Replaced train track gizmo with a popup list.

common/lc_library.cpp

@@ -12,6 +12,7 @@
 #include "lc_glextensions.h"
 #include "lc_synth.h"
 #include "lc_traintrack.h"
+#include "lc_traintrack.h"
 #include "project.h"
 #include "lc_profile.h"
 #include "lc_meshloader.h"
@@ -1807,6 +1808,17 @@ void lcPiecesLibrary::GetParts(std::vector<PieceInfo*>& Parts) const
 		Parts.emplace_back(PartIt.second);
 }
 
+std::vector<PieceInfo*> lcPiecesLibrary::GetTrainTrackParts(const lcTrainTrackInfo* TrainTrackInfo) const
+{
+	std::vector<PieceInfo*> Parts;
+
+	for (const auto& [Name, Info] : mPieces)
+		if (Info->GetTrainTrackInfo())
+			Parts.emplace_back(Info);
+
+	return Parts;
+}
+
 std::vector<PieceInfo*> lcPiecesLibrary::GetPartsFromSet(const std::vector<std::string>& PartIds) const
 {
 	std::vector<PieceInfo*> Parts;

common/lc_library.h

@@ -5,6 +5,7 @@
 #include "lc_meshloader.h"
 
 class PieceInfo;
+class lcTrainTrackInfo;
 class lcZipFile;
 class lcLibraryMeshData;
 class lcThumbnailManager;
@@ -155,6 +156,7 @@ public:
 	void GetCategoryEntries(int CategoryIndex, bool GroupPieces, std::vector<PieceInfo*>& SinglePieces, std::vector<PieceInfo*>& GroupedPieces);
 	void GetCategoryEntries(const char* CategoryKeywords, bool GroupPieces, std::vector<PieceInfo*>& SinglePieces, std::vector<PieceInfo*>& GroupedPieces);
 	void GetParts(std::vector<PieceInfo*>& Parts) const;
+	std::vector<PieceInfo*> GetTrainTrackParts(const lcTrainTrackInfo* TrainTrackInfo) const;
 
 	std::vector<PieceInfo*> GetPartsFromSet(const std::vector<std::string>& PartIds) const;
 	std::string GetPartId(const PieceInfo* Info) const;

common/lc_mainwindow.cpp

@@ -2891,7 +2891,7 @@ void lcMainWindow::HandleCommand(lcCommandId CommandId)
 
 	case LC_PIECE_INSERT:
 		if (ActiveModel)
-			ActiveModel->AddPiece();
+			ActiveModel->AddPiece(static_cast<PieceInfo*>(nullptr));
 		break;
 
 	case LC_PIECE_DELETE:

common/lc_model.cpp

@@ -2281,9 +2281,10 @@ lcMatrix33 lcModel::GetRelativeRotation() const
 	return lcMatrix33Identity();
 }
 
-void lcModel::AddPiece()
+void lcModel::AddPiece(PieceInfo* PieceInfo)
 {
-	PieceInfo* PieceInfo = gMainWindow->GetCurrentPieceInfo();
+	if (!PieceInfo)
+		PieceInfo = gMainWindow->GetCurrentPieceInfo();
 
 	if (!PieceInfo)
 		return;

common/lc_model.h

@@ -209,7 +209,7 @@ public:
 	void InsertStep(lcStep Step);
 	void RemoveStep(lcStep Step);
 
-	void AddPiece();
+	void AddPiece(PieceInfo* Info);
 	void DeleteAllCameras();
 	void DeleteSelectedObjects();
 	void ResetSelectedPiecesPivotPoint();

common/lc_partselectionwidget.cpp

@@ -233,6 +233,28 @@ void lcPartSelectionListModel::SetCurrentModelCategory()
 	SetFilter(mFilter);
 }
 
+void lcPartSelectionListModel::SetCustomParts(const std::vector<PieceInfo*>& Parts)
+{
+	beginResetModel();
+
+	ReleaseThumbnails();
+	mParts.clear();
+
+	for (PieceInfo* Part : Parts)
+		mParts.emplace_back().Info = Part;
+
+	auto lcPartSortFunc = [](const lcPartSelectionListModelEntry& a, const lcPartSelectionListModelEntry& b)
+	{
+		return strcmp(a.Info->m_strDescription, b.Info->m_strDescription) < 0;
+	};
+
+	std::sort(mParts.begin(), mParts.end(), lcPartSortFunc);
+
+	endResetModel();
+
+	SetFilter(mFilter);
+}
+
 void lcPartSelectionListModel::SetFilter(const QString& Filter)
 {
 	mFilter = Filter.toLatin1();
@@ -511,12 +533,8 @@ void lcPartSelectionListModel::SetShowPartNames(bool Show)
 }
 
