bug fixes from Overhaul:

- CTD when someone fell off the west side of a building 
- Assertion failure when Skyrider leaves a sector where a merc cannot be woken up 
- Boxing fixes: Opponent no longer "seeks cover", ie jumps back out of the ring; no longer will pick up a gun from the ground while boxing
- Disappearing corpses (and possibly items) when cursor hovers over a square on the rooftop; also fixes a "write to freed memory" heap check

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@867 3b4a5df2-a311-0410-b5c6-a8a6f20db521

TacticalAI/FindLocations.cpp

@@ -554,6 +554,12 @@ INT16 FindBestNearbyCover(SOLDIERTYPE *pSoldier, INT32 morale, INT32 *piPercentB
 	UINT8	ubLightPercentDifference;
 	BOOLEAN		fNight;
 
+	// There's no cover when boxing!
+	if (gTacticalStatus.bBoxingState == BOXING)
+	{
+		return (NOWHERE);
+	}
+
 	if ( gbWorldSectorZ > 0 )
 	{
 		fNight = FALSE;
@@ -1638,6 +1644,12 @@ INT8 SearchForItems( SOLDIERTYPE * pSoldier, INT8 bReason, UINT16 usItem )
 	iTempValue = -1;
 	iItemIndex = iBestItemIndex = -1;
 
+	// No fair picking up weapons while boxing!
+	if (gTacticalStatus.bBoxingState == BOXING)
+	{
+		return AI_ACTION_NONE;
+	}
+
 	if (pSoldier->bActionPoints < AP_PICKUP_ITEM)
 	{
 		return( AI_ACTION_NONE );