copy paste support for terrains

Engine/source/gui/worldEditor/terrainActions.cpp

@@ -26,6 +26,7 @@
 
 #include "gui/core/guiCanvas.h"
 
+TerrainScratchPad gTerrainScratchPad;
 //------------------------------------------------------------------------------
 bool TerrainAction::isValid(GridInfo tile)
 {
@@ -857,6 +858,34 @@ void HydraulicErosionAction::process(Selection* sel, const Gui3DMouseEvent&, boo
 
 }
 
+void copyAction::process(Selection* sel, const Gui3DMouseEvent&, bool selChanged, Type type)
+{
+   gTerrainScratchPad.clear();
+   for (U32 i=0;i<sel->size();i++)
+   {
+      if (isValid((*sel)[i]))
+         gTerrainScratchPad.addTile((*sel)[i].mHeight, (*sel)[i].mMaterial);
+      else
+         gTerrainScratchPad.addTile(0, 0);
+   }
+}
+
+void pasteAction::process(Selection* sel, const Gui3DMouseEvent&, bool selChanged, Type type)
+{
+   for (U32 i = 0; i < sel->size(); i++)
+   {
+      if (isValid((*sel)[i]))
+      {
+         mTerrainEditor->getUndoSel()->add((*sel)[i]);
+         (*sel)[i].mHeight = gTerrainScratchPad[i]->mHeight;
+         (*sel)[i].mMaterial = gTerrainScratchPad[i]->mMaterial;
+         mTerrainEditor->setGridInfo((*sel)[i]);
+      }
+   }
+   mTerrainEditor->scheduleGridUpdate();
+   mTerrainEditor->scheduleMaterialUpdate();
+}
+
 IMPLEMENT_CONOBJECT( TerrainSmoothAction );
 
 ConsoleDocClass( TerrainSmoothAction,

Engine/source/gui/worldEditor/terrainActions.h

@@ -351,6 +351,47 @@ public:
    F32 mScale;
 };
 
+class TerrainScratchPad
+{
+public:
+   TerrainScratchPad() {};
+   ~TerrainScratchPad() { mContents.clear(); };
+   void clear() { for (U32 i = 0; i < mContents.size(); i++) delete(mContents[i]); mContents.clear(); };
+   class gridStub
+   {
+   public:
+      gridStub(F32 height, U8 material) : mHeight(height), mMaterial(material) {};
+      F32 mHeight;
+      U8 mMaterial;
+   };
+   void addTile(F32 height, U8 material) { mContents.push_back(new gridStub(height, material)); };
+   gridStub* operator [](U32 index) { return mContents[index]; };
+private:
+   Vector<gridStub*> mContents;
+};
+
+class copyAction : public TerrainAction
+{
+public:
+   copyAction(TerrainEditor* editor)
+      : TerrainAction(editor)
+   {
+   }
+   StringTableEntry getName() { return("copy"); }
+   void process(Selection* sel, const Gui3DMouseEvent& event, bool selChanged, Type type);
+};
+
+class pasteAction : public TerrainAction
+{
+public:
+   pasteAction(TerrainEditor* editor)
+      : TerrainAction(editor)
+   {
+   }
+   StringTableEntry getName() { return("paste"); }
+   void process(Selection* sel, const Gui3DMouseEvent& event, bool selChanged, Type type);
+};
+
 
 /// An undo action used to perform terrain wide smoothing.
 class TerrainSmoothAction : public UndoAction

Engine/source/gui/worldEditor/terrainEditor.cpp

@@ -714,6 +714,8 @@ TerrainEditor::TerrainEditor() :
    mActions.push_back(new PaintNoiseAction(this));
    mActions.push_back(new ThermalErosionAction(this));
    mActions.push_back(new HydraulicErosionAction(this));
+   mActions.push_back(new copyAction(this));
+   mActions.push_back(new pasteAction(this));
 
 
    // set the default action

Templates/BaseGame/game/tools/worldEditor/scripts/EditorGui.ed.tscript

@@ -1256,7 +1256,9 @@ function EditorGui::SetTerrainPalletBar()
    EWToolsPaletteWindow.addButton("FlattenHeight", "ToolsModule:flattenHeight_n_image", "ETerrainEditor.switchAction( flattenHeight );", "", "Flatten Height", "9");
    EWToolsPaletteWindow.addButton("SetHeight", "ToolsModule:setHeight_n_image", "ETerrainEditor.switchAction( setHeight );", "", "Set Height", "0");    
    EWToolsPaletteWindow.addButton("SetEmpty", "ToolsModule:setEmpty_n_image", "ETerrainEditor.switchAction( setEmpty );", "", "Set Empty", "0");     
-   EWToolsPaletteWindow.addButton("ClearEmpty", "ToolsModule:clearEmpty_n_image", "ETerrainEditor.switchAction( clearEmpty );", "", "Clear Empty", "shift 0");  
+   EWToolsPaletteWindow.addButton("ClearEmpty", "ToolsModule:clearEmpty_n_image", "ETerrainEditor.switchAction( clearEmpty );", "", "Clear Empty", "shift 0"); 
+   EWToolsPaletteWindow.addButton("Copy", "ToolsModule:setHeight_n_image", "ETerrainEditor.switchAction( copy );", "", "copy", "ctrl C");
+   EWToolsPaletteWindow.addButton("Paste", "ToolsModule:setHeight_n_image", "ETerrainEditor.switchAction( paste );", "", "paste", "ctrl v"); 
    EWToolsPaletteWindow.refresh();
 }