Increased max possible soldiers stored for friendly fire check to 256.

Friendly fire chance code also checks for soldiers of the same side and optionally neutral civilians.
CalcCoverValue: check friendly fire chance for each position, penalize position if friendly fire chance is high (needs AI_BETTER_COVER = TRUE)

UnderFire::Add: 
- store friendly fire CTH for new added person
- use max value when replacing friendly fire CTH for existing person

CalcBestShot:
- check CTGT and friendly fire chance for every stance
- ignore possible shot if can hit friends in this stance

CalcMoraleNew: improved code to make enemy slightly more aggressive.

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8873 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/LOS.cpp

@@ -285,7 +285,6 @@ static UINT32 guiStructureHitChance[ MAX_DIST_FOR_LESS_THAN_MAX_CHANCE_TO_HIT_ST
 
 #define MIN_DIST_FOR_HIT_FRIENDS 30
 #define MIN_DIST_FOR_HIT_FRIENDS_UNAIMED 15
-#define MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE 3
 
 #define RADIANS_IN_CIRCLE 6.283
 #define DEGREES_22_5 (RADIANS_IN_CIRCLE * 22.5 / 360)

Tactical/LOS.h

@@ -26,6 +26,7 @@ typedef INT64 FIXEDPT;
 // fixed-point arithmetic definitions end here
 
 #define	OK_CHANCE_TO_GET_THROUGH		10
+#define MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE 3
 
 enum CollisionEnums
 {

Tactical/Turn Based Input.cpp

@@ -122,12 +122,12 @@
 #include "InterfaceItemImages.h"		// added by Sevenfm
 #include "DynamicDialogueWidget.h"		// added by Flugente for DelayBoxDestructionBy(...)
 #include "Utilities.h"					// added by Flugente
+#include "AIInternals.h"				// sevenfm
 
 //forward declarations of common classes to eliminate includes
 class OBJECTTYPE;
 class SOLDIERTYPE;
 
-
 extern UIKEYBOARD_HOOK					gUIKeyboardHook;
 extern BOOLEAN	fRightButtonDown;
 extern BOOLEAN	fLeftButtonDown;
@@ -3373,6 +3373,25 @@ void GetKeyboardInput( UINT32 *puiNewEvent )
 					//Get the gridno the cursor is at
 					GetMouseMapPos( &usGridNo );
 
+					// code to test friendly fire detection
+					//if there is a selected soldier, and the cursor location is valid
+					/*if (gusSelectedSoldier != NOBODY && !TileIsOutOfBounds(usGridNo) && gfUIFullTargetFound)
+					{
+						SOLDIERTYPE *pSoldier = MercPtrs[gusSelectedSoldier];
+						SOLDIERTYPE *pOpponent = MercPtrs[gusUIFullTargetID];
+						UINT8 ubChanceToGetThrough;
+
+						if (pSoldier && pOpponent)
+						{
+							gUnderFire.Clear();
+							gUnderFire.Enable();
+							ubChanceToGetThrough = AISoldierToSoldierChanceToGetThrough(pSoldier, pOpponent);
+							gUnderFire.Disable();
+
+							ScreenMsg(FONT_ORANGE, MSG_INTERFACE, L"friendly fire chance %d count %d", gUnderFire.Chance(pSoldier->bTeam, pSoldier->bSide, TRUE), gUnderFire.Count(pSoldier->bTeam));
+						}						
+					}*/
+
 					// if the cursor location is valid					
 					if ( !TileIsOutOfBounds(usGridNo) )
 					{

TacticalAI/AIInternals.h

@@ -146,7 +146,7 @@ public:
 };
 
 //dnl ch61 180813
-#define MAXUNDERFIRE 100
+#define MAXUNDERFIRE 256
 class UnderFire
 {
 private:
@@ -155,14 +155,14 @@ private:
 	UINT16 usUnderFireID[MAXUNDERFIRE];
 	UINT8 ubUnderFireCTH[MAXUNDERFIRE];
 public:
-	UnderFire(void){ Clear(); }
+	UnderFire(void){ Clear(); fEnable = FALSE; }
 	void Clear(void);
 	void Add(UINT16 usID, UINT8 ubCTH);
 	void Enable(void){ fEnable=TRUE; }
 	void Disable(void){ fEnable=FALSE; }
 	UINT16 GetUnderFireCnt(void){ return(usUnderFireCnt); }
 	UINT16 Count(INT8 bTeam);
-	UINT8 Chance(INT8 bTeam);
+	UINT8 Chance(INT8 bTeam, INT8 bSide, BOOLEAN fCheckNeutral);
 };
 extern UnderFire gUnderFire;
 

