Enabling Snap To Grid in Mission Editor

Turns out there is a snap to grid function in the mission editor - it is just not exposed through the GUI.

Here is how you can add a menu to turn it on:

EditorGui.cs:

In function function EditorGui::init(%this):

Add after the line " EditorMenuBar.addMenuItem("World", "Drop to Ground", 6, "", 1);"

EditorMenuBar.addMenuItem("World", "-", 0);
   EditorMenuBar.addMenuItem("World", "Snap On", 0, "", 2);
   EditorMenuBar.addMenuItem("World", "Snap Off", 1, "", 2);

Add after the line " EditorMenuBar.onWorldMenuItemSelect(0, "Drop at Screen Center");"

if ($EWorldEditor.snapToGrid)
	   EditorMenuBar.onWorldMenuItemSelect(0, "Snap On");
   else
	   EditorMenuBar.onWorldMenuItemSelect(0, "Snap Off");

In function EditorMenuBar::onWorldMenuItemSelect(%this, %itemId, %item)

Add after the line "EditorMenuBar.onWorldMenuItemSelect(0, "Drop at Screen Center");"

case "Snap On":
		  EWorldEditor.snapToGrid = true;
         %this.setMenuItemChecked("World", %item, true);
      case "Snap Off":
		  EWorldEditor.snapToGrid = false;
         %this.setMenuItemChecked("World", %item, true);

Also note - if you use the gizmos to move things, hold shift down to use the snapping function.