From d945aea32211becbf6088f0362af06f894a384ee Mon Sep 17 00:00:00 2001
From: Cat Flynn <me@ktyl.dev>
Date: Tue, 23 Feb 2021 09:52:00 +0000
Subject: [PATCH] add game event scriptable object

---
 game/Assets/Scripts/Util/Events.meta          |  8 ++
 game/Assets/Scripts/Util/Events/GameEvent.cs  | 80 +++++++++++++++++++
 .../Scripts/Util/Events/GameEvent.cs.meta     | 11 +++
 .../Scripts/Util/Events/GameEventListener.cs  | 29 +++++++
 .../Util/Events/GameEventListener.cs.meta     | 11 +++
 5 files changed, 139 insertions(+)
 create mode 100644 game/Assets/Scripts/Util/Events.meta
 create mode 100644 game/Assets/Scripts/Util/Events/GameEvent.cs
 create mode 100644 game/Assets/Scripts/Util/Events/GameEvent.cs.meta
 create mode 100644 game/Assets/Scripts/Util/Events/GameEventListener.cs
 create mode 100644 game/Assets/Scripts/Util/Events/GameEventListener.cs.meta

diff --git a/game/Assets/Scripts/Util/Events.meta b/game/Assets/Scripts/Util/Events.meta
new file mode 100644
index 0000000..c41daef
--- /dev/null
+++ b/game/Assets/Scripts/Util/Events.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 63db837647a10954ea169d14e0ceedce
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/game/Assets/Scripts/Util/Events/GameEvent.cs b/game/Assets/Scripts/Util/Events/GameEvent.cs
new file mode 100644
index 0000000..af84a74
--- /dev/null
+++ b/game/Assets/Scripts/Util/Events/GameEvent.cs
@@ -0,0 +1,80 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+namespace Ktyl.Util
+{
+    [CreateAssetMenu(menuName = "ktyl/Events/Game Event")]
+    public class GameEvent : ScriptableObject
+    {
+        [SerializeField] private bool _logRaised;
+
+        protected readonly List<GameEventListener> _listeners = new List<GameEventListener>();
+
+        public virtual void Raise()
+        {
+            if (_logRaised)
+            {
+                Debug.Log($"raised {this}", this);
+            }
+
+            for (int i = 0; i < _listeners.Count; i++)
+            {
+                _listeners[i].OnEventRaised();
+            }
+        }
+
+        public void Register(GameEventListener listener)
+        {
+            if (_listeners.Contains(listener))
+            {
+                Debug.LogError($"{listener} already registered", this);
+                return;
+            }
+            
+            _listeners.Add(listener);
+        }
+
+        public void Unregister(GameEventListener listener)
+        {
+            if (!_listeners.Contains(listener))
+            {
+                Debug.LogError($"{listener} not already registered");
+                return;
+            }
+
+            _listeners.Remove(listener);
+        }
+    }
+    
+    #region Editor
+    #if UNITY_EDITOR
+
+    [CustomEditor(typeof(GameEvent), true)]
+    public class GameEventEditor : Editor
+    {
+        private GameEvent _event;
+
+        private void OnEnable()
+        {
+            _event = target as GameEvent;
+        }
+
+        public override void OnInspectorGUI()
+        {
+            base.OnInspectorGUI();
+
+            if (GUILayout.Button("Raise"))
+            {
+                _event.Raise();
+            }
+        }
+    }
+    
+    #endif  
+    #endregion
+}
\ No newline at end of file
diff --git a/game/Assets/Scripts/Util/Events/GameEvent.cs.meta b/game/Assets/Scripts/Util/Events/GameEvent.cs.meta
new file mode 100644
index 0000000..37dbb6e
--- /dev/null
+++ b/game/Assets/Scripts/Util/Events/GameEvent.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 3a977303773797047b37664649362484
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/game/Assets/Scripts/Util/Events/GameEventListener.cs b/game/Assets/Scripts/Util/Events/GameEventListener.cs
new file mode 100644
index 0000000..f0fb5bb
--- /dev/null
+++ b/game/Assets/Scripts/Util/Events/GameEventListener.cs
@@ -0,0 +1,29 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Events;
+
+namespace Ktyl.Util
+{
+    public class GameEventListener : MonoBehaviour
+    {
+        [SerializeField] private GameEvent _event;
+        [SerializeField] private UnityEvent _response;
+
+        private void OnEnable()
+        {
+            _event.Register(this);
+        }
+
+        private void OnDisable()
+        {
+            _event.Register(this);
+        }
+
+        public void OnEventRaised()
+        {
+            _response.Invoke();
+        }
+    }
+}
\ No newline at end of file
diff --git a/game/Assets/Scripts/Util/Events/GameEventListener.cs.meta b/game/Assets/Scripts/Util/Events/GameEventListener.cs.meta
new file mode 100644
index 0000000..1eb64a7
--- /dev/null
+++ b/game/Assets/Scripts/Util/Events/GameEventListener.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0a5de09a27d949d4db67034f55c57e6b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: