Removed old zombie AI code.

Improved AI path tweaks:
- tanks prefer moving in straight directions to avoid sliding effect
- combat jeeps prefer moving on roads (PAVED_ROAD, DIRT_ROAD)
- armed vehicles avoid moving into buildings (FLAT_FLOOR)
- increased value to avoid light and corpses for enemy soldiers

git-svn-id: https://ja2svn.mooo.com/source/ja2/trunk/GameSource/ja2_v1.13/Build@8770 3b4a5df2-a311-0410-b5c6-a8a6f20db521

Tactical/PATHAI.cpp

@@ -3851,20 +3851,29 @@ if(!GridNoOnVisibleWorldTile(iDestination))
 				nextCost += 50;
 			}			
 
-			// sevenfm: tanks prefer moving in straight directions to avoid sliding effect
+			if (gGameExternalOptions.fAIPathTweaks && s->bTeam != gbPlayerNum)
-			if (gGameExternalOptions.fAIPathTweaks && 
+			{
-				TANK(s) &&
+				// tanks prefer moving in straight directions to avoid sliding effect
-				(iCnt & 1))
+				if (TANK(s) && (iCnt & 1))
 				{
 					nextCost += 50;
 				}
 
-			// sevenfm: experimental path tweaks for AI
+				// combat jeeps prefer moving on roads
-			if (gGameExternalOptions.fAIPathTweaks &&
+				UINT8 ubTerrainType = GetTerrainTypeForGrid(newLoc, bLevel);				
-				s->bTeam != gbPlayerNum &&
+				if (COMBAT_JEEP(s) && ubTerrainType != PAVED_ROAD && ubTerrainType != DIRT_ROAD)
-				!(s->flags.uiStatusFlags & SOLDIER_BOXER) &&
+				{
-				!AreInMeanwhile() &&
+					nextCost += 20;
-				IS_MERC_BODY_TYPE(s))
+				}
+
+				// armed vehicles avoid moving into buildings
+				if (ARMED_VEHICLE(s) && ubTerrainType == FLAT_FLOOR)
+				{
+					nextCost += 20;
+				}
+
+				// experimental path tweaks for AI
+				if (IS_MERC_BODY_TYPE(s))
 				{
 					if (InGasSpot(s, newLoc, bLevel))
 					{
@@ -3878,10 +3887,8 @@ if(!GridNoOnVisibleWorldTile(iDestination))
 						s->aiData.bAlertStatus >= STATUS_RED &&
 						(InLightAtNight(newLoc, bLevel) || GetNearestRottingCorpseAIWarning(newLoc) > 0))
 					{
-					if (s->aiData.bAttitude == CUNNINGSOLO || s->aiData.bAttitude == CUNNINGAID || s->aiData.bAIMorale < MORALE_FEARLESS)
 						nextCost += 20;
-					else
+					}
-						nextCost += 10;
 				}
 			}			
 
@@ -4774,7 +4781,7 @@ INT32 PlotPath( SOLDIERTYPE *pSold, INT32 sDestGridNo, INT8 bCopyRoute, INT8 bPl
 						// STOMP traits - Stealthy trait decreases stealth AP modifier
 						if (gGameOptions.fNewTraitSystem && HAS_SKILL_TRAIT(pSold, STEALTHY_NT))
 						{
-							 sMovementAPsCost += max(0, (APBPConstants[AP_STEALTH_MODIFIER] * (100 - gSkillTraitValues.ubSTStealthModeSpeedBonus) / 100.0f) );
+							sMovementAPsCost += max(0.0f, (APBPConstants[AP_STEALTH_MODIFIER] * (100.0f - gSkillTraitValues.ubSTStealthModeSpeedBonus) / 100.0f));
 						}
 						else
 						{