//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------

#include "editor/terrainEditor.h"
#include "game/collisionTest.h"
#include "terrain/terrData.h"
#include "gui/core/guiCanvas.h"
#include "console/consoleTypes.h"
#include "editor/terrainActions.h"
#include "interior/interiorInstance.h"
#include "interior/interior.h"
#include "game/gameConnection.h"
#include "sim/netObject.h"
#include "core/frameAllocator.h"

IMPLEMENT_CONOBJECT(TerrainEditor);

Selection::Selection() :
   Vector<GridInfo>(__FILE__, __LINE__),
   mName(0),
   mUndoFlags(0),
   mHashListSize(1024)
{
   VECTOR_SET_ASSOCIATION(mHashLists);

   // clear the hash list
   mHashLists.setSize(mHashListSize);
   reset();
}

Selection::~Selection()
{
}

void Selection::reset()
{
   for(U32 i = 0; i < mHashListSize; i++)
      mHashLists[i] = -1;
   clear();
}

U32 Selection::getHashIndex(const Point2I & pos)
{
   Point2F pnt = Point2F(pos.x, pos.y) + Point2F(1.3f,3.5f);
   return( (U32)(mFloor(mHashLists.size() * mFmod(pnt.len() * 0.618f, 1))) );
}

S32 Selection::lookup(const Point2I & pos)
{
   U32 index = getHashIndex(pos);

   S32 entry = mHashLists[index];

   while(entry != -1)
   {
      if((*this)[entry].mGridPos == pos)
         return(entry);

      entry = (*this)[entry].mNext;
   }

   return(-1);
}

void Selection::insert(GridInfo & info)
{
   U32 index = getHashIndex(info.mGridPos);

   info.mNext = mHashLists[index];
   info.mPrev = -1;

   if(info.mNext != -1)
      (*this)[info.mNext].mPrev = size();

   mHashLists[index] = size();

   push_back(info);
}

bool Selection::remove(const GridInfo & info)
{
   U32 index = getHashIndex(info.mGridPos);

   S32 entry = mHashLists[index];

   if(entry == -1)
      return(false);

   // front?
   if((*this)[entry].mGridPos == info.mGridPos)
      mHashLists[index] = (*this)[entry].mNext;

   while(entry != -1)
   {
      if((*this)[entry].mGridPos == info.mGridPos)
      {
         if((*this)[entry].mPrev != -1)
            (*this)[(*this)[entry].mPrev].mNext = (*this)[entry].mNext;
         if((*this)[entry].mNext != -1)
            (*this)[(*this)[entry].mNext].mPrev = (*this)[entry].mPrev;

         // swap?
         if(entry != (size() - 1))
         {
            U32 last = size() - 1;

            (*this)[entry] = (*this)[size()-1];

            if((*this)[entry].mPrev != -1)
               (*this)[(*this)[entry].mPrev].mNext = entry;
            else
            {
               U32 idx = getHashIndex((*this)[entry].mGridPos);
               AssertFatal(mHashLists[idx] == ((*this).size() - 1), "doh");
               mHashLists[idx] = entry;
            }
            if((*this)[entry].mNext != -1)
               (*this)[(*this)[entry].mNext].mPrev = entry;
         }

         pop_back();
         return(true);
      }

      entry = (*this)[entry].mNext;
   }
   return(false);
}

// add unique grid info into the selection - test uniqueness by grid position
bool Selection::add(GridInfo & info)
{
   S32 index = lookup(info.mGridPos);
   if(index != -1)
      return(false);

   insert(info);
   return(true);
}

bool Selection::getInfo(Point2I pos, GridInfo & info)
{
   S32 index = lookup(pos);
   if(index == -1)
      return(false);

   info = (*this)[index];
   return(true);
}

bool Selection::setInfo(GridInfo & info)
{
   S32 index = lookup(info.mGridPos);
   if(index == -1)
      return(false);

   S32 next = (*this)[index].mNext;
   S32 prev = (*this)[index].mPrev;

   (*this)[index] = info;
   (*this)[index].mNext = next;
   (*this)[index].mPrev = prev;

   return(true);
}

F32 Selection::getAvgHeight()
{
   if(!size())
      return(0);

   F32 avg = 0.f;
   for(U32 i = 0; i < size(); i++)
      avg += (*this)[i].mHeight;

   return(avg / size());
}

//------------------------------------------------------------------------------

Brush::Brush(TerrainEditor * editor) :
   mTerrainEditor(editor)
{
   mSize = mTerrainEditor->getBrushSize();
}

const Point2I & Brush::getPosition()
{
   return(mGridPos);
}

void Brush::setPosition(const Point3F & pos)
{
   Point2I gPos;
   mTerrainEditor->worldToGrid(pos, gPos);
   setPosition(gPos);
}

void Brush::setPosition(const Point2I & pos)
{
   mGridPos = pos;
   update();
}

//------------------------------------------------------------------------------

void Brush::update()
{
   rebuild();
   // soft selection?
//   if(mTerrainEditor->mEnableSoftBrushes)
//   {
//      Gui3DMouseEvent event;
//      TerrainAction * action = mTerrainEditor->lookupAction("softSelect");
//      AssertFatal(action, "Brush::update: no 'softSelect' action found!");

      //
//      mTerrainEditor->setCurrentSel(this);
//      action->process(this, event, true, TerrainAction::Process);
//      mTerrainEditor->resetCurrentSel();
//   }
}

//------------------------------------------------------------------------------

void BoxBrush::rebuild()
{
   reset();
   Filter filter;
   filter.set(1, &mTerrainEditor->mSoftSelectFilter);
   //
   // mSize should always be odd.

   S32 centerX = (mSize.x - 1) / 2;
   S32 centerY = (mSize.y - 1) / 2;

   F32 xFactorScale = F32(centerX) / (F32(centerX) + 0.5);
   F32 yFactorScale = F32(centerY) / (F32(centerY) + 0.5);

   for(S32 x = 0; x < mSize.x; x++)
   {
      for(S32 y = 0; y < mSize.y; y++)
      {
         GridInfo info;
         mTerrainEditor->getGridInfo(Point2I(mGridPos.x + x - centerX, mGridPos.y + y - centerY), info);
         if(mTerrainEditor->mEnableSoftBrushes && centerX != 0 && centerY != 0)
         {

            F32 xFactor = (mFabs(F32(centerX - x)) / F32(centerX)) * xFactorScale;
            F32 yFactor = (mFabs(F32(centerY - y)) / F32(centerY)) * yFactorScale;

            info.mWeight = filter.getValue(xFactor > yFactor ? xFactor : yFactor);
         }
         push_back(info);
      }
   }
}

//------------------------------------------------------------------------------

void EllipseBrush::rebuild()
{
   reset();
   Point3F center(F32(mSize.x - 1) / 2, F32(mSize.y - 1) / 2, 0);
   Filter filter;
   filter.set(1, &mTerrainEditor->mSoftSelectFilter);

   // a point is in a circle if:
   // x^2 + y^2 <= r^2
   // a point is in an ellipse if:
   // (ax)^2 + (by)^2 <= 1
   // where a = 1/halfEllipseWidth and b = 1/halfEllipseHeight

