T3D 1.2 ShapeBase::ChangeMaterial BugFix

DefineEngineMethod( ShapeBase, changeMaterial, void, ( const char* mapTo, Material* oldMat, Material* newMat ),,
   "@brief Change one of the materials on the shape.nn"

   "This method changes materials per mapTo with others. The material that "
   "is being replaced is mapped to unmapped_mat as a part of this transition.n"

   "@note Warning, right now this only sort of works. It doesn't do a live "
   "update like it should.n"

   "@param mapTo the name of the material target to remap (from getTargetName)n"
   "@param oldMat the old Material that was mapped n"
   "@param newMat the new Material to mapnn"

   "@tsexamplen"
   "// remap the first material in the shapen"
   "%mapTo = %obj.getTargetName( 0 );n"
   "%obj.changeMaterial( %mapTo, 0, MyMaterial );n"
   "@endtsexamplen" )
{
   // if no valid new material, theres no reason for doing this
   if( !newMat )
   {
      Con::errorf("ShapeBase::changeMaterial failed: New material does not exist!");
      return;
   }

   // initilize server/client versions
   ShapeBase *serverObj = object;
   ShapeBase *clientObj = dynamic_cast< ShapeBase* > ( object->getClientObject() );

   // Check the mapTo name exists for this shape
   S32 matIndex = serverObj->getShape()->materialList->getMaterialNameList().find_next(String(mapTo));
   if (matIndex < 0)
   {
      Con::errorf("ShapeBase::changeMaterial failed: Invalid mapTo name '%s'", mapTo);
      return;
   }

   // Lets remap the old material off, so as to let room for our current material room to claim its spot
   if( oldMat )
      oldMat->mMapTo = String("unmapped_mat");

   newMat->mMapTo = mapTo;

   // Map the material in the in the matmgr
   MATMGR->mapMaterial( mapTo, newMat->getName() );

   // Replace instances with the new material being traded in. For ShapeBase
   // class we have to update the server/client objects separately so both
   // represent our changes
   delete serverObj->getShape()->materialList->mMatInstList[matIndex];
   serverObj->getShape()->materialList->mMatInstList[matIndex] = newMat->createMatInstance();
   if (clientObj)
   {
      delete clientObj->getShapeInstance()->mMaterialList->mMatInstList[matIndex];
      clientObj->getShapeInstance()->mMaterialList->mMatInstList[matIndex] = newMat->createMatInstance();
   }
   // Finish up preparing the material instances for rendering
   const GFXVertexFormat *flags = getGFXVertexFormat<GFXVertexPNTTB>();
   FeatureSet features = MATMGR->getDefaultFeatures();

   serverObj->getShape()->materialList->getMaterialInst(matIndex)->init( features, flags );
   if (clientObj)
      clientObj->getShapeInstance()->mMaterialList->getMaterialInst(matIndex)->init( features, flags );
}

%player.changeMaterial("TexutreORPartName",0,"NewMaterialName");

function AIPlayer::Wear(%this,%tset)
{
	%this.changeMaterial("base.body",0,"tset_"@%tset@"_body");
	%this.changeMaterial("base.legs",0,"tset_"@%tset@"_legs");
	%this.changeMaterial("base.arms",0,"tset_"@%tset@"_arms");
	%this.changeMaterial("base.hands",0,"tset_"@%tset@"_hands");
	%this.changeMaterial("base.feet",0,"tset_"@%tset@"_feet");
	%this.changeMaterial("base.head",0,"GeorgesHead");
}