public static void ReadMD21(MemoryStream ms, M2Data m2Data, M2Texture m2Tex)
{
long md20position = ms.Position;
StreamTools s = new StreamTools();
int MD20 = s.ReadLong(ms); // "MD20". Legion uses a chunked file format starting with MD21.
int version = s.ReadLong(ms);
M2Array name = s.ReadM2Array(ms); // should be globally unique, used to reload by name in internal clients
var flags = s.ReadLong(ms);
M2Array global_loops = s.ReadM2Array(ms); // Timestamps used in global looping animations.
M2Array sequences = s.ReadM2Array(ms); // Information about the animations in the model.
M2Array sequences_lookups = s.ReadM2Array(ms); // Mapping of sequence IDs to the entries in the Animation sequences block.
M2Array bones = s.ReadM2Array(ms); // MAX_BONES = 0x100 => Creature\SlimeGiant\GiantSlime.M2 has 312 bones(Wrath)
M2Array key_bone_lookup = s.ReadM2Array(ms); // Lookup table for key skeletal bones.
M2Array vertices = s.ReadM2Array(ms);
int num_skin_profiles = s.ReadLong(ms);
M2Array colors = s.ReadM2Array(ms); // Color and alpha animations definitions.
M2Array textures = s.ReadM2Array(ms);
M2Array texture_weights = s.ReadM2Array(ms); // Transparency of textures.
M2Array texture_transforms = s.ReadM2Array(ms);
M2Array replaceable_texture_lookup = s.ReadM2Array(ms);
M2Array materials = s.ReadM2Array(ms); // Blending modes / render flags.
M2Array bone_lookup_table = s.ReadM2Array(ms);
M2Array texture_lookup_table = s.ReadM2Array(ms);
M2Array tex_unit_lookup_table = s.ReadM2Array(ms); // ≥ Cata: unused
M2Array transparency_lookup_table = s.ReadM2Array(ms);
M2Array texture_transforms_lookup_table = s.ReadM2Array(ms);
m2Data.bounding_box = s.ReadBoundingBox(ms); // min/max( [1].z, 2.0277779f ) - 0.16f seems to be the maximum camera height
float bounding_sphere_radius = s.ReadFloat(ms); // detail doodad draw dist = clamp (bounding_sphere_radius * detailDoodadDensityFade * detailDoodadDist, …)
BoundingBox collision_box = s.ReadBoundingBox(ms);
float collision_sphere_radius = s.ReadFloat(ms);
M2Array collision_triangles = s.ReadM2Array(ms);
M2Array collision_vertices = s.ReadM2Array(ms);
M2Array collision_normals = s.ReadM2Array(ms);
M2Array attachments = s.ReadM2Array(ms); // position of equipped weapons or effects
M2Array attachment_lookup_table = s.ReadM2Array(ms);
M2Array events = s.ReadM2Array(ms); // Used for playing sounds when dying and a lot else.
M2Array lights = s.ReadM2Array(ms); // Lights are mainly used in loginscreens but in wands and some doodads too.
M2Array cameras = s.ReadM2Array(ms); // The cameras are present in most models for having a model in the character tab.
M2Array camera_lookup_table = s.ReadM2Array(ms);
M2Array ribbon_emitters = s.ReadM2Array(ms); // Things swirling around. See the CoT-entrance for light-trails.
M2Array particle_emitters = s.ReadM2Array(ms);
// Name //
ms.Position = name.offset + md20position;
for (int n = 0; n < name.size; n++)
{
m2Data.name += Convert.ToChar(ms.ReadByte());
}
// Bones //
ms.Position = bones.offset + md20position;
M2TrackBase[] translationM2track = new M2TrackBase[bones.size];
M2TrackBase[] rotationM22track = new M2TrackBase[bones.size];
M2TrackBase[] scaleM22track = new M2TrackBase[bones.size];
for (int cb = 0; cb < bones.size; cb++)
{
M2CompBone m2CompBone = new M2CompBone();
m2CompBone.key_bone_id = s.ReadLong(ms); // Back-reference to the key bone lookup table. -1 if this is no key bone.
