/// <summary>
/// Searialize an animation asset into it's joints/keyframes/meta data
/// </summary>
/// <param name="animationdata"></param>
public BinBVHAnimationReader(byte[] animationdata)
{
int i = 0;
if (!BitConverter.IsLittleEndian)
{
unknown0 = Utils.BytesToUInt16(EndianSwap(animationdata, i, 2)); i += 2; // Always 1
unknown1 = Utils.BytesToUInt16(EndianSwap(animationdata, i, 2)); i += 2; // Always 0
Priority = Utils.BytesToInt(EndianSwap(animationdata, i, 4)); i += 4;
Length = Utils.BytesToFloat(EndianSwap(animationdata, i, 4), 0); i += 4;
}
else
{
unknown0 = Utils.BytesToUInt16(animationdata, i); i += 2; // Always 1
unknown1 = Utils.BytesToUInt16(animationdata, i); i += 2; // Always 0
Priority = Utils.BytesToInt(animationdata, i); i += 4;
Length = Utils.BytesToFloat(animationdata, i); i += 4;
}
ExpressionName = ReadBytesUntilNull(animationdata, ref i);
if (!BitConverter.IsLittleEndian)
{
InPoint = Utils.BytesToFloat(EndianSwap(animationdata, i, 4), 0); i += 4;
OutPoint = Utils.BytesToFloat(EndianSwap(animationdata, i, 4), 0); i += 4;
Loop = (Utils.BytesToInt(EndianSwap(animationdata, i, 4)) != 0); i += 4;
EaseInTime = Utils.BytesToFloat(EndianSwap(animationdata, i, 4), 0); i += 4;
EaseOutTime = Utils.BytesToFloat(EndianSwap(animationdata, i, 4), 0); i += 4;
HandPose = Utils.BytesToUInt(EndianSwap(animationdata, i, 4)); i += 4; // Handpose?
JointCount = Utils.BytesToUInt(animationdata, i); i += 4; // Get Joint count
}
else
{
InPoint = Utils.BytesToFloat(animationdata, i); i += 4;
OutPoint = Utils.BytesToFloat(animationdata, i); i += 4;
Loop = (Utils.BytesToInt(animationdata, i) != 0); i += 4;
EaseInTime = Utils.BytesToFloat(animationdata, i); i += 4;
EaseOutTime = Utils.BytesToFloat(animationdata, i); i += 4;
HandPose = Utils.BytesToUInt(animationdata, i); i += 4; // Handpose?
JointCount = Utils.BytesToUInt(animationdata, i); i += 4; // Get Joint count
}
joints = new binBVHJoint[JointCount];
// deserialize the number of joints in the animation.
// Joints are variable length blocks of binary data consisting of joint data and keyframes
for (int iter = 0; iter < JointCount; iter++)
{
binBVHJoint joint = readJoint(animationdata, ref i);
joints[iter] = joint;
}
}
/// <summary>
/// Read in a Joint from an animation asset byte array
/// Variable length Joint fields, yay!
/// Advances the index
/// </summary>
/// <param name="data">animation asset byte array</param>
/// <param name="i">Byte Offset of the start of the joint</param>
/// <returns>The Joint data serialized into the binBVHJoint structure</returns>
public binBVHJoint readJoint(byte[] data, ref int i)
{
binBVHJointKey[] positions;
binBVHJointKey[] rotations;
binBVHJoint pJoint = new binBVHJoint();
/*
* 109
* 84
* 111
* 114
* 114
* 111
* 0 <--- Null terminator
*/
pJoint.Name = ReadBytesUntilNull(data, ref i); // Joint name
/*
* 2 <- Priority Revisited
* 0
* 0
* 0
*/
/*
* 5 <-- 5 keyframes
* 0
* 0
* 0
* ... 5 Keyframe data blocks
*/
/*
* 2 <-- 2 keyframes
* 0
* 0
* 0
* .. 2 Keyframe data blocks
*/
if (!BitConverter.IsLittleEndian)
{
pJoint.Priority = Utils.BytesToInt(EndianSwap(data, i, 4)); i += 4; // Joint Priority override?
rotationkeys = Utils.BytesToInt(EndianSwap(data, i, 4)); i += 4; // How many rotation keyframes
}
else
{
pJoint.Priority = Utils.BytesToInt(data, i); i += 4; // Joint Priority override?
rotationkeys = Utils.BytesToInt(data, i); i += 4; // How many rotation keyframes
}
// Sanity check how many rotation keys there are
if (rotationkeys < 0 || rotationkeys > 10000)
{
rotationkeys = 0;
}
rotations = readKeys(data, ref i, rotationkeys, -1.0f, 1.0f);
if (!BitConverter.IsLittleEndian)
{
positionkeys = Utils.BytesToInt(EndianSwap(data, i, 4)); i += 4; // How many position keyframes
}
else
{
positionkeys = Utils.BytesToInt(data, i); i += 4; // How many position keyframes
}
// Sanity check how many positions keys there are
if (positionkeys < 0 || positionkeys > 10000)
{
positionkeys = 0;
}
// Read in position keyframes
positions = readKeys(data, ref i, positionkeys, -0.5f, 1.5f);
pJoint.rotationkeys = rotations;
pJoint.positionkeys = positions;
return(pJoint);
}