int EditPatchMod::DoAttach(INode *node, PatchMesh *attPatch, RPatchMesh *rattPatch, bool & canUndo)
{
ModContextList mcList;
INodeTab nodes;
if (!ip)
return 0;
ip->GetModContexts(mcList, nodes);
if (mcList.Count() != 1)
{
nodes.DisposeTemporary();
return 0;
}
EditPatchData *patchData =(EditPatchData*)mcList[0]->localData;
if (!patchData)
{
nodes.DisposeTemporary();
return 0;
}
patchData->BeginEdit(ip->GetTime());
// If the mesh isn't yet cached, this will cause it to get cached.
RPatchMesh *rpatch;
PatchMesh *patch = patchData->TempData(this)->GetPatch(ip->GetTime(), rpatch);
if (!patch)
{
nodes.DisposeTemporary();
return 0;
}
patchData->RecordTopologyTags(patch);
RecordTopologyTags();
// Transform the shape for attachment:
// If reorienting, just translate to align pivots
// Otherwise, transform to match our transform
Matrix3 attMat(1);
if (attachReorient)
{
Matrix3 thisTM = nodes[0]->GetNodeTM(ip->GetTime());
Matrix3 thisOTMBWSM = nodes[0]->GetObjTMBeforeWSM(ip->GetTime());
Matrix3 thisPivTM = thisTM * Inverse(thisOTMBWSM);
Matrix3 otherTM = node->GetNodeTM(ip->GetTime());
Matrix3 otherOTMBWSM = node->GetObjTMBeforeWSM(ip->GetTime());
Matrix3 otherPivTM = otherTM * Inverse(otherOTMBWSM);
Point3 otherObjOffset = node->GetObjOffsetPos();
attMat = Inverse(otherPivTM) * thisPivTM;
}
else
{
attMat = node->GetObjectTM(ip->GetTime()) *
Inverse(nodes[0]->GetObjectTM(ip->GetTime()));
}
// RB 3-17-96 : Check for mirroring
AffineParts parts;
decomp_affine(attMat, &parts);
if (parts.f < 0.0f)
{
int v[8], ct, ct2, j;
Point3 p[9];
for (int i = 0; i < attPatch->numPatches; i++)
{
// Re-order rpatch
if (attPatch->patches[i].type == PATCH_QUAD)
{
UI_PATCH rpatch=rattPatch->getUIPatch (i);
int ctU=rpatch.NbTilesU<<1;
int ctV=rpatch.NbTilesV<<1;
int nU;
for (nU=0; nU<ctU; nU++)
{
for (int nV=0; nV<ctV; nV++)
{
rattPatch->getUIPatch (i).getTileDesc (nU+nV*ctU)=rpatch.getTileDesc (ctU-1-nU+(ctV-1-nV)*ctU);
}
}
for (nU=0; nU<ctU+1; nU++)
{
for (int nV=0; nV<ctV+1; nV++)
{
rattPatch->getUIPatch (i).setColor (nU+nV*(ctU+1), rpatch.getColor (ctU-nU+(ctV-nV)*ctU));
}
}
}
// Re-order vertices
ct = attPatch->patches[i].type == PATCH_QUAD ? 4 : 3;
for (j = 0; j < ct; j++)
{
v[j] = attPatch->patches[i].v[j];
}
for (j = 0; j < ct; j++)
{
attPatch->patches[i].v[j] = v[ct - j - 1];
}
// Re-order vecs
ct = attPatch->patches[i].type == PATCH_QUAD ? 8 : 6;
ct2 = attPatch->patches[i].type == PATCH_QUAD ? 5 : 3;
for (j = 0; j < ct; j++)
{
v[j] = attPatch->patches[i].vec[j];
}
for (j = 0; j < ct; j++, ct2--)
{
if (ct2 < 0)
ct2 = ct - 1;
attPatch->patches[i].vec[j] = v[ct2];
}
// Re-order enteriors
if (attPatch->patches[i].type == PATCH_QUAD)
{
ct = 4;
for (j = 0; j < ct; j++)
{
v[j] = attPatch->patches[i].interior[j];
}
for (j = 0; j < ct; j++)
{
attPatch->patches[i].interior[j] = v[ct - j - 1];
}
}
// Re-order aux
if (attPatch->patches[i].type == PATCH_TRI)
{
ct = 9;
for (j = 0; j < ct; j++)
{
p[j] = attPatch->patches[i].aux[j];
}
for (j = 0; j < ct; j++)
{
attPatch->patches[i].aux[j] = p[ct - j - 1];
}
}
// Re-order TV faces if present
for (int chan = 0; chan < patch->getNumMaps(); ++chan)
{
if (attPatch->tvPatches[chan])
{
ct = 4;
for (j = 0; j < ct; j++)
{
v[j] = attPatch->tvPatches[chan][i].tv[j];
}
for (j = 0; j < ct; j++)
{
attPatch->tvPatches[chan][i].tv[j] = v[ct - j - 1];
}
}
}
}
}
int i;
for (i = 0; i < attPatch->numVerts; ++i)
attPatch->verts[i].p = attPatch->verts[i].p * attMat;
for (i = 0; i < attPatch->numVecs; ++i)
attPatch->vecs[i].p = attPatch->vecs[i].p * attMat;
attPatch->computeInteriors();
theHold.Begin();
// Combine the materials of the two nodes.
int mat2Offset = 0;
Mtl *m1 = nodes[0]->GetMtl();
Mtl *m2 = node->GetMtl();
bool condenseMe = FALSE;
if (m1 && m2 &&(m1 != m2))
{
if (attachMat == ATTACHMAT_IDTOMAT)
{
int ct = 1;
if (m1->IsMultiMtl())
ct = m1->NumSubMtls();
for (int i = 0; i < patch->numPatches; ++i)
{
int mtid = patch->getPatchMtlIndex(i);
if (mtid >= ct)
patch->setPatchMtlIndex(i, mtid % ct);
}
FitPatchIDsToMaterial(*attPatch, m2);
if (condenseMat)
condenseMe = TRUE;
}
// the theHold calls here were a vain attempt to make this all undoable.
// This should be revisited in the future so we don't have to use the SYSSET_CLEAR_UNDO.
theHold.Suspend();
if (attachMat == ATTACHMAT_MATTOID)
{
m1 = FitMaterialToPatchIDs(*patch, m1);
m2 = FitMaterialToPatchIDs(*attPatch, m2);
}
Mtl *multi = CombineMaterials(m1, m2, mat2Offset);
if (attachMat == ATTACHMAT_NEITHER)
mat2Offset = 0;
theHold.Resume();
// We can't be in face subobject mode, else we screw up the materials:
DWORD oldSL = patch->selLevel;
DWORD roldSL = patch->selLevel;
patch->selLevel = PATCH_OBJECT;
rpatch->SetSelLevel (EP_OBJECT);
nodes[0]->SetMtl(multi);
patch->selLevel = oldSL;
rpatch->SetSelLevel (roldSL);
m1 = multi;
canUndo = FALSE; // Absolutely cannot undo material combinations.
}
if (!m1 && m2)
{
// We can't be in face subobject mode, else we screw up the materials:
DWORD oldSL = patch->selLevel;
DWORD roldSL = rpatch->GetSelLevel();
patch->selLevel = PATCH_OBJECT;
rpatch->SetSelLevel (EP_OBJECT);
nodes[0]->SetMtl(m2);
patch->selLevel = oldSL;
rpatch->SetSelLevel (roldSL);
m1 = m2;
}
// Start a restore object...
if (theHold.Holding())
theHold.Put(new PatchRestore(patchData, this, patch, rpatch, "DoAttach"));
// Do the attach
patch->Attach(attPatch, mat2Offset);
rpatch->Attach(rattPatch, *patch);
patchData->UpdateChanges(patch, rpatch);
patchData->TempData(this)->Invalidate(PART_TOPO | PART_GEOM);
// Get rid of the original node
ip->DeleteNode(node);
ResolveTopoChanges();
theHold.Accept(GetString(IDS_TH_ATTACH));
if (m1 && condenseMe)
{
// Following clears undo stack.
patch = patchData->TempData(this)->GetPatch(ip->GetTime(), rpatch);
m1 = CondenseMatAssignments(*patch, m1);
}
nodes.DisposeTemporary();
ClearPatchDataFlag(mcList, EPD_BEENDONE);
NotifyDependents(FOREVER, PART_TOPO | PART_GEOM, REFMSG_CHANGE);
ip->RedrawViews(ip->GetTime(), REDRAW_NORMAL);
return 1;
}
