I run the Android version, which lacks documenation, ...
Unfortunately, that's right... :-/
... and althought it does have storage permission, I cannot find a R&D folder on my SDCard. Without root access, my file manager won't show R&D's internal directory so I can't add levelsets to it.
At least I should add some notes about adding additional level sets. The problem is that this is really not user-friendly at all, I'm afraid, as Android does not make it as easy as it is on Windows/Mac/Linux.
The general procedure is discussed/described in this thread:
How to add levels to android version
To summarize it:
- First of all: You do not need root access!
- You do need the latest version 4.0.1.0 of R'n'D.
- Download any zip archive with R'n'D level sets; it should be placed in the "Download" directory.
- Extract the zip archive with a third-party tool like "RAR" to the "RAR" application's "files" directory (because normal Android apps are only allowed to write to their own data directory).
- Using the "official" file manager of your Android device (like "My Files" on Samsung devices), move the extracted level set directory from the "RAR" files directory to the R'n'D "levels" directory inside of R'n'D's "files" directory.
- Restart R'n'D and select the newly installed level set!
Some more details to find the right directories: On my Samsung Android devices (Samsung Galaxy S4 mini and Samsung Galaxy Tab), using the "My Files" application, I first have to select "All files" first from the top-level screen, which effectively moves to "/storage" (displayed on top of the screen). From there, I can either select "Decive storage" and "SD memory card". Select "Device storage" here (this effectively moves to "/storage/emulated/0" on my device). From here, I can navigate to directory "Download" (to find my downloaded R'n'D level set zip archive files), or to "Android/data" (that means, go to the "Android" folder first, then go to the "data" folder). From here, move the extracted R'n'D level set folders from folder "com.rarlab.rar/files" to folder "org.artsoft.rocksndiamonds/files/levels". That's it!
UPDATE:
It seems that the whole process is much easier, as "RAR" apparently can write to other applications "files" folder! Just tested on my S4 mini, and it seems to work just fine! So, you would then only need the following steps:
- Download any zip archive with R'n'D level sets; it should be placed in the "Download" directory.
- Extract the zip archive with "RAR" to "Android/data/org.artsoft.rocksndiamonds/files/levels".
- Restart R'n'D and select the newly installed level set!
Please let me know if this second, much easier process works for you! I will then add this to the instructions on my "Download" web page.
UPDATE 2:
There's something important that I forgot about: I've tested the "easier" way on an old Android version 4.4, which may be less strict regarding apps being allowed to write to other apps' data ("files") directories. It may well be possible that this does not work anymore with more recent Android versions.
So please, everybody with Android devices, let me know if the "easier" procedure works for you or not, and which Android version you have tested! (I will have access to an Android 6.0 device in a few weeks, and I will try how it works there.)