TacticalAI/AIUtils.cpp

@@ -3874,9 +3874,9 @@ INT8 CalcMoraleNew(SOLDIERTYPE *pSoldier)
 	}
 
 	// count friends that flank around the same spot
-	if( CountFriendsFlankSameSpot( pSoldier ) > 0 )
+	if( CountFriendsFlankSameSpot( pSoldier ) == 0 )
 	{
-		bMoraleCategory --;	
+		bMoraleCategory ++;
 	}
 
 	INT32 sClosestOpponent = ClosestKnownOpponent(pSoldier, NULL, NULL);

TacticalAI/Attacks.cpp

@@ -170,7 +170,7 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 	UINT32 uiLoop;
 	INT32 iAttackValue, iThreatValue, iHitRate, iBestHitRate, iPercentBetter, iEstDamage, iTrueLastTarget;
 	UINT16 usTrueState, usTurningCost, usRaiseGunCost;
-	INT16 ubAimTime, ubMinAPcost, ubRawAPCost, sBestAPcost, ubChanceToHit, ubBestAimTime, ubChanceToGetThrough, ubBestChanceToHit, sStanceAPcost;
+	INT16 ubAimTime, ubMinAPcost, ubRawAPCost, sBestAPcost, ubChanceToHit, ubBestAimTime, ubChanceToGetThrough, ubBestChanceToGetThrough, ubFriendlyFireChance, ubBestFriendlyFireChance, ubBestChanceToHit, sStanceAPcost;
 	BOOLEAN fAddingTurningCost, fAddingRaiseGunCost;
 	UINT8 ubMaxPossibleAimTime, ubStance, ubBestStance, ubChanceToReallyHit;
 	INT8 bScopeMode;
@@ -178,7 +178,7 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 
 	DebugMsg (TOPIC_JA2,DBG_LEVEL_3,"CalcBestShot");
 
-	ubBestChanceToHit = ubBestAimTime = ubChanceToHit = ubChanceToReallyHit = 0;
+	ubBestChanceToHit = ubBestAimTime = ubChanceToHit = ubBestChanceToGetThrough = ubBestFriendlyFireChance = ubChanceToReallyHit = 0;
 
 	// sevenfm: initialize
 	pBestShot->ubPossible = FALSE;
@@ -243,22 +243,23 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 		if (ubMinAPcost > pSoldier->bActionPoints)
 			continue;			// next opponent
 
-		//KeepInterfaceGoing();
-
+		// sevenfm: check CTGT and friendly fire for each stance instead since they can be different
 		// calculate chance to get through the opponent's cover (if any)
 		//dnl ch61 180813
-		gUnderFire.Clear();
+		/*gUnderFire.Clear();
 		gUnderFire.Enable();
 		ubChanceToGetThrough = AISoldierToSoldierChanceToGetThrough( pSoldier, pOpponent );
+		ubFriendlyFireChance = gUnderFire.Chance(pSoldier->bTeam, pSoldier->bSide, TRUE);
 		gUnderFire.Disable();
-		//	ubChanceToGetThrough = ChanceToGetThrough(pSoldier,pOpponent->sGridNo,NOTFAKE,ACTUAL,TESTWALLS,9999,M9PISTOL,NOT_FOR_LOS);
-
-		//NumMessage("Chance to get through = ",ubChanceToGetThrough);
 
 		// if we can't possibly get through all the cover
 		if (ubChanceToGetThrough == 0)
 			continue;			// next opponent
 
