bool MA_ParseTransform(idParser& parser) {
maNodeHeader_t header;
maTransform_t* transform;
memset(&header, 0, sizeof(header));
//Allocate room for the transform
transform = (maTransform_t *)Mem_Alloc( sizeof( maTransform_t ) );
memset(transform, 0, sizeof(maTransform_t));
transform->scale.x = transform->scale.y = transform->scale.z = 1;
//Get the header info from the transform
MA_ParseNodeHeader(parser, &header);
//Read the transform attributes
idToken token;
while(parser.ReadToken(&token)) {
if(IsNodeComplete(token)) {
parser.UnreadToken(&token);
break;
}
if(!token.Icmp("setAttr")) {
parser.ReadToken(&token);
if(!token.Icmp(".t")) {
if(!MA_ReadVec3(parser, transform->translate)) {
return false;
}
transform->translate.y *= -1;
} else if (!token.Icmp(".r")) {
if(!MA_ReadVec3(parser, transform->rotate)) {
return false;
}
} else if (!token.Icmp(".s")) {
if(!MA_ReadVec3(parser, transform->scale)) {
return false;
}
} else {
parser.SkipRestOfLine();
}
}
}
if(header.parent[0] != 0) {
//Find the parent
maTransform_t** parent;
maGlobal.model->transforms.Get(header.parent, &parent);
if(parent) {
transform->parent = *parent;
}
}
//Add this transform to the list
maGlobal.model->transforms.Set(header.name, transform);
return true;
}
void MA_ParseFileNode( idParser &parser )
{
//Get the header info from the node
maNodeHeader_t header;
MA_ParseNodeHeader( parser, &header );
//Read the transform attributes
idToken token;
while( parser.ReadToken( &token ) )
{
if( IsNodeComplete( token ) )
{
parser.UnreadToken( &token );
break;
}
if( !token.Icmp( "setAttr" ) )
{
maAttribHeader_t attribHeader;
MA_ParseAttribHeader( parser, &attribHeader );
if( strstr( attribHeader.name, ".ftn" ) )
{
parser.SkipUntilString( "string" );
parser.ReadToken( &token );
if( !token.Icmp( "(" ) )
{
parser.ReadToken( &token );
}
maFileNode_t *fileNode;
fileNode = ( maFileNode_t * ) Mem_Alloc( sizeof( maFileNode_t ) );
strcpy( fileNode->name, header.name );
strcpy( fileNode->path, token.c_str() );
maGlobal.model->fileNodes.Set( fileNode->name, fileNode );
}
else
{
parser.SkipRestOfLine();
}
}
}
}
void MA_ParseMesh(idParser& parser) {
maObject_t *object;
object = (maObject_t *)Mem_Alloc( sizeof( maObject_t ) );
memset( object, 0, sizeof( maObject_t ) );
maGlobal.model->objects.Append( object );
maGlobal.currentObject = object;
object->materialRef = -1;
//Get the header info from the mesh
maNodeHeader_t header;
MA_ParseNodeHeader(parser, &header);
//Find my parent
if(header.parent[0] != 0) {
//Find the parent
maTransform_t** parent;
maGlobal.model->transforms.Get(header.parent, &parent);
if(parent) {
maGlobal.currentObject->mesh.transform = *parent;
}
}
strcpy(object->name, header.name);
//Read the transform attributes
idToken token;
while(parser.ReadToken(&token)) {
if(IsNodeComplete(token)) {
parser.UnreadToken(&token);
break;
}
if(!token.Icmp("setAttr")) {
maAttribHeader_t header;
MA_ParseAttribHeader(parser, &header);
if(strstr(header.name, ".vt")) {
MA_ParseVertex(parser, &header);
} else if (strstr(header.name, ".ed")) {
MA_ParseEdge(parser, &header);
} else if (strstr(header.name, ".pt")) {
MA_ParseVertexTransforms(parser, &header);
} else if (strstr(header.name, ".n")) {
MA_ParseNormal(parser, &header);
} else if (strstr(header.name, ".fc")) {
MA_ParseFace(parser, &header);
} else if (strstr(header.name, ".clr")) {
MA_ParseColor(parser, &header);
} else if (strstr(header.name, ".uvst")) {
MA_ParseTVert(parser, &header);
} else {
parser.SkipRestOfLine();
}
}
}
maMesh_t* pMesh = &maGlobal.currentObject->mesh;
//Get the verts from the edge
for(int i = 0; i < pMesh->numFaces; i++) {
for(int j = 0; j < 3; j++) {
int edge = pMesh->faces[i].edge[j];
if(edge < 0) {
edge = idMath::Fabs(edge)-1;
pMesh->faces[i].vertexNum[j] = pMesh->edges[edge].y;
} else {
pMesh->faces[i].vertexNum[j] = pMesh->edges[edge].x;
}
}
}
//Get the normals
if(pMesh->normalsParsed) {
for(int i = 0; i < pMesh->numFaces; i++) {
for(int j = 0; j < 3; j++) {
//Is this vertex shared
int sharedFace = -1;
int sharedVert = -1;
if(MA_QuickIsVertShared(i, j)) {
MA_GetSharedFace(i, j, sharedFace, sharedVert);
}
