mod decode;
mod encode;

/// Mesh format.
///
/// ## Format Description
///
/// A placeholder description from <http://fabletlcmod.com>:
///
/// ```txt
///  Tagged Model Format
///
///  3DMF: 3D Mesh File
///      3DRT: (File Size of all Chunks)
///      MTLS: Material List (File Size of All MTRL Chunks)
///          MTRL: Material Description
///          MTLE: Extended Material Properties
///          MMAP: Mapping Info
///      SUBM: Sub-Mesh
///          TRFM: Transformation Matrix
///          PRIM: Primitive
///              TRIS: Triangle List
///              SMTH: Smoothing Groups
///              VERT: Vertex List
///              UNIV: Unique Vertex Information
///              VGRP: Vertex Group
///          BONE: Bone
///          CLTH: Cloth
///      HLPR: Helpers
///          HDMY: Dummy Object
///          HPNT: Helper Point
///          HCVL: Convex Volume
///
///  Compiled Model Format
///
/// char         NullTerminatedString[x];
/// byte         SkeletonPresent;
/// float        floats[10]; //Model Origin?? Listed in .big Sub-header...
/// word         HPNT_Count;
/// word         HDMY_Count;
/// dword        HLPR_Index_Uncompressed;
/// word			padding;
/// word			HPNT_Compressed;
/// Helper Points[HPNT_Count];
///   float         Matrix[4]; //No Rotation
///   long          hierarchy;
/// word			HDMY_Compressed;
/// Helper Dummies[HDMY_Count];
///   float        Matrix[13];
///   long         hierarchy;
/// word			HLPR_Index_Compressed;
/// word			HPNT_IndexSize;
/// char			HPNT_Index[HPNT_IndexSize-2]; //Subtract the size
/// char		    HDMY_Index[HLPR_Index_Uncompressed-HPNT_IndexSize]; //Rest of helper index deduced
/// dword        NumberMaterials;
/// dword        NumberSurfaces;
/// dword        NumberBones;
/// dword        SizeOfBoneIndex;
/// byte         Unknown;
/// word         Unknown;
/// word         Unknown;
/// word         Compressed;
/// word         Bone_Index_Reference[NumberBones-1];
/// word         BoneIndexCompressed;
/// char         BoneIndex[SizeOfBoneIndex];
/// word         CompressedSize;
/// Bones SUB CHUNK 1[NumberBones];
/// word					CompressedSize;
/// Bones SUB CHUNK 2[NumberBones];
/// word					CompressedSize;
/// Bones SUB CHUNK 3[NumberBones];
/// float					Matrix[12]; //Transform Matrix
///
///  Bones
///      SUB CHUNK 1
///          long					Index;
///          long					Parent;
///          long					nChild;
///          float					Matrix[12];
///      SUB CHUNK 2
///          float					Matrix[12];
///      SUB CHUNK 3
///          float					Matrix[16];
///
///  Material List
///      dword					Material_Index;
///      char					NullTerminatedString[x];
///      dword					Padding;
///      dword					BASE_Texture_ID; //From Texture.big
///      dword					BUMPMAP_Texture_ID; //From Texture.big
///      dword					REFLECT_Texture_ID; //From Texture.big
///      dword					Unknown;
///      dword					Max_Texture_Layers;
///      dword					Glow_Strength;
///      byte					Unknown;
///      byte					Alpha_Enabled;
///      byte					Unknown;
///      word					Ignored; //For degenerate Tri's
///
///  Sub-Mesh
///  dword							Hierarchy;
///  dword							DestroyableMeshLevels;
///  float							floats[5];
///  dword							nFaceVertexIndices;
///  dword							nFaceVertexIndices_BoneIndice;
///  dword							nVerts;
///  dword							nFaces;
///  dword							nSourceVerts;
///  dword							Unknown;
///  dword							Unknown;
///  dword							Unknown;
///  struct structMTRLnFaceVertexIndices			FaceIndices[nFaceVertexIndices];
///  struct structMTRLnFaceVertexIndicesBoneIndice		Face_BoneIndices[nFaceVertexIndices_BoneIndice];
///  float							floats[8];
///  dword							sVert;
///  dword							padding;
///  //Start of Mesh
///
///  Quick notes on sVert “Size Vertice Blocks”….
///
///  20 - 28byte float coords, bones, packed normals, s11e4 tu tv
///  6 - 28byte packed coords, bones, packed normals, s11e4 tu, tv, dword[2]
///  4 - 36byte float coords, float normals, float tu tv, dword meshlevel
///  22 - 36byte float coords, bones, packed normals, s11e4 tu,tv, dword[2]
///  4 - 12byte packed coords, packed normals, s11e4 tu tv
///  4 - 20byte packed coords, bones, packed normals, s11e4 tu tv
///  20 - 20byte float coords, packed normals, s11e4 tu tv
///  Dynamic Clothing
///
///   struct CLTH
///  {
///  	//DWORD				SubMesh_ClothCount;
///  	DWORD				Cloth_ID;
///  	DWORD				??_ID; //possibly material ID
///  	DWORD				sChunk; //Size of full clothing data
///  	DWORD				Unknown5;
///  	DWORD				sDistanceIndice;
///  	CLTH_Distance*			DistanceIndice;//[sDistanceIndice/28]; //Distance between two particles
///  	float				Unknown8;
///  	float				Unknown9;
///  	float				Unknown10;
///  	DWORD				sParticleIndice;
///  	CLTH_Particle*			ParticleIndice;//[sParticleIndice];
///  	float*				ParticleAlphaIndice;//[sParticleIndice]; //How "free" they are. 0.0 = Static and gets a duped //  entry in verts
///  	DWORD				Unknown11;
///  	float				WindStrength; //strength
///  	char				EnableDragging; //enable
///  	char				RotationalDragging; //rotational
///  	float				StrengthDragging; //strength
///  	char				EnableAcceleration; //enable
///  	float				AccelerationDampening; //damping
///  	DWORD				nTriIndice;
///  	CLTH_Tri*			TriIndice;//[nTriIndice] Particles+"Unique" Verts
///  	DWORD				Unknown12; // looks like padding it
///  	DWORD				sTexIndice;
///  	CLTH_Tex*			TexIndice;//[sTexIndice]; //v1 = Particle/"unique" Vert, v2 = TexIndice
///  	DWORD				sVertexIndice;
///  	CLTH_Vertex*			VertexIndice;//[sVertexIndice];
///  	DWORD				sTexCoordIndice;
///  	CLTH_TexCoord*			TexCoordIndice;//[sTexCoordIndice];
///  	DWORD				sParticleMask;
///  	CLTH_PartMask*			ParticleMask;//[sParticleMask]; //Unique Particles in TriIndice
///  	DWORD				sVertMask;
///  	CLTH_VertMask*			Vertmask;//[sVertMask]; //Unique Verts in TriIndice
///  	//9 bytes of padding
///  	// 1 group for particles, 1 for verts
///  	DWORD				VGRPCount; // = Number of Bones
///  	VGRP**				VGRPs;
///  };
/// ```
///
pub struct Bbm {
    pub header: BbmHeader,
}

