Give bullets to player on lvl up.

Assets/Prefabs/Player.prefab

@@ -169,8 +169,13 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   <CurrentHealth>k__BackingField: 4
   <MaxHealth>k__BackingField: 4
-  <AvailableBullets>k__BackingField:
+  <UnlockedBulletTypes>k__BackingField: []
+  <AvailableBulletTypes>k__BackingField:
   - {fileID: 11400000, guid: 905472c42630e43e9bbbd648e9d6e1d3, type: 2}
+  - {fileID: 11400000, guid: 77ff25d58ccf34aeab600974fbf652c2, type: 2}
+  - {fileID: 11400000, guid: 2dc5013f6011348ce9873fdabd751c6b, type: 2}
+  - {fileID: 11400000, guid: 6b9d746e74638481280040505dd07240, type: 2}
+  - {fileID: 11400000, guid: f9a8cf6d236504294b9d055e487f6904, type: 2}
   <CurrentBullet>k__BackingField: {fileID: 11400000, guid: 905472c42630e43e9bbbd648e9d6e1d3, type: 2}
   <CanShoot>k__BackingField: 1
   ui: {fileID: 0}
@@ -220,7 +225,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   <IsRhythmActive>k__BackingField: 1
   speed: 12
-  pityTime: 0.13
+  beatLeeway: 0.5
 --- !u!1001 &3192674581181291927
 PrefabInstance:
   m_ObjectHideFlags: 0

Assets/Scenes/Level 2.unity

@@ -7856,6 +7856,10 @@ PrefabInstance:
       propertyPath: <Offset>k__BackingField
       value: 0.0485
       objectReference: {fileID: 0}
+    - target: {fileID: 12744624317710530, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
+      propertyPath: level
+      value: 2
+      objectReference: {fileID: 0}
     - target: {fileID: 12744624317710531, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
       propertyPath: m_audioClip
       value: 

Assets/Scenes/Level 3.unity

@@ -5928,6 +5928,10 @@ PrefabInstance:
       propertyPath: <Offset>k__BackingField
       value: 0.036
       objectReference: {fileID: 0}
+    - target: {fileID: 12744624317710530, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
+      propertyPath: level
+      value: 3
+      objectReference: {fileID: 0}
     - target: {fileID: 12744624317710531, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
       propertyPath: m_audioClip
       value: 

Assets/Scenes/Level 4.unity

@@ -38,7 +38,7 @@ RenderSettings:
   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0.17307952, g: 0.21632008, b: 0.29832444, a: 1}
+  m_IndirectSpecularColor: {r: 0.173079, g: 0.21631923, b: 0.29832268, a: 1}
   m_UseRadianceAmbientProbe: 0
 --- !u!157 &3
 LightmapSettings:
@@ -19370,6 +19370,14 @@ PrefabInstance:
       propertyPath: <Offset>k__BackingField
       value: 0.0515
       objectReference: {fileID: 0}
+    - target: {fileID: 12744624317710530, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
+      propertyPath: level
+      value: 4
+      objectReference: {fileID: 0}
+    - target: {fileID: 12744624317710530, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
+      propertyPath: secondsTillSpawn
+      value: 4
+      objectReference: {fileID: 0}
     - target: {fileID: 12744624317710531, guid: 202027c59e52e421ab0aafec69ab8e16, type: 3}
       propertyPath: m_audioClip
       value: 

Assets/Scripts/GameManager.cs

@@ -9,26 +9,32 @@ public class GameManager : MonoBehaviour
 {
     [SerializeField] private Texture2D crosshairImg;
     [SerializeField] private GameObject panel;
-    
+
     [Header("Enemy settings")]
     [SerializeField] private GameObject enemyPrefab;
     [SerializeField] private int maxWidth = 10;
     [SerializeField] private int maxDistance = 5;
     [SerializeField] private float secondsTillSpawn = 3f;
     [SerializeField] private float percentToNextWave = .75f;
-
+
+    [Header("Level settings")]
+    [SerializeField] private int level = 1;
+
     private int _numberOfWaves;
     private int _constEnemies = 5;
     private bool _spawning = false;
-    private int _pause  = 0;
+    private int _pause = 0;
     private int _waveCount = 0;
     private int _waveConst = 3;
     private HudManager _ui;
+    private Player _player;
 
     private void Awake()
     {
         _numberOfWaves = _waveConst * (SceneManager.GetActiveScene().buildIndex - 2);
         _ui = GameObject.Find("HUD").GetComponent<HudManager>();
+        _player = GetComponentInChildren<Player>();
+        _player.UnlockBulletsForLevel(level);
     }
 
