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by dextrus
Thu Oct 11, 2012 8:17 pm
Forum: Troubleshooting
Topic: cannot copy bootable SD card
Replies: 8
Views: 1423

Re: cannot copy bootable SD card

Fake cards report incorrect size (of course), but also report that writes have worked, when in fact they haven't. The trouble is, fake cards do have capacity (2gb, although I had one recently with 8) and that you have to read the data back to find the error. In normal use, we don't do this so you do...
by dextrus
Wed Oct 10, 2012 11:01 pm
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

Anyway it stops part way through with a fatal error - GLES/gl.h: no such file or directory compilation terminated. Texy I had similar issues, what I found was the Class 10 SD card I was using started to get errors when I used the Turbo mode on Raspian (it had previously worked on the normal 700mhz ...
by dextrus
Wed Oct 10, 2012 10:26 pm
Forum: Troubleshooting
Topic: cannot copy bootable SD card
Replies: 8
Views: 1423

Re: cannot copy bootable SD card

What worries me is that you try and copy the "good" image from one card to the other card, irrespective of the card. You are not keeping a stable "known" image. I don't know how many times you have done this but I do wonder if an error has crept in at some point, and is now on both cards. Another wa...
by dextrus
Wed Oct 10, 2012 7:58 pm
Forum: Beginners
Topic: Backing up your SD card using Windows
Replies: 2
Views: 976

Backing up your SD card using Windows

Folks, I have made a rather embarrassing (apparently I sound like Jack Hargreaves, for those who might remember him .. a 70's TV presenter) video that explains the entire process for backing up your SD card to your PC, using Windows and Win32DiskImager, all assuming of course, that everything is wor...
by dextrus
Thu Sep 27, 2012 10:40 pm
Forum: Other projects
Topic: Pi Games
Replies: 48
Views: 12952

Re: Pi Games

I've started a project to test and rate ALL of the Debian "Wheezy" games on the Raspberry Pi. So far, we've got a 50%-ish success rate. I suspect we can up that substantially in the near future with OpenGL drivers and such. There are many, many hundreds of games including Doom and Quake all easily d...
by dextrus
Fri Jul 13, 2012 9:25 pm
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

There are a few user-friendly editors from the command line or there's nothing to stop you using the GUI and editing those files. I use pico, and there is nano (just type in the words) from the command line. I see the latest Raspbian build doesn't have Geany (not surprising though!) which is an exce...
by dextrus
Fri Jul 13, 2012 5:49 pm
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

Here are the two code changes in context: /* ===================== S_BeginRegistration ===================== */ void S_Base_BeginRegistration( void ) { // XXX hacked to disable sound // andy I am reversing this hack s_soundMuted = qfalse; // we can play again //s_soundMuted = 1; if (s_numSfx == 0) {...
by dextrus
Tue Jul 10, 2012 11:07 pm
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

It seems perfectly playable to me, especially with spacial sound. Have you both tried it on the latest Raspian Pisces build? If you're talking "competitive" meaning professional gamer level, then that's just crazy talk.
by dextrus
Mon Jul 09, 2012 1:44 pm
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

I've no idea if this works across other Pi configurations at the moment (need more Pi's!). Is it working for everyone? I'm a n00b with git too, so perhaps if we see it doesn't break anything else, someone else could do it?
by dextrus
Mon Jul 09, 2012 10:57 am
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

At last, I have fixed the sound. It's only 3 lines of code to fix in the end! In code/client modify the following lines in snd_dma.c. I might have nudged the line-numbers out though.. 393: Undo the hack by un-commenting the s_soundMuted = qfalse; line. Comment out the line after, which reads "s_Soun...
by dextrus
Mon Jul 09, 2012 12:13 am
Forum: General discussion
Topic: Quake 3 Arena at 60 FPS
Replies: 89
Views: 49184

Re: Quake 3 Arena at 60 FPS

I've made a minor discovery regarding sound: It's been hacked out. If you look at snd_dma.c (in code/client) around line 393 you can see the offending hack (the author even says "XXX hacked to disable sound"). Removing the hack and enabling sound (note you also need to modify line 400) again cause f...
by dextrus
Sun Mar 25, 2012 8:54 pm
Forum: Staffroom, classroom and projects
Topic: Why Pi when you can just run Linux?
Replies: 98
Views: 21725

Re: Why Pi when you can just run Linux?

