
def __init__(self, reader):
self.time = reader.read_float()
numKeys = reader.read_int()
self.keyList = [StreamedCurveKey(reader) for _ in range(numKeys)]
class StreamedClip:
def __init__(self, reader):
self.data = reader.read_u_int_array()
self.curveCount = reader.read_u_int()
def ReadData(self):
frameList = []
buffer = self.data[0 : len(self.data) * 4]
reader = EndianBinaryReader(buffer)
while reader.Position < reader.Length:
frameList.append(StreamedFrame(reader))
for frameIndex in range(2, len(frameList) - 1):
frame = frameList[frameIndex]
for curveKey in frame.keyList:
i = frameIndex - 1
while i >= 0:
preFrame = frameList[i]
try:
preCurveKey = [
x for x in preFrame.keyList if x.index == curveKey.index
][0]
curveKey.inSlope = preCurveKey.CalculateNextInSlope(
frame.time - preFrame.time, curveKey
)
break
except IndexError:
pass
i -= 1
return frameList
class DenseClip:
def __init__(self, reader):
self.m_FrameCount = reader.read_int()
self.m_CurveCount = reader.read_u_int()
self.m_SampleRate = reader.read_float()
self.m_BeginTime = reader.read_float()
self.m_SampleArray = reader.read_float_array()
class ConstantClip:
def __init__(self, reader):
self.data = reader.read_float_array()
class ValueConstant:
def __init__(self, reader):
version = reader.version
self.m_ID = reader.read_u_int()
if version < (5, 5): # 5.5 down
self.m_TypeID = reader.read_u_int()
self.m_Type = reader.read_u_int()
self.m_Index = reader.read_u_int()
class ValueArrayConstant:
def __init__(self, reader):
numVals = reader.read_int()
self.m_ValueArray = [ValueConstant(reader) for _ in range(numVals)]
class Clip:
def __init__(self, reader):
version = reader.version
self.m_StreamedClip = StreamedClip(reader)
self.m_DenseClip = DenseClip(reader)
if version >= (4, 3): # 4.3 and up
self.m_ConstantClip = ConstantClip(reader)
if version < (2018, 3): # 2018.3 down
self.m_Binding = ValueArrayConstant(reader)
class ValueDelta:
def __init__(self, reader):
self.m_Start = reader.read_float()
self.m_Stop = reader.read_float()
class ClipMuscleConstant:
def __init__(self, reader):
version = reader.version
self.m_DeltaPose = HumanPose(reader)
self.m_StartX = xform(reader)
if version >= (5, 5): # 5.5 and up
self.m_StopX = xform(reader)
self.m_LeftFootStartX = xform(reader)
self.m_RightFootStartX = xform(reader)
if version < (5,): # 5.0 down
self.m_MotionStartX = xform(reader)
self.m_MotionStopX = xform(reader)
self.m_AverageSpeed = (
reader.read_vector3()
if version >= (5, 4)
else Vector3(reader.read_vector4())
) # 5.4 and up
self.m_Clip = Clip(reader)
self.m_StartTime = reader.read_float()
self.m_StopTime = reader.read_float()
self.m_OrientationOffsetY = reader.read_float()
self.m_Level = reader.read_float()
self.m_CycleOffset = reader.read_float()
self.m_AverageAngularSpeed = reader.read_float()
self.m_IndexArray = reader.read_int_array()
if version < (4, 3): # 4.3 down
self.m_AdditionalCurveIndexArray = reader.read_int_array()
numDeltas = reader.read_int()
self.m_ValueArrayDelta = [ValueDelta(reader) for _ in range(numDeltas)]
if version >= (5, 3): # 5.3 and up
self.m_ValueArrayReferencePose = reader.read_float_array()
self.m_Mirror = reader.read_boolean()
if version >= (4, 3): # 4.3 and up
self.m_LoopTime = reader.read_boolean()
self.m_LoopBlend = reader.read_boolean()
self.m_LoopBlendOrientation = reader.read_boolean()
self.m_LoopBlendPositionY = reader.read_boolean()
