From f67c28fe96abe274452829420c1900dd229d7cd2 Mon Sep 17 00:00:00 2001
From: Pedro Gomes <pedro.gomes@wavefunctionvr.com>
Date: Sun, 28 Sep 2025 21:10:46 +0100
Subject: [PATCH] Event Driven Broker

---
 Assets/Scripts/AbilitySystem/DamageType.cs    |  7 +++
 Assets/Scripts/EventDrivenHooks.meta          |  8 +++
 .../EventDrivenHooks/EntityEventBroker.cs     | 63 +++++++++++++++++++
 .../EntityEventBroker.cs.meta                 |  2 +
 .../EventDrivenHooks/EventBrokerArgs.cs       | 14 +++++
 .../EventDrivenHooks/EventBrokerArgs.cs.meta  |  2 +
 6 files changed, 96 insertions(+)
 create mode 100644 Assets/Scripts/EventDrivenHooks.meta
 create mode 100644 Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs
 create mode 100644 Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs.meta
 create mode 100644 Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs
 create mode 100644 Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs.meta

diff --git a/Assets/Scripts/AbilitySystem/DamageType.cs b/Assets/Scripts/AbilitySystem/DamageType.cs
index 113c4251..a0ad0873 100644
--- a/Assets/Scripts/AbilitySystem/DamageType.cs
+++ b/Assets/Scripts/AbilitySystem/DamageType.cs
@@ -5,3 +5,10 @@ public enum DamageType
     Attack,
     Spell,
 }
+
+[System.Serializable]
+public enum DamageApplicationMethod
+{
+    Hit,
+    Tick
+}
\ No newline at end of file
diff --git a/Assets/Scripts/EventDrivenHooks.meta b/Assets/Scripts/EventDrivenHooks.meta
new file mode 100644
index 00000000..e6d4bedb
--- /dev/null
+++ b/Assets/Scripts/EventDrivenHooks.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 52c2c97a7fdbe454e9c104a1db581634
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs b/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs
new file mode 100644
index 00000000..bd28fc7a
--- /dev/null
+++ b/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+
+public class EntityEventBroker : MonoBehaviour
+{
+    public OrderedEvent<DamageArgs> OnOutgoingDamage = new OrderedEvent<DamageArgs>();
+
+    public OrderedEvent<DamageArgs> OnIncomingDamage = new OrderedEvent<DamageArgs>();
+}
+
+
+// A robust, orderable event system for delegates with priority support
+public class OrderedEvent<T>
+{
+    private class Subscriber
+    {
+        public int Priority;
+        public Action<T> Handler;
+    }
+
+    private List<Subscriber> subscribers = new List<Subscriber>();
+
+    public void Subscribe(Action<T> handler, int priority = 0)
+    {
+        if (handler == null) return;
+        subscribers.Add(new Subscriber { Priority = priority, Handler = handler });
+        subscribers.Sort((a, b) => a.Priority.CompareTo(b.Priority));
+    }
+
+    public void Unsubscribe(Action<T> handler)
+    {
+        subscribers.RemoveAll(s => s.Handler == handler);
+    }
+
+    public void Invoke(T args)
+    {
+        foreach (var sub in subscribers)
+        {
+            sub.Handler.Invoke(args);
+        }
+    }
+}
+
+
+//Example usage:
+
+/*public class FireHelmetEffect : MonoBehaviour
+{
+    public EntityEventBroker broker;
+    void OnEnable() {
+        // Priority 10, runs after lower numbers
+        broker.OnOutgoingDamage.Subscribe(OnModifyDamage, priority: 10);
+    }
+    void OnDisable() {
+        broker.OnOutgoingDamage.Unsubscribe(OnModifyDamage);
+    }
+    void OnModifyDamage(DamageArgs args) {
+        args.damageType = DamageType.Fire;
+        args.currentValue *= 1.5f;
+    }
+}*/
\ No newline at end of file
diff --git a/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs.meta b/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs.meta
new file mode 100644
index 00000000..4a529424
--- /dev/null
+++ b/Assets/Scripts/EventDrivenHooks/EntityEventBroker.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 45e09b6617beed447a13265764139f69
\ No newline at end of file
diff --git a/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs b/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs
new file mode 100644
index 00000000..5607cff5
--- /dev/null
+++ b/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+
+
+public class DamageArgs
+{
+    public Taggable user;
+    public List<Taggable> targets;
+    public float currentValue;
+    public DamageType damageType;
+    public DamageApplicationMethod applicationMethod;
+    public bool isCrit;
+}
\ No newline at end of file
diff --git a/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs.meta b/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs.meta
new file mode 100644
index 00000000..dc7eba27
--- /dev/null
+++ b/Assets/Scripts/EventDrivenHooks/EventBrokerArgs.cs.meta
@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: 6bfae0d27b1543948886b9ee5f166c2c
\ No newline at end of file