<t>For me, it's the "plug and play" aspect. You can pop in a SD-card and within seconds, your R-Pi will do what you want it to do. Want to teach the kids about physics? Pop in a SD card with everything they need. Want to play a game? Pop in a game. It's similar to a home games console, except you ca...
by dextrus
Mon Mar 12, 2012 10:13 pm
Forum: General discussion
Topic: How slow is it?
Replies: 113
Views: 20774

Re: How slow is it?

<t>lewmur said: <br/> <br/> <br/> Grumpyoldgit said: <br/> <br/> <br/> What is unclear to me is how much of this is down to Qemu and how much is a Fedora Mix issue. I found booting up with Debian really easy by comparison. Has anyone put an average Windows user in front of a Pi and got them to do ev...
by dextrus
Wed Mar 07, 2012 8:15 pm
Forum: Python
Topic: Best book to learn python?
Replies: 17
Views: 16640

Re: Best book to learn python?

<t>Rather than relying on a book, wouldn't it be more prudent to choose a project (say, "space invaders" or "staff holiday system") and glean what you can from the various sources available to you (and I would say this source is a key starting point)? Otherwise you risk tying yourself to the author'...
by dextrus
Mon Mar 05, 2012 10:49 pm
Forum: Staffroom, classroom and projects
Topic: Pygame
Replies: 29
Views: 7095

Re: Pygame

<r>For me, Pygame is a no-brainer, It's a must-have. But this does bring problems for the an educator. Why?<br/> <br/> Boilerplate code. In order to do anything meaningful with Pygame you need quite a bit of "stuff", and this can be, I can probably go as far as *is* off-putting to students. 10 year-...
by dextrus
Mon Mar 05, 2012 10:49 pm
Forum: Staffroom, classroom and projects
Topic: Pygame
Replies: 29
Views: 7095

Re: Pygame

<r>For me, Pygame is a no-brainer, It's a must-have. But this does bring problems for the an educator. Why?<br/> <br/> Boilerplate code. In order to do anything meaningful with Pygame you need quite a bit of "stuff", and this can be, I can probably go as far as *is* off-putting to students. 10 year-...
by dextrus
Mon Mar 05, 2012 10:28 pm
Forum: Staffroom, classroom and projects
Topic: Using RPi in an "ICT Classroom"
Replies: 33
Views: 5058

Re: Using RPi in an "ICT Classroom"

<t>I entirely sympathize with your dilemma. I've been trying to teach Software Engineering for games in a University context for nearly 8 years in what I would consider quite a progressive institution (post 92). I got my way in the end (sort of), thanks to a lot of buy-in and help from staff, but th...
by dextrus
Mon Mar 05, 2012 10:06 pm
Forum: Python
Topic: Should I learn python 2 or python 3?
Replies: 9
Views: 13363

Re: Should I learn python 2 or python 3?

<t>This isn't an easy question to answer. The basics though are:<br/> <br/> Go with Python 3 if you just want to learn the language and aren't interested in doing anything "serious". Why? Because a lot of the key libraries for doing "cool" stuff haven't been converted to Python 3 yet.<br/> <br/> Thi...
by dextrus
Tue Feb 07, 2012 11:43 am
Forum: General discussion
Topic: Tax implications of donating a Pi
Replies: 5
Views: 1097

Re: Tax implications of donating a Pi

<t>I'm planning to use the Pi for its intended purpose and take it into schools to teach kids about game development. However over time I also want to donate an unspecified number of Pi's to local schools.<br/> <br/> As a small business, are there any tax implications/breaks for doing this? Would do...

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