TSH&R-PC

10 files changed, 960 insertions, 0 deletions

diff --git a/tools/objectsnapper/code/commands/snapselected.cpp b/tools/objectsnapper/code/commands/snapselected.cpp
new file mode 100644
index 0000000..e6ab048
--- /dev/null
+++ b/tools/objectsnapper/code/commands/snapselected.cpp
@@ -0,0 +1,435 @@
+//=============================================================================
+// Copyright (C) 2002 Radical Entertainment Ltd.  All rights reserved.
+//
+// File:        
+//
+// Description: Implement SnapSelectedCmd
+//
+// History:     18/03/2002 + Created -- Cary Brisebois
+//
+//=============================================================================
+
+//========================================
+// System Includes
+//========================================
+// Foundation Tech
+
+//========================================
+// Project Includes
+//========================================
+#include "snapselected.h"
+#include "utility/MUI.h"
+#include "utility/mext.h"
+
+
+//******************************************************************************
+//
+// Global Data, Local Data, Local Classes
+//
+//******************************************************************************
+
+const char* SnapSelectedCmd::stringId = "OS_SnapSelected";
+const double OSScale = 100.0;
+
+enum SnapType
+{
+    ALL,
+    SINGLE,
+    TREELINE
+};
+
+//******************************************************************************
+//
+// Public Member Functions
+//
+//******************************************************************************
+
+//==============================================================================
+// SnapSelectedCmd::SnapSelectedCmd
+//==============================================================================
+// Description: Constructor.
+//
+// Parameters:	None.
+//
+// Return:      N/A.
+//
+//==============================================================================
+SnapSelectedCmd::SnapSelectedCmd()
+{
+    mObjDagPaths.clear();
+    mNewPositions.clear();
+    mOldPositions.clear();
+}
+
+//==============================================================================
+// SnapSelectedCmd::~SnapSelectedCmd
+//==============================================================================
+// Description: Destructor.
+//
+// Parameters:	None.
+//
+// Return:      N/A.
+//
+//==============================================================================
+SnapSelectedCmd::~SnapSelectedCmd()
+{
+}
+
+//==============================================================================
+// SnapSelectedCmd::creator
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      void
+//
+//==============================================================================
+void* SnapSelectedCmd::creator()
+{
+    return new SnapSelectedCmd();
+}
+
+//==============================================================================
+// SnapSelectedCmd::doit
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ( const MArgList& args )
+//
+// Return:      MStatus 
+//
+//==============================================================================
+MStatus SnapSelectedCmd::doIt( const MArgList& args )
+{
+    if ( !MUI::ConfirmDialog( "Are you sure you want to snap these objects?\nYou can not UNDO this command." ) == MUI::YES )
+    {
+        //quit.
+        return MStatus::kSuccess;
+    }
+
+    assert( args.length() == 2 );
+
+    double OFFSET = 0;
+    int snapType = ALL;
+
+    args.get( 0, OFFSET );
+    args.get( 1, snapType );
+
+    OFFSET *= OSScale;
+
+    MSelectionList list;
+    MGlobal::getActiveSelectionList( list );
+    
+    MItSelectionList i( list );
+
+    MFnDagNode fnDagNode;
+    MDagPath dagPath;
+    MItDag itDag;
+    MObject obj;
+    MDagPath objDagPath;
+    MObject childObj;
+
+    //For all selected objects.
+    for ( ; !i.isDone(); i.next() )
+    {
+        i.getDagPath( dagPath );
+
+        itDag.reset( dagPath, MItDag::kBreadthFirst, MFn::kTransform );
+
+        for ( ; !itDag.isDone() && itDag.depth() < 2; itDag.next() )
+        {
+            obj = itDag.item();
+            fnDagNode.setObject( obj );
+
+            const char* objName = fnDagNode.name().asChar();
+            const char* objTypeName = fnDagNode.typeName().asChar();
+    
+            int childCount = fnDagNode.childCount();
+
+            int whichChild;
+
+            for ( whichChild = 0; whichChild < childCount; ++whichChild )
+            {
+                childObj = fnDagNode.child( whichChild );
+                fnDagNode.setObject( childObj );
+
+                const char* childObjName = fnDagNode.name().asChar();
+                const char* childObjTypeName = fnDagNode.typeName().asChar();
+
+                //Find a mesh below me and move my pivot to the intersection.
