feat: Apply an audio effect to every manageable audio on a gameobject

A new AudioManager Method triggers a signal which is received by every
ManageableAudio instance. If the causer of the signal is the same transform as the parent of the ManageableAudio, a change in AudioEffects is caused.

Assets/Prefabs/Audio/Boost Sound 1.prefab

@@ -11,6 +11,7 @@ GameObject:
   - component: {fileID: 6423719894035945655}
   - component: {fileID: 3310727599597512245}
   - component: {fileID: 7696877450501702533}
+  - component: {fileID: 6827936618995316794}
   m_Layer: 0
   m_Name: Boost Sound 1
   m_TagString: Untagged
@@ -61,7 +62,7 @@ AudioSource:
   OutputAudioMixerGroup: {fileID: 0}
   m_audioClip: {fileID: 8300000, guid: d6edf602b3baa0741bd59cce098f05d5, type: 3}
   m_PlayOnAwake: 0
-  m_Volume: 0.09
+  m_Volume: 0.07
   m_Pitch: 0.9
   Loop: 0
   Mute: 0
@@ -145,3 +146,28 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
+--- !u!169 &6827936618995316794
+AudioLowPassFilter:
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+  m_GameObject: {fileID: 4479628772504131522}
+  m_Enabled: 1
+  serializedVersion: 3
+  m_LowpassResonanceQ: 1
+  lowpassLevelCustomCurve:
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+    m_Curve:
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+      time: 0
+      value: 0.06775807
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+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4

Assets/Prefabs/Audio/Critical Tackle 1.prefab

@@ -11,6 +11,7 @@ GameObject:
   - component: {fileID: 6423719894035945655}
   - component: {fileID: 3310727599597512245}
   - component: {fileID: 7696877450501702533}
+  - component: {fileID: 4941378086240168845}
   m_Layer: 0
   m_Name: Critical Tackle 1
   m_TagString: Untagged
@@ -62,7 +63,7 @@ AudioSource:
   m_audioClip: {fileID: 8300000, guid: 029b2e37eed317c49841bf21a7a69233, type: 3}
   m_PlayOnAwake: 0
   m_Volume: 0.2
-  m_Pitch: 1
+  m_Pitch: 1.2
   Loop: 0
   Mute: 0
   Spatialize: 0
@@ -145,3 +146,28 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
+--- !u!169 &4941378086240168845
+AudioLowPassFilter:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 4479628772504131522}
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+  serializedVersion: 3
+  m_LowpassResonanceQ: 1
+  lowpassLevelCustomCurve:
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+      time: 0
+      value: 0.13597089
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+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4

Assets/Prefabs/Audio/Main Menu Music.prefab

@@ -47,6 +47,8 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   id: 1
   audioTag: main_menu_music
+  pitchRange: 0.3
+  volumeRange: 0.3
 --- !u!82 &7696877450501702533
 AudioSource:
   m_ObjectHideFlags: 0
@@ -60,7 +62,7 @@ AudioSource:
   m_audioClip: {fileID: 8300000, guid: f03afcd094e19824e8549f6fec3655ef, type: 3}
   m_PlayOnAwake: 0
   m_Volume: 0.092
-  m_Pitch: 0.95
+  m_Pitch: 1.13
   Loop: 0
   Mute: 0
   Spatialize: 0

Assets/Prefabs/Audio/Normal Tackle 1.prefab

@@ -11,6 +11,7 @@ GameObject:
   - component: {fileID: 6423719894035945655}
   - component: {fileID: 3310727599597512245}
   - component: {fileID: 7696877450501702533}
+  - component: {fileID: 6298175476027011211}
   m_Layer: 0
   m_Name: Normal Tackle 1
   m_TagString: Untagged
@@ -145,3 +146,28 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
+--- !u!169 &6298175476027011211
+AudioLowPassFilter:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 4479628772504131522}
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+  lowpassLevelCustomCurve:
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+      weightedMode: 0
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+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4

