Angry Birds - created with public SDK?

Here's a test I did with the 3.0 SDK:

http://www.rastersoft.net/PicnicDefense.zip

This has a background of 512x480 a side panel of 128x480, both blitted without alpha.
4 sprites and 65 DrawObject calls using 32x32 images with alpha.
The main area is clipped to 640x480.

It seems to run pretty smoothly, right at about 30 frames per second. I do see a drop from 60 to 30 fps when drawing the 64 image, but this could also be because I am looking through a 144 element array to figure out which locations to draw to. My next test is to change everything to sprites and see if it speeds up any.

Edit:
As expected, eliminating the array processing increased the frame rate:

http://www.rastersoft.net/PicnicDefense2.zip

"RokuPatrick" wrote:
Please see this morning's developer blog post for more information about Angry Birds and gaming on Roku: http://blog.roku.com/developer/

I was going to ask if playing Angry Birds or any other upcoming games will require new hardware, but your blog pretty much answered that question for me. 😄

Brightscript does feel a lot like the old 8 bit basics, just got to remember not to add a semicolon at the end of a line.

It's been pretty easy to pickup. Although, I'm dreading the syntax error half way into running the program.

"jbrave" wrote:
So optimally it will be like game dev in BASIC on the old atari 400/800, (sprites and all) inline code without arrays, I knew all those years of writing games as a kid might eventually come in handy!

8-)

-Joel

lol... good one, Joel. 🙂

So optimally it will be like game dev in BASIC on the old atari 400/800, (sprites and all) inline code without arrays, I knew all those years of writing games as a kid might eventually come in handy!

8-)

-Joel

"cdoty" wrote:
What kind of performance can we expect from the 2D APIs?

Can it realistically draw an entire screen at 15 to 30 frames per second?

Yes, depending on the scene, and how willing you are to abuse the double buffering. You can actually achieve 60 fps.

There's a few things to consider with this though: regular and associative array element access is costly. Function calls are costly. Floating point is costly. It really depends on the application.

Please see this morning's developer blog post for more information about Angry Birds and gaming on Roku: http://blog.roku.com/developer/

What kind of performance can we expect from the 2D APIs?

Can it realistically draw an entire screen at 15 to 30 frames per second?

They will be using features not available in the current public SDK, although the v3.0 firmware does enable the development of 2D games. The Rovio announcement marks Roku's entry into the casual gaming space and we can't wait to see what other games are developed with the v3.0 2D APIs.

--Kevin

I'm pretty sure that most (if not all) of the original private-access features that the netflix channel uses did eventually make it into the public SDK. It is possible that some of what Rovio is doing may not be in the public SDK intially, but I'm pretty sure that Roku will eventually make it available.