 lcPartSelectionListView::lcPartSelectionListView(QWidget* Parent, lcPartSelectionWidget* PartSelectionWidget)
-	: QListView(Parent)
+	: QListView(Parent), mPartSelectionWidget(PartSelectionWidget)
 {
-	mPartSelectionWidget = PartSelectionWidget;
-	mCategoryType = lcPartCategoryType::AllParts;
-	mCategoryIndex = 0;
-
 	setUniformItemSizes(true);
 	setResizeMode(QListView::Adjust);
 	setWordWrap(false);
@@ -535,6 +553,9 @@ lcPartSelectionListView::lcPartSelectionListView(QWidget* Parent, lcPartSelectio
 
 void lcPartSelectionListView::CustomContextMenuRequested(QPoint Pos)
 {
+	if (!mPartSelectionWidget)
+		return;
+
 	QMenu* Menu = new QMenu(this);
 
 	QModelIndex Index = indexAt(Pos);
@@ -584,6 +605,7 @@ void lcPartSelectionListView::SetCategory(lcPartCategoryType Type, int Index)
 	case lcPartCategoryType::Category:
 		mListModel->SetCategory(Index);
 		break;
+	case lcPartCategoryType::Custom:
 	case lcPartCategoryType::Count:
 		break;
 	}
@@ -591,6 +613,15 @@ void lcPartSelectionListView::SetCategory(lcPartCategoryType Type, int Index)
 	setCurrentIndex(mListModel->index(0, 0));
 }
 
+void lcPartSelectionListView::SetCustomParts(const std::vector<PieceInfo*>& Parts)
+{
+	mCategoryType = lcPartCategoryType::Custom;
+
+	mListModel->SetCustomParts(Parts);
+
+	setCurrentIndex(mListModel->index(0, 0));
+}
+
 void lcPartSelectionListView::SetCurrentPart(PieceInfo* Info)
 {
 	QModelIndex Index = mListModel->GetPieceInfoIndex(Info);

common/lc_partselectionwidget.h

@@ -13,6 +13,7 @@ enum class lcPartCategoryType
 	Submodels,
 	Palette,
 	Category,
+	Custom,
 	Count
 };
 
@@ -148,6 +149,7 @@ public:
 	void SetModelsCategory();
 	void SetPaletteCategory(int SetIndex);
 	void SetCurrentModelCategory();
+	void SetCustomParts(const std::vector<PieceInfo*>& Parts);
 	void SetFilter(const QString& Filter);
 	void RequestThumbnail(int PartIndex);
 	void SetShowDecoratedParts(bool Show);
@@ -191,6 +193,7 @@ public:
 	void startDrag(Qt::DropActions SupportedActions) override;
 
 	void SetCategory(lcPartCategoryType Type, int Index);
+	void SetCustomParts(const std::vector<PieceInfo*>& Parts);
 	void SetCurrentPart(PieceInfo* Info);
 
 	PieceInfo* GetCurrentPart() const
@@ -239,11 +242,11 @@ protected:
 	void SetIconSize(int Size);
 	void SetPartFilterType(lcPartFilterType Option);
 
-	lcPartSelectionListModel* mListModel;
+	lcPartSelectionListModel* mListModel = nullptr;
-	lcPartSelectionWidget* mPartSelectionWidget;
+	lcPartSelectionWidget* mPartSelectionWidget = nullptr;
-	PieceInfo* mContextInfo;
+	PieceInfo* mContextInfo = nullptr;
-	lcPartCategoryType mCategoryType;
+	lcPartCategoryType mCategoryType = lcPartCategoryType::AllParts;
-	int mCategoryIndex;
+	int mCategoryIndex = 0;
 };
 
 class lcPartSelectionWidget : public QWidget

common/lc_traintrack.cpp

@@ -86,46 +86,6 @@ void lcTrainTrackInit(lcPiecesLibrary* Library)
 	}
 }
 
-std::pair<PieceInfo*, lcMatrix44> lcTrainTrackInfo::GetPieceInsertTransform(lcPiece* Piece, quint32 ConnectionIndex, lcTrainTrackType TrainTrackType) const
-{
-	if (ConnectionIndex >= mConnections.size())
-		return { nullptr, lcMatrix44Identity() };
-
-	const char* PieceNames[] =
-	{
-		"74746.dat",
-		"74747.dat",
-		"74747.dat",
-		"2861c04.dat",
-		"2859c04.dat"
-	};
-
-	PieceInfo* Info = lcGetPiecesLibrary()->FindPiece(PieceNames[static_cast<int>(TrainTrackType)], nullptr, false, false);
-
-	if (!Info)
-		return { nullptr, lcMatrix44Identity() };
-
-	lcTrainTrackInfo* TrainTrackInfo = Info->GetTrainTrackInfo();
-
-	if (!TrainTrackInfo || TrainTrackInfo->mConnections.empty())
-		return { nullptr, lcMatrix44Identity() };
-
-	lcMatrix44 Transform;
-
-	if (TrainTrackType != lcTrainTrackType::Left)
-		Transform = TrainTrackInfo->mConnections[0].Transform;
-	else
-	{
-		Transform = lcMatrix44AffineInverse(TrainTrackInfo->mConnections[0].Transform);
-		Transform = lcMul(Transform, lcMatrix44RotationZ(LC_PI));
-	}
-
-	Transform = lcMul(Transform, mConnections[ConnectionIndex].Transform);
-	Transform = lcMul(Transform, Piece->mModelWorld);
-
-	return { Info, Transform };
-}
-
 int lcTrainTrackInfo::GetPieceConnectionIndex(const lcPiece* Piece1, int ConnectionIndex1, const lcPiece* Piece2)
 {
 	const lcTrainTrackInfo* TrainTrackInfo1 = Piece1->mPieceInfo->GetTrainTrackInfo();

common/lc_traintrack.h

@@ -25,25 +25,11 @@ class lcTrainTrackInfo
 public:
 	lcTrainTrackInfo() = default;
 
-	std::pair<PieceInfo*, lcMatrix44> GetPieceInsertTransform(lcPiece* Piece, quint32 ConnectionIndex, lcTrainTrackType TrainTrackType) const;
 	static std::optional<lcMatrix44> GetPieceInsertTransform(lcPiece* CurrentPiece, PieceInfo* Info);
 	static std::optional<lcMatrix44> GetConnectionTransform(lcPiece* CurrentPiece, quint32 CurrentConnectionIndex, PieceInfo* Info, quint32 NewConnectionIndex);
 	static std::optional<lcMatrix44> CalculateTransformToConnection(const lcMatrix44& ConnectionTransform, PieceInfo* Info, quint32 ConnectionIndex);
 	static int GetPieceConnectionIndex(const lcPiece* Piece1, int ConnectionIndex1, const lcPiece* Piece2);
 
-	static quint32 EncodeTrackToolSection(quint32 ConnectionIndex, lcTrainTrackType TrainTrackType)
-	{
-		return ConnectionIndex | (static_cast<quint32>(TrainTrackType) << 8);
-	}
-
-	static std::pair<quint32, lcTrainTrackType> DecodeTrackToolSection(quint32 TrackToolSection)
-	{
-		quint32 ConnectionIndex = TrackToolSection & 0xff;
-		lcTrainTrackType TrainTrackType = static_cast<lcTrainTrackType>((TrackToolSection >> 8) & 0xff);
-
-		return { ConnectionIndex, TrainTrackType };
-	}
-
 	void AddConnection(const lcTrainTrackConnection& TrainTrackConnection)
 	{
 		mConnections.emplace_back(TrainTrackConnection);

common/lc_view.cpp

@@ -17,6 +17,7 @@
 #include "lc_viewsphere.h"
 #include "lc_findreplacewidget.h"
 #include "lc_library.h"
+#include "lc_partselectionwidget.h"
 
 lcFindReplaceParams lcView::mFindReplaceParams;
 QPointer<lcFindReplaceWidget> lcView::mFindWidget;
@@ -304,6 +305,45 @@ lcMatrix44 lcView::GetTileProjectionMatrix(int CurrentRow, int CurrentColumn, in
 		return lcMatrix44Frustum(Left, Right, Bottom, Top, Near, Far);
 }
 