pub struct BbmHeader {
    pub unknown1: String,
    pub selection_present: u8,
    pub unknown2: Vec<f32>,
    pub hpnt_count: u16,
    pub hdmy_count: u16,
    pub hlpr_index_uncompressed: u32,
    pub padding: u16,
    pub hpnt_compressed: u16,
    pub helper_points: Vec<BbmHelperPoint>,
    pub hdmy_compressed: u16,
    pub helper_dummies: Vec<BbmHelperDummy>,
    pub hlpr_index_compressed: u16,
    pub hpnt_index_size: u16,
    pub hpnt_index: Vec<u8>,
    pub hdmy_index: Vec<u8>,
    pub material_count: u32,
    pub surface_count: u32,
    pub bone_count: u32,
    pub bone_index_size: u32,
    pub unknown3: u16,
    pub unknown4: u16,
    pub unknown5: u16,
    pub compressed: u16,
    pub bone_index_reference: Vec<u16>,
    pub bone_index_compressed: u16,
    pub bone_index: Vec<u8>,
    pub compressed_size: u16,

}

pub struct BbmHelperPoint {
    pub matrix: Vec<f32>, // 4x4 matrix
    pub hierarchy: i32,
}

pub struct BbmHelperDummy {
    pub matrix: Vec<f32>, // 13x13 matrix
    pub hierarchy: i32,
}