+                itDag.getPath( objDagPath );
+                MFnTransform fnTrans( objDagPath );
+
+                //Get all the child meshes of this obj node to prevent snapping to 
+                //something that is part of me.
+
+                MStringArray meshNames;
+
+                GetChildMeshNames( objDagPath, meshNames );
+
+
+                MVector pos = fnTrans.translation( MSpace::kWorld );
+                MPoint rotate = fnTrans.rotatePivot( MSpace::kWorld );
+                MVector rayDir( 0, -1.0, 0 );
+
+                MItDag meshIt( MItDag::kDepthFirst, MFn::kMesh );
+                MDagPath meshDagPath;
+                MPointArray intersectPoints;
+
+                bool found = false;
+
+                for ( ; !meshIt.isDone(); meshIt.next() )
+                {
+                    meshIt.getPath( meshDagPath );
+                    MFnMesh mesh( meshDagPath );
+
+                    const char* meshName = mesh.name().asChar();                        
+
+                    unsigned int i;
+                    bool nameFound = false;
+                    for ( i = 0; i < meshNames.length(); ++i )
+                    {
+                        if ( meshNames[i] == mesh.name() )
+                        {
+                            nameFound = true;
+                            break;
+                        }
+                    }
+
+                    if ( nameFound )
+                    {
+                        continue;
+                    }
+
+                    if ( snapType == TREELINE )
+                    {
+
+                    }
+                    else
+                    {
+                        mesh.intersect( rotate, rayDir, intersectPoints, 0.001f, MSpace::kWorld );
+
+                        if ( intersectPoints.length() > 0 )
+                        {
+                            MVector diff( intersectPoints[ 0 ] - rotate );
+                            diff.y += OFFSET;
+
+                            //Prepare the command for the redo it ( which does all the work )
+                            mObjDagPaths.append( fnTrans.dagPath() );
+                            mNewPositions.append( diff );
+
+                            //Save the old position.
+                            MVector vector = fnTrans.translation( MSpace::kObject );
+                            mOldPositions.append( vector );
+
+//                            //Move the transform.
+//                            fnTrans.translateBy( diff, MSpace::kWorld );
+
+                            found = true;
+
+                            break;
+                        }
+                    }
+                }
+
+                if ( !found )
+                {
+                    //Look up
+                    MPoint rotate = fnTrans.rotatePivot( MSpace::kWorld );
+                    MVector rayDir( 0, 1.0, 0 );
+
+                    MItDag meshIt( MItDag::kDepthFirst, MFn::kMesh );
+                    MDagPath meshDagPath;
+                    MPointArray intersectPoints;
+
+                    for ( ; !meshIt.isDone(); meshIt.next() )
+                    {
+                        meshIt.getPath( meshDagPath );
+                        MFnMesh mesh( meshDagPath );
+
+                        const char* meshName = mesh.name().asChar();                        
+
+                        unsigned int i;
+                        bool nameFound = false;
+                        for ( i = 0; i < meshNames.length(); ++i )
+                        {
+                            if ( meshNames[i] == mesh.name() )
+                            {
+                                nameFound = true;
+                                break;
+                            }
+                        }
+
+                        if ( nameFound )
+                        {
+                            continue;
+                        }
+
+                        if ( snapType == TREELINE )
+                        {
+
+                        }
+                        else
+                        {
+                            mesh.intersect( rotate, rayDir, intersectPoints, 0.001f, MSpace::kWorld );
+
+                            if ( intersectPoints.length() > 0 )
+                            {
+                                MVector diff( intersectPoints[ 0 ] - rotate );
+                                diff.y -= OFFSET;
+
+                                //Prepare the command for the redo it ( which does all the work )
+                                mObjDagPaths.append( fnTrans.dagPath() );
+                                mNewPositions.append( diff );
+
+                                //Save the old position.
+                                MVector vector = fnTrans.translation( MSpace::kObject );
+                                mOldPositions.append( vector );
+
+//                                //Move the transform.
+//                                fnTrans.translateBy( diff, MSpace::kWorld );
+
+                                found = true;
+
+                                break;
+                            }
+                        }
+                    }
+                }
+
+                if ( !found )
+                {
+                    MString errorMsg( "The object: " );
+                    errorMsg += fnTrans.name();
+                    errorMsg += MString( " has no mesh below it.\nNo snapping done on it." );
+
+                    MUI::InfoDialog( errorMsg.asChar() );
+                }
+            }
+
+            if ( snapType == SINGLE )
+            {
+                //No more iterations.
