Unity is a 3D game engine with an (well, you have both unity events and c# events too) event based event system.
I have never seen an event system not based on events. Wouldn't that be a non-event system?? If you have a specific question, here is how to report your problem productively in the Unity3D forums: http://plbm.com/?p=220 How to understand compiler and other errors and even fix them yourself: https://forum.unity.com/threads/ass...3-syntax-error-expected.1039702/#post-6730855 If you post a code snippet, ALWAYS USE CODE TAGS: How to use code tags: https://forum.unity.com/threads/using-code-tags-properly.143875/