[GEN] Backport fix to prevent building multi-selection from Zero Hour (#1305)

This was supposed to fix Scud Bug

Author: Mauller

Generals/Code/GameEngine/Source/GameClient/MessageStream/SelectionXlat.cpp

@@ -1122,6 +1122,15 @@ GameMessageDisposition SelectionTranslator::translateGameMessage(const GameMessa
 				else
 				{
 
+					Drawable *draw = TheInGameUI->getFirstSelectedDrawable();
+					if( draw && draw->isKindOf( KINDOF_STRUCTURE ) )
+					{
+						//Kris: Jan 12, 2005
+						//Can't select other units if you have a structure selected. So deselect the structure to prevent
+						//group force attack exploit.
+						TheInGameUI->deselectAllDrawables();
+					}
+
 					// no need to send two messages for selecting the same group.
 					TheMessageStream->appendMessage((GameMessage::Type)(GameMessage::MSG_ADD_TEAM0 + group));
 					Player *player = ThePlayerList->getLocalPlayer();

Generals/Code/GameEngine/Source/GameLogic/AI/AIStates.cpp

@@ -5312,6 +5312,14 @@ StateReturnType AIAttackState::onEnter()
 	if (m_attackParameters && m_attackParameters->shouldExit(getMachine())) 
 		return STATE_SUCCESS;
 
+	//Kris: Jan 12, 2005
+	//Don't allow units under construction to attack! The selection/action manager system was responsible for preventing this
+	//from ever happening, but failed in two cases which I fixed. This is an extra check to mitigate cheats.
+	if( source->testStatus( OBJECT_STATUS_UNDER_CONSTRUCTION ) )
+	{
+		return STATE_FAILURE;
+	}
+
 	// if all of our weapons are out of ammo, can't attack.
 	// (this can happen for units which never auto-reload, like the Raptor)
 	if (source->isOutOfAmmo() && !source->isKindOf(KINDOF_PROJECTILE))