+void lcView::ShowTrainTrackPopup()
+{
+	if (mViewType != lcViewType::View)
+		return;
+
+	lcModel* ActiveModel = GetActiveModel();
+	lcObject* Focus = ActiveModel->GetFocusObject();
+
+	if (!Focus || !Focus->IsPiece())
+		return;
+
+	lcPiece* Piece = (lcPiece*)Focus;
+	const lcTrainTrackInfo* TrainTrackInfo = Piece->mPieceInfo->GetTrainTrackInfo();
+
+	if (!TrainTrackInfo)
+		return;
+
+	QMenu* Menu = new QMenu(mWidget);
+
+	QWidgetAction* Action = new QWidgetAction(Menu);
+	lcPartSelectionListView* ListView = new lcPartSelectionListView(mWidget, nullptr);
+	Action->setDefaultWidget(ListView);
+	Menu->addAction(Action);
+
+	std::vector<PieceInfo*> Parts = lcGetPiecesLibrary()->GetTrainTrackParts(TrainTrackInfo);
+
+	ListView->SetCustomParts(Parts);
+
+	connect(ListView, &QListView::doubleClicked, [Menu, ListView, ActiveModel]()
+		{
+			ActiveModel->AddPiece(ListView->GetCurrentPart());
+			Menu->close();
+		});
+
+	Menu->exec(QCursor::pos());
+
+	delete Menu;
+}
+
 void lcView::ShowContextMenu() const
 {
 	if (mViewType != lcViewType::View)
@@ -421,31 +461,7 @@ lcVector3 lcView::GetMoveDirection(const lcVector3& Direction) const
 
 void lcView::UpdatePiecePreview()
 {
-	lcModel* ActiveModel = GetActiveModel();
+	PieceInfo* PreviewInfo = gMainWindow->GetCurrentPieceInfo();
-	lcObject* Focus = ActiveModel->GetFocusObject();
-	PieceInfo* PreviewInfo = nullptr;
-	lcMatrix44 PreviewTransform;
-
-	if (Focus && Focus->IsPiece())
-	{
-		lcPiece* Piece = (lcPiece*)Focus;
-
-		const lcTrainTrackInfo* TrainTrackInfo = Piece->mPieceInfo->GetTrainTrackInfo();
-
-		if (TrainTrackInfo)
-		{
-			auto [ConnectionIndex, TrainTrackType] = lcTrainTrackInfo::DecodeTrackToolSection(mTrackToolSection);
-
-			std::tie(PreviewInfo, mPiecePreviewTransform) = TrainTrackInfo->GetPieceInsertTransform(Piece, ConnectionIndex, TrainTrackType);
-
-			if (GetActiveModel() != mModel)
-				mPiecePreviewTransform = lcMul(mPiecePreviewTransform, mActiveSubmodelTransform);
-		}
-	}
-
-	if (!PreviewInfo)
-	{
-		PreviewInfo = gMainWindow->GetCurrentPieceInfo();
 
 	if (PreviewInfo)
 	{
@@ -454,7 +470,6 @@ void lcView::UpdatePiecePreview()
 		if (GetActiveModel() != mModel)
 			mPiecePreviewTransform = lcMul(mPiecePreviewTransform, mActiveSubmodelTransform);
 	}
-	}
 
 	if (PreviewInfo != mPiecePreviewInfo)
 	{
@@ -1927,8 +1942,9 @@ lcCursor lcView::GetCursor() const
 		lcCursor::Rotate,           // lcTrackTool::RotateZ
 		lcCursor::Rotate,           // lcTrackTool::RotateXY
 		lcCursor::Rotate,           // lcTrackTool::RotateXYZ
-		lcCursor::Rotate,           // lcTrackTool::RotateTrainTrackRight
+		lcCursor::Select,           // lcTrackTool::RotateTrainTrackRight
-		lcCursor::Rotate,           // lcTrackTool::RotateTrainTrackLeft
+		lcCursor::Select,           // lcTrackTool::RotateTrainTrackLeft
+		lcCursor::Select,           // lcTrackTool::InsertTrainTrack
 		lcCursor::Move,             // lcTrackTool::ScalePlus
 		lcCursor::Move,             // lcTrackTool::ScaleMinus
 		lcCursor::Delete,           // lcTrackTool::Eraser
@@ -2040,6 +2056,7 @@ lcTool lcView::GetCurrentTool() const
 		lcTool::Rotate,           // lcTrackTool::RotateXYZ
 		lcTool::Rotate,           // lcTrackTool::RotateTrainTrackRight
 		lcTool::Rotate,           // lcTrackTool::RotateTrainTrackLeft
+		lcTool::Insert,           // lcTrackTool::InsertTrainTrack
 		lcTool::Move,             // lcTrackTool::ScalePlus
 		lcTool::Move,             // lcTrackTool::ScaleMinus
 		lcTool::Eraser,           // lcTrackTool::Eraser
@@ -2579,6 +2596,15 @@ void lcView::OnButtonDown(lcTrackButton TrackButton)
 		}
 		break;
 
