game(scripts): help box help er

Game/Assets/Scripts/HelpBox.cs

@@ -0,0 +1,47 @@
+// https://discussions.unity.com/t/helpattribute-allows-you-to-use-helpbox-in-the-unity-inspector-window/659414/22
+using UnityEngine;
+using UnityEditor;
+
+public enum HelpBoxMessageType { None, Info, Warning, Error }
+
+public class HelpBoxAttribute : PropertyAttribute {
+
+    public string Text;
+    public HelpBoxMessageType MessageType;
+
+    public HelpBoxAttribute(string text, HelpBoxMessageType messageType = HelpBoxMessageType.None) {
+        this.Text = text;
+        this.MessageType = messageType;
+    }
+}
+
+[CustomPropertyDrawer(typeof(HelpBoxAttribute))]
+public class HelpBoxAttributeDrawer : DecoratorDrawer {
+
+    public override float GetHeight() {
+        try {
+            var helpBoxAttribute = attribute as HelpBoxAttribute;
+            if (helpBoxAttribute == null) return base.GetHeight();
+            var helpBoxStyle = (GUI.skin != null) ? GUI.skin.GetStyle("helpbox") : null;
+            return helpBoxStyle == null ? base.GetHeight() : Mathf.Max(40f, helpBoxStyle.CalcHeight(new GUIContent(helpBoxAttribute.Text), EditorGUIUtility.currentViewWidth) + 4);
+        }
+        catch (System.ArgumentException) {
+            return 3 * EditorGUIUtility.singleLineHeight; // Handle Unity 2022.2 bug by returning default value.
+        }
+    }
+
+    public override void OnGUI(Rect position) {
+        if (attribute is not HelpBoxAttribute helpBoxAttribute) return;
+        EditorGUI.HelpBox(position, helpBoxAttribute.Text, GetMessageType(helpBoxAttribute.MessageType));
+    }
+
+    private static MessageType GetMessageType(HelpBoxMessageType helpBoxMessageType) {
+        switch (helpBoxMessageType) {
+            default:
+            case HelpBoxMessageType.None: return MessageType.None;
+            case HelpBoxMessageType.Info: return MessageType.Info;
+            case HelpBoxMessageType.Warning: return MessageType.Warning;
+            case HelpBoxMessageType.Error: return MessageType.Error;
+        }
+    }
+}

Game/Assets/Scripts/HelpBox.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 08e77f16aecb3cf41b13291313e08860
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: