Damage System

Don't Be Afraid To Fall/Assets/Prefabs/Explosion.prefab

@@ -12,6 +12,7 @@ GameObject:
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   - component: {fileID: 9034781248440383854}
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   m_Name: Explosion
   m_TagString: Untagged
@@ -114,3 +115,16 @@ MonoBehaviour:
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Don't Be Afraid To Fall/Assets/Prefabs/Meteor.prefab

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   m_Layer: 9
   m_Name: Meteor
   m_TagString: Untagged
@@ -121,22 +122,6 @@ PolygonCollider2D:
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       - {x: 0.29, y: -0.10128546}
       - {x: 0.2787619, y: 0.15690452}
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 TrailRenderer:
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@@ -244,3 +229,32 @@ TrailRenderer:
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   m_Autodestruct: 1
   m_Emitting: 1
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+  m_RubblePrefab: {fileID: 4362927315812235910, guid: b70e9174981d32c40861eb95d6d1b357, type: 3}
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Don't Be Afraid To Fall/Assets/Scenes/Level.unity

@@ -138,6 +138,7 @@ GameObject:
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@@ -311,6 +312,34 @@ MonoBehaviour:
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+  m_Name: 
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+  m_Health: 1
+  m_OnDeath:
+    m_PersistentCalls:
+      m_Calls:
+      - m_Target: {fileID: 512397506}
+        m_TargetAssemblyTypeName: PlayerControls, Assembly-CSharp
+        m_MethodName: OnDeath
+        m_Mode: 1
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Don't Be Afraid To Fall/Assets/Scripts/Damage.meta

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Don't Be Afraid To Fall/Assets/Scripts/Damage/DamageDealer.cs

+using UnityEngine;
+
+public class DamageDealer : MonoBehaviour
+{
+    private static long nextId;
+
+    private static long AcquireId()
+    {
+        return nextId++;
+    }
+
+    [SerializeField]
+    private uint m_Damage;
+
+    public uint Damage { get => m_Damage; }
+    public long Id { get; set; } = -1;
+
+    private void Start()
+    {
+        if (Id == -1)
+        {
+            Id = AcquireId();
+        }
+    }
+}

Don't Be Afraid To Fall/Assets/Scripts/Damage/DamageDealer.cs.meta

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Don't Be Afraid To Fall/Assets/Scripts/Damage/DamageTaker.cs

+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+
+public class DamageTaker : MonoBehaviour
+{
+    [SerializeField] private uint m_Health;
+
+    public uint Health { get => m_Health; }
+    public bool Dead
+    {
+        get => Health == 0;
+    }
+
+    [SerializeField] private UnityEvent m_OnDeath;
+    private HashSet<long> m_DamageTaken;
+
+    private void Start()
+    {
+        m_DamageTaken = new HashSet<long>();
+    }
+
+    private void OnTriggerEnter2D(Collider2D collision)
+    {
+        if (Dead)
+        {
+            return;
+        }
+
+        var dealer = collision.gameObject.GetComponent<DamageDealer>();
+
+        if (dealer == null)
+        {
+            return;
+        }
+
+        if (m_DamageTaken.Contains(dealer.Id))
+        {
+            return;
+        }
+
+        if (m_Health <= dealer.Damage)
+        {
+            m_Health = 0;
+            m_OnDeath.Invoke();
+        }
+        else
+        {
+            m_Health -= dealer.Damage;
+            m_DamageTaken.Add(dealer.Id);
+        }
+    }
+}

Don't Be Afraid To Fall/Assets/Scripts/Damage/DamageTaker.cs.meta

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Don't Be Afraid To Fall/Assets/Scripts/Meteors/MeteorController.cs

@@ -10,11 +10,13 @@ public class MeteorController : MonoBehaviour
 
     private SpriteRenderer m_Sprite;
     private Collider2D m_Collider;
+    private DamageDealer m_Dealer;
 
     private void Start()
     {
         m_Sprite = GetComponent<SpriteRenderer>();
         m_Collider = GetComponent<Collider2D>();
+        m_Dealer = GetComponent<DamageDealer>();
 
         m_Direction.Normalize();
     }
@@ -55,7 +57,7 @@ public class MeteorController : MonoBehaviour
 
     private void Explode()
     {
-        SpawnExplosion(gameObject.transform.position, 2f, 4f, gameObject.transform.parent);
+        SpawnExplosion(gameObject.transform.position, 2f, 4f, gameObject.transform.parent, m_Dealer);
         SpawnRubble(3, gameObject.transform.position, m_Collider.bounds.extents, 300f, gameObject.transform.parent);
 
         Disappear();
@@ -67,7 +69,7 @@ public class MeteorController : MonoBehaviour
         m_Collider.enabled = false;
     }
 
-    private void SpawnExplosion(Vector2 position, float maxScale, float growthRate, Transform parent)
+    private void SpawnExplosion(Vector2 position, float maxScale, float growthRate, Transform parent, DamageDealer sharedDealer)
     {
         var explosion = Instantiate(m_ExplosionPrefab, position, Quaternion.identity, parent);
 
@@ -75,6 +77,10 @@ public class MeteorController : MonoBehaviour
 
         controller.m_MaxScale = maxScale;
         controller.m_GrowthRate = growthRate;
+
+        var dealer = explosion.GetComponent<DamageDealer>();
+
+        dealer.Id = sharedDealer.Id;
     }
 
     private void SpawnRubble(uint count, Vector2 basePosition, Vector2 bbox, float force, Transform parent)

Don't Be Afraid To Fall/Assets/Scripts/Player/PlayerControls.cs

@@ -13,4 +13,9 @@ public class PlayerControls : MonoBehaviour
     {
         m_Controller.Move(Input.GetAxis("Horizontal"), Input.GetButton("Jump"));
     }
+
+    public void OnDeath()
+    {
+        Debug.Log("Dead");
+    }
 }