Assets/Prefabs/Audio/Thruster Sound 1.prefab

@@ -11,6 +11,7 @@ GameObject:
   - component: {fileID: 6423719894035945655}
   - component: {fileID: 3310727599597512245}
   - component: {fileID: 7696877450501702533}
+  - component: {fileID: 7797534259601864668}
   m_Layer: 0
   m_Name: Thruster Sound 1
   m_TagString: Untagged
@@ -47,7 +48,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   id: 1
   audioTag: thruster
-  pitchRange: 0.4
+  pitchRange: 0.5
   volumeRange: 0.3
 --- !u!82 &7696877450501702533
 AudioSource:
@@ -63,7 +64,7 @@ AudioSource:
   m_PlayOnAwake: 0
   m_Volume: 0.08
   m_Pitch: 1
-  Loop: 0
+  Loop: 1
   Mute: 0
   Spatialize: 0
   SpatializePostEffects: 0
@@ -145,3 +146,28 @@ AudioSource:
     m_PreInfinity: 2
     m_PostInfinity: 2
     m_RotationOrder: 4
+--- !u!169 &7797534259601864668
+AudioLowPassFilter:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 4479628772504131522}
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+  m_LowpassResonanceQ: 1
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+      value: 0.045020465
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+      weightedMode: 0
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+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4

Assets/Prefabs/Audio/Zone Change In.prefab

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Assets/Prefabs/Audio/Zone Change In.prefab.meta

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Assets/Prefabs/Audio/Zone Change Out.prefab

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Assets/Prefabs/Audio/Zone Change Out.prefab.meta

@@ -0,0 +1,7 @@
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Assets/Scripts/ManageableAudio.cs

@@ -1,12 +1,19 @@
+using System;
 using System.Collections;
 using System.Collections.Generic;
 using System.ComponentModel;
 using System.Reflection;
 using log4net;
+using Managers;
 using PrimeTween;
 using Unity.VisualScripting;
 using UnityEngine;
 
+public enum AudioEffects
+{
+	LowPass
+}
+
 public class ManageableAudio : MonoBehaviour
 {
 	private static ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
@@ -39,6 +46,11 @@ public class ManageableAudio : MonoBehaviour
 		}
 	}
 
+	void Start()
+	{
+		AudioManager.G.AudioEffectBroadcasted += SwitchAudioEffect;
+	}
+
 	/// <summary>
 	/// Start playing the sound source.
 	/// </summary>
@@ -131,4 +143,31 @@ public class ManageableAudio : MonoBehaviour
 			WasOneShotTriggered = false;
 		}
 	}
+
+	public void SwitchAudioEffect(AudioEffectBroadCastEventArgs args)
+	{
+		if (args.AffectedParent != transform.parent)
+		{
+			return;
+		}
+		switch (args.Effect)
+		{
+			case AudioEffects.LowPass:
+				SwitchLowPassFilter(args.Activate);
+				break;
+		}
+	}
+
+	public void SwitchLowPassFilter(bool activate)
+	{
+		if (TryGetComponent(out AudioLowPassFilter filter))
+		{
+			filter.enabled = activate;
+		}
+	}
+
+	void OnDestroy()
+	{
+		AudioManager.G.AudioEffectBroadcasted -= SwitchAudioEffect;
+	}
 }

Assets/Scripts/Managers/AudioManager.cs

@@ -21,6 +21,9 @@ namespace Managers
 		private Dictionary<ManageableAudio, GameObject> audioDictionary =
 			new Dictionary<ManageableAudio, GameObject>();
 
+		public delegate void OnAudioEffectBroadcast(AudioEffectBroadCastEventArgs args);
+		public event OnAudioEffectBroadcast AudioEffectBroadcasted;
+
 		// Start is called before the first frame update
 		void Awake()
 		{
@@ -197,6 +200,22 @@ namespace Managers
 
 		}
 
+		public void BroadcastAudioEffect(AudioEffects effect, Transform t, bool activate)
+		{
+			AudioEffectBroadcasted.Invoke(new AudioEffectBroadCastEventArgs
+			{
+				AffectedParent = t,
+				Effect = effect,
+				Activate = activate
+			});
+		}
+
+	}
+	public class AudioEffectBroadCastEventArgs : EventArgs
+	{
+		public Transform AffectedParent { get; set; }
+		public AudioEffects Effect { get; set; }
+		public bool Activate { get; set; }
 	}
 
