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August 26, 2019
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The Wii U web browser's HTML5 gaming capabilities

by Matt Hackett on 12/09/12 11:54:00 pm   Featured Blogs

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The following blog post, unless otherwise noted, was written by a member of Gamasutra’s community.
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HTML5 games on consoles

Several weeks ago Microsoft released Internet Explorer on the 360. In my article Play our HTML5 games on your Xbox 360 I discussed that browser’s HTML5 gaming capabilities and the impact it could have on HTML5 game studios like ours. Around the same time, Nintendo launched their next-generation console Wii U, which (after a ~3GB system update) also has its own internet browser.

This isn’t the first time web browsers have been available on gaming consoles. Nintendo’s previous console (Wii) featured a version of Opera called Internet Channel. Sega’s Dreamcast had a web browser more than 10 years ago! But now in 2012, HTML5 games are on the rise. Is Nintendo’s new browser capable of running them?


Onslaught! Arena

In the Wii U’s browser, I visited the Lost Decade Games arcade and was pleased that at least two of our games are playable out of the box. Here are some of the positive take-aways:

  • Nearly complete 2d canvas API support.
  • The Wii U controller’s excellent d-pad maps perfectly to the arrow keys (up/down/left/right).
  • The A button is mapped to enter/return.

Remarkably, the browser also aced the Acid3 Test. Its rendering engine is slow but draws everything very well. Unfortunately, there’s a lot more to say about what’s bad.


Wii U browser's HTML5 Test score

Using the online HTML5 Test tool (as well as a few of my own scripts), I compiled the capabilities of the Wii U browser. Here are some of those results:

An Audio object exists but it doesn’t support any standard audio formats (such as mp3ogg, or even wav). Sadly there’s no WebGL support at all. Though the localStorage object exists and will accept commands to get and set data, the local storage data is wiped when the browser is closed, breaking its functionality completely.

It DOES play games!

Onslaught! Defense

Although there’s no audio, you can’t save your game, and the framerate is terrible, two of our games are playable. Lunch Bug is even monetized via Google Wallet, though without a working local storage, there’s really no point in buying anything.

If you only end up playing only one HTML5 game in your Wii U browser, make it Onslaught! Defense. I added keyboard functionality today, and since the Wii U controller’s d-pad maps to the arrow keys, you can even play the game with the d-pad.

Wii U controller’s browser commands

Lastly, here’s what seem to be the default browser commands of the controller’s buttons:

  • A: mouse click or enter/return key equivalent (USABLE!)
  • Bhistory.back()
  • Y: open bookmarks
  • X: toggle TV visibility
  • d-pad: arrow keys (USABLE!)
  • Left stick: pan
  • Right stick: zoom
  • -: zoom out
  • +: zoom in
  • L/R: history.back/forward
  • LZ/RZ: previous/next tab

(Feel free to correct me if I’m wrong about any of these.)

The platform certainly isn't ideal yet, but it's easy to see how, with a little more development effort, there could be some real potential here. 

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