I am pleased to announce the release of TetWiis v0.2b.

Download [download#22#nohits]

This release contains the following changes:

• Improved Block graphics
• Addition of ‘changing’ background depending on progression through the game
• Reset/Power button callbacks now implemented
• Menu options now rumble when you point at them.
• Minor bug fixes.

Following the first beta release, and with (so far) no reports of any issues, I’ve been continuing development of TetWiis.

To start with, I’ve changed the blocks to now use a graphic rather than simply drawing sqaures. This has made it look so much better!

Next up, I’ve started to add backgrounds into the main game. I’m going to make the background images change at various level changes. A quick sample of what the first level screen looks like is shown below.

I am pleased to announce the release of TetWiis v0.1beta.

Download [download#22#nohits]

Please note: this is a beta release so that I can get the game tested by more than just me! and also gather feedback!

TetWiis is freeware, can be distributed freely and should never be charged for. If you distribute this elsewhere I’d appreciate being informed

This has taken a considerable amount of time to create. If you would like to give something back, you’ll find a donate link below

After downloading, unzip straight into the apps folder on your SD card.  The zip already contains a ‘tetwiis’ folder so there is no need to create one.  Once unzipped, either take a look at the Wiibrew page for TetWiis, or the readme.txt file for more details about the controls.

Below you’ll find a youtube video of TetWiis in action!

Answer – when its a rand() function call on the wii!

I was aware that there may be some frailties with the rand() function, but I didn’t expect to come across what I found!

My original code did the following to determine the next block

return (rand()%7) +1;

Which all seemed good and well.  I understood that it was only pseudo random, though what I didn’t expect was if I called it consecutively within quick succession of each other, that it would suddenly start returning the same number!  I noticed that if I dropped the blocks quick enough, that I could get 2 or 3 of the same type to appear in the list!  It took me a few goes to test this and make sure it wasn’t just chance, but sure enough, I could recreate it!

The solution – I decided to implement a mersenne twister random number generator!  I’d read about these types of generators before and searching the interweb, I came across http://www.bedaux.net/mtrand/ where sure enough, a simple enough implementation of it exists that I could pretty much take as a whole (Thanks Jasper!)

My randoms now really are random no matter how quickly I do it which obviously makes for a much better game of TetWiis 🙂