Fix (by Asdow): Enemy cover display performance improved.

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8685 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/DisplayCover.cpp

@@ -88,18 +88,23 @@ void	AddCoverObjectsToViewArea();
 void	RemoveCoverObjectsFromViewArea();
 
 void	CalculateCover();
+void	CalculateCoverFromEnemies();
 void	CalculateMines();
 void	CalculateTraitRange();
 void	CalculateTrackerRange();
 void	CalculateFortify();
 void	CalculateWeapondata();
 
+void CalculateCoverFromEnemySoldier(SOLDIERTYPE* pFromSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bOverlayType, SOLDIERTYPE* pToSoldier, const BOOLEAN& bFromSoldierCowering, const UINT8& tunnelVision, const INT8 ToSoldierStealth, const INT8 ToSoldierLBeSightAdjustment);
+
+
 void	GetGridNoForViewPort( const INT32& ubX, const INT32& ubY, INT32& sGridNo );
 
 BOOLEAN GridNoOnScreenAndAround( const INT32& sGridNo, const UINT8& ubRadius=2 );
 
 BOOLEAN IsTheRoofVisible( const INT32& sGridNo );
-BOOLEAN HasAdjTile( const INT32& ubX, const INT32& ubY );
+BOOLEAN HasAdjTile(const INT32& ubX, const INT32& ubY, const INT32& ubZ);
+
 
 TileDefines GetOverlayIndex( INT8 bOverlayType )
 {
@@ -491,10 +496,13 @@ void DisplayCover( BOOLEAN forceUpdate )
 		switch ( gubDrawMode )
 		{
 		case COVER_DRAW_MERC_VIEW:
-		case COVER_DRAW_ENEMY_VIEW:
 			CalculateCover();
 			break;
 
+		case COVER_DRAW_ENEMY_VIEW:
+			CalculateCoverFromEnemies();
+			break;
+
 		case MINES_DRAW_DETECT_ENEMY:
 		case MINES_DRAW_PLAYERTEAM_NETWORKS:
 		case MINES_DRAW_NETWORKCOLOURING:
@@ -526,99 +534,40 @@ void DisplayCover( BOOLEAN forceUpdate )
 	}
 }
 
-void CalculateCover()
+
+
+static void CalculateCoverFromEnemies()
 {
-	register INT32 ubX, ubY;
-	register INT8 ubZ;
-	SOLDIERTYPE* pSoldier;
-
-	if( gusSelectedSoldier == NOBODY )
+	if (gusSelectedSoldier == NOBODY)
 		return;
-	
-	GetSoldier( &pSoldier, gusSelectedSoldier );
-	
-	for ( ubX=gsMinCellX; ubX<=gsMaxCellX; ++ubX )
+
+	SOLDIERTYPE* pSoldier;
+	GetSoldier(&pSoldier, gusSelectedSoldier);
+	INT8 OurSoldierStealth = GetStealth(pSoldier);
+	INT8 OurSoldierLBESightAdjustment = GetSightAdjustmentBasedOnLBE(pSoldier);
+
+
+	// Loop through the grid and reset cover
+	for (INT32 ubX = gsMinCellX; ubX <= gsMaxCellX; ++ubX)
 	{
-		for ( ubY=gsMinCellY; ubY<=gsMaxCellY; ++ubY )
+		for (INT32 ubY = gsMinCellY; ubY <= gsMaxCellY; ++ubY)
 		{
-			for ( ubZ=0; ubZ<COVER_Z_CELLS; ++ubZ )
+			for (INT8 ubZ = 0; ubZ < COVER_Z_CELLS; ++ubZ)
 			{
-				INT32& sGridNo = gCoverViewArea[ ubX ][ ubY ][ ubZ ].sGridNo;
-
-				if( !GridNoOnScreenAndAround( sGridNo, 2 ) )
-					continue;
-								
-				if ( IsTheRoofVisible( sGridNo ) )
-				{
-					// do not show stuff on ground if roof is shown
-					if ( ubZ == I_GROUND_LEVEL )
-						continue;
-				}
-				else
-				{
-					// do not show stuff on roofs if ground is shown
-					if ( ubZ == I_ROOF_LEVEL )
-						continue;
-				}
-
-				if ( !NewOKDestination( pSoldier, sGridNo, false, ubZ ) )
-					continue;
-
 				INT8& bOverlayType = gCoverViewArea[ubX][ubY][ubZ].bOverlayType;
-
-				if ( gubDrawMode == COVER_DRAW_ENEMY_VIEW ) // view of enemies against your selected merc
-				{
-					// reset cover value
-					bOverlayType = MAX_COVER;
-					CalculateCoverForSoldier( pSoldier, sGridNo, ubZ, bOverlayType );
-				}
-				else if ( gubDrawMode == COVER_DRAW_MERC_VIEW )
-				{
-					// reset cover value
-					bOverlayType = MAX_COVER;
-					if ( gTacticalStatus.fAtLeastOneGuyOnMultiSelect ) // view of selected mercs
-					{
-						// OK, loop through all guys who are 'multi-selected' and
-						INT32 cnt = gTacticalStatus.Team[gbPlayerNum].bFirstID;
-						for ( pSoldier = MercPtrs[ cnt ]; cnt <= gTacticalStatus.Team[ gbPlayerNum ].bLastID; ++cnt, ++pSoldier )
-						{
-							if ( pSoldier->bActive && pSoldier->bInSector )
-							{
-								if ( pSoldier->flags.uiStatusFlags & SOLDIER_MULTI_SELECTED )
-								{
-									CalculateCoverFromSoldier( pSoldier, sGridNo, ubZ, bOverlayType );
-
-									// if the tile is already NO_COVER, there's no need to continue
-									if ( NO_COVER == bOverlayType )
-										break;
-								}
-							}
-						}
-					}
-					else // single view from your merc
-						CalculateCoverFromSoldier( pSoldier, sGridNo, ubZ, bOverlayType );
-
-					// we use different enums for our merc's sight to avoid confusing inverse sight
-					bOverlayType = MAX_SEE - bOverlayType;
-				}
+				bOverlayType = MAX_COVER;
 			}
 		}
 	}
 
