Torque3D/Templates/BaseGame/game/data/UI/guis/remapDlg.tscript

function OptRemapInputCtrl::onInputEvent( %this, %device, %action )
{
   Canvas.popDialog( RemapDlg );

   if ( %device $= "keyboard" && %action $= "escape" )
         return;
   else if( %device $= "gamepad" && %action $= "btn_start" )
         return;

   %cmd  = $RemapCmd[%this.index];
   %name = $RemapName[%this.index];
   %actionMap = $RemapActionMap[%this.index];
   
   echo("OptRemapInputCtrl::onInputEvent() - remapping details: " @ %cmd @ ", " @ %name @ ", " @ %actionMap @ " remapped to: " @ %device @ ", " @ %action);

   // Grab the friendly display name for this action
   // which we'll use when prompting the user below.
   %mapName = getMapDisplayName( %device, %action );
   
   // Get the current command this action is mapped to.
   %prevMap = %actionMap.getCommand( %device, %action );
   
   //TODO: clear all existant keybinds to a command and then bind it so we only have a single one at all times
   unbindExtraActions( %cmd, %actionMap, 0 );
   unbindExtraActions( %cmd, %actionMap, 1 );

   // If nothing was mapped to the previous command 
   // mapping then it's easy... just bind it.
   if ( %prevMap $= "" )
   {
      //unbindExtraActions( %cmd, %actionMap, 1 );
      %actionMap.bind( %device, %action, %cmd );
      
      OptionsMenu.syncGui();
      return;
   }

   // If the previous command is the same as the 
   // current then they hit the same input as what
   // was already assigned.
   if ( %prevMap $= %cmd )
   {
      //unbindExtraActions( %cmd, %actionMap, 0 );
      %actionMap.bind( %device, %action, %cmd );

      OptionsMenu.syncGui();
      return;   
   }

   // Look for the index of the previous mapping.
   %prevMapIndex = findRemapCmdIndex( %prevMap );
   
   // If we get a negative index then the previous 
   // mapping was to an item that isn't included in
   // the mapping list... so we cannot unmap it.
   if ( %prevMapIndex == -1 )
   {
      MessageBoxOK( "Remap Failed", "\"" @ %mapName @ "\" is already bound to a non-remappable command!" );
      return;
   }

   // Setup the forced remapping callback command.
   %callback = "redoMapping(" @ %device @ ", " @ %actionMap @ ", \"" @ %action @ "\", \"" @
                              %cmd @ "\", " @ %prevMapIndex @ ", " @ %this.index @ ");";
   
   // Warn that we're about to remove the old mapping and
   // replace it with another.
   %prevCmdName = $RemapName[%prevMapIndex];
   //Canvas.pushDialog( RemapConfirmDlg );
   
   %remapWarnText = "\"" @ %mapName @ "\" is already bound to \"" @ %prevCmdName @ "\"! Do you wish to replace this mapping?";
   %doRemapCommand = "redoMapping(" @ %device @ ", " @ %actionMap @ ", \"" @ %action @ "\", \"" @
                              %cmd @ "\", " @ %prevMapIndex @ ", " @ %this.index @ ");";
   %cancelCommand = "";
   
   MessageBoxYesNo( "Key already in use", %remapWarnText, %doRemapCommand, %cancelCommand );
}