//////////////////////////////////////////////////////////////////////////////////////////////////////////
public void UpdateBoneHierarchyTransformation() //遍历bone层级，计算各个bone的累计matrix
{
for (int i = 0; i < abi.hierarchy.Length; i++)
{
if (!boneused[i])
{
continue; //当前动画没有使用该骨头，跳过
}
int parent = abi.hierarchy[i].ParentIdx;
BoneHierarchy bh = abi.hierarchy[i];
if (parent == -1) //root bone,无需更新
{
#region 便于理解版本
//global_tranf[i] = local_transf[i] * Matrix.Translation(bh.GlobalOffset);
#endregion
#region 优化计算版本
global_tranf[i] = local_transf[i];
global_tranf[i].M41 += bh.GlobalOffset.X;
global_tranf[i].M42 += bh.GlobalOffset.Y;
global_tranf[i].M43 += bh.GlobalOffset.Z;
#endregion
}
else
{
BoneHierarchy bph = abi.hierarchy[parent];
Vector3 dt = bh.GlobalOffset - bph.GlobalOffset;
#region 便于理解版本
//global_tranf[i] = local_transf[i] * Matrix.Translation(dt) * global_tranf[parent];
#endregion
#region 优化计算版本
global_tranf[i] = local_transf[i];
global_tranf[i].M41 += dt.X;
global_tranf[i].M42 += dt.Y;
global_tranf[i].M43 += dt.Z;
global_tranf[i] *= global_tranf[parent];
#endregion
}
}
}
public Animation[] animations; //num_animation个
///////////////////////////////////////////////////////////////////////////////////////////////////////////
public ABI(string filename)
{
this.filename = filename;
FileInfo fi = new FileInfo(filename);
this.filename = fi.Name;
using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read))
{
using (BinaryReader br = new BinaryReader(fs))
{
int sign = br.ReadInt32();;
Debug.Assert(sign == 0x424d444c);
version = int.Parse(ConvertBytesToString(br.ReadBytes(4)));
Debug.Assert(version == 1060 || version == 1050, "此ABI文件的版本不是1050或1060!");
num_timeaxis = br.ReadInt32();
num_animation = br.ReadInt32();
num_texture = br.ReadInt32();
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//所有贴图
textureinfos = new TextureInfo[num_texture];
for (int i = 0; i < num_texture; i++)
{
textureinfos[i] = new TextureInfo();
textureinfos[i].UNKNOWN = br.ReadInt32();
textureinfos[i].width = br.ReadInt32();
textureinfos[i].height = br.ReadInt32();
textureinfos[i].name = ConvertBytesToString(br.ReadBytes(32));
textureinfos[i].palette = new uint[256];
for (int j = 0; j < 256; j++)
{
uint r = br.ReadByte();
uint g = br.ReadByte();
uint b = br.ReadByte();
textureinfos[i].palette[j] = 0xff000000 | (r << 16) | (g << 8) | b;
}
textureinfos[i].data = br.ReadBytes(textureinfos[i].width * textureinfos[i].height);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//模型数据
if (version != 1050)
{
br.ReadByte(); //未知标志，并不恒为1，奇怪的是，1050格式里面没有这个自己，而1060却有
}
//Debug.Assert(br.ReadByte() == 1);
num_model = br.ReadInt32();
num_bone = br.ReadInt32();
models = new Model[num_model];
for (int i = 0; i < num_model; i++)
{
Model d = models[i] = new Model();
d.num_vertice = br.ReadInt32();
d.num_polygon = br.ReadInt32();
d.name = ConvertBytesToString(br.ReadBytes(32));
d.vertex = new Vertex[d.num_vertice];
for (int j = 0; j < d.num_vertice; j++)
{
Vertex v = d.vertex[j] = new Vertex();
v.X = br.ReadSingle();
v.Y = br.ReadSingle();
v.Z = br.ReadSingle();
}
d.polygon = new Polygon[d.num_polygon];
for (int j = 0; j < d.num_polygon; j++)
{
Polygon poly = d.polygon[j] = new Polygon();
poly.num_lines = br.ReadByte();
if (poly.num_lines != 3 && poly.num_lines != 4)
{
//的确存在num_lines超过3/4的情况，比方说tiger.abi，num_lines就有为6的情况
//throw new Exception();
}
poly.texture_id = br.ReadByte();
poly.map_points = new Point[poly.num_lines];
for (int k = 0; k < poly.num_lines; k++)
{
Point p = poly.map_points[k] = new Point();
p.vertex_id = br.ReadInt16();
p.U = br.ReadInt16() / 4096f;
p.V = br.ReadInt16() / 4096f;
}
}
d.vbt = new VidToBoneTable();
d.vbt.entry = new VidToBoneTableEntry[num_bone];
for (int j = 0; j < num_bone; j++)
{
d.vbt.entry[j] = new VidToBoneTableEntry();
d.vbt.entry[j].StartVidx = br.ReadInt32();
d.vbt.entry[j].EndVidx = br.ReadInt32(); //要不要-1?