-	AddCoverObjectsToViewArea();
-}
 
-void CalculateCoverForSoldier( SOLDIERTYPE* pSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bOverlayType )
-{
-	UINT32		uiLoop;
-	SOLDIERTYPE *pOpponent;
-	INT8		*pbPersOL;
-	INT8		*pbPublOL;
-
-	//loop through all the enemies and determine the cover
-	for (uiLoop = 0; uiLoop<guiNumMercSlots; ++uiLoop)
+	//loop through all the actors in the sector and save enemies' info for cover calculation
+	std::vector<SOLDIERTYPE*> pOpponents;
+	std::vector<BOOLEAN> bCowering;
+	std::vector<UINT8> tunnelVision;
+	for (UINT32 i = 0; i < guiNumMercSlots; ++i)
 	{
-		pOpponent = MercSlots[ uiLoop ];
+		SOLDIERTYPE *pOpponent = MercSlots[i];
 
 		// if this merc is inactive, at base, on assignment, dead, unconscious
 		if (!pOpponent || pOpponent->stats.bLife < OKLIFE)
@@ -627,30 +576,166 @@ void CalculateCoverForSoldier( SOLDIERTYPE* pSoldier, const INT32& sTargetGridNo
 		}
 
 		// if this man is neutral / on the same side, he's not an opponent
- 		if( CONSIDERED_NEUTRAL( pSoldier, pOpponent ) || (pSoldier->bSide == pOpponent->bSide))
+		if (CONSIDERED_NEUTRAL(pSoldier, pOpponent) || (pSoldier->bSide == pOpponent->bSide))
 		{
 			continue;			// next merc
 		}
 
-		pbPersOL = pSoldier->aiData.bOppList + pOpponent->ubID;
-		pbPublOL = gbPublicOpplist[ OUR_TEAM ] + pOpponent->ubID;
+		INT8 *pbPersOL = pSoldier->aiData.bOppList + pOpponent->ubID;
+		INT8 *pbPublOL = gbPublicOpplist[OUR_TEAM] + pOpponent->ubID;
 
 		// if this opponent is unknown personally and publicly
-		if( *pbPersOL != SEEN_CURRENTLY && *pbPublOL != SEEN_CURRENTLY )
+		if (*pbPersOL != SEEN_CURRENTLY && *pbPublOL != SEEN_CURRENTLY)
 		{
 			continue;			// next merc
 		}
 
-		CalculateCoverFromSoldier( pOpponent, sTargetGridNo, fRoof, bOverlayType, pSoldier );
+		pOpponents.push_back(pOpponent);
+		bCowering.push_back(CoweringShockLevel(pOpponent));
+		tunnelVision.push_back(GetPercentTunnelVision(pOpponent));
+	}
 