self.m_LoopBlendPositionXZ = reader.read_boolean()
if version >= (5, 5): # 5.5 and up
self.m_StartAtOrigin = reader.read_boolean()
self.m_KeepOriginalOrientation = reader.read_boolean()
self.m_KeepOriginalPositionY = reader.read_boolean()
self.m_KeepOriginalPositionXZ = reader.read_boolean()
self.m_HeightFromFeet = reader.read_boolean()
reader.align_stream()
class GenericBinding:
def __init__(self, reader):
version = reader.version
self.path = reader.read_u_int()
self.attribute = reader.read_u_int()
self.script = PPtr(reader) # Object
if version >= (5, 6): # 5.6 and up
self.typeID = ClassIDType(reader.read_int())
else:
self.typeID = ClassIDType(reader.read_u_short())
self.customType = reader.read_byte()
self.isPPtrCurve = reader.read_byte()
reader.align_stream()
class AnimationClipBindingConstant:
def __init__(self, reader):
numBindings = reader.read_int()
self.genericBindings = [GenericBinding(reader) for _ in range(numBindings)]
numMappings = reader.read_int()
self.pptrCurveMapping = [PPtr(reader) for _ in range(numMappings)] # Object
def FindBinding(self, index):
curves = 0
for b in self.genericBindings:
if b.typeID == ClassIDType.Transform: #
switch = b.attribute
if switch in [1, 3, 4]:
# case 1: #kBindTransformPosition
# case 3: #kBindTransformScale
# case 4: #kBindTransformEuler
curves += 3
elif switch == 2: # kBindTransformRotation
curves += 4
else:
curves += 1
else:
curves += 1
if curves > index:
return b
return None
class AnimationType(IntEnum):
kLegacy = (1,)
kGeneric = (2,)
kHumanoid = 3
class AnimationClip(NamedObject):
def __init__(self, reader):
super().__init__(reader=reader)
version = reader.version
if version >= (5,): # 5.0 and up
self.m_Legacy = reader.read_boolean()
elif version >= (4,): # 4.0 and up
self.m_AnimationType = AnimationType(reader.read_int())
if self.m_AnimationType == AnimationType.kLegacy: #
self.m_Legacy = True
else:
self.m_Legacy = True
self.m_Compressed = reader.read_boolean()
if version >= (4, 3): # 4.3 and up
self.m_UseHighQualityCurve = reader.read_boolean()
reader.align_stream()
numRCurves = reader.read_int()
self.m_RotationCurves = [QuaternionCurve(reader) for _ in range(numRCurves)]
numCRCurves = reader.read_int()
self.m_CompressedRotationCurves = [
CompressedAnimationCurve(reader) for _ in range(numCRCurves)
]
if version >= (5, 3): # 5.3 and up
numEulerCurves = reader.read_int()
self.m_EulerCurves = [Vector3Curve(reader) for _ in range(numEulerCurves)]
numPCurves = reader.read_int()
self.m_PositionCurves = [Vector3Curve(reader) for _ in range(numPCurves)]
numSCurves = reader.read_int()
self.m_ScaleCurves = [Vector3Curve(reader) for _ in range(numSCurves)]
numFCurves = reader.read_int()
self.m_FloatCurves = [FloatCurve(reader) for _ in range(numFCurves)]
if version >= (4, 3): # 4.3 and up
numPtrCurves = reader.read_int()
self.m_PPtrCurves = [PPtrCurve(reader) for _ in range(numPtrCurves)]
self.m_SampleRate = reader.read_float()
self.m_WrapMode = reader.read_int()
if version >= (3, 4): # 3.4 and up
self.m_Bounds = AABB(reader)
if version >= (4,): # 4.0 and up
self.m_MuscleClipSize = reader.read_u_int()
self.m_MuscleClip = ClipMuscleConstant(reader)
if version >= (4, 3): # 4.3 and up
self.m_ClipBindingConstant = AnimationClipBindingConstant(reader)
# m_HasGenericRootTransform 2018.3
# m_HasMotionFloatCurves 2018.3
# numEvents = reader.read_int()
# self.m_Events = [
# AnimationEvent(reader)
# for _ in range(numEvents)
# ]