+		// sevenfm: ignore opponent if we can hit friend
+		if (ubFriendlyFireChance > MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE)
+			continue;*/
+
 		if ( (pSoldier->flags.uiStatusFlags & SOLDIER_MONSTER) && (pSoldier->ubBodyType != QUEENMONSTER ) )
 		{
 			STRUCTURE_FILE_REF *	pStructureFileRef;
@@ -345,24 +346,40 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 					}
 					ubRawAPCost = MinAPsToShootOrStab(pSoldier, pOpponent->sGridNo, 0, FALSE, 2);
 					ubMinAPcost = ubRawAPCost + usTurningCost + sStanceAPcost + usRaiseGunCost;
-					if(pSoldier->bActionPoints-ubMinAPcost >= 0)
+					if(pSoldier->bActionPoints - ubMinAPcost >= 0)
 					{
 						// calc next attack's minimum shooting cost (excludes readying & turning & raise gun)
 						ubMaxPossibleAimTime = CalcAimingLevelsAvailableWithAP(pSoldier, pOpponent->sGridNo, pSoldier->bActionPoints-ubMinAPcost);
-						for(ubAimTime=APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime<=ubMaxPossibleAimTime; ubAimTime++)
+
+						// sevenfm: check CTGT and friendly fire chance for every stance
+						gUnderFire.Clear();
+						gUnderFire.Enable();
+						ubChanceToGetThrough = AISoldierToSoldierChanceToGetThrough(pSoldier, pOpponent);
+						ubFriendlyFireChance = gUnderFire.Chance(pSoldier->bTeam, pSoldier->bSide, TRUE);
+						gUnderFire.Disable();
+
+						// sevenfm: only use this stance if we can hit target and cannot hit friends
+						if (ubChanceToGetThrough > 0 && ubFriendlyFireChance <= MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE)
 						{
-							ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, STANDING);
-							iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
-							if(iHitRate > iBestHitRate || (Item[pSoldier->usAttackingWeapon].usItemClass & IC_THROWING_KNIFE) && ubChanceToHit > ubBestChanceToHit)// rather take best chance for throwing knives
+							for (ubAimTime = APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime <= ubMaxPossibleAimTime; ubAimTime++)
 							{
-								iBestHitRate = iHitRate;
-								ubBestAimTime = ubAimTime;
-								ubBestChanceToHit = ubChanceToHit;
-								bScopeMode = pSoldier->bScopeMode;
-								sBestAPcost = ubMinAPcost;
-								ubBestStance = ubStance;
+								ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, STANDING);
+								iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
+								// sevenfm: take into account CTGT for every stance
+								if (iHitRate * ubChanceToGetThrough > iBestHitRate * ubBestChanceToGetThrough ||
+									(Item[pSoldier->usAttackingWeapon].usItemClass & IC_THROWING_KNIFE) && ubChanceToHit > ubBestChanceToHit)// rather take best chance for throwing knives
+								{
+									iBestHitRate = iHitRate;
+									ubBestAimTime = ubAimTime;
+									ubBestChanceToHit = ubChanceToHit;
+									ubBestChanceToGetThrough = ubChanceToGetThrough;
+									ubBestFriendlyFireChance = ubFriendlyFireChance;
+									bScopeMode = pSoldier->bScopeMode;
+									sBestAPcost = ubMinAPcost;
+									ubBestStance = ubStance;
+								}
 							}
-						}
+						}						
 					}
 					pSoldier->usAnimState = usTrueState;
 					pSoldier->sLastTarget = iTrueLastTarget;
@@ -395,23 +412,38 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 					ubRawAPCost = MinAPsToShootOrStab(pSoldier, pOpponent->sGridNo, 0, FALSE, 2);
 					ubMinAPcost = ubRawAPCost + usTurningCost + sStanceAPcost + usRaiseGunCost;
 
-					if(pSoldier->bActionPoints-ubMinAPcost >= 0)
+					if(pSoldier->bActionPoints - ubMinAPcost >= 0)
 					{
 						ubMaxPossibleAimTime = CalcAimingLevelsAvailableWithAP(pSoldier, pOpponent->sGridNo, pSoldier->bActionPoints-ubMinAPcost);
-						for(ubAimTime=APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime<=ubMaxPossibleAimTime; ubAimTime++)
+
+						// sevenfm: check CTGT and friendly fire chance for every stance
+						gUnderFire.Clear();
+						gUnderFire.Enable();
+						ubChanceToGetThrough = AISoldierToSoldierChanceToGetThrough(pSoldier, pOpponent);
+						ubFriendlyFireChance = gUnderFire.Chance(pSoldier->bTeam, pSoldier->bSide, TRUE);
+						gUnderFire.Disable();
+
+						// sevenfm: only use this stance if we can hit target and cannot hit friends
+						if (ubChanceToGetThrough > 0 && ubFriendlyFireChance <= MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE)
 						{
-							ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, CROUCHING);
-							iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
-							if(iHitRate > iBestHitRate)
+							for (ubAimTime = APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime <= ubMaxPossibleAimTime; ubAimTime++)
 							{
-								iBestHitRate = iHitRate;
-								ubBestAimTime = ubAimTime;
-								ubBestChanceToHit = ubChanceToHit;
-								bScopeMode = pSoldier->bScopeMode;
-								sBestAPcost = ubMinAPcost;
-								ubBestStance = ubStance;
+								ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, CROUCHING);
+								iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
+								// sevenfm: take into account CTGT for every stance
+								if (iHitRate * ubChanceToGetThrough > iBestHitRate * ubBestChanceToGetThrough)
+								{
+									iBestHitRate = iHitRate;
+									ubBestAimTime = ubAimTime;
+									ubBestChanceToHit = ubChanceToHit;
+									ubBestChanceToGetThrough = ubChanceToGetThrough;
+									ubBestFriendlyFireChance = ubFriendlyFireChance;
+									bScopeMode = pSoldier->bScopeMode;
+									sBestAPcost = ubMinAPcost;
+									ubBestStance = ubStance;
+								}
 							}
-						}
+						}						
 					}
 					pSoldier->usAnimState = usTrueState;
 					pSoldier->sLastTarget = iTrueLastTarget;
@@ -441,21 +473,36 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 					ubRawAPCost = MinAPsToShootOrStab(pSoldier, pOpponent->sGridNo, 0, FALSE, 2);
 					ubMinAPcost = ubRawAPCost + usTurningCost + sStanceAPcost + usRaiseGunCost;
 
