Accidentally deleted /var/tmp directory and I'm now stuck in an infinite restart loop

So guys, I was poking around and I accidentally deleted that file. I am now stuck in a restart loop that sometimes ends with a white kernel stop sign in front of a black screen. When that happens, I am forced to restart my computer again.
Every time I restart, the loading bar is about 1/5 of the way there when a series of messages show up on the top left of the screen. I took some pictures of the message, and I have inserted it below.
Again, the directory is /var/tmp, and I am not sure if it was /private or not. I'm sorry.
The kind person who fixes this issue will get my undying respect.
Again, thank you guys very much.
I own a 2012 15 inch MBP, if that helps.

In addition to what greg sahli suggests, also issue the commands:
chmod 1777 /var/tmp
chown root:wheel /var/tmp
My commands and greg sahli's suggestions ASSUME that you did not delete other things essential for the normal operation of Mac OS X.
Otherwise you will have to follow mende1's advice and reinstall Mac OS X.

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Dec 30 18:03:28 MacBook-Air locationd[352]: libcoreservices: _dirhelper: 454: mkdir: path=/var/folders/zz/zyxvpxvq6csfxvn_n00000sm00006d/C/ modes[2]=0700: No such file or directory
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Accidentally deleted /var/tmp directory and I'm now stuck in an infinite restart loop

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