Updated to run in VS Code

[bjordan2010]

I was messing around with your code. I have a branch that updates with build tasks and run configs for VS Code. Fixes a compile error around TILESIZE, centers the board, and adds this website https://thescienceofcode.com/sdl-vscode-c-cpp-debug/, to the README for people looking to install VS Code and SDL for the first time.

If you are interested, let me know, I'll be glad to send it to you. I know the project is old, but it's an interesting tutorial. Thanks for your work.

I also think I know why your mouse cursor box is off on your grid. The center point is in the top left corner of the box. If you move the center point to the middle of the box, it will line up with your grid.