I tried both sourcing the code and install.packages('fun') and get the same results:

fun::mine_sweeper()
fun::lights_out()
Both get this errror:
Error in setGraphicsEventEnv(which, as.environment(list(...))) :
this graphics device does not support event handling

fun::sliding_puzzle()
Error in while ((len.right%%2) != (len.z%%2) | (all(z == z.right))) { :
argument is of length zero

fun::htmlspecialchars()
Error in gsub(x[i], subx[i], string, fixed = TRUE) :
argument "string" is missing, with no default

fun::tag_cloud()
Error in gsub(x[i], subx[i], string, fixed = TRUE) :
argument "tagData" is missing, with no default

The others are working.

Something for your fun package.

http://stackoverflow.com/questions/8479058/how-do-i-find-waldo-with-mathematica

Is it possible to use the functions in fun package in a shiny app?

How about my Astrarium minigame generator? It could be added :) Astrarium is a minigame from Dragon Age: Inquisition. See more info here (with the function):

https://rfunctions.blogspot.com/2021/05/astrarium2-r-game-about-linking-stars.html

Best,
José Hidasi-Neto

Task was to find a T out of a 10 x 30 matrix filled with I. The T was in row 10, column 3 but the test said it is in 10, 4.

需要一个更好的在*nix下自动提醒用户使用基于Xlib的X11。

if (.Platform$OS.type == 'windows')
    dev.new(width = width, height = height) else X11(width, height, type = 'Xlib')

会让Windows下的R CMD check抱怨没有type参数。而简单的

dev.new(width = width, height = height)

又不能迫使用户使用Xlib。

Hey Yihui,
you might want to check out https://github.com/MattSen/Games-in-R.
These are two games in R, I programmed while not writing my thesis ;-P
Cheers
MattSen