   // for a soft-selected ellipse,
   // the factor is simply the filtered: ((ax)^2 + (by)^2)

   F32 a = 1 / (F32(mSize.x) * 0.5);
   F32 b = 1 / (F32(mSize.y) * 0.5);

   for(U32 x = 0; x < mSize.x; x++)
   {
      for(U32 y = 0; y < mSize.y; y++)
      {
         F32 xp = center.x - x;
         F32 yp = center.y - y;

         F32 factor = (a * a * xp * xp) + (b * b * yp * yp);
         if(factor > 1)
            continue;

         GridInfo info;
         mTerrainEditor->getGridInfo(Point2I((S32)(mGridPos.x + x - center.x), (S32)(mGridPos.y + y - center.y)), info);
         if(mTerrainEditor->mEnableSoftBrushes)
            info.mWeight = filter.getValue(factor);

         push_back(info);
      }
   }
}

//------------------------------------------------------------------------------

SelectionBrush::SelectionBrush(TerrainEditor * editor) :
   Brush(editor)
{
   //... grab the current selection
}

void SelectionBrush::rebuild()
{
   reset();
   //... move the selection
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------

TerrainEditor::TerrainEditor() :
   mTerrainBlock(0),
   mMousePos(0,0,0),
   mMouseBrush(0),
   mInAction(false),
   mUndoLimit(20),
   mUndoSel(0),
   mRebuildEmpty(false),
   mRebuildTextures(false),
   mGridUpdateMin(255, 255),
   mGridUpdateMax(0, 0)
{
   VECTOR_SET_ASSOCIATION(mActions);
   VECTOR_SET_ASSOCIATION(mUndoList);
   VECTOR_SET_ASSOCIATION(mRedoList);
   VECTOR_SET_ASSOCIATION(mBaseMaterialInfos);

   //
   resetCurrentSel();

   //
   mBrushSize.set(1,1);
   mMouseBrush = new BoxBrush(this);
   mMouseDownSeq = 0;
   mIsDirty = false;
   mIsMissionDirty = false;
   mPaintMaterial = NULL;

   // add in all the actions here..
   mActions.push_back(new SelectAction(this));
   mActions.push_back(new SoftSelectAction(this));
   mActions.push_back(new OutlineSelectAction(this));
   mActions.push_back(new PaintMaterialAction(this));
   mActions.push_back(new RaiseHeightAction(this));
   mActions.push_back(new LowerHeightAction(this));
   mActions.push_back(new SetHeightAction(this));
   mActions.push_back(new SetEmptyAction(this));
   mActions.push_back(new ClearEmptyAction(this));
   mActions.push_back(new ScaleHeightAction(this));
   mActions.push_back(new BrushAdjustHeightAction(this));
   mActions.push_back(new AdjustHeightAction(this));
   mActions.push_back(new FlattenHeightAction(this));
   mActions.push_back(new SmoothHeightAction(this));
   mActions.push_back(new SetMaterialGroupAction(this));
   mActions.push_back(new SetModifiedAction(this));
   mActions.push_back(new ClearModifiedAction(this));

   // set the default action
   mCurrentAction = mActions[0];
   mRenderBrush = mCurrentAction->useMouseBrush();

   // persist data defaults
   mRenderBorder = true;
   mBorderHeight = 10;
   mBorderFillColor.set(0,255,0,20);
   mBorderFrameColor.set(0,255,0,128);
   mBorderLineMode = false;
   mSelectionHidden = false;
   mEnableSoftBrushes = false;
   mRenderVertexSelection = false;
   mProcessUsesBrush = false;
   mCurrentCursor = NULL;
   mCursorVisible = true;

   //
   mAdjustHeightVal = 10;
   mSetHeightVal = 100;
   mScaleVal = 1;
   mSmoothFactor = 0.1f;
   mMaterialGroup = 0;
   mSoftSelectRadius = 50.f;
   mAdjustHeightMouseScale = 0.1f;

   mSoftSelectDefaultFilter = StringTable->insert("1.000000 0.833333 0.666667 0.500000 0.333333 0.166667 0.000000");
   mSoftSelectFilter = mSoftSelectDefaultFilter;;
}

TerrainEditor::~TerrainEditor()
{
   // mouse
   delete mMouseBrush;

   // terrain actions
   U32 i;
   for(i = 0; i < mActions.size(); i++)
      delete mActions[i];

   // undo stuff
   clearUndo(mUndoList);
   clearUndo(mRedoList);
   delete mUndoSel;

   // base material infos
   for(i = 0; i < mBaseMaterialInfos.size(); i++)
      delete mBaseMaterialInfos[i];
}

//------------------------------------------------------------------------------

TerrainAction * TerrainEditor::lookupAction(const char * name)
{
   for(U32 i = 0; i < mActions.size(); i++)
      if(!dStricmp(mActions[i]->getName(), name))
         return(mActions[i]);
   return(0);
}

//------------------------------------------------------------------------------

bool TerrainEditor::onAdd()
{
   if(!Parent::onAdd())
      return(false);

   SimObject * obj = Sim::findObject("EditorArrowCursor");
   if(!obj)
   {
      Con::errorf(ConsoleLogEntry::General, "TerrainEditor::onAdd: failed to load cursor");
      return(false);
   }

   mDefaultCursor = dynamic_cast<GuiCursor*>(obj);

   return(true);
}

//------------------------------------------------------------------------------

void TerrainEditor::onDeleteNotify(SimObject * object)
{
   Parent::onDeleteNotify(object);

   if(mTerrainBlock != dynamic_cast<TerrainBlock*>(object))
      return;

   mTerrainBlock = 0;
}

void TerrainEditor::setCursor(GuiCursor * cursor)
{
   mCurrentCursor = cursor ? cursor : mDefaultCursor;
}


S32 TerrainEditor::getPaintMaterial()
{
   if(!mPaintMaterial)
      return -1;

   return getClientTerrain()->getMaterialAlphaIndex(mPaintMaterial);
}

//------------------------------------------------------------------------------

TerrainBlock * TerrainEditor::getClientTerrain()
{
   // do the client..

