public Keyframe Copy()
{
Keyframe key = new Keyframe();
key.Position = Position;
key.Rotation = Rotation;
key.Scale = Scale;
key.Time = Time;
return key;
}
public static SEQ FromStream(EndianBinaryReader reader, ContentBase activeSHP)
{
SHP targetSHP = (SHP)activeSHP;
/*=====================================================================
TODO: add lenght
=====================================================================*/
// base ptr needed because the SEQ could be embedded.
uint ptrBase = (uint)reader.BaseStream.Position;
byte numFrames = reader.ReadByte(); // total number of frames?
var unknownPaddingValue1 = reader.ReadByte(); // padding
//Trace.Assert(unknownPaddingValue1 == 0);
byte numBones = reader.ReadByte();
var unknownPaddingValue2 = reader.ReadByte(); // padding
//Trace.Assert(unknownPaddingValue2 == 0);
uint size = reader.ReadUInt32();
var unknownPaddingValue3 = reader.ReadUInt32(); // unknown
//Trace.Assert(unknownPaddingValue3 == 0);
uint ptrFrames = (uint)reader.ReadUInt32() + 8; // pointer to the frames data section
uint ptrSequence = ptrFrames + (uint)numFrames; // pointer to the sequence section
// number of animations
// length of all the headers / length of one animation header
int numAnimations = (((int)ptrSequence - numFrames) - 16) / (numBones * 4 + 10);
List<AnimationHeader> headers = new List<AnimationHeader>();
for (int i = 0; i < numAnimations; i++)
{
AnimationHeader animHeader = new AnimationHeader
{
length = reader.ReadUInt16(),
idOtherAnimation = reader.ReadSByte(), // the intial source animation. Used to get initial frames.
mode = reader.ReadByte(),
ptrLooping = reader.ReadUInt16(), // seems to point to a data block that controls looping
ptrTranslation = reader.ReadUInt16(), // points to a translation vector for the animated mesh (root motion?)
ptrMove = reader.ReadUInt16(), // points to a data block that controls movement (root motion?)
ptrBones = new ushort[numBones],
};
// assign bone ptrs
for (int p = 0; p < numBones; p++)
{
animHeader.ptrBones[p] = reader.ReadUInt16();
}
for (int j = 0; j < numBones; j++)
{
var unknownBoneValues = reader.ReadUInt16(); //TODO: this is 0 for all SEQs?
//Trace.Assert(unknownBoneValues == 0); // will show if value is ever NOT zero
}
headers.Add(animHeader);
}
// TODO: Never used!?
sbyte[] frames = new sbyte[numFrames];
for (int i = 0; i < numFrames; i++)
{
frames[i] = reader.ReadSByte();
}
// get source animation data from .SEQ
List<Animation> animations = new List<Animation>();
for (int i = 0; i < numAnimations; i++)
{
Animation animation = new Animation();
// seek translation data
long seekTranslationPtr = (long)(headers[i].ptrTranslation + ptrSequence + ptrBase);
reader.BaseStream.Seek(seekTranslationPtr, SeekOrigin.Begin);
reader.CurrentEndian = Endian.Big; // this is code used in the opcode portion (machine code uses Big)
Int16 x = reader.ReadInt16();
Int16 y = reader.ReadInt16();
Int16 z = reader.ReadInt16();
reader.CurrentEndian = Endian.Little;
// TODO: implement move
// set base animation
if (headers[i].idOtherAnimation != -1)
{
// TODO: FIX THIS
// should store other animation inside as base
// I assume it only references animations that
// have been constructed first otherwise it will hold a dead copy.
// animation.baseAnimation = animations[i];
}
// read base pose and keyframes
animation.poses = new Vector3[numBones];
animation.keyframes = new List<NullableVector4>[numBones];
for (int k = 0; k < numBones; k++)
{
animation.keyframes[k] = new List<NullableVector4>();
animation.keyframes[k].Add(NullableVector4.Zero());
// read pose
long seekBonePtr = (long)(headers[i].ptrBones[k] + ptrSequence + ptrBase);
reader.BaseStream.Seek(seekBonePtr, SeekOrigin.Begin);
reader.CurrentEndian = Endian.Big; // machine code uses Big
Int16 rx = reader.ReadInt16();
Int16 ry = reader.ReadInt16();
Int16 rz = reader.ReadInt16();
reader.CurrentEndian = Endian.Little;
animation.poses[k] = new Vector3(rx, ry, rz);
// read keyframe
float? f = 0;
while (true)
{
// this could be optimized using out values and an advanced way of recording and reading frames
NullableVector4 op = ReadOPCode(reader);
if (op == null) break;
f += op.W;
animation.keyframes[k].Add(op);
if (f >= headers[i].length - 1) break;
}
}
animations.Add(animation);
}
// build useable animation data
for (int a = 0; a < numAnimations; a++)
{
// rotation bones
for (int i = 0; i < numBones; i++)
{
List<NullableVector4> keyframes = animations[a].keyframes[i];
Vector3 pose = animations[a].poses[i];
// multiplication by two at 0xad25c, 0xad274, 0xad28c
// value * (180f / uint16.max);
float rx = pose.X * 2;
float ry = pose.Y * 2;
float rz = pose.Z * 2;
List<Keyframe> keys = new List<Keyframe>();
float t = 0;
for (var j = 0; j < keyframes.Count; j++)
{
NullableVector4 keyframe = keyframes[j];
float f = (float)keyframe.W;
t += f;
if (keyframe.X == null) keyframe.X = keyframes[j - 1].X;
if (keyframe.Y == null) keyframe.Y = keyframes[j - 1].Y;
if (keyframe.Z == null) keyframe.Z = keyframes[j - 1].Z;
rx += (float)keyframe.X * f;
ry += (float)keyframe.Y * f;
rz += (float)keyframe.Z * f;
Quaternion q = VSTools.Rot2Quat(rx * VSTools.Rot13ToRad, ry * VSTools.Rot13ToRad, rz * VSTools.Rot13ToRad);
Keyframe key = new Keyframe();
key.Time = t * VSTools.TimeScale;
key.Rotation = q;
keys.Add(key);
}
animations[a].jointKeys.Add(keys);
}
// root's translation bone
List<Keyframe> rootKey = new List<Keyframe>();
rootKey.Add(new Keyframe());
animations[a].jointKeys.Add(rootKey);
// translation bones
for (int t = 1; t < numBones; t++)
{
List<Keyframe> transBone = new List<Keyframe>();
Keyframe key = new Keyframe();
key.Position = new Vector3(targetSHP.joints[t].boneLength, 0, 0);
transBone.Add(key);
animations[a].jointKeys.Add(transBone);
}
if (headers[a].idOtherAnimation != -1)
{
animations[a].baseAnimation = animations[headers[a].idOtherAnimation];
}
}
return new SEQ(animations);
}