Is There A Way To Undo All Actions Before I Quit Xcode?

I made some changes to 开发者_开发问答my project tonight and messed some stuff up. Is there a way I can go back to how the project was when I opened it? I added/deleted some files but I don't see a way to go back. My last time machine backup was from a few days ago also.

It won't help with the immediate problem, but you need to start using source code control.

This is exactly the sort of problem that source control solves. In Xcode 4 Apple make it particularly easy to start using source code control, as whenever you create a project it offers to create a Git repository for you.

Even for the smallest personal projects, source control is well worth the effort.

There is a possibility to roll back changes if you use XCode's snapshots feature. XCode 4 suggests making a project snapshot before refactoring, for example.

If you don't have the habit to commit or stash changes often (or happen not to use source control at all), snapshots are a nice tool to use before making any major changes that may break the project.

In your current situation though, you're out of luck. Sorry.