+	case lcTrackTool::InsertTrainTrack:
+		{
+			ShowTrainTrackPopup();
+
+			mToolClicked = true;
+			UpdateTrackTool();
+		}
+		break;
+
 	case lcTrackTool::ScalePlus:
 	case lcTrackTool::ScaleMinus:
 		if (ActiveModel->AnyPiecesSelected())
@@ -3024,6 +3050,7 @@ void lcView::OnMouseMove()
 
 	case lcTrackTool::RotateTrainTrackRight:
 	case lcTrackTool::RotateTrainTrackLeft:
+	case lcTrackTool::InsertTrainTrack:
 	case lcTrackTool::Eraser:
 	case lcTrackTool::Paint:
 	case lcTrackTool::ColorPicker:

common/lc_view.h

@@ -72,6 +72,7 @@ enum class lcTrackTool
 	RotateXYZ,
 	RotateTrainTrackRight,
 	RotateTrainTrackLeft,
+	InsertTrainTrack,
 	ScalePlus,
 	ScaleMinus,
 	Eraser,
@@ -310,6 +311,8 @@ protected:
 	void StartPan(int x, int y);
 	void UpdatePan(int x, int y);
 
+	void ShowTrainTrackPopup();
+
 	lcViewWidget* mWidget = nullptr;
 	int mWidth = 1;
 	int mHeight = 1;

common/lc_viewmanipulator.cpp

@@ -21,7 +21,7 @@ lcViewManipulator::lcViewManipulator(lcView* View)
 
 void lcViewManipulator::CreateResources(lcContext* Context)
 {
-	float Verts[(51 + 138 + 10 + 74) * 3];
+	float Verts[(51 + 138 + 10 + 74 + 28) * 3];
 	float* CurVert = Verts;
 
 	const float OverlayMovePlaneSize = 0.5f;
@@ -146,6 +146,7 @@ void lcViewManipulator::CreateResources(lcContext* Context)
 	const float OverlayTrainTrackEnd = 0.5f;
 	const float OverlayTrainTrackCenter = 0.2f;
 	const float OverlayTrainTrackDistance = 0.5f;
+	const float OverlayTrainTrackInsert = 0.3f;
 
 	// Train Track Rotate Right
 	*CurVert++ = OverlayTrainTrackStart; *CurVert++ = OverlayTrainTrackEnd + OverlayTrainTrackDistance - OverlayArrowCapRadius; *CurVert++ = 0.0f;
@@ -194,7 +195,38 @@ void lcViewManipulator::CreateResources(lcContext* Context)
 		*CurVert = *(CurVert - 111); CurVert++;
 	}
 
