int XFileLoader::ReadMesh(istream& s)
{
vector<vec3> positions;
vector<vec2> texCoords;
vector<unsigned short> indices;
vector<vec3> normals;
vector<unsigned short> nindices;
XFileToken t = XFileToken::NextToken(s);
if (t.m_type == XFileToken::Identifier)
{
//m_meshes[meshIdx].m_name = t.m_content;
t = XFileToken::NextToken(s);
}
if (t.m_type != XFileToken::LeftBrace)
THROW_EXCEPTION_T("Parsing error", ParsingException);
int nElems;
ReadMember(s, nElems);
positions.resize(nElems);
ReadArray(s, positions.begin(), positions.end());
ReadFaceArray(s, indices);
int materialIdx = -1;
while (true)
{
t = XFileToken::NextToken(s);
if (t.m_type == XFileToken::Identifier)
{
if (t.m_content == "MeshNormals")
ReadMeshNormals(s, normals, nindices);
else if(t.m_content == "MeshMaterialList")
materialIdx = ReadMeshMaterials(s);
else if(t.m_content == "MeshTextureCoords")
ReadTexCoords(s, texCoords);
else
SkipDataObject(s);
}
else if (t.m_type == XFileToken::LeftBrace)
SkipDataReference(s);
else if (t.m_type == XFileToken::RightBrace)
break;
else
THROW_EXCEPTION_T("Parsing error", ParsingException);
}
if (!texCoords.empty() && texCoords.size() != positions.size())
THROW_EXCEPTION_T("Parsing error", ParsingException);
return CreateMesh(positions, texCoords, indices, normals, nindices, materialIdx);
}
void C3DS::ParseChunk(stChunk* Chunk){
while(Chunk->bytesRead < Chunk->length){
stChunk tempChunk = {0, 0, 0};
ReadChunk(&tempChunk);
switch( tempChunk.ID){
// HEADER OUR ENTRY POINT
case EDIT3DS: //0x3D3D
ParseChunk(&tempChunk);
break;
// MATERIALS
case MATERIAL: //0xAFFF
stMaterial newMaterial;
m_pMaterials.push_back(newMaterial);
m_iNumMaterials++;
ParseChunk(&tempChunk);
break;
case MAT_NAME: //0xA000 - sz for hte material name "e.g. default 2"
GetMaterialName(&tempChunk);
break;
case MAT_DIFFUSE: // Diffuse Colour //0xA020
GetDiffuseColour(&tempChunk);
break;
case MAT_TEXMAP: //0xA200 - if there's a texture wrapped to it where here
ParseChunk(&tempChunk);
break;
case MAT_TEXFLNM: // 0xA300 - get filename of the material
GetTexFileName(&tempChunk);
break;
// OBJECT - MESH'S
case NAMED_OBJECT:{
stMesh newMesh;
m_pMeshs.push_back(newMesh);
m_iNumMeshs++;
GetMeshObjectName(&tempChunk);
}
break;
case OBJ_MESH: //0x4100
ParseChunk(&tempChunk);
break;
case MESH_VERTICES: //0x4110
ReadMeshVertices(&tempChunk);
break;
case MESH_FACES: //0x4120
ReadMeshFaces(&tempChunk);
break;
case MESH_TEX_VERT: //0x4140
ReadMeshTexCoords(&tempChunk);
break;
case MESH_MATER: //0x4130
ReadMeshMaterials(&tempChunk);
break;
default:
SkipChunk(&tempChunk);
}
Chunk->bytesRead += tempChunk.length;
}
}
void C3DS::ParseChunk(stChunk* Chunk)
{
while(Chunk->bytesRead < Chunk->length)
{
stChunk tempChunk = {0};
ReadChunk(&tempChunk);
// DEBUG CHUNKS
//char buf[2000];
//sprintf(buf, "Chunk ID: %.4x\t Size: %d\n", tempChunk.ID, tempChunk.length);
//debug_op(buf);
switch( tempChunk.ID)
{
// HEADER OUR ENTRY POINT
case EDIT3DS: //0x3D3D
ParseChunk(&tempChunk);
break;
// MATERIALS
case MATERIAL: //0xAFFF
{
stMaterial newMaterial;
m_pMaterials.push_back(newMaterial);
m_iNumMaterials++;
}
ParseChunk(&tempChunk);
break;
case MAT_NAME: //0xA000 - sz for hte material name "e.g. default 2"
GetMaterialName(&tempChunk);
break;
case MAT_AMBIENT:
GetAmbientColour(&tempChunk);
break;
case MAT_SPECULAR:
GetSpecularColour(&tempChunk);
break;
case MAT_DIFFUSE: // Diffuse Colour //0xA020
GetDiffuseColour(&tempChunk);
break;
case MAT_TEXMAP: //0xA200 - if there's a texture wrapped to it where here
ParseChunk(&tempChunk);
break;
case MAT_TEXFLNM: // 0xA300 - get filename of the material
GetTexFileName(&tempChunk);
break;
// OBJECT - MESH'S
case NAMED_OBJECT: //0x4000
{
stMesh newMesh;
m_pMeshs.push_back(newMesh);
m_iNumMeshs++;
GetMeshObjectName(&tempChunk);
}
break;
case OBJ_MESH: //0x4100
ParseChunk(&tempChunk);
break;
case MESH_VERTICES: //0x4110
ReadMeshVertices(&tempChunk);
break;
case MESH_FACES: //0x4120
ReadMeshFaces(&tempChunk);
break;
case MESH_TEX_VERT: //0x4140
ReadMeshTexCoords(&tempChunk);
break;
case MESH_MATER: //0x4130
ReadMeshMaterials(&tempChunk);
break;
// ANIMATION
case KEYF3DS: //0xB000
ParseChunk(&tempChunk);
break;
case ANIM_S_E_TIME: //0xB008
StartEndFrames(&tempChunk);
break;
case ANIM_OBJ: //0xB002
{
stAnimation newAnimation;
m_pAnimation.push_back(newAnimation);
m_iNumAnimObjects++;
}
ParseChunk(&tempChunk);
break;
case ANIM_NAME:
ReadNameOfObjectToAnimate(&tempChunk);
break;
case ANIM_PIVOT: // 0xB013
ReadPivotPoint(&tempChunk);
break;
case ANIM_POS: // 0xB020
ReadAnimPos(&tempChunk);
break;
case ANIM_ROT: // 0xB021
ReadAnimRot(&tempChunk);
break;
case ANIM_SCALE: // 0xB022
ReadAnimScale(&tempChunk);
break;
default:
SkipChunk(&tempChunk);
}
Chunk->bytesRead += tempChunk.length;
}
}