-		// if we got no cover, just return, can't get any worse than that. Helldorados lets you count
-		if ( bOverlayType == NO_COVER )
+
+	// Calculate cover for the whole grid, one opponent at a time.
+	for (UINT32 i = 0; i < pOpponents.size(); ++i)
+	{
+		SOLDIERTYPE *pOpponent = pOpponents[i];
+		BOOLEAN isCowering = bCowering[i];
+		UINT8 tunnelVisionPercentage = tunnelVision[i];
+
+
+		for (INT32 ubX = gsMinCellX; ubX <= gsMaxCellX; ++ubX)
 		{
-			return;
+			for (INT32 ubY = gsMinCellY; ubY <= gsMaxCellY; ++ubY)
+			{
+				for (INT8 ubZ = 0; ubZ < COVER_Z_CELLS; ++ubZ)
+				{
+					INT32& sGridNo = gCoverViewArea[ubX][ubY][ubZ].sGridNo;
+					if (!GridNoOnScreenAndAround(sGridNo, 2))
+						continue;
+
+
+					INT8& bOverlayType = gCoverViewArea[ubX][ubY][ubZ].bOverlayType;
+
+					if (IsTheRoofVisible(sGridNo))
+					{
+						// do not show stuff on ground if roof is shown
+						if (ubZ == I_GROUND_LEVEL) 
+						{
+							bOverlayType = INVALID_COVER;
+							continue;
+						}
+					}
+					else
+					{
+						// do not show stuff on roofs if ground is shown
+						if (ubZ == I_ROOF_LEVEL)
+						{
+							bOverlayType = INVALID_COVER;
+							continue;
+						}
+					}
+
+
+					if (!NewOKDestination(pSoldier, sGridNo, false, ubZ))
+						continue;
+
+
+					//Skip cover calculation if there already is no cover.
+					if (bOverlayType == NO_COVER)
+					{
+						continue;
+					}
+					else
+					{
+						CalculateCoverFromEnemySoldier(pOpponent, sGridNo, ubZ, bOverlayType, pSoldier, isCowering, tunnelVisionPercentage, OurSoldierStealth, OurSoldierLBESightAdjustment);
+					}
+				}
+			}
 		}
 	}
+
+
+	AddCoverObjectsToViewArea();
 }
 
+
+void CalculateCover()
+{
+	register INT32 ubX, ubY;
+	register INT8 ubZ;
+	SOLDIERTYPE* pSoldier;
+
+	if (gusSelectedSoldier == NOBODY)
+		return;
+
+	GetSoldier(&pSoldier, gusSelectedSoldier);
+
+	for (ubX = gsMinCellX; ubX <= gsMaxCellX; ++ubX)
+	{
+		for (ubY = gsMinCellY; ubY <= gsMaxCellY; ++ubY)
+		{
+			for (ubZ = 0; ubZ < COVER_Z_CELLS; ++ubZ)
+			{
+				INT32& sGridNo = gCoverViewArea[ubX][ubY][ubZ].sGridNo;
+
+				if (!GridNoOnScreenAndAround(sGridNo, 2))
+					continue;
+
+				if (IsTheRoofVisible(sGridNo))
+				{
+					// do not show stuff on ground if roof is shown
+					if (ubZ == I_GROUND_LEVEL)
+						continue;
+				}
+				else
+				{
+					// do not show stuff on roofs if ground is shown
+					if (ubZ == I_ROOF_LEVEL)
+						continue;
+				}
+
+				if (!NewOKDestination(pSoldier, sGridNo, false, ubZ))
+					continue;
+
+				INT8& bOverlayType = gCoverViewArea[ubX][ubY][ubZ].bOverlayType;
+
+				// reset cover value
+				bOverlayType = MAX_COVER;
+				if (gTacticalStatus.fAtLeastOneGuyOnMultiSelect) // view of selected mercs
+				{
+					// OK, loop through all guys who are 'multi-selected' and
+					INT32 cnt = gTacticalStatus.Team[gbPlayerNum].bFirstID;
+					for (pSoldier = MercPtrs[cnt]; cnt <= gTacticalStatus.Team[gbPlayerNum].bLastID; ++cnt, ++pSoldier)
+					{
+						if (pSoldier->bActive && pSoldier->bInSector)
+						{
+							if (pSoldier->flags.uiStatusFlags & SOLDIER_MULTI_SELECTED)
+							{
+								CalculateCoverFromSoldier(pSoldier, sGridNo, ubZ, bOverlayType);
+
+								// if the tile is already NO_COVER, there's no need to continue
+								if (NO_COVER == bOverlayType)
+									break;
+							}
+						}
+					}
+				}
+				else // single view from your merc
+				{
+					CalculateCoverFromSoldier(pSoldier, sGridNo, ubZ, bOverlayType);
+				}
+
+				// we use different enums for our merc's sight to avoid confusing inverse sight
+				bOverlayType = MAX_SEE - bOverlayType;
+			}
+		}
+	}
+
+	AddCoverObjectsToViewArea();
+}
+
+
 void CalculateCoverFromSoldier( SOLDIERTYPE* pFromSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bOverlayType, SOLDIERTYPE* pToSoldier )
 {
 	UINT16 usSightLimit = pFromSoldier->GetMaxDistanceVisible(sTargetGridNo, (INT8)fRoof, CALC_FROM_WANTED_DIR);
@@ -664,7 +749,7 @@ void CalculateCoverFromSoldier( SOLDIERTYPE* pFromSoldier, const INT32& sTargetG
 		if (pToSoldier == NULL) {
 			usAdjustedSight = usSightLimit;
 		} else {
-			usAdjustedSight = usSightLimit + usSightLimit * GetSightAdjustment( pToSoldier, sTargetGridNo, (INT8) fRoof, ubStance ) /100;
+			usAdjustedSight = usSightLimit + usSightLimit * GetSightAdjustment( pToSoldier, GetStealth(pToSoldier), GetSightAdjustmentBasedOnLBE(pToSoldier), sTargetGridNo, (INT8) fRoof, ubStance ) /100;
 		}
 
 		if ( SoldierToVirtualSoldierLineOfSightTest( pFromSoldier, sTargetGridNo, (INT8) fRoof, ubStance, FALSE, usAdjustedSight ) != 0 )
@@ -675,6 +760,32 @@ void CalculateCoverFromSoldier( SOLDIERTYPE* pFromSoldier, const INT32& sTargetG
 	}
 }
 
