You can find the code for this tutorial here: https://github.com/mindvoxel/gamemake...
Feel free to download and run it yourself. I don't mind if you copy the code and use it for your own game :)
Edit @ 5:28 room_width is a built-in variable, not a function!
This is the first in a series of GameMaker tutorials for beginners/intermediate developers. In this video we learn how to handle text input! I noticed I said the word 'so,' a lot. Will work on that.
Feel free to ask any questions in regard to the tutorial/game development/whatever. If you have any criticisms or think my voice is stupid, go ahead and say that, too.
Speak yo' mind.