   NetConnection * toServer = NetConnection::getConnectionToServer();
   NetConnection * toClient = NetConnection::getLocalClientConnection();

   S32 index = toClient->getGhostIndex(mTerrainBlock);

   return(dynamic_cast<TerrainBlock*>(toServer->resolveGhost(index)));
}

//------------------------------------------------------------------------------

bool TerrainEditor::gridToWorld(const Point2I & gPos, Point3F & wPos)
{
   const MatrixF & mat = mTerrainBlock->getTransform();
   Point3F origin;
   mat.getColumn(3, &origin);

   wPos.x = gPos.x * (float)mTerrainBlock->getSquareSize() + origin.x;
   wPos.y = gPos.y * (float)mTerrainBlock->getSquareSize() + origin.y;
   wPos.z = getGridHeight(gPos);

   return(!(gPos.x >> TerrainBlock::BlockShift || gPos.y >> TerrainBlock::BlockShift));
}

bool TerrainEditor::worldToGrid(const Point3F & wPos, Point2I & gPos)
{
   const MatrixF & mat = mTerrainBlock->getTransform();
   Point3F origin;
   mat.getColumn(3, &origin);
   F32 squareSize = (F32) mTerrainBlock->getSquareSize();
   F32 halfSquareSize = squareSize / 2;

   float x = (wPos.x - origin.x + halfSquareSize) / squareSize;
   float y = (wPos.y - origin.y + halfSquareSize) / squareSize;

   gPos.x = (S32)mFloor(x);
   gPos.y = (S32)mFloor(y);

   return(!(gPos.x >> TerrainBlock::BlockShift || gPos.y >> TerrainBlock::BlockShift));
}

bool TerrainEditor::gridToCenter(const Point2I & gPos, Point2I & cPos)
{
   cPos.x = gPos.x & TerrainBlock::BlockMask;
   cPos.y = gPos.y & TerrainBlock::BlockMask;

   return(!(gPos.x >> TerrainBlock::BlockShift || gPos.y >> TerrainBlock::BlockShift));
}

//------------------------------------------------------------------------------

bool TerrainEditor::getGridInfo(const Point3F & wPos, GridInfo & info)
{
   Point2I gPos;
   worldToGrid(wPos, gPos);
   return getGridInfo(gPos, info);
}

bool TerrainEditor::getGridInfo(const Point2I & gPos, GridInfo & info)
{
   //
   info.mGridPos = gPos;
   info.mMaterial = getGridMaterial(gPos);
   info.mHeight = getGridHeight(gPos);
   info.mWeight = 1.f;
   info.mPrimarySelect = true;
   info.mMaterialChanged = false;

   Point2I cPos;
   gridToCenter(gPos, cPos);

   info.mMaterialGroup = mTerrainBlock->getBaseMaterial(cPos.x, cPos.y);
   mTerrainBlock->getMaterialAlpha(gPos, info.mMaterialAlpha);

   return(!(gPos.x >> TerrainBlock::BlockShift || gPos.y >> TerrainBlock::BlockShift));
}

void TerrainEditor::setGridInfo(const GridInfo & info)
{
   setGridHeight(info.mGridPos, info.mHeight);
   setGridMaterial(info.mGridPos, info.mMaterial);
   setGridMaterialGroup(info.mGridPos, info.mMaterialGroup);
   if(info.mMaterialChanged)
      mTerrainBlock->setMaterialAlpha(info.mGridPos, info.mMaterialAlpha);
}

//------------------------------------------------------------------------------

F32 TerrainEditor::getGridHeight(const Point2I & gPos)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);
   return(fixedToFloat(mTerrainBlock->getHeight(cPos.x, cPos.y)));
}

void TerrainEditor::gridUpdateComplete()
{
   if(mGridUpdateMin.x <= mGridUpdateMax.x)
      mTerrainBlock->updateGrid(mGridUpdateMin, mGridUpdateMax);
   mGridUpdateMin.set(256,256);
   mGridUpdateMax.set(0,0);
}

void TerrainEditor::materialUpdateComplete()
{
   if(mGridUpdateMin.x <= mGridUpdateMax.x)
   {
      TerrainBlock * clientTerrain = getClientTerrain();
      clientTerrain->updateGridMaterials(mGridUpdateMin, mGridUpdateMax);
      mTerrainBlock->updateGrid(mGridUpdateMin, mGridUpdateMax);
   }
   mGridUpdateMin.set(256,256);
   mGridUpdateMax.set(0,0);
}

void TerrainEditor::setGridHeight(const Point2I & gPos, const F32 height)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);
   if(cPos.x < mGridUpdateMin.x)
      mGridUpdateMin.x = cPos.x;
   if(cPos.y < mGridUpdateMin.y)
      mGridUpdateMin.y = cPos.y;
   if(cPos.x > mGridUpdateMax.x)
      mGridUpdateMax.x = cPos.x;
   if(cPos.y > mGridUpdateMax.y)
      mGridUpdateMax.y = cPos.y;

   mTerrainBlock->setHeight(cPos, height);
}

TerrainBlock::Material TerrainEditor::getGridMaterial(const Point2I & gPos)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);
   return(*mTerrainBlock->getMaterial(cPos.x, cPos.y));
}

void TerrainEditor::setGridMaterial(const Point2I & gPos, const TerrainBlock::Material & material)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);

   // check if empty has been altered...
   TerrainBlock::Material * mat = mTerrainBlock->getMaterial(cPos.x, cPos.y);

   if((mat->flags & TerrainBlock::Material::Empty) ^ (material.flags & TerrainBlock::Material::Empty))
      mRebuildEmpty = true;

   *mat = material;
}

U8 TerrainEditor::getGridMaterialGroup(const Point2I & gPos)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);

   return(mTerrainBlock->getBaseMaterial(cPos.x, cPos.y));
}

// basematerials are shared through a resource... so work on client object
// so wont need to load textures....

void TerrainEditor::setGridMaterialGroup(const Point2I & gPos, const U8 group)
{
   Point2I cPos;
   gridToCenter(gPos, cPos);

   TerrainBlock * clientTerrain = getClientTerrain();

   clientTerrain->setBaseMaterial(cPos.x, cPos.y, group);
}

//------------------------------------------------------------------------------

bool TerrainEditor::collide(const Gui3DMouseEvent & event, Point3F & pos)
{
   if(!mTerrainBlock)
      return(false);

   // call the terrain block's ray collision routine directly
   Point3F startPnt = event.pos;
   Point3F endPnt = event.pos + event.vec * 1000;
   Point3F tStartPnt, tEndPnt;

   mTerrainBlock->getTransform().mulP(startPnt, &tStartPnt);
   mTerrainBlock->getTransform().mulP(endPnt, &tEndPnt);

   RayInfo ri;
   if(mTerrainBlock->castRayI(tStartPnt, tEndPnt, &ri, true))
   {
      ri.point.interpolate(startPnt, endPnt, ri.t);
      pos = ri.point;
      return(true);
   }
   return(false);
}

//------------------------------------------------------------------------------

void TerrainEditor::updateGuiInfo()
{
   char buf[128];

   // mouse num grids
   // mouse avg height
   // selection num grids
   // selection avg height
   dSprintf(buf, sizeof(buf), "%d %g %d %g",
      mMouseBrush->size(), mMouseBrush->getAvgHeight(),
      mDefaultSel.size(), mDefaultSel.getAvgHeight());
   Con::executef(this, 2, "onGuiUpdate", buf);
}