if(sharedFace != -1) {
//Get the normal from the share
pMesh->faces[i].vertexNormals[j] = pMesh->faces[sharedFace].vertexNormals[sharedVert];
} else {
//The vertex is not shared so get the next normal
if(pMesh->nextNormal >= pMesh->numNormals) {
//We are using more normals than exist
throw idException(va("Maya Loader '%s': Invalid Normals Index.", parser.GetFileName()));
}
pMesh->faces[i].vertexNormals[j] = pMesh->normals[pMesh->nextNormal];
pMesh->nextNormal++;
}
}
}
}
//Now that the normals are good...lets reorder the verts to make the tris face the right way
for(int i = 0; i < pMesh->numFaces; i++) {
int tmp = pMesh->faces[i].vertexNum[1];
pMesh->faces[i].vertexNum[1] = pMesh->faces[i].vertexNum[2];
pMesh->faces[i].vertexNum[2] = tmp;
idVec3 tmpVec = pMesh->faces[i].vertexNormals[1];
pMesh->faces[i].vertexNormals[1] = pMesh->faces[i].vertexNormals[2];
pMesh->faces[i].vertexNormals[2] = tmpVec;
tmp = pMesh->faces[i].tVertexNum[1];
pMesh->faces[i].tVertexNum[1] = pMesh->faces[i].tVertexNum[2];
pMesh->faces[i].tVertexNum[2] = tmp;
tmp = pMesh->faces[i].vertexColors[1];
pMesh->faces[i].vertexColors[1] = pMesh->faces[i].vertexColors[2];
pMesh->faces[i].vertexColors[2] = tmp;
}
//Now apply the pt transformations
for(int i = 0; i < pMesh->numVertTransforms; i++) {
pMesh->vertexes[(int)pMesh->vertTransforms[i].w] += pMesh->vertTransforms[i].ToVec3();
}
MA_VERBOSE((va("MESH %s - parent %s\n", header.name, header.parent)));
MA_VERBOSE((va("\tverts:%d\n",maGlobal.currentObject->mesh.numVertexes)));
MA_VERBOSE((va("\tfaces:%d\n",maGlobal.currentObject->mesh.numFaces)));
}
bool MA_ParseFace(idParser& parser, maAttribHeader_t* header) {
maMesh_t* pMesh = &maGlobal.currentObject->mesh;
idToken token;
//Allocate enough space for all the verts if this is the first attribute for verticies
if(!pMesh->faces) {
pMesh->numFaces = header->size;
pMesh->faces = (maFace_t *)Mem_Alloc( sizeof( maFace_t ) * pMesh->numFaces );
}
//Get the start and end index for this attribute
int minIndex, maxIndex;
if(!MA_ParseHeaderIndex(header, minIndex, maxIndex, "FaceHeader", NULL)) {
//This was just a header
return true;
}
//Read the face data
int currentFace = minIndex-1;
while(parser.ReadToken(&token)) {
if(IsNodeComplete(token)) {
parser.UnreadToken(&token);
break;
}
if(!token.Icmp("f")) {
int count = parser.ParseInt();
if(count != 3) {
throw idException(va("Maya Loader '%s': Face is not a triangle.", parser.GetFileName()));
}
//Increment the face number because a new face always starts with an "f" token
currentFace++;
//We cannot reorder edges until later because the normal processing
//assumes the edges are in the original order
pMesh->faces[currentFace].edge[0] = parser.ParseInt();
pMesh->faces[currentFace].edge[1] = parser.ParseInt();
pMesh->faces[currentFace].edge[2] = parser.ParseInt();
//Some more init stuff
pMesh->faces[currentFace].vertexColors[0] = pMesh->faces[currentFace].vertexColors[1] = pMesh->faces[currentFace].vertexColors[2] = -1;
} else if(!token.Icmp("mu")) {
/* int uvstIndex = */ parser.ParseInt();
int count = parser.ParseInt();
if(count != 3) {
throw idException(va("Maya Loader '%s': Invalid texture coordinates.", parser.GetFileName()));
}
pMesh->faces[currentFace].tVertexNum[0] = parser.ParseInt();
pMesh->faces[currentFace].tVertexNum[1] = parser.ParseInt();
pMesh->faces[currentFace].tVertexNum[2] = parser.ParseInt();
} else if(!token.Icmp("mf")) {
int count = parser.ParseInt();
if(count != 3) {
throw idException(va("Maya Loader '%s': Invalid texture coordinates.", parser.GetFileName()));
}
pMesh->faces[currentFace].tVertexNum[0] = parser.ParseInt();
pMesh->faces[currentFace].tVertexNum[1] = parser.ParseInt();
pMesh->faces[currentFace].tVertexNum[2] = parser.ParseInt();
} else if(!token.Icmp("fc")) {
int count = parser.ParseInt();
if(count != 3) {
throw idException(va("Maya Loader '%s': Invalid vertex color.", parser.GetFileName()));
}
pMesh->faces[currentFace].vertexColors[0] = parser.ParseInt();
pMesh->faces[currentFace].vertexColors[1] = parser.ParseInt();
pMesh->faces[currentFace].vertexColors[2] = parser.ParseInt();
}
}
return true;
}
