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diff --git a/game/server/ai_condition.h b/game/server/ai_condition.h
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:		The default shared conditions
+//
+// $Workfile:     $
+// $Date:         $
+//
+//-----------------------------------------------------------------------------
+// $Log: $
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef	CONDITION_H
+#define	CONDITION_H
+
+// NOTE: Changing this constant will break save files!!! (changes type of CAI_ScheduleBits)
+#ifndef MAX_CONDITIONS
+#define	MAX_CONDITIONS 32*8
+#endif
+
+//=========================================================
+// These are the default shared conditions
+//=========================================================
+enum SCOND_t 
+{
+	COND_NONE,				// A way for a function to return no condition to get
+	
+	COND_IN_PVS,
+	COND_IDLE_INTERRUPT,	// The schedule in question is a low priority idle, and therefore a candidate for translation into something else
+	
+	COND_LOW_PRIMARY_AMMO,
+	COND_NO_PRIMARY_AMMO,
+	COND_NO_SECONDARY_AMMO,
+	COND_NO_WEAPON,
+	COND_SEE_HATE,
+	COND_SEE_FEAR,
+	COND_SEE_DISLIKE,
+	COND_SEE_ENEMY,
+	COND_LOST_ENEMY,
+	COND_ENEMY_WENT_NULL,	// What most people think COND_LOST_ENEMY is: This condition is set in the edge case where you had an enemy last think, but don't have one this think.
+	COND_ENEMY_OCCLUDED,	// Can't see m_hEnemy
+	COND_TARGET_OCCLUDED,	// Can't see m_hTargetEnt
+	COND_HAVE_ENEMY_LOS,
+	COND_HAVE_TARGET_LOS,
+	COND_LIGHT_DAMAGE,
+	COND_HEAVY_DAMAGE,
+	COND_PHYSICS_DAMAGE,
+	COND_REPEATED_DAMAGE,	//  Damaged several times in a row
+
+	COND_CAN_RANGE_ATTACK1,	// Hitscan weapon only
+	COND_CAN_RANGE_ATTACK2,	// Grenade weapon only
+	COND_CAN_MELEE_ATTACK1,
+	COND_CAN_MELEE_ATTACK2,
+
+	COND_PROVOKED,
+	COND_NEW_ENEMY,
+
+	COND_ENEMY_TOO_FAR,		//	Can we get rid of this one!?!?
+	COND_ENEMY_FACING_ME,
+	COND_BEHIND_ENEMY,
+	COND_ENEMY_DEAD,
+	COND_ENEMY_UNREACHABLE,	// Not connected to me via node graph
+
+	COND_SEE_PLAYER,
+	COND_LOST_PLAYER,
+	COND_SEE_NEMESIS,
+	COND_TASK_FAILED,
+	COND_SCHEDULE_DONE,
+	COND_SMELL,
+	COND_TOO_CLOSE_TO_ATTACK, // FIXME: most of this next group are meaningless since they're shared between all attack checks!
+	COND_TOO_FAR_TO_ATTACK,
+	COND_NOT_FACING_ATTACK,
+	COND_WEAPON_HAS_LOS,
+	COND_WEAPON_BLOCKED_BY_FRIEND,	// Friend between weapon and target
+	COND_WEAPON_PLAYER_IN_SPREAD,	// Player in shooting direction
+	COND_WEAPON_PLAYER_NEAR_TARGET,	// Player near shooting position
+	COND_WEAPON_SIGHT_OCCLUDED,
+	COND_BETTER_WEAPON_AVAILABLE,
+	COND_HEALTH_ITEM_AVAILABLE,		// There's a healthkit available.
+	COND_GIVE_WAY,					// Another npc requested that I give way
+	COND_WAY_CLEAR,					// I no longer have to give way
+	COND_HEAR_DANGER,
+	COND_HEAR_THUMPER,
+	COND_HEAR_BUGBAIT,
+	COND_HEAR_COMBAT,
+	COND_HEAR_WORLD,
+	COND_HEAR_PLAYER,
+	COND_HEAR_BULLET_IMPACT,
+	COND_HEAR_PHYSICS_DANGER,
+	COND_HEAR_MOVE_AWAY,
+	COND_HEAR_SPOOKY,				// Zombies make this when Alyx is in darkness mode
+
+	COND_NO_HEAR_DANGER,			// Since we can't use ~CONDITION. Mutually exclusive with COND_HEAR_DANGER
+
+	COND_FLOATING_OFF_GROUND,
+
+	COND_MOBBED_BY_ENEMIES,			// Surrounded by a large number of enemies melee attacking me. (Zombies or Antlions, usually).
+
+	// Commander stuff
+	COND_RECEIVED_ORDERS,
+	COND_PLAYER_ADDED_TO_SQUAD,
+	COND_PLAYER_REMOVED_FROM_SQUAD,
+
+	COND_PLAYER_PUSHING,
+	COND_NPC_FREEZE,				// We received an npc_freeze command while we were unfrozen
+	COND_NPC_UNFREEZE,				// We received an npc_freeze command while we were frozen
+
+	// This is a talker condition, but done here because we need to handle it in base AI
+	// due to it's interaction with behaviors.
+	COND_TALKER_RESPOND_TO_QUESTION,
+	
+	COND_NO_CUSTOM_INTERRUPTS,		// Don't call BuildScheduleTestBits for this schedule. Used for schedules that must strictly control their interruptibility.
+
+	// ======================================
+	// IMPORTANT: This must be the last enum
+	// ======================================
+	LAST_SHARED_CONDITION	
+};
+
+#endif	//CONDITION_H