//------------------------------------------------------------------------------

void TerrainEditor::renderScene(const RectI &)
{
   if(!mTerrainBlock)
      return;

   if(!mSelectionHidden)
      renderSelection(mDefaultSel, ColorF(1,0,0), ColorF(0,1,0), ColorF(0,0,1), ColorF(0,0,1), true, false);

   if(mRenderBrush && mMouseBrush->size())
      renderSelection(*mMouseBrush, ColorF(1,0,0), ColorF(0,1,0), ColorF(0,0,1), ColorF(0,0,1), false, true);

   if(mRenderBorder)
      renderBorder();
}

//------------------------------------------------------------------------------

struct TerrVertex
{
   Point3F point;
   ColorI color;
};

void TerrainEditor::renderSelection( const Selection & sel, const ColorF & inColorFull, const ColorF & inColorNone, const ColorF & outColorFull, const ColorF & outColorNone, bool renderFill, bool renderFrame )
{
   Vector<TerrVertex> vertexBuffer;
   ColorF color;
   ColorI iColor;

   vertexBuffer.setSize(sel.size() * 4);

   if(mRenderVertexSelection)
   {
      for(U32 i = 0; i < sel.size(); i++)
      {
         Point3F wPos;
         bool center = gridToWorld(sel[i].mGridPos, wPos);

         if(center)
         {
            if(sel[i].mWeight < 0.f || sel[i].mWeight > 1.f)
               color = inColorFull;
            else
               color.interpolate(inColorNone, inColorFull, sel[i].mWeight);
         }
         else
         {
            if(sel[i].mWeight < 0.f || sel[i].mWeight > 1.f)
               color = outColorFull;
            else
               color.interpolate(outColorFull, outColorNone, sel[i].mWeight);
         }
         //
         iColor = color;

         TerrVertex *verts = &(vertexBuffer[i * 4]);

         verts[0].point = wPos + Point3F(-1, -1, 0);
         verts[0].color = iColor;
         verts[1].point = wPos + Point3F( 1, -1, 0);
         verts[1].color = iColor;
         verts[2].point = wPos + Point3F( 1,  1, 0);
         verts[2].color = iColor;
         verts[3].point = wPos + Point3F(-1,  1, 0);
         verts[3].color = iColor;
      }
   }
   else
   {
      // walk the points in the selection
      for(U32 i = 0; i < sel.size(); i++)
      {
         Point2I gPos = sel[i].mGridPos;

         TerrVertex *verts = &(vertexBuffer[i * 4]);

         bool center = gridToWorld(gPos,              verts[0].point);
         gridToWorld(Point2I(gPos.x + 1, gPos.y),     verts[1].point);
         gridToWorld(Point2I(gPos.x + 1, gPos.y + 1), verts[2].point);
         gridToWorld(Point2I(gPos.x, gPos.y + 1),     verts[3].point);

         if(center)
         {
            if(sel[i].mWeight < 0.f || sel[i].mWeight > 1.f)
               color = inColorFull;
            else
               color.interpolate(inColorNone, inColorFull, sel[i].mWeight);
         }
         else
         {
            if(sel[i].mWeight < 0.f || sel[i].mWeight > 1.f)
               color = outColorFull;
            else
               color.interpolate(outColorFull, outColorNone, sel[i].mWeight);
         }

         iColor = color;

         verts[0].color = iColor;
         verts[1].color = iColor;
         verts[2].color = iColor;
         verts[3].color = iColor;
      }
   }

   //
   glEnableClientState(GL_VERTEX_ARRAY);
   glVertexPointer(3, GL_FLOAT, sizeof(TerrVertex), &(vertexBuffer[0]));
   glEnableClientState(GL_COLOR_ARRAY);
   glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(TerrVertex), &(vertexBuffer[0].color));

   if (dglDoesSupportCompiledVertexArray())
        glLockArraysEXT(0, vertexBuffer.size());

   glDisable(GL_CULL_FACE);
   glEnable(GL_BLEND);
   glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA);

   if(renderFill)
      glDrawArrays(GL_QUADS, 0, vertexBuffer.size());

   glDisable(GL_BLEND);

   if(renderFrame)
      for(U32 i = 0; i < sel.size(); i++)
         glDrawArrays(GL_LINE_LOOP, i * 4, 4);

   if (dglDoesSupportCompiledVertexArray())
      glUnlockArraysEXT();

   glDisableClientState(GL_VERTEX_ARRAY);
   glDisableClientState(GL_COLOR_ARRAY);
}

//------------------------------------------------------------------------------

void TerrainEditor::renderBorder()
{
   glDisable(GL_CULL_FACE);
   glEnable(GL_BLEND);
   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

   Point2I pos(0,0);
   Point2I dir[4] = {
      Point2I(1,0),
      Point2I(0,1),
      Point2I(-1,0),
      Point2I(0,-1)
   };

   //
   if(mBorderLineMode)
   {
      glColor4ub(mBorderFrameColor.red, mBorderFrameColor.green, mBorderFrameColor.blue, mBorderFrameColor.alpha);
      glBegin(GL_LINE_STRIP);
      for(U32 i = 0; i < 4; i++)
      {
         for(U32 j = 0; j < TerrainBlock::BlockSize; j++)
         {
            Point3F wPos;
            gridToWorld(pos, wPos);
            glVertex3f(wPos.x, wPos.y, wPos.z);
            pos += dir[i];
         }
      }

      Point3F wPos;
      gridToWorld(Point2I(0,0),  wPos);
      glVertex3f(wPos.x, wPos.y, wPos.z);
      glEnd();
   }
   else
   {
      glEnable(GL_DEPTH_TEST);
      GridSquare * gs = mTerrainBlock->findSquare(TerrainBlock::BlockShift, Point2I(0,0));
      F32 height = F32(gs->maxHeight) * 0.03125f + mBorderHeight;

      const MatrixF & mat = mTerrainBlock->getTransform();
      Point3F pos;
      mat.getColumn(3, &pos);

      Point2F min(pos.x, pos.y);
      Point2F max(pos.x + TerrainBlock::BlockSize * mTerrainBlock->getSquareSize(),
                  pos.y + TerrainBlock::BlockSize * mTerrainBlock->getSquareSize());

      ColorI & a = mBorderFillColor;
      ColorI & b = mBorderFrameColor;

      for(U32 i = 0; i < 2; i++)
      {
         //
         if(i){glColor4ub(a.red,a.green,a.blue,a.alpha);glBegin(GL_QUADS);} else {glColor4f(b.red,b.green,b.blue,b.alpha); glBegin(GL_LINE_LOOP);}
         glVertex3f(min.x, min.y, 0);
         glVertex3f(max.x, min.y, 0);
         glVertex3f(max.x, min.y, height);
         glVertex3f(min.x, min.y, height);
         glEnd();

         //
         if(i){glColor4ub(a.red,a.green,a.blue,a.alpha);glBegin(GL_QUADS);} else {glColor4f(b.red,b.green,b.blue,b.alpha); glBegin(GL_LINE_LOOP);}
         glVertex3f(min.x, max.y, 0);
         glVertex3f(max.x, max.y, 0);
         glVertex3f(max.x, max.y, height);
         glVertex3f(min.x, max.y, height);
         glEnd();

         //
         if(i){glColor4ub(a.red,a.green,a.blue,a.alpha);glBegin(GL_QUADS);} else {glColor4f(b.red,b.green,b.blue,b.alpha); glBegin(GL_LINE_LOOP);}
         glVertex3f(min.x, min.y, 0);
         glVertex3f(min.x, max.y, 0);
         glVertex3f(min.x, max.y, height);
         glVertex3f(min.x, min.y, height);
         glEnd();