 }

Assets/Scripts/Managers/MatchManager.cs

@@ -9,6 +9,40 @@ using UnityEngine;
 using GameLogic;
 using System.Threading.Tasks;
 
+/// <summary>
+/// States the match can be in.
+/// </summary>
+public enum MatchState
+{
+	CharacterSelect,
+	Pause,
+	Starting,
+	Match,
+	End
+}
+
+/// <summary>
+/// Update data relevant to this matches rules.
+/// </summary>
+public class MatchConditionUpdate
+{
+	public WinCondition Condition { get; set; }
+	public Ship Ship { get; set; }
+	public int Count { get; set; }
+}
+
+/// <summary>
+/// The properties a player is assigned at the start
+/// of the match, according to the rules.
+/// </summary>
+public class MatchPlayerStatistic
+{
+	public bool IsOut { get; set; }
+	public int Lives { get; set; }
+	public int Score { get; set; }
+	public int Time { get; set; }
+}
+
 namespace Managers
 {
 	/// <summary>
@@ -79,24 +113,24 @@ namespace Managers
 			Player updatedPlayer = null;
 			foreach (Player p in matchPlayers)
 			{
-				if (p.character.shipName == update.ship.props.shipName)
+				if (p.character.shipName == update.Ship.props.shipName)
 				{
 					updatedPlayer = p;
 					Log.Debug($"Players: {p.name} match statistic will be updated.");
 				}
 			}
 			// TODO: Match Result should contain progression over multiple rounds.
-			MatchResult mr = MatchLogic.UpdateMatchResult(updatedPlayer, update, matchPlayerStatistics);
+			MatchResult result = MatchLogic.UpdateMatchResult(updatedPlayer, update, matchPlayerStatistics);
-			if (updatedPlayer != null && mr != null)
+			if (updatedPlayer != null && result != null)
 			{
 				matchState = MatchState.End;
 				Log.Info("Match has ended, winner will be declared.");
 				// TODO: Take player decisions into account before restarting the match
 				// TODO: Include the statistics and match round progression in announcements
-				AnnounceWinner(mr);
+				AnnounceWinner(result);
 				return;
 			}
-			Log.Error($"Ship: {update.ship.props.shipName} does not belong to a player in this match."
+			Log.Error($"Ship: {update.Ship.props.shipName} does not belong to a player in this match."
 			+ " Can't update match.");
 		}
 
@@ -327,37 +361,3 @@ namespace Managers
 
 	}
 }
-
-/// <summary>
-/// States the match can be in.
-/// </summary>
-public enum MatchState
-{
-	CharacterSelect,
-	Pause,
-	Starting,
-	Match,
-	End
-}
-
-/// <summary>
-/// Update data relevant to this matches rules.
-/// </summary>
-public class MatchConditionUpdate
-{
-	public WinCondition Condition { get; set; }
-	public Ship ship { get; set; }
-	public int count { get; set; }
-}
-
-/// <summary>
-/// The properties a player is assigned at the start
-/// of the match, according to the rules.
-/// </summary>
-public class MatchPlayerStatistic
-{
-	public bool IsOut { get; set; }
-	public int Lives { get; set; }
-	public int Score { get; set; }
-	public int Time { get; set; }
-}

Assets/Scripts/MatchLogic.cs

@@ -24,13 +24,13 @@ namespace GameLogic
 			switch (args.Condition)
 			{
 				case WinCondition.Lives:
-					UpdateLives(mps[p], args.count);
+					UpdateLives(mps[p], args.Count);
 					break;
 				case WinCondition.Score:
-					UpdateScore(mps[p], args.count);
+					UpdateScore(mps[p], args.Count);
 					break;
 				case WinCondition.Time:
-					UpdateTime(mps[p], args.count);
+					UpdateTime(mps[p], args.Count);
 					break;
 			}
 			return DetectMatchResult(mps);