m2CompBone.flags = s.ReadUint32(ms);
m2CompBone.parent_bone = s.ReadShort(ms);
m2CompBone.submesh_id = s.ReadUint16(ms);
m2CompBone.uDistToFurthDesc = s.ReadUint16(ms);
m2CompBone.uZRatioOfChain = s.ReadUint16(ms);
translationM2track[cb] = s.ReadM2Track(ms);
rotationM22track[cb] = s.ReadM2Track(ms);
scaleM22track[cb] = s.ReadM2Track(ms);
Vector3 pivotRaw = new Vector3(s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale);
m2CompBone.pivot = new Vector3(-pivotRaw.x, pivotRaw.z, -pivotRaw.y);
m2Data.m2CompBone.Add(m2CompBone);
}
// Animations //
int numberOfAnimations = 0;
for (int ab = 0; ab < bones.size; ab++)
{
List <Animation_Vector3> bone_position_animations = new List <Animation_Vector3>();
List <Animation_Quaternion> bone_rotation_animations = new List <Animation_Quaternion>();
List <Animation_Vector3> bone_scale_animations = new List <Animation_Vector3>();
// Position //
int numberOfPositionAnimations = translationM2track[ab].Timestamps.size;
if (numberOfAnimations < numberOfPositionAnimations)
{
numberOfAnimations = numberOfPositionAnimations;
}
for (int at = 0; at < numberOfPositionAnimations; at++)
{
Animation bone_animation = new Animation();
Animation_Vector3 positions = new Animation_Vector3();
// Timestamps //
List <int> timeStamps = new List <int>();
ms.Position = translationM2track[ab].Timestamps.offset + md20position;
M2Array m2AnimationOffset = s.ReadM2Array(ms);
ms.Position = m2AnimationOffset.offset;
for (int t = 0; t < m2AnimationOffset.size; t++)
{
timeStamps.Add(s.ReadLong(ms));
}
positions.timeStamps = timeStamps;
// Values //
List <Vector3> values = new List <Vector3>();
ms.Position = translationM2track[ab].Values.offset + md20position;
M2Array m2AnimationValues = s.ReadM2Array(ms);
ms.Position = m2AnimationValues.offset;
for (int t = 0; t < m2AnimationValues.size; t++)
{
Vector3 rawPosition = new Vector3(s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale);
values.Add(new Vector3(-rawPosition.x, rawPosition.z, -rawPosition.y));
}
positions.values = values;
bone_position_animations.Add(positions);
}
// Rotation //
int numberOfRotationAnimations = rotationM22track[ab].Timestamps.size;
if (numberOfAnimations < numberOfRotationAnimations)
{
numberOfAnimations = numberOfRotationAnimations;
}
for (int ar = 0; ar < numberOfRotationAnimations; ar++)
{
Animation_Quaternion rotations = new Animation_Quaternion();
// Timestamps //
List <int> timeStamps = new List <int>();
ms.Position = rotationM22track[ab].Timestamps.offset + md20position;
M2Array m2AnimationOffset = s.ReadM2Array(ms);
ms.Position = m2AnimationOffset.offset;
for (int t = 0; t < m2AnimationOffset.size; t++)
{
timeStamps.Add(s.ReadLong(ms));
}
rotations.timeStamps = timeStamps;
// Values //
List <Quaternion> values = new List <Quaternion>();
ms.Position = rotationM22track[ab].Values.offset + md20position;
M2Array m2AnimationValues = s.ReadM2Array(ms);
ms.Position = m2AnimationValues.offset;
for (int t = 0; t < m2AnimationValues.size; t++)
{
Quaternion rawRotation = s.ReadQuaternion16(ms);
values.Add(new Quaternion(rawRotation.x, rawRotation.y, rawRotation.z, rawRotation.w));
}
rotations.values = values;
bone_rotation_animations.Add(rotations);
}
// Scale //
int numberOfScaleAnimations = scaleM22track[ab].Timestamps.size;
if (numberOfAnimations < numberOfScaleAnimations)
{
numberOfAnimations = numberOfScaleAnimations;
}
for (int aS = 0; aS < numberOfScaleAnimations; aS++)
{
Animation_Vector3 scales = new Animation_Vector3();
// Timestamps //
List <int> timeStamps = new List <int>();
ms.Position = scaleM22track[ab].Timestamps.offset + md20position;
M2Array m2AnimationOffset = s.ReadM2Array(ms);
ms.Position = m2AnimationOffset.offset;
for (int t = 0; t < m2AnimationOffset.size; t++)
{
timeStamps.Add(s.ReadLong(ms));
}
scales.timeStamps = timeStamps;
// Values //
