private static bool ReadData(BinaryReader file, ref ANMFile data, Logger logger)
{
bool result = true;
try
{
// File Header Information.
data.id = new String(file.ReadChars(ANMFile.ID_SIZE));
data.version = file.ReadUInt32();
// Version 0, 1, 2, 3 Code
if (data.version == 0 ||
data.version == 1 ||
data.version == 2 ||
data.version == 3)
{
//
// Header information specific to these versions.
//
data.magic = file.ReadUInt32();
data.numberOfBones = file.ReadUInt32();
data.numberOfFrames = file.ReadUInt32();
data.playbackFPS = file.ReadUInt32();
// Read in all the bones
for (UInt32 i = 0; i < data.numberOfBones; ++i)
{
ANMBone bone = new ANMBone();
bone.name = new String(file.ReadChars(ANMBone.BONE_NAME_LENGTH));
bone.name = RemoveAnimationNamePadding(bone.name);
bone.name = bone.name.ToLower();
// Unknown
file.ReadUInt32();
// For each bone, read in its value at each frame in the animation.
for (UInt32 j = 0; j < data.numberOfFrames; ++j)
{
ANMFrame frame = new ANMFrame();
// Read in the frame's quaternion.
frame.orientation[0] = file.ReadSingle(); // x
frame.orientation[1] = file.ReadSingle(); // y
frame.orientation[2] = file.ReadSingle(); // z
frame.orientation[3] = file.ReadSingle(); // w
// Read in the frame's position.
frame.position[0] = file.ReadSingle(); // x
frame.position[1] = file.ReadSingle(); // y
frame.position[2] = file.ReadSingle(); // z
bone.frames.Add(frame);
}
data.bones.Add(bone);
}
}
// Version 4 Code
else if (data.version == 4)
{
//
// Based on the reverse engineering work of Hossein Ahmadi.
//
// In this version, position vectors and orientation quaternions are
// stored separately in sorted, keyed blocks. The assumption is Riot
// is removing duplicate vectors and quaternions by using an indexing scheme
// to look up values.
//
// So, after the header, there are three data sections: a vector section, a quaternion
// section, and a look up section. The number of vectors and quaternions
// may not match the expected value based on the number of frames and bones. However,
// the number of look ups should match this value and can be used to create the animation.
//
// Header information specific to version 4.
//
data.magic = file.ReadUInt32();
// Not sure what any of these mean.
float unknown = file.ReadSingle();
unknown = file.ReadSingle();
unknown = file.ReadSingle();
data.numberOfBones = file.ReadUInt32();
data.numberOfFrames = file.ReadUInt32();
// Time per frame is stored in this file type. Need to invert it into FPS.
data.playbackFPS = (UInt32) Math.Round(1.0f / file.ReadSingle());
// These are offsets to specific data sections in the file.
UInt32 unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
UInt32 positionOffset = file.ReadUInt32();
UInt32 orientationOffset = file.ReadUInt32();
UInt32 indexOffset = file.ReadUInt32();
// These last three values are confusing.
// They aren't a vector and they throw off the offset values
// by 12 bytes. Just ignore them and keep reading.
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
//
// Vector section.
//
List<float> positions = new List<float>();
UInt32 numberOfPositions = (orientationOffset - positionOffset) / sizeof(float);
for (UInt32 i = 0; i < numberOfPositions; ++i)
{
positions.Add(file.ReadSingle());
}
//
// Quaternion section.
//
List<float> orientations = new List<float>();
UInt32 numberOfOrientations = (indexOffset - orientationOffset) / sizeof(float);
for (UInt32 i = 0; i < numberOfOrientations; ++i)
{
orientations.Add(file.ReadSingle());
}
//
// Offset section.
//
// Note: Unlike versions 0-3, data in this version is
// Frame 1:
// Bone 1:
// Bone 2:
// ...
// Frame 2:
// Bone 1:
// ...
//
Dictionary<UInt32, ANMBone> boneMap = new Dictionary<UInt32, ANMBone>();
for (Int32 i = 0; i < data.numberOfBones; ++i)
{
//
// The first frame is a special case since we are allocating bones
// as we read them in.
//
// Read in the offset data.
UInt32 boneID = file.ReadUInt32();
UInt16 positionID = file.ReadUInt16();
UInt16 unknownIndex = file.ReadUInt16(); // Unknown.
UInt16 orientationID = file.ReadUInt16();
unknownIndex = file.ReadUInt16(); // Unknown. Seems to always be zero.
// Allocate the bone.
ANMBone bone = new ANMBone();
bone.id = boneID;
// Allocate all the frames for the bone.
for (int j = 0; j < data.numberOfFrames; ++j)
{
bone.frames.Add(new ANMFrame());
}
// Retrieve the data for the first frame.
