[FD] Stalker Changes Only (#372)

* Added Stalker Sprinting after taking sufficient damage / arc'd / near harvester

* Add correct weapons according to difficulty for Stalkers

2 files changed, 115 insertions, 5 deletions

diff --git a/Northstar.CustomServers/mod/scripts/vscripts/ai/_ai_stalker.gnut b/Northstar.CustomServers/mod/scripts/vscripts/ai/_ai_stalker.gnut
index f49560e0..29e235b5 100644
--- a/Northstar.CustomServers/mod/scripts/vscripts/ai/_ai_stalker.gnut
+++ b/Northstar.CustomServers/mod/scripts/vscripts/ai/_ai_stalker.gnut
@@ -2,6 +2,7 @@ global function AiStalker_Init
 global function GetDeathForce
 global function StalkerGearOverloads
 global function StalkerMeltingDown
+global function FDStalkerThink
 
 global function IsStalkerLimbBlownOff
 
@@ -157,6 +158,82 @@ void function StalkerOnDamaged_Internal( entity npc, var damageInfo )
 			npc.SetActivityModifier( ACT_MODIFIER_STAGGER, true )
 		}
 	}
+	if( GameRules_GetGameMode() == FD )
+		thread StalkerSprint( npc, damageInfo )
+}
+
+void function StalkerSprint( entity npc, var damageInfo )
+{
+	npc.EndSignal("OnDeath")
+	npc.EndSignal("OnDestroy")
+	float damage = DamageInfo_GetDamage( damageInfo )
+
+	if ( npc.GetHealth() - damage < 50 || npc.GetHealth() <= 80)
+	{
+		entity weapon = npc.GetActiveWeapon()
+		if (IsValid(weapon))
+			npc.TakeActiveWeapon() // when stalkers fall over on harvester they will randomly shoot their guns, we don't want that.
+		npc.EnableNPCMoveFlag( NPCMF_PREFER_SPRINT )
+		npc.SetCapabilityFlag( bits_CAP_MOVE_SHOOT | bits_CAP_WEAPON_RANGE_ATTACK1 | bits_CAP_AIM_GUN, false )
+		npc.SetNPCFlag( NPC_IGNORE_ALL, true )
+		npc.SetNPCFlag( NPC_DISABLE_SENSING, true )
+		npc.SetNoTarget( true )
+		npc.ClearMoveAnim()
+		npc.SetMoveAnim("sp_spectre_sprint_F")
+	}
+}
+
+void function FDStalkerThink( entity npc, entity generator )
+{
+	npc.EndSignal( "OnDeath" )
+	npc.EndSignal( "OnDestroy" )
+	generator.EndSignal( "OnDeath" )
+	generator.EndSignal( "OnDestroy" )
+	bool isSprinting = false
+	thread FDStalkerGetsStunned( npc , generator )
+	while (IsAlive(npc))
+	{
+		WaitFrame()
+
+		if ( DistanceSqr( npc.GetOrigin(), generator.GetOrigin() ) < (600 * 600) && !isSprinting)
+		{
+			entity weapon = npc.GetActiveWeapon()
+			if (IsValid(weapon))
+				npc.TakeActiveWeapon() // when stalkers fall over on harvester they will randomly shoot their guns, we don't want that.
+			npc.EnableNPCMoveFlag( NPCMF_PREFER_SPRINT )
+			npc.SetCapabilityFlag( bits_CAP_MOVE_SHOOT | bits_CAP_WEAPON_RANGE_ATTACK1 | bits_CAP_AIM_GUN, false )
+			npc.EnableNPCFlag( NPC_DISABLE_SENSING | NPC_IGNORE_ALL )
+			npc.ClearMoveAnim()
+			npc.SetMoveAnim("sp_spectre_sprint_F")
+			npc.SetNoTarget( true )
+			isSprinting = true
+		}
+
+		if ( DistanceSqr( npc.GetOrigin(), generator.GetOrigin() ) > (230 * 230) )
+			continue
+
+		break
+	}
+
+	thread StalkerGearOverloads( npc )
+}
+
+void function FDStalkerGetsStunned( entity npc , entity generator )
+{
+	npc.EndSignal( "OnDeath" )
+	npc.EndSignal( "OnDestroy" )
+	npc.WaitSignal( "ArcStunned" )
+	print("arc trapped...")
+
+	entity weapon = npc.GetActiveWeapon()
+	if (IsValid(weapon))
+		npc.TakeActiveWeapon() // when stalkers fall over on harvester they will randomly shoot their guns, we don't want that.
+	npc.EnableNPCMoveFlag( NPCMF_PREFER_SPRINT )
+	npc.SetCapabilityFlag( bits_CAP_MOVE_SHOOT | bits_CAP_WEAPON_RANGE_ATTACK1 | bits_CAP_AIM_GUN, false )
+	npc.EnableNPCFlag( NPC_DISABLE_SENSING | NPC_IGNORE_ALL )
+	npc.ClearMoveAnim()
+	npc.SetMoveAnim("sp_spectre_sprint_F")
+	npc.SetNoTarget( true ) // stop keeping track of any player and instead go for the harvester
 }
 