-					if(pSoldier->bActionPoints-ubMinAPcost >= 0)
+					if(pSoldier->bActionPoints - ubMinAPcost >= 0)
 					{
 						ubMaxPossibleAimTime = CalcAimingLevelsAvailableWithAP(pSoldier, pOpponent->sGridNo, pSoldier->bActionPoints-ubMinAPcost);
-						for(ubAimTime=APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime<=ubMaxPossibleAimTime; ubAimTime++)
+
+						// sevenfm: check CTGT and friendly fire chance for every stance
+						gUnderFire.Clear();
+						gUnderFire.Enable();
+						ubChanceToGetThrough = AISoldierToSoldierChanceToGetThrough(pSoldier, pOpponent);
+						ubFriendlyFireChance = gUnderFire.Chance(pSoldier->bTeam, pSoldier->bSide, TRUE);
+						gUnderFire.Disable();
+
+						// sevenfm: only use this stance if we can hit target and cannot hit friends
+						if (ubChanceToGetThrough > 0 && ubFriendlyFireChance <= MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE)
 						{
-							ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, PRONE);
-							iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
-							if(iHitRate > iBestHitRate)
+							for (ubAimTime = APBPConstants[AP_MIN_AIM_ATTACK]; ubAimTime <= ubMaxPossibleAimTime; ubAimTime++)
 							{
-								iBestHitRate = iHitRate;
-								ubBestAimTime = ubAimTime;
-								ubBestChanceToHit = ubChanceToHit;
-								bScopeMode = pSoldier->bScopeMode;
-								sBestAPcost = ubMinAPcost;
-								ubBestStance = ubStance;
+								ubChanceToHit = AICalcChanceToHitGun(pSoldier, pOpponent->sGridNo, ubAimTime, AIM_SHOT_TORSO, pOpponent->pathing.bLevel, PRONE);
+								iHitRate = ((pSoldier->bActionPoints - (ubMinAPcost - ubRawAPCost)) * ubChanceToHit) / (ubRawAPCost + ubAimTime * APBPConstants[AP_CLICK_AIM]);
+								// sevenfm: take into account CTGT for every stance
+								if (iHitRate * ubChanceToGetThrough > iBestHitRate * ubBestChanceToGetThrough)
+								{
+									iBestHitRate = iHitRate;
+									ubBestAimTime = ubAimTime;
+									ubBestChanceToHit = ubChanceToHit;
+									ubBestChanceToGetThrough = ubChanceToGetThrough;
+									ubBestFriendlyFireChance = ubFriendlyFireChance;
+									bScopeMode = pSoldier->bScopeMode;
+									sBestAPcost = ubMinAPcost;
+									ubBestStance = ubStance;
+								}
 							}
 						}
 					}
@@ -470,7 +517,7 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 			continue;			// next opponent
 
 		// calculate chance to REALLY hit: shoot accurately AND get past cover
-		ubChanceToReallyHit = (UINT8)ceil((ubBestChanceToHit * ubChanceToGetThrough) / 100.0f);
+		ubChanceToReallyHit = (UINT8)ceil((ubBestChanceToHit * ubBestChanceToGetThrough) / 100.0f);
 
 		// if we can't REALLY hit at all
 		if (ubChanceToReallyHit == 0)
@@ -583,10 +630,7 @@ void CalcBestShot(SOLDIERTYPE *pSoldier, ATTACKTYPE *pBestShot)
 			pBestShot->ubAPCost				= sBestAPcost;
 			pBestShot->ubStance				= ubBestStance;
 			pBestShot->bScopeMode			= bScopeMode;
-			if(gUnderFire.Count(pSoldier->bTeam))//dnl ch61 180813
-				pBestShot->ubFriendlyFireChance = gUnderFire.Chance(pSoldier->bTeam);
-			else
-				pBestShot->ubFriendlyFireChance = 0;
+			pBestShot->ubFriendlyFireChance = ubBestFriendlyFireChance;
 		}
 	}
 