+static void CalculateCoverFromEnemySoldier(SOLDIERTYPE* pFromSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bOverlayType, SOLDIERTYPE* pToSoldier, const BOOLEAN& bFromSoldierCowering, const UINT8& tunnelVision, const INT8 ToSoldierStealth, const INT8 ToSoldierLBeSightAdjustment)
+{
+	// Had to extract this from SOLDIERTYPE::GetMaxDistanceVisible() function due to performance improvement from minimizing recalculating CoweringShockLevel(pSoldier) & GetPercentTunnelVision(pSoldier)
+	UINT16 usSightLimit = DistanceVisible(pFromSoldier, (SoldierHasLimitedVision(pFromSoldier) ? pFromSoldier->pathing.bDesiredDirection : DIRECTION_IRRELEVANT), DIRECTION_IRRELEVANT, sTargetGridNo, (INT8)fRoof, bFromSoldierCowering, tunnelVision);
+
+	for (int i = 0; i < sizeof(animArr); ++i)
+	{
+		const UINT8& ubStance = animArr[i];
+
+		INT32 usAdjustedSight;
+
+		if (pToSoldier == nullptr) {
+			usAdjustedSight = usSightLimit;
+		}
+		else {
+			usAdjustedSight = usSightLimit + usSightLimit * GetSightAdjustment(pToSoldier, ToSoldierStealth, ToSoldierLBeSightAdjustment, sTargetGridNo, (INT8)fRoof, ubStance) / 100;
+		}
+
+		if (SoldierToVirtualSoldierLineOfSightTest(pFromSoldier, sTargetGridNo, (INT8)fRoof, ubStance, FALSE, usAdjustedSight) != 0)
+		{
+			if (bOverlayType > i) bOverlayType = i;
+			break; // we go from prone to stand, if soldier can see someone crouching, he can also see someone standing
+		}
+	}
+}
+
 BOOLEAN CanSoldierSeeFloor( SOLDIERTYPE* pSoldier, INT32 sGridNo, INT8 bLevel )
 {
 	if ( !pSoldier )
@@ -717,7 +828,7 @@ void DisplayRangeToTarget( SOLDIERTYPE *pSoldier, INT32 sTargetGridNo )
 			ubTerrainType = GetTerrainTypeForGrid(sTargetGridNo, gsInterfaceLevel);
 		}
 
-		INT8 ubCover = - GetSightAdjustment(pSoldier, sTargetGridNo, gsInterfaceLevel);
+		INT8 ubCover = - GetSightAdjustment(pSoldier, GetStealth(pSoldier), GetSightAdjustmentBasedOnLBE(pSoldier), sTargetGridNo, gsInterfaceLevel);
 
 		//display a string with cover value of current selected merc and brightness
 		//swprintf( zOutputString, gzDisplayCoverText[DC_MSG__COVER_INFORMATION], ubCover, GetTerrainName(ubTerrainType), ubBrightness );

Tactical/DisplayCover.h

@@ -11,7 +11,6 @@ void SwitchViewOff();
 void ToggleMercView();
 void ToggleEnemyView();
 
-void	CalculateCoverForSoldier( SOLDIERTYPE* pForSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bCover );
 void	CalculateCoverFromSoldier( SOLDIERTYPE* pFromSoldier, const INT32& sTargetGridNo, const BOOLEAN& fRoof, INT8& bCover, SOLDIERTYPE* pToSoldier = NULL );
 BOOLEAN CanSoldierSeeFloor( SOLDIERTYPE* pSoldier, INT32 sGridNo, INT8 bLevel );
 
@@ -83,13 +82,6 @@ enum COVER_DRAW_MODE {
 	DRAW_MODE_WEAPONDATA,
 };
 
-void ChangeSizeOfDisplayCover( INT32 iNewSize );
-
-void ChangeSizeOfLOS( INT32 iNewSize );
-//ddd for optimize oppponent turn
-INT8	CalcCoverForGridNoBasedOnTeamKnownEnemies( SOLDIERTYPE *pSoldier, INT16 sTargetGridNo, INT8 bStance );
-//ddd for optimize oppponent turn
-
 
 // ----------------------------- Mines display after this ----------------------------------------
 // added by Flugente: display of mine, bombs and tripwire