         //
         if(i){glColor4ub(a.red,a.green,a.blue,a.alpha);glBegin(GL_QUADS);} else {glColor4f(b.red,b.green,b.blue,b.alpha); glBegin(GL_LINE_LOOP);}
         glVertex3f(max.x, min.y, 0);
         glVertex3f(max.x, max.y, 0);
         glVertex3f(max.x, max.y, height);
         glVertex3f(max.x, min.y, height);
         glEnd();
      }
      glDisable(GL_DEPTH_TEST);
   }

   glDisable(GL_BLEND);
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------

void TerrainEditor::addUndo(Vector<Selection *> & list, Selection * sel)
{
   AssertFatal(sel!=NULL, "TerrainEditor::addUndo - invalid selection");
   list.push_front(sel);
   if(list.size() == mUndoLimit)
   {
      Selection * undo = list[list.size()-1];
      delete undo;
      list.pop_back();
   }
   setDirty();
}

void TerrainEditor::clearUndo(Vector<Selection *> & list)
{
   for(U32 i = 0; i < list.size(); i++)
      delete list[i];
   list.clear();
}

bool TerrainEditor::processUndo(Vector<Selection *> & src, Vector<Selection *> & dest)
{
   if(!src.size())
      return(false);

   Selection * task = src.front();
   src.pop_front();

   Selection * save = new Selection;
   for(U32 i = 0; i < task->size(); i++)
   {
      GridInfo info;
      getGridInfo((*task)[i].mGridPos, info);
      save->add(info);
      setGridInfo((*task)[i]);
   }
   gridUpdateComplete();

   delete task;
   addUndo(dest, save);

   rebuild();

   return(true);
}

//------------------------------------------------------------------------------
//
void TerrainEditor::rebuild()
{
   // empty
   if(mRebuildEmpty)
   {
      mTerrainBlock->rebuildEmptyFlags();
      mTerrainBlock->packEmptySquares();
      mRebuildEmpty = false;
   }
}

//------------------------------------------------------------------------------

void TerrainEditor::on3DMouseUp(const Gui3DMouseEvent & event)
{
   if(!mTerrainBlock)
      return;

   if(isMouseLocked())
   {
      mouseUnlock();
      mMouseDownSeq++;
      mCurrentAction->process(mMouseBrush, event, false, TerrainAction::End);
      setCursor(0);

      if(mUndoSel->size())
      {
         addUndo(mUndoList, mUndoSel);
         clearUndo(mRedoList);
      }
      else
         delete mUndoSel;

      mUndoSel = 0;
      mInAction = false;

      rebuild();
   }
}

class TerrainProcessActionEvent : public SimEvent
{
   U32 mSequence;
public:
   TerrainProcessActionEvent(U32 seq)
   {
      mSequence = seq;
   }
   void process(SimObject *object)
   {
      ((TerrainEditor *) object)->processActionTick(mSequence);
   }
};

void TerrainEditor::processActionTick(U32 sequence)
{
   if(mMouseDownSeq == sequence)
   {
      Sim::postEvent(this, new TerrainProcessActionEvent(mMouseDownSeq), Sim::getCurrentTime() + 30);
      mCurrentAction->process(mMouseBrush, mLastEvent, false, TerrainAction::Update);
   }
}

void TerrainEditor::on3DMouseDown(const Gui3DMouseEvent & event)
{
   if(!mTerrainBlock)
      return;

   mSelectionLocked = false;

   mouseLock();
   mMouseDownSeq++;
   mUndoSel = new Selection;
   mCurrentAction->process(mMouseBrush, event, true, TerrainAction::Begin);
   // process on ticks - every 30th of a second.
   Sim::postEvent(this, new TerrainProcessActionEvent(mMouseDownSeq), Sim::getCurrentTime() + 30);
}

void TerrainEditor::on3DMouseMove(const Gui3DMouseEvent & event)
{
   if(!mTerrainBlock)
      return;

   Point3F pos;
   if(!collide(event, pos))
   {
      mMouseBrush->reset();
      mCursorVisible = true;
   }
   else
   {
      //
      if(mRenderBrush)
         mCursorVisible = false;
      mMousePos = pos;

      mMouseBrush->setPosition(mMousePos);
   }
}

void TerrainEditor::on3DMouseDragged(const Gui3DMouseEvent & event)
{
   if(!mTerrainBlock)
      return;

   if(!isMouseLocked())
      return;

   Point3F pos;
   if(!mSelectionLocked)
   {
      if(!collide(event, pos))
      {
         mMouseBrush->reset();
         return;
      }
   }

   // check if the mouse has actually moved in grid space
   bool selChanged = false;
   if(!mSelectionLocked)
   {
      Point2I gMouse;
      Point2I gLastMouse;
      worldToGrid(pos, gMouse);
      worldToGrid(mMousePos, gLastMouse);

      //
      mMousePos = pos;
      mMouseBrush->setPosition(mMousePos);

      selChanged = gMouse != gLastMouse;
   }
   if(selChanged)
      mCurrentAction->process(mMouseBrush, event, true, TerrainAction::Update);
}

void TerrainEditor::getCursor(GuiCursor *&cursor, bool &visible, const GuiEvent &event)
{
   event;
   cursor = mCurrentCursor;
   visible = mCursorVisible;
}

//------------------------------------------------------------------------------
// any console function which depends on a terrainBlock attached to the editor
// should call this
bool checkTerrainBlock(TerrainEditor * object, const char * funcName)
{
   if(!object->terrainBlockValid())
   {
      Con::errorf(ConsoleLogEntry::Script, "TerrainEditor::%s: not attached to a terrain block!", funcName);
      return(false);
   }
   return(true);
}

//------------------------------------------------------------------------------
static void findObjectsCallback(SceneObject* obj, void *val)
{
   Vector<SceneObject*> * list = (Vector<SceneObject*>*)val;
   list->push_back(obj);
}

// XA: Methods added for interfacing with the consoleMethods.

void TerrainEditor::attachTerrain(TerrainBlock *terrBlock)
{
	mTerrainBlock = terrBlock;	
}

void TerrainEditor::setBrushType(const char* type)
{
   if(!dStricmp(type, "box"))
   {
      delete mMouseBrush;
      mMouseBrush = new BoxBrush(this);
   }
   else if(!dStricmp(type, "ellipse"))
   {
      delete mMouseBrush;
      mMouseBrush = new EllipseBrush(this);
   }
   else if(!dStricmp(type, "selection"))
   {
      delete mMouseBrush;
      mMouseBrush = new SelectionBrush(this);
   }
   else {}
}	

void TerrainEditor::setBrushSize(S32 w, S32 h)
{
	mBrushSize.set(w, h);
	mMouseBrush->setSize(mBrushSize);	
}

const char* TerrainEditor::getBrushPos()
{
   AssertFatal(mMouseBrush!=NULL, "TerrainEditor::getBrushPos: no mouse brush!");

   Point2I pos = mMouseBrush->getPosition();
   char * ret = Con::getReturnBuffer(32);
   dSprintf(ret, sizeof(ret), "%d %d", pos.x, pos.y);
   return(ret);	
}

void TerrainEditor::setBrushPos(Point2I pos)
{
   AssertFatal(mMouseBrush!=NULL, "TerrainEditor::setBrushPos: no mouse brush!");
   mMouseBrush->setPosition(pos);	
}

void TerrainEditor::setAction(const char* action)
{
   for(U32 i = 0; i < mActions.size(); i++)
   {
      if(!dStricmp(mActions[i]->getName(), action))
      {
         mCurrentAction = mActions[i];