ANMFrame frame = bone.frames[0];
frame.position = LookUpVector(positionID, positions);
frame.orientation = LookUpQuaternion(orientationID, orientations);
// Store the bone in the dictionary by bone ID.
boneMap[boneID] = bone;
}
Int32 currentFrame = 1;
Int32 currentBone = 0;
UInt32 numberOfLookUps = (data.numberOfFrames - 1) * data.numberOfBones;
for (UInt32 i = 0; i < numberOfLookUps; ++i)
{
//
// Normal case for all frames after the first.
//
// Read in the offset data.
UInt32 boneID = file.ReadUInt32();
UInt16 positionID = file.ReadUInt16();
UInt16 unknownIndex = file.ReadUInt16(); // Unknown.
UInt16 orientationID = file.ReadUInt16();
unknownIndex = file.ReadUInt16(); // Unknown. Seems to always be zero.
// Retrieve the bone from the dictionary.
// Note: The bones appear to be in the same order in every frame. So, a dictionary
// isn't exactly needed and you could probably get away with a list. However, this way
// feels safer just in case something ends up being out of order.
ANMBone bone = boneMap[boneID];
ANMFrame frame = bone.frames[currentFrame];
frame.position = LookUpVector(positionID, positions);
frame.orientation = LookUpQuaternion(orientationID, orientations);
// This loop is slightly ambiguous.
//
// The problem is previous .anm versions contain data like:
// foreach bone
// foreach frame
//
// However, this version contains data like:
// foreach frame
// foreach bone
//
// So, reading one version is going to be a little goofy.
currentBone++;
if (currentBone >= data.numberOfBones)
{
currentBone = 0;
currentFrame++;
}
}
// Finally, we need to move all the data from the dictionary into the ANMFile.
foreach(var bone in boneMap)
{
data.bones.Add(bone.Value);
}
// Currently returning false for this version. We can not render this version correctly yet.
// So, we need to tell the viewer not to try and load it.
result = false;
}
// Unknown version
else
{
logger.Error("Unknown anm version: " + data.version);
result = false;
}
}
catch(Exception e)
{
logger.Error("Anm reading error.");
logger.Error(e.Message);
result = false;
}
logger.Event("File ID: " + data.id);
logger.Event("Magic: " + data.magic);
logger.Event("Version: " + data.version);
logger.Event("Number of Bones: " + data.numberOfBones);
logger.Event("Number of Frames: " + data.numberOfFrames);
logger.Event("Playback FPS: " + data.playbackFPS);
return result;
}
private static bool ReadData(BinaryReader file, ref ANMFile data, Logger logger)
{
bool result = true;
try
{
// File Header Information.
data.id = new String(file.ReadChars(ANMFile.ID_SIZE));
data.version = file.ReadUInt32();
// Version 0, 1, 2, 3 Code
if (data.version == 0 ||
data.version == 1 ||
data.version == 2 ||
data.version == 3)
{
//
// Header information specific to these versions.
//
data.magic = file.ReadUInt32();
data.numberOfBones = file.ReadUInt32();
data.numberOfFrames = file.ReadUInt32();
data.playbackFPS = file.ReadUInt32();
// Read in all the bones
for (UInt32 i = 0; i < data.numberOfBones; ++i)
{
ANMBone bone = new ANMBone();
bone.name = new String(file.ReadChars(ANMBone.BONE_NAME_LENGTH));
bone.name = RemoveAnimationNamePadding(bone.name);
bone.name = bone.name.ToLower();
// Unknown
file.ReadUInt32();
// For each bone, read in its value at each frame in the animation.
for (UInt32 j = 0; j < data.numberOfFrames; ++j)
{
ANMFrame frame = new ANMFrame();
// Read in the frame's quaternion.
frame.orientation[0] = file.ReadSingle(); // x
frame.orientation[1] = file.ReadSingle(); // y
frame.orientation[2] = file.ReadSingle(); // z
frame.orientation[3] = file.ReadSingle(); // w
// Read in the frame's position.
frame.position[0] = file.ReadSingle(); // x
frame.position[1] = file.ReadSingle(); // y
frame.position[2] = file.ReadSingle(); // z
bone.frames.Add(frame);
}
data.bones.Add(bone);
}
}
// Version 4 Code
else if (data.version == 4)
{
//
// Based on the reverse engineering work of Hossein Ahmadi.
//
// In this version, position vectors and orientation quaternions are
// stored separately in sorted, keyed blocks. The assumption is Riot
// is removing duplicate vectors and quaternions by using an indexing scheme
// to look up values.
//
// So, after the header, there are three data sections: a vector section, a quaternion
// section, and a look up section. The number of vectors and quaternions
// may not match the expected value based on the number of frames and bones. However,
// the number of look ups should match this value and can be used to create the animation.
//
// Header information specific to version 4.