     private void Start()
@@ -48,7 +54,7 @@ private void Update()
             if (_pause == 0)
             {
                 PauseGame();
-            } 
+            }
             else
             {
                 ResumeGame();
@@ -68,17 +74,18 @@ private void CheckNoEnemies()
             NextWave();
         }
     }
-    
+
     private Vector3 GetRandomPosition()
     {
         while (true)
         {
-            var randomPosition = new Vector3(Random.Range(-maxWidth, maxWidth), 0.5f, Random.Range(-maxWidth, maxWidth));
+            var randomPosition =
+                new Vector3(Random.Range(-maxWidth, maxWidth), 0.5f, Random.Range(-maxWidth, maxWidth));
             var distance = Vector3.Distance(transform.position, randomPosition);
 
             if (distance < maxDistance)
             {
-                if (Physics.CheckSphere(randomPosition, 0.7f, (int) Layers.Floor))
+                if (Physics.CheckSphere(randomPosition, 0.7f, (int)Layers.Floor))
                 {
                     continue;
                 }
@@ -130,7 +137,7 @@ private void PauseGame()
         Time.timeScale = 0f;
         panel.SetActive(true);
     }
-    
+
     public void ResumeGame()
     {
         _pause = 0;
@@ -145,6 +152,6 @@ public void GoBackMain()
         PlayerPrefs.SetInt(PlayerPrefsKeys.GamePause, _pause);
         Time.timeScale = 1f;
         panel.SetActive(false);
-        SceneManager.LoadScene((int) Scenes.MainMenuScene);
+        SceneManager.LoadScene((int)Scenes.MainMenuScene);
     }
 }

Assets/Scripts/InputController.cs

@@ -67,31 +67,31 @@ private void HandleChangeBullet()
         BulletType newBullet = null;
         if (Input.GetKeyDown(SPrevBulletKey))
         {
-            var currentBulletIndex = _player.AvailableBullets.FindIndex(
+            var currentBulletIndex = _player.UnlockedBulletTypes.FindIndex(
                 bullet => bullet == _player.CurrentBullet
             );
 
             var nextIndex = currentBulletIndex - 1;
             if (nextIndex < 0)
             {
-                nextIndex = _player.AvailableBullets.Count - 1;
+                nextIndex = _player.UnlockedBulletTypes.Count - 1;
             }
-            newBullet = _player.AvailableBullets[nextIndex];
+            newBullet = _player.UnlockedBulletTypes[nextIndex];
         }
 
         if (Input.GetKeyDown(SNextBulletKey))
         {
-            var currentBulletIndex = _player.AvailableBullets.FindIndex(
+            var currentBulletIndex = _player.UnlockedBulletTypes.FindIndex(
                 bullet => bullet == _player.CurrentBullet
             );
 
             var nextIndex = currentBulletIndex + 1;
-            if (nextIndex >= _player.AvailableBullets.Count)
+            if (nextIndex >= _player.UnlockedBulletTypes.Count)
             {
                 nextIndex = 0;
             }
 
-            newBullet = _player.AvailableBullets[nextIndex];
+            newBullet = _player.UnlockedBulletTypes[nextIndex];
         }
 
         if (newBullet != null)

Assets/Scripts/Player.cs

@@ -11,7 +11,8 @@ public class Player : MonoBehaviour
 {
     [field: SerializeField] public float CurrentHealth { get; private set; } = 4;
     [field: SerializeField] public float MaxHealth { get; private set; } = 4;
-    [field: SerializeField] public List<BulletType> AvailableBullets { get; private set; } = new();
+    [field: SerializeField] public List<BulletType> UnlockedBulletTypes { get; private set; } = new();
+    [field: SerializeField] public List<BulletType> AvailableBulletTypes { get; private set; } = new();
     [field: SerializeField] public BulletType CurrentBullet { get; set; }
     [field: SerializeField] public bool CanShoot { get; set; }
 
@@ -99,7 +100,7 @@ private void CheckStatus()
             PlayerPrefs.SetInt(PlayerPrefsKeys.CurrentScene, SceneManager.GetActiveScene().buildIndex);
             PlayerPrefs.Save();
             Destroy(gameObject);
-            SceneManager.LoadScene((int) Scenes.GameOverMenu);
+            SceneManager.LoadScene((int)Scenes.GameOverMenu);
         }
     }
 
@@ -119,8 +120,11 @@ public void SetBullet(BulletType bulletType)
             );
     }
 
-    public void AddBullet(BulletType bulletType)
+    public void UnlockBulletsForLevel(int upToIndex)
     {
-        AvailableBullets.Add(bulletType);
+        for (int i = 0; i < upToIndex; i++)
+        {
+            UnlockedBulletTypes.Add(AvailableBulletTypes[i]);
+        }
     }
-}
+}

Assets/Scripts/UI/HudManager.cs

@@ -43,7 +43,7 @@ private void Update()
         {
             // TODO: It doesn't make sense to call these every frame. We should only call them in resposponse to some
             // event, such as when the player gets a new class of projectiles or they change the active ones.
-            AddBullets(Player.AvailableBullets);
+            AddBullets(Player.UnlockedBulletTypes);
             StartCoroutine(SelectBullet(Player.CurrentBullet));
         }