Enabled AI to use unarmed attack when switching weapons

Added build folders to gitignore.

.gitignore

@@ -53,8 +53,10 @@ nb-configuration.xml
 # Build results
 [Dd]ebug/
 [Dd]ebugPublic/
+[Dd]evXP/
 [Rr]elease/
 [Rr]eleases/
+[Ww]in2K/
 x64/
 x86/
 build/

sfall/AI.cpp

@@ -276,7 +276,14 @@ static long __fastcall ai_try_attack_switch_fix(TGameObj* target, long &hitMode,
 		}
 		return 1; // all good, execute vanilla behavior of ai_switch_weapons_ function
 	}
+
 	// no other weapon in inventory
+	if (weapon) {
+		if (fo_item_w_range(source, ATKTYPE_PUNCH) >= fo_obj_dist(source, target)) {
+			hitMode = ATKTYPE_PUNCH;
+			return 0; // change hit mode, continue attack cycle
+		}
+	}
 	return (weapon) ? -1 // exit, NPC has a weapon in hand slot, so we don't look for another weapon on the map
 	                : 1; // no weapon in inventory or hand slot, continue to search weapons on the map (call ai_switch_weapons_)
 }
@@ -544,6 +551,8 @@ static void __declspec(naked) ai_try_attack_hack_check_safe_weapon() {
 	}
 }
 
+////////////////////////////////////////////////////////////////////////////////
+
 static void __fastcall CombatAttackHook(TGameObj* source, TGameObj* target) {
 	sources[target] = source; // who attacked the 'target' from the last time
 	targets[source] = target; // who was attacked by the 'source' from the last time

sfall/Define.h

@@ -278,15 +278,24 @@ enum ArtType : char
 // Some FO2 PIDs possibly used by engine
 enum ProtoID : unsigned long
 {
+	PID_POWERED_ARMOR = 3,
 	PID_STIMPAK = 40,
+	PID_BOTTLE_CAPS = 41,
 	PID_DYNAMITE = 51,
+	PID_GEIGER_COUNTER = 52,
+	PID_STEALTH_BOY = 54,
 	PID_MOTION_SENSOR = 59,
 	PID_PLASTIC_EXPLOSIVES = 85,
 	PID_SUPER_STIMPAK = 144,
+	PID_ACTIVE_DYNAMITE = 206,
 	PID_ACTIVE_GEIGER_COUNTER = 207,
+	PID_ACTIVE_PLASTIC_EXPLOSIVE = 209,
 	PID_ACTIVE_STEALTH_BOY = 210,
+	PID_HARDENED_POWER_ARMOR = 232,
 	PID_JET = 259,
 	PID_HEALING_POWDER = 273,
+	PID_ADVANCED_POWER_ARMOR = 348,
+	PID_ADVANCED_POWER_ARMOR_MK2 = 349,
 	PID_SOLAR_SCORCHER = 390,
 	PID_CAR_TRUNK = 455,
 	PID_JESSE_CONTAINER = 467,