List <Vector3> values = new List <Vector3>();
ms.Position = scaleM22track[ab].Values.offset + md20position;
M2Array m2AnimationValues = s.ReadM2Array(ms);
ms.Position = m2AnimationValues.offset;
for (int t = 0; t < m2AnimationValues.size; t++)
{
Vector3 rawScale = new Vector3(s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale);
values.Add(new Vector3(-rawScale.x, rawScale.z, -rawScale.y));
}
scales.values = values;
bone_scale_animations.Add(scales);
}
//Debug.Log(numberOfPositionAnimations + " " + numberOfRotationAnimations + " " + numberOfScaleAnimations);
m2Data.position_animations.Add(bone_position_animations);
m2Data.rotation_animations.Add(bone_rotation_animations);
m2Data.scale_animations.Add(bone_scale_animations);
}
m2Data.numberOfAnimations = numberOfAnimations;
// Bone Lookup Table //
ms.Position = bone_lookup_table.offset + md20position;
for (int blt = 0; blt < key_bone_lookup.size; blt++)
{
m2Data.bone_lookup_table.Add(s.ReadUint16(ms));
}
// Key-Bone Lookup //
ms.Position = key_bone_lookup.offset + md20position;
for (int kbl = 0; kbl < key_bone_lookup.size; kbl++)
{
m2Data.key_bone_lookup.Add(s.ReadShort(ms));
}
// Vertices //
ms.Position = vertices.offset + md20position;
m2Data.meshData = new MeshData();
for (int v = 0; v < vertices.size; v++)
{
Vector3 rawPosition = new Vector3(s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale, s.ReadFloat(ms) / Settings.worldScale);
m2Data.meshData.pos.Add(new Vector3(-rawPosition.x, rawPosition.z, -rawPosition.y));
m2Data.meshData.bone_weights.Add(new float[] { ms.ReadByte() / 255.0f, ms.ReadByte() / 255.0f, ms.ReadByte() / 255.0f, ms.ReadByte() / 255.0f });
m2Data.meshData.bone_indices.Add(new int[] { ms.ReadByte(), ms.ReadByte(), ms.ReadByte(), ms.ReadByte() });
//Debug.Log(m2Data.meshData.bone_indices[v][0] + " " + m2Data.meshData.bone_indices[v][1] + " " + m2Data.meshData.bone_indices[v][2] + " " + m2Data.meshData.bone_indices[v][3]);
Vector3 rawnormal = new Vector3(s.ReadFloat(ms) * Settings.worldScale, s.ReadFloat(ms) * Settings.worldScale, s.ReadFloat(ms) * Settings.worldScale);
m2Data.meshData.normal.Add(new Vector3(-rawnormal.x, rawnormal.z, -rawnormal.y));
m2Data.meshData.tex_coords.Add(new Vector2(s.ReadFloat(ms), s.ReadFloat(ms)));
m2Data.meshData.tex_coords2.Add(new Vector2(s.ReadFloat(ms), s.ReadFloat(ms)));
}
// Textures //
ms.Position = textures.offset + md20position;
for (int t = 0; t < textures.size; t++)
{
M2Texture m2Texture = new M2Texture();
m2Texture.type = s.ReadLong(ms);
m2Texture.flags = s.ReadLong(ms);
M2Array filename = s.ReadM2Array(ms);
// seek to filename and read //
long savePosition = ms.Position;
ms.Position = filename.offset + md20position;
string fileNameString = "";
for (int n = 0; n < filename.size; n++)
{
fileNameString += Convert.ToChar(ms.ReadByte());
}
ms.Position = savePosition;
string fileNameStringFix = fileNameString.TrimEnd(fileNameString[fileNameString.Length - 1]);
m2Texture.filename = fileNameStringFix;
Texture2Ddata texture2Ddata = new Texture2Ddata();
if (fileNameStringFix.Length > 1)
{
if (!LoadedBLPs.Contains(fileNameStringFix))
{
string extractedPath = Casc.GetFile(fileNameStringFix);
Stream stream = File.Open(extractedPath, FileMode.Open);
BLP blp = new BLP();
byte[] data = blp.GetUncompressed(stream, true);
BLPinfo info = blp.Info();
texture2Ddata.hasMipmaps = info.hasMipmaps;
texture2Ddata.width = info.width;
texture2Ddata.height = info.height;
texture2Ddata.textureFormat = info.textureFormat;
texture2Ddata.TextureData = data;
m2Texture.texture2Ddata = texture2Ddata;
stream.Close();
stream.Dispose();
stream = null;
LoadedBLPs.Add(fileNameString);
}
}
m2Data.m2Tex.Add(m2Texture);
}
// texture_lookup_table //
ms.Position = texture_lookup_table.offset + md20position;
for (int tl = 0; tl < texture_lookup_table.size; tl++)
{
m2Data.textureLookupTable.Add(s.ReadUint16(ms));
}
}