 bool function TryDismemberStalker( entity npc, var damageInfo, entity attacker, int hitGroup )
@@ -603,4 +680,4 @@ vector function GetDeathForce()
 	vector angles = <RandomFloatRange(-45,-75),RandomFloat(360),0>
 	vector forward = AnglesToForward( angles )
 	return forward * RandomFloatRange( 0.25, 0.75 )
-}
\ No newline at end of file
+}
diff --git a/Northstar.CustomServers/mod/scripts/vscripts/gamemodes/_gamemode_fd_events.nut b/Northstar.CustomServers/mod/scripts/vscripts/gamemodes/_gamemode_fd_events.nut
index 5a8996ec..af63aeee 100644
--- a/Northstar.CustomServers/mod/scripts/vscripts/gamemodes/_gamemode_fd_events.nut
+++ b/Northstar.CustomServers/mod/scripts/vscripts/gamemodes/_gamemode_fd_events.nut
@@ -483,6 +483,7 @@ void function spawnDroppodStalker(SmokeEvent smokeEvent,SpawnEvent spawnEvent,Wa
 
 	string squadName = MakeSquadName( TEAM_IMC, UniqueString( "ZiplineTable" ) )
 	array<entity> guys
+	int difficultyLevel = FD_GetDifficultyLevel()
 
 	for ( int i = 0; i < spawnEvent.spawnAmount; i++ )
 	{
@@ -491,16 +492,48 @@ void function spawnDroppodStalker(SmokeEvent smokeEvent,SpawnEvent spawnEvent,Wa
 		SetTeam( guy, TEAM_IMC )
 		guy.EnableNPCFlag(  NPC_ALLOW_INVESTIGATE | NPC_ALLOW_HAND_SIGNALS | NPC_ALLOW_FLEE )
 		guy.DisableNPCFlag( NPC_ALLOW_PATROL)
+		SetSpawnOption_AISettings( guy, "npc_stalker_fd" )
 		DispatchSpawn( guy )
 
 		SetSquad( guy, squadName )
+		guy.AssaultSetFightRadius( 0 ) // makes them keep moving instead of stopping to shoot you.
 		AddMinimapForHumans(guy)
+		file.spawnedNPCs.append(guy)
 		SetTargetName( guy, GetTargetNameForID(eFD_AITypeIDs.STALKER))
+		thread FDStalkerThink( guy , fd_harvester.harvester )
 		guys.append( guy )
-    }
+	}
 
-    ActivateFireteamDropPod( pod, guys )
-	thread SquadNav_Thread(guys,spawnEvent.route)
+	switch ( difficultyLevel )
+	{
+		case eFDDifficultyLevel.EASY:
+		case eFDDifficultyLevel.NORMAL: // easy and normal stalkers have no weapons
+			foreach(npc in guys)
+			{
+				npc.TakeActiveWeapon()
+				npc.SetNoTarget( false )
+				npc.EnableNPCFlag( NPC_DISABLE_SENSING | NPC_IGNORE_ALL )
+				npc.SetEnemy( fd_harvester.harvester )
+			}
+			break
+		case eFDDifficultyLevel.HARD:
+		case eFDDifficultyLevel.MASTER:
+		case eFDDifficultyLevel.INSANE: // give all EPGs
+			foreach(npc in guys)
+			{
+				npc.TakeActiveWeapon()
+				npc.GiveWeapon( "mp_weapon_epg", [] )
+				npc.SetActiveWeaponByName( "mp_weapon_epg" )
+			}
+			break
+
+		default:
+			unreachable
+
+	}
+
+	ActivateFireteamDropPod( pod, guys )
+	SquadNav_Thread(guys,spawnEvent.route)
 
 }
 
@@ -733,4 +766,4 @@ void function AddMinimapForHumans(entity human)
 	human.Minimap_AlwaysShow( TEAM_MILITIA, null )
 	human.Minimap_SetHeightTracking( true )
 	human.Minimap_SetCustomState( eMinimapObject_npc.AI_TDM_AI )
-}
\ No newline at end of file
+}