-	const GLushort Indices[108 + 360 + 12 + 192] =
+	// Train Track Insert
+	for (int EdgeIndex = 0; EdgeIndex < 7; EdgeIndex++)
+	{
+		const float Radius = OverlayArrowBodyRadius;
+		float x = cosf(LC_2PI * EdgeIndex / 6);
+		float y = sinf(LC_2PI * EdgeIndex / 6);
+
+		*CurVert++ = x * Radius + OverlayTrainTrackEnd - OverlayArrowBodyRadius;
+		*CurVert++ = OverlayTrainTrackInsert;
+		*CurVert++ = y * Radius;
+
+		*CurVert++ = x * Radius + OverlayTrainTrackEnd - OverlayArrowBodyRadius;
+		*CurVert++ = -OverlayTrainTrackInsert;
+		*CurVert++ = y * Radius;
+	}
+
+	for (int EdgeIndex = 0; EdgeIndex < 7; EdgeIndex++)
+	{
+		const float Radius = OverlayArrowBodyRadius;
+		float x = cosf(LC_2PI * EdgeIndex / 6);
+		float y = sinf(LC_2PI * EdgeIndex / 6);
+
+		*CurVert++ = OverlayTrainTrackInsert + OverlayTrainTrackEnd - OverlayArrowBodyRadius;
+		*CurVert++ = x * Radius;
+		*CurVert++ = y * Radius;
+
+		*CurVert++ = -OverlayTrainTrackInsert + OverlayTrainTrackEnd - OverlayArrowBodyRadius;
+		*CurVert++ = x * Radius;
+		*CurVert++ = y * Radius;
+	}
+
+	const GLushort Indices[108 + 360 + 12 + 192 + 72] =
 	{
 		// Move X
 		0, 1, 2, 0, 2, 3, 0, 3, 4, 0, 4, 5, 0, 5, 6, 0, 6, 7, 0, 7, 8, 0, 8, 1,
@@ -229,7 +261,10 @@ void lcViewManipulator::CreateResources(lcContext* Context)
 		// Train Track Rotate Left
 		236, 237, 238, 236, 238, 239, 236, 239, 240, 236, 240, 241, 236, 241, 242, 236, 242, 243, 236, 243, 244, 236, 244, 237,
 		245, 246, 247, 247, 248, 246, 247, 248, 249, 249, 250, 248, 249, 250, 251, 251, 252, 250, 251, 252, 253, 253, 254, 252, 253, 254, 255, 255, 256, 254, 255, 256, 257, 257, 258, 256,
-		259, 260, 261, 261, 262, 260, 261, 262, 263, 263, 264, 262, 263, 264, 265, 265, 266, 264, 265, 266, 267, 267, 268, 266, 267, 268, 269, 269, 270, 268, 269, 270, 271, 271, 272, 270
+		259, 260, 261, 261, 262, 260, 261, 262, 263, 263, 264, 262, 263, 264, 265, 265, 266, 264, 265, 266, 267, 267, 268, 266, 267, 268, 269, 269, 270, 268, 269, 270, 271, 271, 272, 270,
+		// Train Track Insert
+		273, 274, 275, 275, 276, 274, 275, 276, 277, 277, 278, 276, 277, 278, 279, 279, 280, 278, 279, 280, 281, 281, 282, 280, 281, 282, 283, 283, 284, 282, 283, 284, 285, 285, 286, 284,
+		287, 288, 289, 289, 290, 288, 289, 290, 291, 291, 292, 290, 291, 292, 293, 293, 294, 292, 293, 294, 295, 295, 296, 294, 295, 296, 297, 297, 298, 296, 297, 298, 299, 299, 300, 298
 	};
 
 	mRotateMoveVertexBuffer = Context->CreateVertexBuffer(sizeof(Verts), Verts);
@@ -432,18 +467,15 @@ void lcViewManipulator::DrawSelectMove(lcTrackButton TrackButton, lcTrackTool Tr
 		}
 		else if (Piece->mPieceInfo->GetTrainTrackInfo())
 		{
-			DrawTrainTrack(Piece, Context, OverlayScale, TrackTool);
+			DrawTrainTrack(Piece, Context, TrackTool);
 		}
 	}
 
 	Context->EnableDepthTest(true);
 }
 
-void lcViewManipulator::DrawTrainTrack(lcPiece* Piece, lcContext* Context, float OverlayScale, lcTrackTool TrackTool)
+void lcViewManipulator::DrawTrainTrack(lcPiece* Piece, lcContext* Context, lcTrackTool TrackTool)
 {
-	const lcTrainTrackInfo* TrainTrackInfo = Piece->mPieceInfo->GetTrainTrackInfo();
-	const std::vector<lcTrainTrackConnection>& Connections = TrainTrackInfo->GetConnections();
-
 	if (Piece->GetFocusSection() >= LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST)
 	{
 		const lcPreferences& Preferences = lcGetPreferences();
@@ -454,6 +486,7 @@ void lcViewManipulator::DrawTrainTrack(lcPiece* Piece, lcContext* Context, float
 		if (TrackTool == lcTrackTool::RotateTrainTrackRight)
 		{
 			Context->DrawIndexedPrimitives(GL_TRIANGLES, 96, GL_UNSIGNED_SHORT, (108 + 360 + 12 + 96) * 2);
+			Context->DrawIndexedPrimitives(GL_TRIANGLES, 72, GL_UNSIGNED_SHORT, (108 + 360 + 12 + 192) * 2);
 
 			Context->SetColor(0.8f, 0.8f, 0.0f, 1.0f);
 			Context->DrawIndexedPrimitives(GL_TRIANGLES, 96, GL_UNSIGNED_SHORT, (108 + 360 + 12) * 2);
@@ -461,61 +494,22 @@ void lcViewManipulator::DrawTrainTrack(lcPiece* Piece, lcContext* Context, float
 		else if (TrackTool == lcTrackTool::RotateTrainTrackLeft)
 		{
 			Context->DrawIndexedPrimitives(GL_TRIANGLES, 96, GL_UNSIGNED_SHORT, (108 + 360 + 12) * 2);
+			Context->DrawIndexedPrimitives(GL_TRIANGLES, 72, GL_UNSIGNED_SHORT, (108 + 360 + 12 + 192) * 2);
 