Assets/Scripts/PlayingFieldDetection.cs

@@ -13,9 +13,11 @@ public class PlayingFieldDetection : MonoBehaviour
 	/// <param name="collider"></param>
 	private void OnTriggerExit(Collider collider)
 	{
+		// TODO: This depends on a collider leaving the field which has only one
+		// instance with the same tag on the ship object.
 		if (collider.tag == "Ship")
 		{
-			if (!collider.TryGetComponent(out Ship ship))
+			if (!collider.TryGetComponent(out Ship shipComponent))
 			{
 				Log.Error($"Collider: {collider} was tagged as Ship, but has no Ship component.");
 				return;
@@ -23,8 +25,8 @@ public class PlayingFieldDetection : MonoBehaviour
 			MatchManager.G.UpdateMatchCondition(new MatchConditionUpdate
 			{
 				Condition = WinCondition.Lives,
-				ship = ship,
+				Ship = shipComponent,
-				count = -1
+				Count = -1
 			});
 		}
 	}

Assets/Scripts/Ship.cs

@@ -26,10 +26,13 @@ public class Ship : MonoBehaviour
 	private float tackledTime = 0f;
 	// Current Zone the player occupies
 	private Zone zone = Zone.NimbleZone;
+	// Upcoming zone change
+	private Zone newZone = Zone.NimbleZone;
 
 	private ManageableAudio ThrusterSound;
 	private ManageableAudio BoosterSound;
-	private ManageableAudio ZoneChangeSound;
+	private ManageableAudio LeaveZoneSound;
+	private ManageableAudio EnterZoneSound;
 	private ManageableAudio TackleOpponentSound;
 	private ManageableAudio CriticalTackleOpponentSound;
 	private ManageableAudio BeingTackledSound;
@@ -48,7 +51,8 @@ public class Ship : MonoBehaviour
 		BoosterSound = AudioManager.G.GetLocalSound("booster", 1, gameObject.transform);
 		BeingTackledSound = AudioManager.G.GetLocalSound("normal_tackle", 1, gameObject.transform);
 		BeingCriticallyTackledSound = AudioManager.G.GetLocalSound("critical_tackle", 1, gameObject.transform);
-		//ZoneChangeSound = AudioManager.G.GetLocalSound("thruster_sound", 1, gameObject.transform);
+		LeaveZoneSound = AudioManager.G.GetLocalSound("thruster_sound", 1, gameObject.transform);
+		EnterZoneSound = AudioManager.G.GetLocalSound("thruster_sound", 1, gameObject.transform);
 	}
 
 	// Start is called before the first frame update
@@ -94,12 +98,16 @@ public class Ship : MonoBehaviour
 		}
 		body.constraints = RigidbodyConstraints.None;
 		// TODO: This belongs in the state object
-		zone = forceManager.GetZoneOfInstance(InstanceID);
+		newZone = forceManager.GetZoneOfInstance(InstanceID);
 		//BoostStateUpdate(Time.deltaTime);
 		// Rotate the vehicle with the current steer velocity
 		// Calculate the magnitude of the acceleration with the current thrust
-		UpdateMovement();
 		UpdateSounds();
+		if (zone != newZone)
+		{
+			zone = newZone;
+		}
+		UpdateMovement();
 		BoostStateUpdate(Time.deltaTime);
 		UpdateTackleResponse(isCriticalTackle);
 	}
@@ -372,6 +380,19 @@ public class Ship : MonoBehaviour
 			BeingCriticallyTackledSound.ResetOneShot();
 			BeingTackledSound.ResetOneShot();
 		}
+		if (newZone != zone)
+		{
+			if (newZone != Zone.NimbleZone)
+			{
+				//LeaveZoneSound?.PlayAudio(false);
+				AudioManager.G.BroadcastAudioEffect(AudioEffects.LowPass, transform, true);
+			}
+			else
+			{
+				//EnterZoneSound?.PlayAudio(false);
+				AudioManager.G.BroadcastAudioEffect(AudioEffects.LowPass, transform, false);
+			}
+		}
 	}
 
 }