Turbowarp recomended: https://turbowarp.org/1064629025 this is almost identical to griffpatch's, although it is much faster and the loops around to each side. This is list-based. Press space to delete all of the cells. Use your mouse to add cells, when your done adding cells press space. You can easily change the grid size by simply changing the steps var to be the size of each cell. !!The grid is ~20000 cells large!! Griffpatch for the original tutorial.