@@ -3199,39 +3243,47 @@ void UnderFire::Clear(void)
 
 void UnderFire::Add(UINT16 usID, UINT8 ubCTH)
 {
-	if(!fEnable)
+	if (!fEnable)
 		return;
-	if(usUnderFireCnt < MAXUNDERFIRE)
+
+	if (usUnderFireCnt < MAXUNDERFIRE)
 	{
-		for(int i=0; i<usUnderFireCnt; i++)
-			if(usUnderFireID[i] == usID)
+		for (int i = 0; i < usUnderFireCnt; i++)
+		{
+			if (usUnderFireID[i] == usID)
 			{
-				if(ubUnderFireCTH[i] != ubCTH)
+				if (ubUnderFireCTH[i] < ubCTH)		// sevenfm: use max value
 					ubUnderFireCTH[i] = ubCTH;
 				return;
 			}
-		usUnderFireID[usUnderFireCnt++] = usID;
+		}
+		ubUnderFireCTH[usUnderFireCnt] = ubCTH;		// sevenfm: store CTH too!
+		usUnderFireID[usUnderFireCnt] = usID;
+		usUnderFireCnt++;
 	}
 }
 
 UINT16 UnderFire::Count(INT8 bTeam)
 {
 	UINT16 cnt = 0;
-	for(int i=0; i<usUnderFireCnt; i++)
+	for (UINT16 i = 0; i < usUnderFireCnt; i++)
 	{
-		if(MercPtrs[usUnderFireID[i]]->bTeam == bTeam)
+		if (MercPtrs[usUnderFireID[i]]->bTeam == bTeam)
 			++cnt;
 	}
 	return(cnt);
 }
 
-UINT8 UnderFire::Chance(INT8 bTeam)
+UINT8 UnderFire::Chance(INT8 bTeam, INT8 bSide, BOOLEAN fCheckNeutral)
 {
 	UINT8 cth = 0;
-	for(int i=0; i<usUnderFireCnt; i++)
+	for (UINT16 i = 0; i < usUnderFireCnt; i++)
 	{
-		if(MercPtrs[usUnderFireID[i]]->bTeam == bTeam && ubUnderFireCTH[i] > cth)
+		if ((MercPtrs[usUnderFireID[i]]->bTeam == bTeam || MercPtrs[usUnderFireID[i]]->bSide == bSide || fCheckNeutral && MercPtrs[usUnderFireID[i]]->aiData.bNeutral) &&
+			ubUnderFireCTH[i] > cth)
+		{
 			cth = ubUnderFireCTH[i];
+		}
 	}
 	return(cth);
 }

TacticalAI/FindLocations.cpp

@@ -306,6 +306,7 @@ INT32 CalcCoverValue(SOLDIERTYPE *pMe, INT32 sMyGridNo, INT32 iMyThreat, INT32 i
 	// sevenfm
 	bHisLevel = pHim->pathing.bLevel;
 	bMyLevel = pMe->pathing.bLevel;
+	UINT8 ubFriendlyFireChance = 0;
 
 	// THE FOLLOWING STUFF IS *VEERRRY SCAARRRY*, BUT SHOULD WORK.	IF YOU REALLY
 	// HATE IT, THEN CHANGE ChanceToGetThrough() TO WORK FROM A GRIDNO TO GRIDNO
@@ -394,9 +395,20 @@ INT32 CalcCoverValue(SOLDIERTYPE *pMe, INT32 sMyGridNo, INT32 iMyThreat, INT32 i
 			pHim->dYPos = (FLOAT) sTempY;
 		}
 
+		// sevenfm: also check friendly fire chance for each position
+		gUnderFire.Clear();
+		gUnderFire.Enable();
 		// let's not assume anything about the stance the enemy might take, so take an average
 		// value... no cover give a higher value than partial cover
 		bMyCTGT = CalcAverageCTGTForPosition( pMe, pHim->ubID, sHisGridNo, pHim->pathing.bLevel, iMyAPsLeft );
+		gUnderFire.Disable();		
+
+		// sevenfm: penalize position if friendly fire chance is high
+		if (gGameExternalOptions.fAIBetterCover  && ubFriendlyFireChance > MIN_CHANCE_TO_ACCIDENTALLY_HIT_SOMEONE)
+		{
+			ubFriendlyFireChance = gUnderFire.Chance(pMe->bTeam, pMe->bSide, TRUE);
+			bMyCTGT = 1;
+		}
 
 		// since NPCs are too dumb to shoot "blind", ie. at opponents that they
 		// themselves can't see (mercs can, using another as a spotter!), if the