 			Context->SetColor(0.8f, 0.8f, 0.0f, 1.0f);
 			Context->DrawIndexedPrimitives(GL_TRIANGLES, 96, GL_UNSIGNED_SHORT, (108 + 360 + 12 + 96) * 2);
 		}
-		else
+		else if (TrackTool == lcTrackTool::InsertTrainTrack)
 		{
 			Context->DrawIndexedPrimitives(GL_TRIANGLES, 192, GL_UNSIGNED_SHORT, (108 + 360 + 12) * 2);
-		}
-	}
 
-	for (quint32 ConnectionIndex = 0; ConnectionIndex < Connections.size(); ConnectionIndex++)
+			Context->SetColor(0.8f, 0.8f, 0.0f, 1.0f);
+			Context->DrawIndexedPrimitives(GL_TRIANGLES, 72, GL_UNSIGNED_SHORT, (108 + 360 + 12 + 192) * 2);
+		}
+		else
 		{
-		if (Piece->IsTrainTrackConnected(ConnectionIndex))
+			Context->DrawIndexedPrimitives(GL_TRIANGLES, 192 + 72, GL_UNSIGNED_SHORT, (108 + 360 + 12) * 2);
-			continue;
-
-		const lcMatrix44& Transform = Connections[ConnectionIndex].Transform;
-		lcVector3 Start = Transform.GetTranslation();
-		lcVector3 Direction = lcVector3(Transform[0]) * 100;
-
-		if (Piece->GetFocusSection() >= LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST)
-		{
-			quint32 FocusIndex = Piece->GetFocusSection() - LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST;
-
-			if (FocusIndex != ConnectionIndex)
-				continue;
-
-			Start = lcVector3(0.0f, 0.0f, 0.0f);
-			Direction = lcVector3(100.0f, 0.0f, 0.0f);
 		}
-
-		lcVector3 Verts[static_cast<int>(lcTrainTrackType::Count) * 2];
-		int NumVerts = 0;
-
-		Verts[NumVerts++] = Start / OverlayScale;
-		Verts[NumVerts++] = (Start + Direction) / OverlayScale;
-
-		Verts[NumVerts++] = Verts[0];
-		Verts[NumVerts++] = (Start + lcMul31(Direction, lcMatrix44RotationZ(LC_DTOR * 60))) / OverlayScale;
-
-		Verts[NumVerts++] = Verts[0];
-		Verts[NumVerts++] = (Start + lcMul31(Direction, lcMatrix44RotationZ(LC_DTOR * -60))) / OverlayScale;
-
-		Verts[NumVerts++] = Verts[0];
-		Verts[NumVerts++] = (Start + lcMul31(Direction, lcMatrix44RotationZ(LC_DTOR * 30))) / OverlayScale;
-
-		Verts[NumVerts++] = Verts[0];
-		Verts[NumVerts++] = (Start + lcMul31(Direction, lcMatrix44RotationZ(LC_DTOR * -30))) / OverlayScale;
-
-		Context->SetColor(1.0f, 1.0f, 1.0f, 1.0f);
-
-		Context->SetVertexBufferPointer(Verts);
-		Context->ClearIndexBuffer();
-		Context->SetVertexFormatPosition(3);
-
-		Context->DrawPrimitives(GL_LINES, 0, NumVerts);
 	}
 }
 
@@ -875,6 +869,7 @@ bool lcViewManipulator::IsTrackToolAllowed(lcTrackTool TrackTool, quint32 Allowe
 
 		case lcTrackTool::RotateTrainTrackRight:
 		case lcTrackTool::RotateTrainTrackLeft:
+		case lcTrackTool::InsertTrainTrack:
 			return true;
 