+                break;
+            }
+        }
+    }
+
+    redoIt();
+
+    return MStatus::kSuccess;
+}
+
+//=============================================================================
+// SnapSelectedCmd::undoIt
+//=============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      MStatus 
+//
+//=============================================================================
+MStatus SnapSelectedCmd::undoIt()
+{
+    unsigned int i;
+    for ( i = 0; i < mObjDagPaths.length(); ++i )
+    {
+        if ( mObjDagPaths[i].isValid() )
+        {
+            //Move this guy to the new position.
+            MFnTransform fnTransform( mObjDagPaths[i] );
+
+            fnTransform.setTranslation( mOldPositions[i], MSpace::kObject );
+        }
+        else
+        {
+            MExt::DisplayError( "Error performing snap due to invalid object or change in heirarchy" );
+        }
+    }
+
+    return MStatus::kSuccess;
+}
+
+//=============================================================================
+// SnapSelectedCmd::redoIt
+//=============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      MStatus 
+//
+//=============================================================================
+MStatus SnapSelectedCmd::redoIt()
+{
+    unsigned int i;
+    for ( i = 0; i < mObjDagPaths.length(); ++i )
+    {
+        if ( mObjDagPaths[i].isValid() )
+        {
+            //Move this guy to the new position.
+            MFnTransform fnTransform( mObjDagPaths[i] );
+
+            fnTransform.translateBy( mNewPositions[i], MSpace::kWorld );
+        }
+        else
+        {
+            MExt::DisplayError( "Error performing snap due to invalid object or change in heirarchy" );
+        }
+    }
+
+    return MStatus::kSuccess;
+}
+
+//=============================================================================
+// SnapSelectedCmd::isUndoable
+//=============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      bool 
+//
+//=============================================================================
+bool SnapSelectedCmd::isUndoable() const
+{
+    return true;
+}
+
+//******************************************************************************
+//
+// Private Member Functions
+//
+//******************************************************************************
+
+//==============================================================================
+// SnapSelectedCmd::GetChildMeshNames
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ( MDagPath objDagPath, MStringArray& names )
+//
+// Return:      void 
+//
+//==============================================================================
+void SnapSelectedCmd::GetChildMeshNames( MDagPath objDagPath, MStringArray& names )
+{
+    names.clear();
+
+    MItDag itDag;
+    itDag.reset( objDagPath, MItDag::kDepthFirst, MFn::kMesh );
+
+    for ( ; !itDag.isDone(); itDag.next() )
+    {
+            MDagPath dagPath;
+            itDag.getPath( dagPath );
+            MFnMesh fnMesh( dagPath );
+
+            names.append( fnMesh.name() );
+
+            const char* meshName = fnMesh.name().asChar();
+    }
+
+}
diff --git a/tools/objectsnapper/code/commands/snapselected.h b/tools/objectsnapper/code/commands/snapselected.h
new file mode 100644
index 0000000..55e0f0d
--- /dev/null
+++ b/tools/objectsnapper/code/commands/snapselected.h
@@ -0,0 +1,59 @@
+//=============================================================================
+// Copyright (C) 2002 Radical Entertainment Ltd.  All rights reserved.
+//
+// File:        snapselectedcmd.h
+//
+// Description: Blahblahblah
+//
+// History:     18/03/2002 + Created -- Cary Brisebois
+//
+//=============================================================================
+
+#ifndef SNAPSELECTEDCMD_H
+#define SNAPSELECTEDCMD_H
+
+//========================================
+// Nested Includes
+//========================================
+#include "main/mayaincludes.h"
+#include "precompiled/PCH.h"
+
+//========================================
+// Forward References
+//========================================
+
+//=============================================================================
+//
+// Synopsis:    Blahblahblah
+//
+//=============================================================================
+
+class SnapSelectedCmd : public MPxCommand
+{
+public:
+    SnapSelectedCmd();
+    virtual ~SnapSelectedCmd();
+
+    static void* creator();
+    virtual MStatus doIt( const MArgList& args );
+    virtual MStatus undoIt();
+    virtual MStatus redoIt();
+    virtual bool isUndoable() const;
+
+    static const char* stringId;
+
+private:
+
+    MDagPathArray   mObjDagPaths;
+    MVectorArray    mOldPositions;
+    MVectorArray    mNewPositions;
+    
+    void GetChildMeshNames( MDagPath objDagPath, MStringArray& names );
+
+    //Prevent wasteful constructor creation.
