public BinBVHAnimation(byte[] animationdata)
{
int i = 0;
if (!BitConverter.IsLittleEndian)
{
unknown0 = Utils.BytesToUInt16(BinBVHUtil.EndianSwap(animationdata, i, 2)); i += 2; // Always 1
unknown1 = Utils.BytesToUInt16(BinBVHUtil.EndianSwap(animationdata, i, 2)); i += 2; // Always 0
Priority = Utils.BytesToInt(BinBVHUtil.EndianSwap(animationdata, i, 4)); i += 4;
Length = Utils.BytesToFloat(BinBVHUtil.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(BinBVHUtil.EndianSwap(animationdata, i, 4), 0); i += 4;
OutPoint = Utils.BytesToFloat(BinBVHUtil.EndianSwap(animationdata, i, 4), 0); i += 4;
Loop = (Utils.BytesToInt(BinBVHUtil.EndianSwap(animationdata, i, 4)) != 0); i += 4;
EaseInTime = Utils.BytesToFloat(BinBVHUtil.EndianSwap(animationdata, i, 4), 0); i += 4;
EaseOutTime = Utils.BytesToFloat(BinBVHUtil.EndianSwap(animationdata, i, 4), 0); i += 4;
HandPose = Utils.BytesToUInt(BinBVHUtil.EndianSwap(animationdata, i, 4)); i += 4; // Handpose?
m_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?
m_jointCount = Utils.BytesToUInt(animationdata, i); i += 4; // Get Joint count
}
Joints = new binBVHJoint[m_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 < m_jointCount; iter++)
{
binBVHJoint joint = readJoint(animationdata, ref i);
Joints[iter] = joint;
}
}
/// <summary>
/// Read Keyframes of a certain type
/// advance i
/// </summary>
/// <param name="data">Animation Byte array</param>
/// <param name="i">Offset in the Byte Array. Will be advanced</param>
/// <param name="keycount">Number of Keyframes</param>
/// <param name="min">Scaling Min to pass to the Uint16ToFloat method</param>
/// <param name="max">Scaling Max to pass to the Uint16ToFloat method</param>
/// <returns></returns>
private binBVHJointKey[] readKeys(byte[] data, ref int i, int keycount, float min, float max)
{
float x;
float y;
float z;
/*
* 0.o, Float values in Two bytes.. this is just wrong >:(
* 17 255 <-- Time Code
* 17 255 <-- Time Code
* 255 255 <-- X
* 127 127 <-- X
* 255 255 <-- Y
* 127 127 <-- Y
* 213 213 <-- Z
* 142 142 <---Z
*
*/
binBVHJointKey[] m_keys = new binBVHJointKey[keycount];
for (int j = 0; j < keycount; j++)
{
binBVHJointKey pJKey = new binBVHJointKey();
if (!BitConverter.IsLittleEndian)
{
pJKey.time = Utils.UInt16ToFloat(BinBVHUtil.EndianSwap(data, i, 2), 0, InPoint, OutPoint); i += 2;
x = Utils.UInt16ToFloat(BinBVHUtil.EndianSwap(data, i, 2), 0, min, max); i += 2;
y = Utils.UInt16ToFloat(BinBVHUtil.EndianSwap(data, i, 2), 0, min, max); i += 2;
z = Utils.UInt16ToFloat(BinBVHUtil.EndianSwap(data, i, 2), 0, min, max); i += 2;
}
else
{
pJKey.time = Utils.UInt16ToFloat(data, i, InPoint, OutPoint); i += 2;
x = Utils.UInt16ToFloat(data, i, min, max); i += 2;
y = Utils.UInt16ToFloat(data, i, min, max); i += 2;
z = Utils.UInt16ToFloat(data, i, min, max); i += 2;
}
pJKey.key_element = new Vector3(x, y, z);
m_keys[j] = pJKey;
}
return(m_keys);
}
/// <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>
private 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(BinBVHUtil.EndianSwap(data, i, 4)); i += 4; // Joint Priority override?
rotationkeys = Utils.BytesToInt(BinBVHUtil.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
}
// argh! floats into two bytes!.. bad bad bad bad
// After fighting with it for a while.. -1, to 1 seems to give the best results
rotations = readKeys(data, ref i, rotationkeys, -1f, 1f);
if (!BitConverter.IsLittleEndian)
{
positionkeys = Utils.BytesToInt(BinBVHUtil.EndianSwap(data, i, 4)); i += 4; // How many position keyframes
}
else
{
positionkeys = Utils.BytesToInt(data, i); i += 4; // How many position keyframes
}
// Read in position keyframes
// argh! more floats into two bytes!.. *head desk*
// After fighting with it for a while.. -5, to 5 seems to give the best results
positions = readKeys(data, ref i, positionkeys, -5f, 5f);
pJoint.rotationkeys = rotations;
pJoint.positionkeys = positions;
return(pJoint);
}