Tactical/LOS.cpp

@@ -461,7 +461,7 @@ inline UINT8 GetBrightness(const UINT8& ubLightLevel)
 * Calculates the total stealth value of a player.
 *
 * @param pSoldier
-* @return ANIM_STAND or ANIM_CROUCH or ANIM_PRONE
+* @return stealth percentage, capped to 100.
 */
 inline INT8 GetStealth( SOLDIERTYPE* pSoldier )
 {
@@ -700,26 +700,27 @@ INT8 GetDetailedSightAdjustmentCamouflageOnTerrain( SOLDIERTYPE* pSoldier, const
 * - this will be used to calculate the penalty (sight addition) which occurs on the soldier who is been spot-tested
 * - it also will be used to reduce the ability to find others if the spotter moves
 *
-* @param pSoldier the target
+* @param bTilesMoved amount of tiles the target has moved
+* @param ubLightLevel true light level at target location, given back by LightTrueLevel function
+* @param ibStealthInPercent the target's stealth value, given back by GetStealth function
+* @param hasStealthyTrait boolean value saying if target has the stealthy trait, given back by HAS_SKILL_TRAIT function
 * @return a negative value will indicate a reduction of sight, a positive one an addition to sight
 */
-INT8 GetSightAdjustmentThroughMovement( SOLDIERTYPE* pSoldier, const INT8& bTilesMoved, const UINT8& ubLightLevel  )
+INT8 GetSightAdjustmentThroughMovement(const INT8& bTilesMoved, const UINT8& ubLightLevel, const INT8& ibStealthInPercent, const BOOLEAN& hasStealthyTrait)
 {
 	if (gGameExternalOptions.ubMovementEffectiveness == 0) {
 		return 0;
 	}
 
-	INT8 stealth = GetStealth(pSoldier);
-
-	INT8 bMovementAdjustment = bTilesMoved * ( 100 - stealth ) / 100;
+	INT8 bMovementAdjustment = bTilesMoved * (100 - ibStealthInPercent) / 100;
 
 	// SANDRO - added reduction of penalty for moving for Stealthy trait with new traits
-	if ( gGameOptions.fNewTraitSystem && HAS_SKILL_TRAIT( pSoldier, STEALTHY_NT ))
-		bMovementAdjustment = max(0, (bMovementAdjustment * (100 - gSkillTraitValues.ubSTStealthPenaltyForMovingReduction) / 100) );
+	if (gGameOptions.fNewTraitSystem && hasStealthyTrait)
+		bMovementAdjustment = max(0, (bMovementAdjustment * (100 - gSkillTraitValues.ubSTStealthPenaltyForMovingReduction) / 100));
 
-	UINT8 ubBrightness = (100 - GetBrightness( ubLightLevel ));
+	UINT8 ubBrightness = (100 - GetBrightness(ubLightLevel));
 
-	return MINMAX100N( bMovementAdjustment * ubBrightness / 100 * gGameExternalOptions.ubMovementEffectiveness / 100 );
+	return MINMAX100N(bMovementAdjustment * ubBrightness / 100 * gGameExternalOptions.ubMovementEffectiveness / 100);
 }
 
 INT8 GetSightAdjustmentThroughStance( const UINT8& ubStance )
@@ -785,25 +786,23 @@ INT8 GetSightAdjustmentBasedOnLBE( SOLDIERTYPE* pSoldier )
 * Calculates a percentage value to be added (or substracted) from sight. it's based on the stealth value and the brightness.
 * - usually it should return something smaller than 0 but we might give a bonus if the target uses a lamp for better viewing (LAM-Lamp) which the spotter can see
 *
-* @param pSoldier the target
 * @param ubLightLevel light level given back by the LightTrueLevel function
+* @param ibStealthInPercent the target's stealth value, given back by the GetStealth function
 * @return a negative value will indicate a reduction of sight, a positive one an addition to sight
 */
-INT8 GetSightAdjustmentStealthAtLightLevel( SOLDIERTYPE* pSoldier, const UINT8& ubLightLevel )
+INT8 GetSightAdjustmentStealthAtLightLevel(const UINT8& ubLightLevel, const INT8& ibStealthInPercent)
 {
 	if (gGameExternalOptions.ubStealthEffectiveness == 0) {
 		return 0;
 	}
 
 	// set scaler to scale with light level (dark = 100%)
-	UINT8 ubScaler = GetBrightness( ubLightLevel );
+	UINT8 ubScaler = GetBrightness(ubLightLevel);
 
 	// last term corresponds to the maximum of ubScaler before
-	ubScaler = (UINT8)( ubScaler * gGameExternalOptions.ubStealthEffectiveness / 100.0f );
+	ubScaler = (UINT8)(ubScaler * gGameExternalOptions.ubStealthEffectiveness / 100.0f);
 