+SnapSelectedCmd( const SnapSelectedCmd& snapselectedcmd );
+SnapSelectedCmd& operator=( const SnapSelectedCmd& snapselectedcmd );
+};
+
+#endif //SNAPSELECTEDCMD_H
+
diff --git a/tools/objectsnapper/code/main/mayaincludes.h b/tools/objectsnapper/code/main/mayaincludes.h
new file mode 100644
index 0000000..5f91009
--- /dev/null
+++ b/tools/objectsnapper/code/main/mayaincludes.h
@@ -0,0 +1,49 @@
+#include <maya/M3dView.h>
+#include <maya/MArgList.h>
+#include <maya/MCursor.h>
+#include <maya/MDagPath.h>
+#include <maya/MDGMessage.h>
+#include <maya/MDGModifier.h>
+#include <maya/MDoubleArray.h>
+#include <maya/MEulerRotation.h>
+#include <maya/MFnData.h>
+#include <maya/MFnDagNode.h>
+#include <maya/MFnDependencyNode.h>
+#include <maya/MFnDoubleArrayData.h>
+#include <maya/MFnIkJoint.h>
+#include <maya/MFnIntArrayData.h>
+#include <maya/MFnMatrixData.h>
+#include <maya/MFnMesh.h>
+#include <maya/MFnMessageAttribute.h>
+#include <maya/MFnNumericAttribute.h>
+#include <maya/MFnStringArrayData.h>
+#include <maya/MFnTransform.h>
+#include <maya/MFnTypedAttribute.h>
+#include <maya/MGlobal.h>
+#include <maya/MIntArray.h>
+#include <maya/MItDag.h>
+#include <maya/MItMeshVertex.h>
+#include <maya/MItSelectionList.h>
+#include <maya/MMatrix.h>
+#include <maya/MNodeMessage.h>
+#include <maya/MObject.h>
+#include <maya/MObjectArray.h>
+#include <maya/MPlug.h>
+#include <maya/MPlugArray.h>
+#include <maya/MPoint.h>
+#include <maya/MPointArray.h>
+#include <maya/MPxCommand.h>
+#include <maya/MPxContext.h>
+#include <maya/MPxContextCommand.h>
+#include <maya/MPxLocatorNode.h>
+#include <maya/MQuaternion.h>
+#include <maya/MSelectionList.h>
+#include <maya/MStatus.h>
+#include <maya/MString.h>
+#include <maya/MStringArray.h>
+#include <maya/MTransformationMatrix.h>
+#include <maya/MTypeId.h>
+#include <maya/MUiMessage.h>
+#include <maya/MVector.h>
+
+#include <assert.h>
\ No newline at end of file
diff --git a/tools/objectsnapper/code/main/pluginMain.cpp b/tools/objectsnapper/code/main/pluginMain.cpp
new file mode 100644
index 0000000..0e38b04
--- /dev/null
+++ b/tools/objectsnapper/code/main/pluginMain.cpp
@@ -0,0 +1,76 @@
+//
+// Copyright (C) 2002 Radical Entertainment 
+// 
+// File: pluginMain.cpp
+//
+// Author: Maya SDK Wizard
+//
+#include <maya/MFnPlugin.h>
+
+#include "utility/mayahandles.h"
+
+#include "pluginmain.h"
+#include "commands/snapselected.h"
+
+MStatus initializePlugin( MObject obj )
+//
+//	Description:
+//		this method is called when the plug-in is loaded into Maya.  It 
+//		registers all of the services that this plug-in provides with 
+//		Maya.
+//
+//	Arguments:
+//		obj - a handle to the plug-in object (use MFnPlugin to access it)
+//
+{ 
+	MStatus   status;
+    
+    MayaHandles::SetHInstance( (void*)(MhInstPlugin) );
+
+    MFnPlugin plugin( obj, "Radical Entertainment", "4.0.1", "Any");
+
+	// Add plug-in feature registration here
+	//
+
+    //Register Nodes
+
+    //Register Contexts
+
+    //Register Commands
+    REGISTER_COMMAND( plugin, SnapSelectedCmd );
+    
+
+    //Run any startup scripts.