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//骨骼继承结构
hierarchy = new BoneHierarchy[num_bone];
for (int i = 0; i < num_bone; i++)
{
hierarchy[i] = new BoneHierarchy();
hierarchy[i].ParentIdx = br.ReadInt32();
hierarchy[i].GlobalOffset = new Vector3(
br.ReadSingle(),
br.ReadSingle(),
br.ReadSingle());
hierarchy[i].NodeName = ConvertBytesToString(br.ReadBytes(32));
hierarchy[i].UNKNOWN = br.ReadInt32();
Debug.WriteLine(String.Format("{0} - [{1}]:{2}", i, hierarchy[i].ParentIdx, hierarchy[i].NodeName));
Debug.Assert(hierarchy[i].UNKNOWN == 0);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//关键帧、时间轴相关结构
timeaxises = new TransformTimeAxis[num_timeaxis];
for (int i = 0; i < num_timeaxis; i++)
{
TransformTimeAxis ta = timeaxises[i] = new TransformTimeAxis();
ta.trta = new TranslateTimeAxis();
ta.rta = new RotateTimeAxis();
TranslateTimeAxis tta = ta.trta;
tta.num_keyframe = br.ReadInt32();
tta.tkf = new TranslateKeyFrame[tta.num_keyframe];
for (int j = 0; j < tta.num_keyframe; j++)
{
tta.tkf[j] = new TranslateKeyFrame();
tta.tkf[j].timestamp = br.ReadByte();
tta.tkf[j].translate = new Vector3(br.ReadInt16() / 256f, br.ReadInt16() / 256f, br.ReadInt16() / 256f);
}
RotateTimeAxis rta = ta.rta;
rta.num_keyframe = br.ReadInt32();
rta.rkf = new RotateKeyFrame[rta.num_keyframe];
for (int j = 0; j < rta.num_keyframe; j++)
{
rta.rkf[j] = new RotateKeyFrame();
rta.rkf[j].timestamp = br.ReadByte();
rta.rkf[j].rotate = new Quaternion(br.ReadInt16() / 32768f, br.ReadInt16() / 32768f, br.ReadInt16() / 32768f, br.ReadInt16() / 32768f);
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////
//动画行为定义结构
animations = new Animation[num_animation];
for (int i = 0; i < num_animation; i++)
{
Animation ani = animations[i] = new Animation();
ani.name = ConvertBytesToString(br.ReadBytes(0x3c));
ani.num_related_bone = br.ReadInt32();
ani.bae = new BoneAnimationEntry[ani.num_related_bone];
for (int j = 0; j < ani.num_related_bone; j++)
{
BoneAnimationEntry bae = ani.bae[j] = new BoneAnimationEntry();
bae.bone_id = br.ReadInt32();
bae.transform_time_axis_idx = br.ReadInt32();
bae.tta = timeaxises[bae.transform_time_axis_idx];
}
}
Debug.WriteLine("已读长度: " + fs.Position.ToString());
Debug.WriteLine("文件长度: " + fs.Length.ToString());
}
//GenerateAllBitmaps(); //创建所有位图
}
}