         //
         mRenderBrush = mCurrentAction->useMouseBrush();
         return;
      }
   }	
}

const char* TerrainEditor::getActionName(U32 index)
{
   if(index >= mActions.size())
      return("");
   return(mActions[index]->getName());
}

const char* TerrainEditor::getCurrentAction()
{
   return(mCurrentAction->getName());	
}

S32 TerrainEditor::getNumActions()
{
   return(mActions.size());
}

void TerrainEditor::resetSelWeights(bool clear)
{
   //
   if(!clear)
   {
      for(U32 i = 0; i < mDefaultSel.size(); i++)
      {
         mDefaultSel[i].mPrimarySelect = false;
         mDefaultSel[i].mWeight = 1.f;
      }
      return;
   }

   Selection sel;

   U32 i;
   for(i = 0; i < mDefaultSel.size(); i++)
   {
      if(mDefaultSel[i].mPrimarySelect)
      {
         mDefaultSel[i].mWeight = 1.f;
         sel.add(mDefaultSel[i]);
      }
   }

   mDefaultSel.reset();

   for(i = 0; i < sel.size(); i++)
      mDefaultSel.add(sel[i]);
}

void TerrainEditor::undo()
{
   if(!checkTerrainBlock(this, "undoAction"))
      return;

   processUndo(mUndoList, mRedoList);
}

void TerrainEditor::redo()
{
   if(!checkTerrainBlock(this, "redoAction"))
      return;

   processUndo(mRedoList, mUndoList);	
}

void TerrainEditor::clearSelection()
{
	mDefaultSel.reset();
}

void TerrainEditor::processAction(const char* sAction)
{
   if(!checkTerrainBlock(this, "processAction"))
      return;

   TerrainAction * action = mCurrentAction;
   if(sAction != "")
   {
      action = lookupAction(sAction);

      if(!action)
      {
         Con::errorf(ConsoleLogEntry::General, "TerrainEditor::cProcessAction: invalid action name '%s'.", sAction);
         return;
      }
   }

   if(!getCurrentSel()->size() && !mProcessUsesBrush)
      return;

   mUndoSel = new Selection;

   Gui3DMouseEvent event;
   if(mProcessUsesBrush)
      action->process(mMouseBrush, event, true, TerrainAction::Process);
   else
      action->process(getCurrentSel(), event, true, TerrainAction::Process);

   rebuild();

   // check if should delete the undo
   if(mUndoSel->size())
   {
      addUndo(mUndoList, mUndoSel);
      clearUndo(mRedoList);
   }
   else
      delete mUndoSel;

   mUndoSel = 0;	
}

void TerrainEditor::buildMaterialMap()
{
   if(!checkTerrainBlock(this, "buildMaterialMap"))
      return;
   mTerrainBlock->buildMaterialMap();
}

S32 TerrainEditor::getNumTextures()
{
   if(!checkTerrainBlock(this, "getNumTextures"))
      return(0);

   // walk all the possible material lists and count them..
   U32 count = 0;
   for(U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
      if(mTerrainBlock->mMaterialFileName[i] &&
         *mTerrainBlock->mMaterialFileName[i])
         count++;
   return count;	
}

const char* TerrainEditor::getTextureName(S32 group)
{
   if(!checkTerrainBlock(this, "getTextureName"))
      return("");

   // textures only exist on the client..
   NetConnection * toServer = NetConnection::getConnectionToServer();
   NetConnection * toClient = NetConnection::getLocalClientConnection();

   S32 index = toClient->getGhostIndex(mTerrainBlock);

   TerrainBlock * terrBlock = dynamic_cast<TerrainBlock*>(toServer->resolveGhost(index));
   if(!terrBlock)
      return("");

   // possibly in range?
   if(group < 0 || group >= TerrainBlock::MaterialGroups)
      return("");

   // now find the i-th group
   U32 count = 0;
   bool found = false;
   for(U32 i = 0; !found && (i < TerrainBlock::MaterialGroups); i++)
   {
      // count it
      if(terrBlock->mMaterialFileName[i] &&
         *terrBlock->mMaterialFileName[i])
         count++;

      if((group + 1) == count)
      {
         group = i;
         found = true;
      }
   }

   if(!found)
      return("");
   return terrBlock->mMaterialFileName[group];	
}

void TerrainEditor::markEmptySquares()
{
   if(!checkTerrainBlock(this, "markEmptySquares"))
      return;

   // build a list of all the marked interiors
   Vector<InteriorInstance*> interiors;
   U32 mask = InteriorObjectType;
   gServerContainer.findObjects(mask, findObjectsCallback, &interiors);

   // walk the terrain and empty any grid which clips to an interior
   for(U32 x = 0; x < TerrainBlock::BlockSize; x++)
      for(U32 y = 0; y < TerrainBlock::BlockSize; y++)
      {
         TerrainBlock::Material * material = mTerrainBlock->getMaterial(x,y);
         material->flags |= ~(TerrainBlock::Material::Empty);

         Point3F a, b;
         gridToWorld(Point2I(x,y), a);
         gridToWorld(Point2I(x+1,y+1), b);

         Box3F box;
         box.min = a;
         box.max = b;

         box.min.setMin(b);
         box.max.setMax(a);

         const MatrixF & terrOMat = mTerrainBlock->getTransform();
         const MatrixF & terrWMat = mTerrainBlock->getWorldTransform();

         terrWMat.mulP(box.min);
         terrWMat.mulP(box.max);

         for(U32 i = 0; i < interiors.size(); i++)
         {
            MatrixF mat = interiors[i]->getWorldTransform();
            mat.scale(interiors[i]->getScale());
            mat.mul(terrOMat);

            U32 waterMark = FrameAllocator::getWaterMark();
            U16* zoneVector = (U16*)FrameAllocator::alloc(interiors[i]->getDetailLevel(0)->getNumZones());
            U32 numZones = 0;
            interiors[i]->getDetailLevel(0)->scanZones(box, mat,
                                                       zoneVector, &numZones);
            if (numZones != 0)
            {
               Con::printf("%d %d", x, y);
               material->flags |= TerrainBlock::Material::Empty;
               FrameAllocator::setWaterMark(waterMark);
               break;
            }
            FrameAllocator::setWaterMark(waterMark);
         }
      }

   // rebuild stuff..
   mTerrainBlock->buildGridMap();
   mTerrainBlock->rebuildEmptyFlags();
   mTerrainBlock->packEmptySquares();	
}

void TerrainEditor::clearModifiedFlags()
{
   if(!checkTerrainBlock(this, "clearModifiedFlags"))
      return;

   //
   for(U32 i = 0; i < (TerrainBlock::BlockSize * TerrainBlock::BlockSize); i++)
      mTerrainBlock->materialMap[i].flags &= ~TerrainBlock::Material::Modified;	
}

void TerrainEditor::mirrorTerrain(S32 mirrorIndex)
{
   if(!checkTerrainBlock(this, "mirrorTerrain"))
      return;