+    MGlobal::sourceFile( "os_main.mel" );
+
+    return status; 
+}
+
+MStatus uninitializePlugin( MObject obj )
+//
+//	Description:
+//		this method is called when the plug-in is unloaded from Maya. It 
+//		deregisters all of the services that it was providing.
+//
+//	Arguments:
+//		obj - a handle to the plug-in object (use MFnPlugin to access it)
+//
+{
+	MStatus   status;
+	MFnPlugin plugin( obj );
+
+	// Add plug-in feature deregistration here
+	//
+
+    //Run any cleanup scripts.
+    MGlobal::sourceFile( "os_cleanup.mel" );
+
+    //Unregister Commands
+
+    //Unregister Contexts
+
+    //Unregister Nodes
+
+	return status;
+}
+
diff --git a/tools/objectsnapper/code/main/pluginMain.h b/tools/objectsnapper/code/main/pluginMain.h
new file mode 100644
index 0000000..502f6fb
--- /dev/null
+++ b/tools/objectsnapper/code/main/pluginMain.h
@@ -0,0 +1,40 @@
+#include "mayaincludes.h"
+
+//----------------------------------------
+// MACROS
+//----------------------------------------
+
+#define REGISTER_COMMAND( p, c ) if ( ! ( ( p ).registerCommand( c##::stringId, \
+                                                                 c##::creator ) \
+                                        ) \
+                                    ) return MS::kFailure
+
+#define REGISTER_CONTEXT( p, c ) if ( ! ( ( p ).registerContextCommand( c##::stringId, \
+                                                                        c##Cmd::creator ) \
+                                        ) \
+                                    ) return MS::kFailure
+
+
+#define REGISTER_LOCATOR( p, n ) if ( ! ( ( p ).registerNode( n##::stringId, \
+                                                              n##::id, \
+                                                              n##::creator, \
+                                                              n##::initialize, \
+                                                              MPxNode::kLocatorNode ) \
+                                      ) \
+                                 ) return MS::kFailure
+
+#define REGISTER_NODE( p, n ) if ( ! ( ( p ).registerNode( n##::stringId, \
+                                                           n##::id, \
+                                                           n##::creator, \
+                                                           n##::initialize ) \
+                                      ) \
+                                 ) return MS::kFailure
+
+#define DEREGISTER_COMMAND( p, c ) ( p ).deregisterCommand( c##::stringId )
+
+#define DEREGISTER_CONTEXT( p, c ) ( p ).deregisterContextCommand( c##::stringId )
+
+//#define DEREGISTER_NODE( p, n ) n##::Unload();\
+//                               ( p ).deregisterNode( n##::id )
+
+#define DEREGISTER_NODE( p, n ) ( p ).deregisterNode( n##::id )
diff --git a/tools/objectsnapper/code/main/stdafx.h b/tools/objectsnapper/code/main/stdafx.h
new file mode 100644
index 0000000..3152a3f
--- /dev/null
+++ b/tools/objectsnapper/code/main/stdafx.h
@@ -0,0 +1,19 @@
+#ifndef STDAFX
+#define STDAFX
+
+//-----------------------------------------------------------------------------
+// Copyright (C) 2001 Radical Entertainment Ltd.  All rights reserved.
+//
+// stdafx.h
+//
+// Description:  Header wrapper for using MFC.
+//
+// Modification History:
+//  + Created Oct 12, 2001 -- bkusy 
+//-----------------------------------------------------------------------------
+#define VC_EXTRALEAN
+#include <afxwin.h>
+#include <afxdlgs.h>
+
+
+#endif
\ No newline at end of file
diff --git a/tools/objectsnapper/code/precompiled/PCH.cpp b/tools/objectsnapper/code/precompiled/PCH.cpp
new file mode 100644
index 0000000..5f77b4a
--- /dev/null
+++ b/tools/objectsnapper/code/precompiled/PCH.cpp
@@ -0,0 +1 @@
+#include "PCH.h"
\ No newline at end of file
diff --git a/tools/objectsnapper/code/precompiled/PCH.h b/tools/objectsnapper/code/precompiled/PCH.h
new file mode 100644
index 0000000..c14ca45
--- /dev/null
+++ b/tools/objectsnapper/code/precompiled/PCH.h
@@ -0,0 +1,50 @@
+#include <maya/M3dView.h>
+#include <maya/MArgList.h>
+#include <maya/MCursor.h>
+#include <maya/MDagPath.h>
+#include <maya/MDagPathArray.h>
+#include <maya/MDGMessage.h>
+#include <maya/MDGModifier.h>
+#include <maya/MDoubleArray.h>
+#include <maya/MEulerRotation.h>
+#include <maya/MFnData.h>
+#include <maya/MFnDagNode.h>
+#include <maya/MFnDependencyNode.h>
+#include <maya/MFnDoubleArrayData.h>
+#include <maya/MFnIkJoint.h>
+#include <maya/MFnIntArrayData.h>
+#include <maya/MFnMatrixData.h>
+#include <maya/MFnMesh.h>
+#include <maya/MFnMessageAttribute.h>
+#include <maya/MFnNumericAttribute.h>
+#include <maya/MFnStringArrayData.h>
+#include <maya/MFnTransform.h>
+#include <maya/MFnTypedAttribute.h>
+#include <maya/MGlobal.h>
+#include <maya/MIntArray.h>
+#include <maya/MItDag.h>
+#include <maya/MItMeshVertex.h>
+#include <maya/MItSelectionList.h>
+#include <maya/MMatrix.h>
+#include <maya/MNodeMessage.h>
+#include <maya/MObject.h>
+#include <maya/MObjectArray.h>
+#include <maya/MPlug.h>
+#include <maya/MPlugArray.h>
+#include <maya/MPoint.h>
+#include <maya/MPointArray.h>
+#include <maya/MPxCommand.h>
+#include <maya/MPxContext.h>
+#include <maya/MPxContextCommand.h>
+#include <maya/MPxLocatorNode.h>
+#include <maya/MQuaternion.h>
+#include <maya/MSelectionList.h>
+#include <maya/MStatus.h>
+#include <maya/MString.h>
+#include <maya/MStringArray.h>
+#include <maya/MTransformationMatrix.h>
+#include <maya/MTypeId.h>
+#include <maya/MUiMessage.h>
+#include <maya/MVector.h>
+
+#include <assert.h>
\ No newline at end of file
diff --git a/tools/objectsnapper/code/scripts/os_cleanup.mel b/tools/objectsnapper/code/scripts/os_cleanup.mel
new file mode 100644
index 0000000..020de04
--- /dev/null
+++ b/tools/objectsnapper/code/scripts/os_cleanup.mel
@@ -0,0 +1,3 @@
+
+
+os_RemoveUI();
\ No newline at end of file
diff --git a/tools/objectsnapper/code/scripts/os_main.mel b/tools/objectsnapper/code/scripts/os_main.mel
new file mode 100644
index 0000000..7a8c567
--- /dev/null
+++ b/tools/objectsnapper/code/scripts/os_main.mel
@@ -0,0 +1,228 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2001 Radical Entertainment Ltd.  All rights reserved.
+//
+// TE_main.mel
+//
+// Description: Installs the Object Snapper (OS) interface.
+//              As a convention all Object Snapper global procedures 
+//              and global variables are prefixed with "os_".  All commands 
+//              exposed through OS plugins are prefixed with "OS_".
+//
+//              MCB = Menu Call Back
+//              BCB = Button Call Back
+//
+// Modification History:
+//  + Created March 18 2002 -- Cary Brisebois
+//-----------------------------------------------------------------------------
+
+
+global float $gOS_Offset = 0.10;
+
+
+//-----------------------------------------------------------------------------
+// o s _ b r e a k p o i n t 
+//
+// Synopsis:
+//
+// Parameters:  NONE
+//
+// Returns:     NOTHING
+//
+// Constraints: NONE
+//
+//-----------------------------------------------------------------------------
+global proc os_breakpoint( string $tag )
+{
+    confirmDialog -m ( "BreakPoint: " + $tag );
+}
+
+//-----------------------------------------------------------------------------
+// o s _ M C B _ A b o u t
+//
+// Synopsis:    Display an About Object Snapper window.
