Merge branch 'script-name' of git://github.com/jb-perrier/FlaxEngine into jb-perrier-script-name

Source/Editor/Content/Proxy/ContentProxy.cs

@@ -73,6 +73,16 @@ namespace FlaxEditor.Content
             throw new NotImplementedException();
         }
 
+        /// <summary>
+        /// Determines whether the specified filename is valid for this proxy.
+        /// </summary>
+        /// <param name="filename">The filename.</param>
+        /// <returns><c>true</c> if the filename is valid, otherwise <c>false</c>.</returns>
+        public virtual bool IsFileNameValid(string filename)
+        {
+            return true;
+        }
+        
         /// <summary>
         /// Determines whether this proxy can create items in the specified target location.
         /// </summary>

Source/Editor/Content/Proxy/ScriptProxy.cs

@@ -66,6 +66,15 @@ namespace FlaxEditor.Content
             return false;
         }
 
+        /// <inheritdoc />
+        public override bool IsFileNameValid(string filename)
+        {
+            // Scripts cannot start with digit. 
+            if (Char.IsDigit(filename[0]))
+                return false;
+            return true;
+        }
+        
         /// <inheritdoc />
         public override void Create(string outputPath, object arg)
         {

Source/Editor/Modules/ContentEditingModule.cs

@@ -118,6 +118,25 @@ namespace FlaxEditor.Modules
                     return false;
                 }
 
+                // Check proxy name restrictions
+                if (item is NewItem ni)
+                {
+                    if (!ni.Proxy.IsFileNameValid(shortName))
+                    { 
+                        hint = "Name does not follow " + ni.Proxy.Name + " name restrictions !";
+                        return false;
+                    }
+                }
+                else
+                {
+                    var proxy = Editor.ContentDatabase.GetProxy(item);
+                    if (proxy != null && !proxy.IsFileNameValid(shortName))
+                    { 
+                        hint = "Name does not follow " + proxy.Name + " name restrictions !";
+                        return false;
+                    }
+                }
+
                 // Cache data
                 string sourcePath = item.Path;
                 string sourceFolder = System.IO.Path.GetDirectoryName(sourcePath);