   TerrainBlock * terrain = mTerrainBlock;
   setDirty();

   //
   enum {
      top = BIT(0),
      bottom = BIT(1),
      left = BIT(2),
      right = BIT(3)
   };

   U32 sides[8] =
   {
      bottom,
      bottom | left,
      left,
      left | top,
      top,
      top | right,
      right,
      bottom | right
   };

   U32 n = TerrainBlock::BlockSize;
   U32 side = sides[mirrorIndex % 8];
   bool diag = mirrorIndex & 0x01;

   Point2I src((side & right) ? (n - 1) : 0, (side & bottom) ? (n - 1) : 0);
   Point2I dest((side & left) ? (n - 1) : 0, (side & top) ? (n - 1) : 0);
   Point2I origSrc(src);
   Point2I origDest(dest);

   // determine the run length
   U32 minStride = ((side & top) || (side & bottom)) ? n : n / 2;
   U32 majStride = ((side & left) || (side & right)) ? n : n / 2;

   Point2I srcStep((side & right) ? -1 : 1, (side & bottom) ? -1 : 1);
   Point2I destStep((side & left) ? -1 : 1, (side & top) ? -1 : 1);

   //
   U16 * heights = terrain->getHeightAddress(0,0);
   U8 * baseMaterials = terrain->getBaseMaterialAddress(0,0);
   TerrainBlock::Material * materials = terrain->getMaterial(0,0);

   // create an undo selection
   Selection * undo = new Selection;

   // walk through all the positions
   for(U32 i = 0; i < majStride; i++)
   {
      for(U32 j = 0; j < minStride; j++)
      {
         // skip the same position
         if(src != dest)
         {
            U32 si = src.x + (src.y << TerrainBlock::BlockShift);
            U32 di = dest.x + (dest.y << TerrainBlock::BlockShift);

            // add to undo selection
            GridInfo info;
            getGridInfo(dest, info);
            undo->add(info);

            //... copy info... (height, basematerial, material)
            heights[di] = heights[si];
            baseMaterials[di] = baseMaterials[si];
            materials[di] = materials[si];
         }

         // get to the new position
         src.x += srcStep.x;
         diag ? (dest.y += destStep.y) : (dest.x += destStep.x);
      }

      // get the next position for a run
      src.y += srcStep.y;
      diag ? (dest.x += destStep.x) : (dest.y += destStep.y);

      // reset the minor run
      src.x = origSrc.x;
      diag ? (dest.y = origDest.y) : (dest.x = origDest.x);

      // shorten the run length for diag runs
      if(diag)
         minStride--;
   }

   // rebuild stuff..
   terrain->buildGridMap();
   terrain->rebuildEmptyFlags();
   terrain->packEmptySquares();

   // add undo selection to undo list and clear redo
   addUndo(mUndoList, undo);
   clearUndo(mRedoList);
}

void TerrainEditor::popBaseMaterialInfo()
{
   if(!checkTerrainBlock(this, "popMaterialInfo"))
      return;

   if(!mBaseMaterialInfos.size())
      return;

   TerrainBlock * terrain = mTerrainBlock;

   BaseMaterialInfo * info = mBaseMaterialInfos.front();

   // names
   for(U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
      terrain->mMaterialFileName[i] = info->mMaterialNames[i];

   // base materials
   dMemcpy(terrain->mBaseMaterialMap, info->mBaseMaterials,
      TerrainBlock::BlockSize * TerrainBlock::BlockSize);

   // kill it..
   delete info;
   mBaseMaterialInfos.pop_front();

   // rebuild
   terrain->refreshMaterialLists();
   terrain->buildGridMap();	
}

void TerrainEditor::pushBaseMaterialInfo()
{
   if(!checkTerrainBlock(this, "pushMaterialInfo"))
      return;

   TerrainBlock * terrain = mTerrainBlock;

   BaseMaterialInfo * info = new BaseMaterialInfo;

   // copy the material list names
   for(U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
      info->mMaterialNames[i] = terrain->mMaterialFileName[i];

   // copy the base materials
   dMemcpy(info->mBaseMaterials, terrain->mBaseMaterialMap,
      TerrainBlock::BlockSize * TerrainBlock::BlockSize);

   mBaseMaterialInfos.push_front(info);	
}

void TerrainEditor::setLoneBaseMaterial(const char* materialListBaseName)
{
   if(!checkTerrainBlock(this, "setLoneBaseMaterial"))
      return;

   TerrainBlock * terrain = mTerrainBlock;

   // force the material group
   terrain->mMaterialFileName[0] = StringTable->insert(materialListBaseName);
   dMemset(terrain->getBaseMaterialAddress(0,0),
      TerrainBlock::BlockSize * TerrainBlock::BlockSize, 0);

   terrain->refreshMaterialLists();
   terrain->buildGridMap();	
}

//------------------------------------------------------------------------------

ConsoleMethod( TerrainEditor, attachTerrain, void, 2, 3, "(TerrainBlock terrain)")
{
   TerrainBlock * terrBlock = 0;

   SimSet * missionGroup = dynamic_cast<SimSet*>(Sim::findObject("MissionGroup"));
   if(!missionGroup)
   {
      Con::errorf(ConsoleLogEntry::Script, "TerrainEditor::attach: no mission group found");
      return;
   }

   // attach to first found terrainBlock
   if(argc == 2)
   {
      for(SimSetIterator itr(missionGroup); *itr; ++itr)
      {
         terrBlock = dynamic_cast<TerrainBlock*>(*itr);
         if(terrBlock)
            break;
      }

      if(!terrBlock)
         Con::errorf(ConsoleLogEntry::Script, "TerrainEditor::attach: no TerrainBlock objects found!");
   }
   else  // attach to named object
   {
      terrBlock = dynamic_cast<TerrainBlock*>(Sim::findObject(argv[2]));

      if(!terrBlock)
         Con::errorf(ConsoleLogEntry::Script, "TerrainEditor::attach: failed to attach to object '%s'", argv[2]);
   }

   if(terrBlock && !terrBlock->isServerObject())
   {
      Con::errorf(ConsoleLogEntry::Script, "TerrainEditor::attach: cannot attach to client TerrainBlock");
      terrBlock = 0;
   }

	object->attachTerrain(terrBlock);
}

ConsoleMethod( TerrainEditor, setBrushType, void, 3, 3, "(string type)"
              "One of box, ellipse, selection.")
{
	object->setBrushType(argv[2]);
}

ConsoleMethod( TerrainEditor, setBrushSize, void, 4, 4, "(int w, int h)")
{
   S32 w = dAtoi(argv[2]);
   S32 h = dAtoi(argv[3]);

   //
   if(w < 1 || w > Brush::MaxBrushDim || h < 1 || h > Brush::MaxBrushDim)
   {
      Con::errorf(ConsoleLogEntry::General, "TerrainEditor::cSetBrushSize: invalid brush dimension. [1-%d].", Brush::MaxBrushDim);
      return;
   }

	object->setBrushSize(w, h);
}

ConsoleMethod( TerrainEditor, getBrushPos, const char*, 2, 2, "Returns a Point2I.")
{
	return object->getBrushPos();
}

ConsoleMethod( TerrainEditor, setBrushPos, void, 3, 4, "(int x, int y)")
{
   //
   Point2I pos;
   if(argc == 3)
      dSscanf(argv[2], "%d %d", &pos.x, &pos.y);
   else
   {
      pos.x = dAtoi(argv[2]);
      pos.y = dAtoi(argv[3]);
   }

   object->setBrushPos(pos);
}

ConsoleMethod( TerrainEditor, setAction, void, 3, 3, "(string action_name)")
{
	object->setAction(argv[2]);
}

ConsoleMethod( TerrainEditor, getActionName, const char*, 3, 3, "(int num)")
{
	return (object->getActionName(dAtoi(argv[2])));
}

ConsoleMethod( TerrainEditor, getNumActions, S32, 2, 2, "")
{
	return(object->getNumActions());
}

ConsoleMethod( TerrainEditor, getCurrentAction, const char*, 2, 2, "")
{
	return object->getCurrentAction();
}

ConsoleMethod( TerrainEditor, resetSelWeights, void, 3, 3, "(bool clear)")
{
	object->resetSelWeights(dAtob(argv[2]));
}

ConsoleMethod( TerrainEditor, undo, void, 2, 2, "")
{
	object->undo();
}

ConsoleMethod( TerrainEditor, redo, void, 2, 2, "")
{
	object->redo();
}

ConsoleMethod( TerrainEditor, clearSelection, void, 2, 2, "")
{
   object->clearSelection();
}

ConsoleMethod( TerrainEditor, processAction, void, 2, 3, "(string action=NULL)")
{
	if(argc == 3)
		object->processAction(argv[2]);
	else object->processAction("");
}

ConsoleMethod( TerrainEditor, buildMaterialMap, void, 2, 2, "")
{
	object->buildMaterialMap();
}

ConsoleMethod( TerrainEditor, getNumTextures, S32, 2, 2, "")
{
	return object->getNumTextures();
}

ConsoleMethod( TerrainEditor, getTextureName, const char*, 3, 3, "(int index)")
{
	return object->getTextureName(dAtoi(argv[2]));	
}

ConsoleMethod( TerrainEditor, markEmptySquares, void, 2, 2, "")
{
	object->markEmptySquares();
}

ConsoleMethod( TerrainEditor, clearModifiedFlags, void, 2, 2, "")
{
	object->clearModifiedFlags();
}

ConsoleMethod( TerrainEditor, mirrorTerrain, void, 3, 3, "")
{
	object->mirrorTerrain(dAtoi(argv[2]));
}

ConsoleMethod(TerrainEditor, pushBaseMaterialInfo, void, 2, 2, "")
{
	object->pushBaseMaterialInfo();
}

ConsoleMethod( TerrainEditor, popBaseMaterialInfo, void, 2, 2, "")
{
	object->popBaseMaterialInfo();
}

ConsoleMethod( TerrainEditor, setLoneBaseMaterial, void, 3, 3, "(string materialListBaseName)")
{
	object->setLoneBaseMaterial(argv[2]);
}

ConsoleMethod(TerrainEditor, setTerraformOverlay, void, 3, 3, "(bool overlayEnable) - sets the terraformer current heightmap to draw as an overlay over the current terrain.")
{
   // XA: This one needs to be implemented :)
}

ConsoleMethod(TerrainEditor, setTerrainMaterials, void, 3, 3, "(string matList) sets the list of current terrain materials.")
{
   TerrainEditor *tEditor = (TerrainEditor *) object;
   TerrainBlock *terr = tEditor->getTerrainBlock();
   if(!terr)
      return;
   Resource<TerrainFile> file = terr->getFile();
   const char *fileList = argv[2];
   for(U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
   {
      U32 len;
      const char *spos = dStrchr(fileList, '\n');
      if(!spos)
         len = dStrlen(fileList);
      else
         len = spos - fileList;

      if(len)
         file->mMaterialFileName[i] = StringTable->insertn(fileList, len, true);
      else
         file->mMaterialFileName[i] = 0;
      fileList += len;
      if(*fileList)
         fileList++;
   }
   tEditor->getClientTerrain()->buildMaterialMap();
}

ConsoleMethod(TerrainEditor, getTerrainMaterials, const char *, 2, 2, "() gets the list of current terrain materials.")
{
   char *ret = Con::getReturnBuffer(4096);
   TerrainEditor *tEditor = (TerrainEditor *) object;
   TerrainBlock *terr = tEditor->getTerrainBlock();
   if(!terr)
      return "";
   ret[0] = 0;
   Resource<TerrainFile> file = terr->getFile();
   for(U32 i = 0; i < TerrainBlock::MaterialGroups; i++)
   {
      if(file->mMaterialFileName[i])
         dStrcat(ret, file->mMaterialFileName[i]);
      dStrcat(ret, "\n");
   }
   return ret;
}

//------------------------------------------------------------------------------

void TerrainEditor::initPersistFields()
{
   Parent::initPersistFields();
   addGroup("Misc");	
   addField("isDirty", TypeBool, Offset(mIsDirty, TerrainEditor));
   addField("isMissionDirty", TypeBool, Offset(mIsMissionDirty, TerrainEditor));
   addField("renderBorder", TypeBool, Offset(mRenderBorder, TerrainEditor));
   addField("borderHeight", TypeF32, Offset(mBorderHeight, TerrainEditor));
   addField("borderFillColor", TypeColorI, Offset(mBorderFillColor, TerrainEditor));
   addField("borderFrameColor", TypeColorI, Offset(mBorderFrameColor, TerrainEditor));
   addField("borderLineMode", TypeBool, Offset(mBorderLineMode, TerrainEditor));
   addField("selectionHidden", TypeBool, Offset(mSelectionHidden, TerrainEditor));
   addField("enableSoftBrushes", TypeBool, Offset(mEnableSoftBrushes, TerrainEditor));
   addField("renderVertexSelection", TypeBool, Offset(mRenderVertexSelection, TerrainEditor));
   addField("processUsesBrush", TypeBool, Offset(mProcessUsesBrush, TerrainEditor));

   // action values...
   addField("adjustHeightVal", TypeF32, Offset(mAdjustHeightVal, TerrainEditor));
   addField("setHeightVal", TypeF32, Offset(mSetHeightVal, TerrainEditor));
   addField("scaleVal", TypeF32, Offset(mScaleVal, TerrainEditor));
   addField("smoothFactor", TypeF32, Offset(mSmoothFactor, TerrainEditor));
   addField("materialGroup", TypeS32, Offset(mMaterialGroup, TerrainEditor));
   addField("softSelectRadius", TypeF32, Offset(mSoftSelectRadius, TerrainEditor));
   addField("softSelectFilter", TypeString, Offset(mSoftSelectFilter, TerrainEditor));
   addField("softSelectDefaultFilter", TypeString, Offset(mSoftSelectDefaultFilter, TerrainEditor));
   addField("adjustHeightMouseScale", TypeF32, Offset(mAdjustHeightMouseScale, TerrainEditor));
   addField("paintMaterial", TypeCaseString, Offset(mPaintMaterial, TerrainEditor));
   endGroup("Misc");	
}