+//
+// Parameters:  NONE
+//
+// Returns:     NOTHING
+//
+// Constraints: NONE
+//
+//-----------------------------------------------------------------------------
+global proc os_MCB_About()
+{
+	string $pluginVersion = "1.0";
+
+    string $message = ( "\nSimpsons Road Rage Object Snapper.\n\n" +
+                        "Release " + $pluginVersion + "\n" +
+                        "(c) 2001, Radical Entertainment, Ltd.\n\n" );
+
+
+    confirmDialog -title "About Object Snapper"
+                  -message $message
+                  -button "OK"
+                  -defaultButton "OK";
+}
+
+//-----------------------------------------------------------------------------
+// o s _ d o M a i n M e n u I t e m s
+//
+// Synopsis:    Creates the OS menu on the menu handle passed in.
+//
+// Parameters:  NONE
+//
+// Returns:     NOTHING
+//
+// Constraints: NONE
+//
+//-----------------------------------------------------------------------------
+global proc os_doMainMenuItems( string $menu )
+{
+    menu -edit -tearOff true -allowOptionBoxes true $menu;
+
+        menuItem -label "Snap Single Selected" -command ( "os_MCB_SnapSingleSelected()" );
+
+        menuItem -divider true; 
+
+        menuItem -label "Snap All Selected" -command ( "os_MCB_SnapSelected()" );
+
+        menuItem -divider true; 
+
+        menuItem -label "Snap Tree Line" -command ( "os_MCB_SnapTreeLine()" );
+
+        menuItem -divider true; 
+
+        menuItem -label "About" -command "os_MCB_About()";
+
+        menuItem -optionBox true -command "os_MCB_OSOptions()";
+
+    setParent -m ..;
+}
+
+//-----------------------------------------------------------------------------
+// o s _ I n s t a l l U I
+//
+// Synopsis:
+//
+// Parameters:  NONE
+//
+// Returns:     NOTHING
+//
+// Constraints: NONE
+//
+//-----------------------------------------------------------------------------
+global proc os_InstallUI()
+{
+
+    global string $gMainWindow;
+
+    //
+    // Install OS menu as a root menu.
+    //
+    if ( `menu -exists os_MainMenu` ) deleteUI os_MainMenu;
+    menu -label "Object Snapper" -allowOptionBoxes true -parent $gMainWindow os_MainMenu; 
+
+    os_doMainMenuItems "os_MainMenu";
+}
+
+//==============================================================================
+// global proc os_RemoveUI
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      global 
+//
+//==============================================================================
+global proc os_RemoveUI()
+{
+    if ( `menu -exists os_MainMenu` ) deleteUI os_MainMenu;
+    if ( `window -exists os_OptionWindow` ) deleteUI os_OptionWindow;
+}
+
+//==============================================================================
+// global proc os_MCB_SnapSelected
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      global 
+//
+//==============================================================================
+global proc os_MCB_SnapSelected()
+{
+    global float $gOS_Offset;
+
+    OS_SnapSelected( $gOS_Offset, 0 );
+}
+ 
+
+//==============================================================================
+// global proc os_MCB_SnapSingleSelected
+//==============================================================================
+// Description: Comment 
+//
+// Parameters:  ()
+//
+// Return:      global 
+//
+//==============================================================================
+global proc os_MCB_SnapSingleSelected()
+{
+    global float $gOS_Offset;
+
+    OS_SnapSelected( $gOS_Offset, 1 );
+}
+
+//=============================================================================
+// global proc os_MCB_SnapTreeLine
+//=============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      global 
+//
+//=============================================================================
+global proc os_MCB_SnapTreeLine()
+{
+    global float $gOS_Offset;
+
+    OS_SnapSelected( $gOS_Offset, 2 );
+}
+
+//==============================================================================
+// global proc os_MCB_OSOptions
+//==============================================================================
+// Description: Comment
+//
+// Parameters:  ()
+//
+// Return:      global 
+//
+//==============================================================================
+global proc os_MCB_OSOptions()
+{
+    global float $gOS_Offset;
+
+    if ( `window -exists os_OptionWindow` ) deleteUI os_OptionWindow;
+
+    window -title "Object Snapper Options" os_OptionWindow;
+
+    columnLayout;
+
+        rowLayout -nc 2;
+
+            text -label "Offset (M):";
+
+            floatField -min -10.0 -max 10.0 -value $gOS_Offset -cc ("$gOS_Offset = #1");
+
+        setParent ..;
+
+    setParent ..;
+
+    showWindow;
+}
+
+evalDeferred "os_InstallUI";
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