-	INT8 ibStealthInPercent = GetStealth( pSoldier );
-
-	return MINMAX100N( - ibStealthInPercent * ubScaler / 100);
+	return MINMAX100N(-ibStealthInPercent * ubScaler / 100);
 }
 
 /**
@@ -855,8 +854,11 @@ INT8 GetSightAdjustmentBehindStructure( const INT16& iRange, STRUCTURE* pStructu
 
 /*
 * Easy way to get all sight adjustments into one that affect a soldier
+*
+* Used by CalculateCoverFromEnemySoldier in DisplayCover.cpp
+* Hoisting out the GetStealth and GetSightAdjustmentBasedOnLBE out of the hot loop made considerable difference in performance.
 */
-INT16 GetSightAdjustment( SOLDIERTYPE* pSoldier, INT32 sGridNo, INT16 bLevel, INT8 bStance )
+INT16 GetSightAdjustment(SOLDIERTYPE* pSoldier, INT8 soldierStealth, INT8 soldierLBESightAdjustment, INT32 sGridNo, INT16 bLevel, INT8 bStance)
 {
 	if (sGridNo == -1) {
 		sGridNo = pSoldier->sGridNo;
@@ -867,50 +869,50 @@ INT16 GetSightAdjustment( SOLDIERTYPE* pSoldier, INT32 sGridNo, INT16 bLevel, IN
 	}
 
 	if (bStance == -1) {
-		bStance = GetCurrentHeightOfSoldier( pSoldier );
+		bStance = GetCurrentHeightOfSoldier(pSoldier);
 	}
 
 	UINT8 ubTerrainType = NO_TERRAIN;
 	// anv: additional tile properties
 	ADDITIONAL_TILE_PROPERTIES_VALUES zGivenTileProperties;
-	memset(&zGivenTileProperties,0,sizeof(zGivenTileProperties));
-	if(gGameExternalOptions.fAdditionalTileProperties)
+	memset(&zGivenTileProperties, 0, sizeof(zGivenTileProperties));
+	if (gGameExternalOptions.fAdditionalTileProperties)
 	{
 		zGivenTileProperties = GetAllAdditonalTilePropertiesForGrid(sGridNo, bLevel);
 	}
 	else
 	{
-		ubTerrainType = GetTerrainTypeForGrid( sGridNo, bLevel );
+		ubTerrainType = GetTerrainTypeForGrid(sGridNo, bLevel);
 	}
 
-	UINT8 ubLightLevel = LightTrueLevel( sGridNo, bLevel );
 
 	INT16 iSightAdjustment = 0;
 
 	// general stuff (independant of soldier)
-	iSightAdjustment += GetSightAdjustmentThroughStance( bStance );
+	iSightAdjustment += GetSightAdjustmentThroughStance(bStance);
 
 	// context sensitive (needs soldier)
-	iSightAdjustment += GetSightAdjustmentBasedOnLBE( pSoldier );
+	iSightAdjustment += soldierLBESightAdjustment;
 
 	// context sensitive stuff with 2nd parameter (needs soldier for attributes but can be given a second parameter)
-	iSightAdjustment += GetSightAdjustmentThroughMovement( pSoldier, pSoldier->bTilesMoved, ubLightLevel );
-	iSightAdjustment += GetSightAdjustmentStealthAtLightLevel( pSoldier, ubLightLevel );
+	UINT8 ubLightLevel = LightTrueLevel(sGridNo, bLevel);
+	iSightAdjustment += GetSightAdjustmentThroughMovement(pSoldier->bTilesMoved, ubLightLevel, soldierStealth, HAS_SKILL_TRAIT(pSoldier, STEALTHY_NT));
+	iSightAdjustment += GetSightAdjustmentStealthAtLightLevel(ubLightLevel, soldierStealth);
 
-	if(gGameExternalOptions.fAdditionalTileProperties)
+	if (gGameExternalOptions.fAdditionalTileProperties)
 	{
-		iSightAdjustment += GetDetailedSightAdjustmentCamouflageOnTerrain( pSoldier, bStance, zGivenTileProperties );
+		iSightAdjustment += GetDetailedSightAdjustmentCamouflageOnTerrain(pSoldier, bStance, zGivenTileProperties);
 	}
 	else
 	{
-		iSightAdjustment += GetSightAdjustmentCamouflageOnTerrain( pSoldier, bStance, ubTerrainType );
+		iSightAdjustment += GetSightAdjustmentCamouflageOnTerrain(pSoldier, bStance, ubTerrainType);
 	}
 