 		case lcTrackTool::ScalePlus:
@@ -907,11 +902,13 @@ std::pair<lcTrackTool, quint32> lcViewManipulator::UpdateSelectMove()
 	const float OverlayMovePlaneSize = 0.5f * OverlayScale;
 	const float OverlayMoveArrowSize = 1.5f * OverlayScale;
 	const float OverlayMoveArrowCapRadius = 0.1f * OverlayScale;
+	const float OverlayArrowBodyRadius = 0.05f * OverlayScale;
 	const float OverlayRotateArrowStart = 1.0f * OverlayScale;
 	const float OverlayRotateArrowEnd = 1.5f * OverlayScale;
 	const float OverlayTrainTrackStart = 0.0f * OverlayScale;
 	const float OverlayTrainTrackEnd = 0.5f * OverlayScale;
 	const float OverlayTrainTrackDistance = 0.5f * OverlayScale;
+	const float OverlayTrainTrackInsert = 0.3f * OverlayScale;
 	const float OverlayScaleRadius = 0.125f;
 
 	lcTool CurrentTool = gMainWindow->GetTool();
@@ -1113,43 +1110,14 @@ std::pair<lcTrackTool, quint32> lcViewManipulator::UpdateSelectMove()
 						ClosestIntersectionDistance = IntersectionDistance;
 						NewTrackSection = Piece->GetFocusSection() - LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST;
 					}
-				}
-			}
 
-			ActiveModel->UpdateTrainTrackConnections(Piece);
+					if (Proj1 > -OverlayTrainTrackInsert + OverlayTrainTrackEnd - OverlayArrowBodyRadius && Proj1 < OverlayTrainTrackInsert + OverlayTrainTrackEnd - OverlayArrowBodyRadius && Proj2 > -OverlayTrainTrackInsert && Proj2 < OverlayTrainTrackInsert)
-
-			const std::vector<lcTrainTrackConnection>& Connections = TrainTrackInfo->GetConnections();
-
-			for (quint32 ConnectionIndex = 0; ConnectionIndex < Connections.size(); ConnectionIndex++)
 					{
-				if (Piece->IsTrainTrackConnected(ConnectionIndex))
+						NewTrackTool = lcTrackTool::InsertTrainTrack;
-					continue;
-
-				const lcMatrix44& Transform = Connections[ConnectionIndex].Transform;
-				lcVector3 Verts[static_cast<int>(lcTrainTrackType::Count)];
-				int NumVerts = 0;
-
-				Verts[NumVerts++] = (Transform.GetTranslation() + lcVector3(Transform[0]) * 100) / 1;
-				Verts[NumVerts++] = (Transform.GetTranslation() + lcMul31(lcVector3(Transform[0]), lcMatrix44RotationZ(LC_DTOR * 60)) * 100) / 1;
-				Verts[NumVerts++] = (Transform.GetTranslation() + lcMul31(lcVector3(Transform[0]), lcMatrix44RotationZ(LC_DTOR * -60)) * 100) / 1;
-				Verts[NumVerts++] = (Transform.GetTranslation() + lcMul31(lcVector3(Transform[0]), lcMatrix44RotationZ(LC_DTOR * 30)) * 100) / 1;
-				Verts[NumVerts++] = (Transform.GetTranslation() + lcMul31(lcVector3(Transform[0]), lcMatrix44RotationZ(LC_DTOR * -30)) * 100) / 1;
-
-				for (int VertexIndex = 0; VertexIndex < NumVerts; VertexIndex++)
-				{
-					Verts[VertexIndex] = lcMul31(Verts[VertexIndex], WorldMatrix);
-
-					float IntersectionDistance = lcRayPointDistance(Verts[VertexIndex], Start, End);
-
-					if (IntersectionDistance < 40)
-					{
-						if (IntersectionDistance > ClosestIntersectionDistance)
-							continue;
-
-						NewTrackTool = lcTrackTool::Insert;
 						ClosestIntersectionDistance = IntersectionDistance;
-						NewTrackSection = lcTrainTrackInfo::EncodeTrackToolSection(ConnectionIndex, static_cast<lcTrainTrackType>(VertexIndex));
+						NewTrackSection = Piece->GetFocusSection() - LC_PIECE_SECTION_TRAIN_TRACK_CONNECTION_FIRST;
 					}
+
 				}
 			}
 		}

common/lc_viewmanipulator.h

@@ -17,7 +17,7 @@ public:
 	static void DestroyResources(lcContext* Context);
 
 protected:
-	void DrawTrainTrack(lcPiece* Piece, lcContext* Context, float OverlayScale, lcTrackTool TrackTool);
+	void DrawTrainTrack(lcPiece* Piece, lcContext* Context, lcTrackTool TrackTool);
 
 	static bool IsTrackToolAllowed(lcTrackTool TrackTool, quint32 AllowedTransforms);