Background/Minimized Window Detector. (Java/Windows 10)

Have you ever forgot to pause on your single-player survival or hardcore world and leave your game running in the background. Then, when you come back you died and your items are long gone or you can't respawn. If Minecraft could detect when the window was in the running background or minimized, and pause, this wouldn't happen. You would be able to disable this in case you have an AFK farm, but it would be enabled by default. Also, it wouldn't work on servers. Another benefit is that it would save computer resources.