 	// anv: some places in vehicle completely obscure passenger from outside
-	INT8 bSeatIndex = GetSeatIndexFromSoldier( pSoldier );
-	if( bSeatIndex != (-1) )
+	INT8 bSeatIndex = GetSeatIndexFromSoldier(pSoldier);
+	if (bSeatIndex != (-1))
 	{
-		if( gNewVehicle[ pVehicleList[ pSoldier->iVehicleId ].ubVehicleType ].VehicleSeats[ bSeatIndex ].fHidden )
+		if (gNewVehicle[pVehicleList[pSoldier->iVehicleId].ubVehicleType].VehicleSeats[bSeatIndex].fHidden)
 		{
 			iSightAdjustment = (-100);
 		}
@@ -919,6 +921,7 @@ INT16 GetSightAdjustment( SOLDIERTYPE* pSoldier, INT32 sGridNo, INT16 bLevel, IN
 	return MINMAX100N(iSightAdjustment);
 }
 
+
 BOOLEAN ResolveHitOnWall( STRUCTURE * pStructure, INT32 iGridNo, INT8 bLOSIndexX, INT8 bLOSIndexY, DOUBLE ddHorizAngle )
 {
 	BOOLEAN				fNorthSouth, fEastWest;
@@ -2342,20 +2345,21 @@ INT32 SoldierToSoldierLineOfSightTest( SOLDIERTYPE * pStartSoldier, SOLDIERTYPE
 	// needed for sight limit calculation
 	if (iTileSightLimit == CALC_FROM_ALL_DIRS || iTileSightLimit == CALC_FROM_WANTED_DIR) {
 		iTileSightLimit = pStartSoldier->GetMaxDistanceVisible( pEndSoldier->sGridNo, pEndSoldier->pathing.bLevel, iTileSightLimit );
-		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier) / 100;
+		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier, GetStealth(pEndSoldier), GetSightAdjustmentBasedOnLBE(pEndSoldier)) / 100;
+
 	}
 
 	// needed for gun hit calculation (can you even hit him)
 	else if (iTileSightLimit == NO_DISTANCE_LIMIT) {
 		iTileSightLimit = pStartSoldier->GetMaxDistanceVisible( pEndSoldier->sGridNo, pEndSoldier->pathing.bLevel, CALC_FROM_ALL_DIRS );
-		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier) / 100;
+		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier, GetStealth(pEndSoldier), GetSightAdjustmentBasedOnLBE(pEndSoldier)) / 100;
 		iTileSightLimit += 255; // this shifts the limit for something special (we don't know yet)
 	}
 
 	// we assume that if we are given a limit it doesn't include stealth or similar stuff
 	// for other function we assume the opposite but not this one, as we here are given the needed target soldier information to calculate sight adjustment
 	else {
-		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier) / 100;
+		iTileSightLimit += iTileSightLimit * GetSightAdjustment(pEndSoldier, GetStealth(pEndSoldier), GetSightAdjustmentBasedOnLBE(pEndSoldier)) / 100;
 	}
 
 	// anv: special check for vehicles - since they're no longer transparent, we need to check for visibility 

Tactical/LOS.h

@@ -199,7 +199,7 @@ ADDITIONAL_TILE_PROPERTIES_VALUES GetAllAdditonalTilePropertiesForGrid( const IN
 INT8 GetSightAdjustmentThroughStance( const UINT8& ubStance );
 
 // quick way to get all. should be used for all sight line tests with target soldier known
-INT16 GetSightAdjustment( SOLDIERTYPE* pSoldier, INT32 sGridNo = -1, INT16 bLevel = -1, INT8 bStance = -1 );
+INT16 GetSightAdjustment(SOLDIERTYPE* pSoldier, INT8 soldierStealth, INT8 soldierLBESightAdjustment, INT32 sGridNo = -1, INT16 bLevel = -1, INT8 bStance = -1);
 
 //zilpin: pellet spread patterns externalized in XML
 #define SPREADPATTERN_NAME_SIZE 32
@@ -254,4 +254,8 @@ FLOAT CalcCounterForceChange( SOLDIERTYPE * pShooter, UINT32 uiCounterForceAccur
 // Flugente: riot shields
 void DamageRiotShield( SOLDIERTYPE* pSoldier, INT32& rsDamage, INT32& rsSecondaryDamage );
 
+
+extern INT8 GetStealth(SOLDIERTYPE* pSoldier);
+extern INT8 GetSightAdjustmentBasedOnLBE(SOLDIERTYPE* pSoldier);
+
 #endif

Tactical/opplist.cpp

@@ -1182,13 +1182,13 @@ INT16 SOLDIERTYPE::GetMaxDistanceVisible(INT32 sGridNo, INT8 bLevel, int calcAsT
 
 	if (calcAsType == CALC_FROM_ALL_DIRS)
 	{
-		return DistanceVisible( this, DIRECTION_IRRELEVANT, DIRECTION_IRRELEVANT, sGridNo, bLevel );
+		return DistanceVisible( this, DIRECTION_IRRELEVANT, DIRECTION_IRRELEVANT, sGridNo, bLevel, CoweringShockLevel(this), GetPercentTunnelVision(this) );
 	}
 