//
data.magic = file.ReadUInt32();
// Not sure what any of these mean.
float unknown = file.ReadSingle();
unknown = file.ReadSingle();
unknown = file.ReadSingle();
data.numberOfBones = file.ReadUInt32();
data.numberOfFrames = file.ReadUInt32();
// Time per frame is stored in this file type. Need to invert it into FPS.
data.playbackFPS = (UInt32)Math.Round(1.0f / file.ReadSingle());
// These are offsets to specific data sections in the file.
UInt32 unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
UInt32 positionOffset = file.ReadUInt32();
UInt32 orientationOffset = file.ReadUInt32();
UInt32 indexOffset = file.ReadUInt32();
// These last three values are confusing.
// They aren't a vector and they throw off the offset values
// by 12 bytes. Just ignore them and keep reading.
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
unknownOffset = file.ReadUInt32();
//
// Vector section.
//
List <float> positions = new List <float>();
UInt32 numberOfPositions = (orientationOffset - positionOffset) / sizeof(float);
for (UInt32 i = 0; i < numberOfPositions; ++i)
{
positions.Add(file.ReadSingle());
}
//
// Quaternion section.
//
List <float> orientations = new List <float>();
UInt32 numberOfOrientations = (indexOffset - orientationOffset) / sizeof(float);
for (UInt32 i = 0; i < numberOfOrientations; ++i)
{
orientations.Add(file.ReadSingle());
}
//
// Offset section.
//
// Note: Unlike versions 0-3, data in this version is
// Frame 1:
// Bone 1:
// Bone 2:
// ...
// Frame 2:
// Bone 1:
// ...
//
Dictionary <UInt32, ANMBone> boneMap = new Dictionary <UInt32, ANMBone>();
for (Int32 i = 0; i < data.numberOfBones; ++i)
{
//
// The first frame is a special case since we are allocating bones
// as we read them in.
//
// Read in the offset data.
UInt32 boneID = file.ReadUInt32();
UInt16 positionID = file.ReadUInt16();
UInt16 unknownIndex = file.ReadUInt16(); // Unknown.
UInt16 orientationID = file.ReadUInt16();
unknownIndex = file.ReadUInt16(); // Unknown. Seems to always be zero.
// Allocate the bone.
ANMBone bone = new ANMBone();
bone.id = boneID;
// Allocate all the frames for the bone.
for (int j = 0; j < data.numberOfFrames; ++j)
{
bone.frames.Add(new ANMFrame());
}
// Retrieve the data for the first frame.
ANMFrame frame = bone.frames[0];
frame.position = LookUpVector(positionID, positions);
frame.orientation = LookUpQuaternion(orientationID, orientations);
// Store the bone in the dictionary by bone ID.
boneMap[boneID] = bone;
}
Int32 currentFrame = 1;
Int32 currentBone = 0;
UInt32 numberOfLookUps = (data.numberOfFrames - 1) * data.numberOfBones;
for (UInt32 i = 0; i < numberOfLookUps; ++i)
{
//
// Normal case for all frames after the first.
//
// Read in the offset data.
UInt32 boneID = file.ReadUInt32();
UInt16 positionID = file.ReadUInt16();
UInt16 unknownIndex = file.ReadUInt16(); // Unknown.
UInt16 orientationID = file.ReadUInt16();
unknownIndex = file.ReadUInt16(); // Unknown. Seems to always be zero.
// Retrieve the bone from the dictionary.
// Note: The bones appear to be in the same order in every frame. So, a dictionary
// isn't exactly needed and you could probably get away with a list. However, this way
// feels safer just in case something ends up being out of order.
ANMBone bone = boneMap[boneID];
ANMFrame frame = bone.frames[currentFrame];
frame.position = LookUpVector(positionID, positions);
frame.orientation = LookUpQuaternion(orientationID, orientations);
// This loop is slightly ambiguous.
//
// The problem is previous .anm versions contain data like:
// foreach bone
// foreach frame
//
// However, this version contains data like:
// foreach frame
// foreach bone
//
// So, reading one version is going to be a little goofy.
currentBone++;
if (currentBone >= data.numberOfBones)
{
currentBone = 0;
currentFrame++;
}
}
// Finally, we need to move all the data from the dictionary into the ANMFile.
foreach (var bone in boneMap)
{
data.bones.Add(bone.Value);
}
// Currently returning false for this version. We can not render this version correctly yet.
// So, we need to tell the viewer not to try and load it.
result = false;
}
// Unknown version
else
{
logger.Error("Unknown anm version: " + data.version);
result = false;
}
}
catch (Exception e)
{
logger.Error("Anm reading error.");
logger.Error(e.Message);
result = false;
}
logger.Event("File ID: " + data.id);
logger.Event("Magic: " + data.magic);
logger.Event("Version: " + data.version);
logger.Event("Number of Bones: " + data.numberOfBones);
logger.Event("Number of Frames: " + data.numberOfFrames);
logger.Event("Playback FPS: " + data.playbackFPS);
return(result);
}
