Fix transferring active Stim ability to Titan and endless stim effects (R2Northstar#864)

Fix endless Stim ability not playing loop sound and visual effects.
Fix transferring active Pilot Stim ability to Titan when embarking it.
Fix transferring active timed Stim ability to Titan.

Author: Gazyi

Northstar.Custom/mod/scripts/vscripts/weapons/sh_stim.gnut

@@ -40,20 +40,23 @@ void function StimPlayer( entity player, float duration, float severity = STIM_E
 
 void function StimPlayer_Internal( entity player, float duration, float effectSeverity )
 {
-	int endlessStatusEffectHandle = 0
+	// Handles for tracking status effects
+	int statusEffectHandle_SpeedBoost = 0
+	int statusEffectHandle_StimVFX = 0
 	if ( duration == USE_TIME_INFINITE )
 	{
-		endlessStatusEffectHandle = StatusEffect_AddEndless( player, eStatusEffect.speed_boost, effectSeverity )
+		statusEffectHandle_SpeedBoost = StatusEffect_AddEndless( player, eStatusEffect.speed_boost, effectSeverity )
+		statusEffectHandle_StimVFX = StatusEffect_AddEndless( player, eStatusEffect.stim_visual_effect, 1.0 )
 	}
 	else
 	{
-		StatusEffect_AddTimed( player, eStatusEffect.speed_boost, effectSeverity, duration + 0.5, 0.25 ) // sound is slightly off
-		StatusEffect_AddTimed( player, eStatusEffect.stim_visual_effect, 1.0, duration, duration )
+		statusEffectHandle_SpeedBoost = StatusEffect_AddTimed( player, eStatusEffect.speed_boost, effectSeverity, duration + 0.5, 0.25 ) // sound is slightly off
+		statusEffectHandle_StimVFX = StatusEffect_AddTimed( player, eStatusEffect.stim_visual_effect, 1.0, duration, duration )
 	}
 
 #if SERVER
-	thread StimThink( player, duration, endlessStatusEffectHandle )
-#else
+	thread StimThink( player, duration, statusEffectHandle_SpeedBoost, statusEffectHandle_StimVFX )
+#else // CLIENT
 	entity cockpit = player.GetCockpit()
 	if ( !IsValid( cockpit ) )
 		return
@@ -63,15 +66,25 @@ void function StimPlayer_Internal( entity player, float duration, float effectSe
 }
 
 #if SERVER
-void function StimThink( entity player, float duration, int endlessStatusEffectHandle )
+void function StimThink( entity player, float duration, int statusEffectHandle_SpeedBoost, int statusEffectHandle_StimVFX )
 {
 	player.EndSignal( "OnDeath" )
 	player.EndSignal( "OnChangedPlayerClass" )
-	if ( endlessStatusEffectHandle != 0 )
-		player.EndSignal( "StopEndlessStim" )
+	player.EndSignal( "player_embarks_titan" ) // Prevent transferring active Stim ability to Titan.
 
-	EmitSoundOnEntityOnlyToPlayer( player, player, "pilot_stimpack_loop_1P" )
-	EmitSoundOnEntityExceptToPlayer( player, player, "pilot_stimpack_loop_3P" )
+	if ( duration == USE_TIME_INFINITE )
+	{
+		player.EndSignal( "StopEndlessStim" )
+		// TF|2 stim loop sounds don't actually loop, use TF|1 loop sound.
+		// TF|1 sound is very quiet, is there a way to boost its volume (it has 300% volume in TF|1), except playing 3 sounds at once?
+		// BUG: It still stops playing sometimes for whatever reason ( Too many sounds? )
+		EmitSoundOnEntity( player, "Pilot_Stimpack_Loop" )
+	}
+	else
+	{
+		EmitSoundOnEntityOnlyToPlayer( player, player, "pilot_stimpack_loop_1P" )
+		EmitSoundOnEntityExceptToPlayer( player, player, "pilot_stimpack_loop_3P" )
+	}
 
 	int attachmentIndex = player.LookupAttachment( "CHESTFOCUS" )
 
@@ -82,19 +95,29 @@ void function StimThink( entity player, float duration, int endlessStatusEffectH
 	//thread StimSlowmoAim( player, duration )
 
 	OnThreadEnd(
-		function() : ( player, stimFX, endlessStatusEffectHandle )
+		function() : ( player, duration, stimFX, statusEffectHandle_SpeedBoost, statusEffectHandle_StimVFX )
 		{
 			if ( !IsValid( player ) )
 				return
 
 			if ( IsValid( stimFX ) )
 				EffectStop( stimFX )
 
-			StopSoundOnEntity( player, "pilot_stimpack_loop_1P" )
-			StopSoundOnEntity( player, "pilot_stimpack_loop_3P" )
-
-			if ( endlessStatusEffectHandle != 0 )
-				StatusEffect_Stop( player, endlessStatusEffectHandle )
+			if ( duration == USE_TIME_INFINITE )
+			{
+				StopSoundOnEntity( player, "Pilot_Stimpack_Loop" )
+			}
+			else
+			{
+				StopSoundOnEntity( player, "pilot_stimpack_loop_1P" )
+				StopSoundOnEntity( player, "pilot_stimpack_loop_3P" )
+			}
+
+			if ( statusEffectHandle_SpeedBoost != 0 )
+				StatusEffect_Stop( player, statusEffectHandle_SpeedBoost )
+			
+			if ( statusEffectHandle_StimVFX != 0 )
+				StatusEffect_Stop( player, statusEffectHandle_StimVFX )
 
 			player.Signal( "EndStim" )
 		}
@@ -111,7 +134,7 @@ void function StimThink( entity player, float duration, int endlessStatusEffectH
 	wait 2.0
 }
 
-#else // #if SERVER
+#else // CLIENT
 void function StimVisualsEnabled( entity ent, int statusEffect, bool actuallyChanged )
 {
 	if ( ent != GetLocalViewPlayer() )
@@ -164,4 +187,4 @@ void function StimScreenFXThink( entity player, int fxHandle, entity cockpit )
 	}
 }
 
-#endif // #else // #if SERVER
+#endif