-	return DistanceVisible( this, (SoldierHasLimitedVision(this) ? this->pathing.bDesiredDirection : DIRECTION_IRRELEVANT), DIRECTION_IRRELEVANT, sGridNo, bLevel );
+	return DistanceVisible( this, (SoldierHasLimitedVision(this) ? this->pathing.bDesiredDirection : DIRECTION_IRRELEVANT), DIRECTION_IRRELEVANT, sGridNo, bLevel, CoweringShockLevel(this), GetPercentTunnelVision(this));
 }
 
-INT16 DistanceVisible( SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir, INT32 sSubjectGridNo, INT8 bLevel )
+INT16 DistanceVisible(SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir, INT32 sSubjectGridNo, INT8 bLevel, const BOOLEAN& isCowering, const UINT8& tunnelVision)
 {
 	INT16	sDistVisible;
 	INT8	bLightLevel;
@@ -1284,7 +1284,7 @@ INT16 DistanceVisible( SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir,
 
 			if ( sDistVisible != STRAIGHT || ( fLimitedVision && (bFacingDir != bSubjectDir) ) )
 			{
-				tunnelVisionInPercent = GetPercentTunnelVision( pSoldier );				
+				tunnelVisionInPercent = tunnelVision;
 			}
 
 			sDistVisible *= 2;
@@ -1355,7 +1355,7 @@ INT16 DistanceVisible( SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir,
 			gGameExternalOptions.ubMaxSuppressionShock > 0 && sDistVisible > 0 )
 		{
 			// Make sure character is cowering.
-			if ( CoweringShockLevel(pSoldier) )
+			if (isCowering)
 			{
 				sDistVisible = __max(1,(sDistVisible * (gGameExternalOptions.ubMaxSuppressionShock - pSoldier->aiData.bShock)) / gGameExternalOptions.ubMaxSuppressionShock);
 			}
@@ -2097,7 +2097,7 @@ INT16 ManLooksForMan(SOLDIERTYPE *pSoldier, SOLDIERTYPE *pOpponent, UINT8 ubCall
 		// BIG NOTE: must use desdir instead of direction, since in a projected
 		// situation, the direction may still be changing if it's one of the first
 		// few animation steps when this guy's turn to do his stepped look comes up
-		sDistVisible = DistanceVisible(pSoldier,pSoldier->pathing.bDesiredDirection,bDir, pOpponent->sGridNo, pOpponent->pathing.bLevel );
+		sDistVisible = DistanceVisible(pSoldier, pSoldier->pathing.bDesiredDirection, bDir, pOpponent->sGridNo, pOpponent->pathing.bLevel, CoweringShockLevel(pSoldier), GetPercentTunnelVision(pSoldier));
 		//if (pSoldier->ubID == 0)
 		//sprintf(gDebugStr,"dist visible %d: my dir %d to him %d",sDistVisible,pSoldier->bDesiredDirection,bDir);
 	}
@@ -7464,7 +7464,7 @@ void CheckForAlertWhenEnemyDies( SOLDIERTYPE * pDyingSoldier )
 
 			// distance we "see" then depends on the direction he is located from us
 			bDir = atan8(pSoldier->sX,pSoldier->sY,pDyingSoldier->sX,pDyingSoldier->sY);
-			sDistVisible = DistanceVisible( pSoldier, pSoldier->pathing.bDesiredDirection, bDir, pDyingSoldier->sGridNo, pDyingSoldier->pathing.bLevel );
+			sDistVisible = DistanceVisible( pSoldier, pSoldier->pathing.bDesiredDirection, bDir, pDyingSoldier->sGridNo, pDyingSoldier->pathing.bLevel, CoweringShockLevel(pSoldier), GetPercentTunnelVision(pSoldier));
 			sDistAway = PythSpacesAway( pSoldier->sGridNo, pDyingSoldier->sGridNo );
 
 			// if we see close enough to see the soldier

Tactical/opplist.h

@@ -119,7 +119,7 @@ void AddOneOpponent(SOLDIERTYPE *pSoldier);
 void RemoveOneOpponent(SOLDIERTYPE *pSoldier);
 void UpdatePersonal(SOLDIERTYPE *pSoldier, UINT8 ubID, INT8 bNewOpplist, INT32 sGridNo, INT8 bLevel);
 INT16 MaxNormalDistanceVisible( void );
-INT16 DistanceVisible( SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir, INT32 sSubjectGridNo, INT8 bLevel );
+INT16 DistanceVisible( SOLDIERTYPE *pSoldier, INT8 bFacingDir, INT8 bSubjectDir, INT32 sSubjectGridNo, INT8 bLevel, const BOOLEAN& isCowering, const UINT8& tunnelVision);
 void ResetLastKnownLocs(SOLDIERTYPE *ptr);
 void RecalculateOppCntsDueToNoLongerNeutral( SOLDIERTYPE * pSoldier );
 void ReevaluateBestSightingPosition( SOLDIERTYPE * pSoldier, INT8 bInterruptDuelPts );