Added Background Music

Mine2d/engine/AudioPlayer.cs

@@ -5,6 +5,13 @@ public enum Sound
     BlockHit,
     BlockBreak,
     ItemPickup,
+    MusicLoop,
+    Step0,
+    Step1,
+    Step2,
+    Step3,
+    Step4,
+    Step5,
 }
 
 public class AudioPlayer

Mine2d/game/backend/interactor/Audio.cs

@@ -1,6 +1,7 @@
 using Mine2d.engine;
 using Mine2d.engine.system.annotations;
 using Mine2d.game.backend.network.packets;
+using Mine2d.game.core;
 
 namespace Mine2d.game.backend.interactor;
 
@@ -13,4 +14,35 @@ public class Audio
         var ctx = Context.Get();
         ctx.GameAudio.Play(Sound.BlockBreak);
     }
+
+    [Interaction(InteractorKind.Client, PacketType.Tick)]
+    public static void Tick()
+    {
+        var ctx = Context.Get();
+        if (ctx.FrontendGameState.NextMusicPlay < DateTime.Now)
+        {
+            ctx.GameAudio.Play(Sound.MusicLoop);
+            ctx.FrontendGameState.NextMusicPlay = DateTime.Now.AddSeconds(130);
+        }
+        if (false && ctx.FrontendGameState.NextStepPlay < DateTime.Now && PlayerEntity.GetSelf().PlayerMovementState.CurrentVelocity != Vector2.Zero)
+        {
+            ctx.GameAudio.Play(GetRandomStepSound());
+            ctx.FrontendGameState.NextStepPlay = DateTime.Now.AddSeconds(0.2);
+        }
+    }
+
+    private static Sound GetRandomStepSound()
+    {
+        var sound = new Random().NextInt64(0, 6);
+        return sound switch
+        {
+            0 => Sound.Step0,
+            1 => Sound.Step1,
+            2 => Sound.Step2,
+            3 => Sound.Step3,
+            4 => Sound.Step4,
+            5 => Sound.Step5,
+            _ => Sound.Step0
+        };
+    }
 }

Mine2d/game/frontend/GameAudio.cs

@@ -12,6 +12,13 @@ public class GameAudio
         this.audioPlayer.Register(Sound.BlockBreak, "assets.audio.block_break.wav");
         this.audioPlayer.Register(Sound.BlockHit, "assets.audio.block_hit_alt.wav");
         this.audioPlayer.Register(Sound.ItemPickup, "assets.audio.item_pickup.wav");
+        this.audioPlayer.Register(Sound.MusicLoop, "assets.audio.music-loop.wav");
+        this.audioPlayer.Register(Sound.Step0, "assets.audio.step0.wav");
+        this.audioPlayer.Register(Sound.Step1, "assets.audio.step1.wav");
+        this.audioPlayer.Register(Sound.Step2, "assets.audio.step2.wav");
+        this.audioPlayer.Register(Sound.Step3, "assets.audio.step3.wav");
+        this.audioPlayer.Register(Sound.Step4, "assets.audio.step4.wav");
+        this.audioPlayer.Register(Sound.Step5, "assets.audio.step5.wav");
     }
 
     public void Play(Sound sound)

Mine2d/game/state/FrontendGameState.cs

@@ -20,6 +20,8 @@ public class FrontendGameState
     public InventoryKind OpenInventory { get; set; } = InventoryKind.None;
     public InputState InputState { get; set; } = new();
     public DebugState DebugState { get; set; } = new();
+    public DateTime NextMusicPlay { get; set; } = DateTime.MinValue;
+    public DateTime NextStepPlay { get; set; } = DateTime.MinValue;
 }
 
 public class DebugState {