May 2010 / Archive / Martin Caine

I'm a professional game developer from Wakefield, England, working as a senior programmer for Rebellion North.

I'm a married father of five and I a also sometimes do Retroburn stuff.

Martin 'Bytrix' Caine

Father. C++ Games Programmer. Cyclist. Guitarist.

Project Euler - Problem 8



<?
/******************************************************************
*  ProjectEuler.net  *  Problem 8  *  2010-05-31  *  Martin Caine *
******************************************************************/

$string  = '73167176531330624919225119674426574742355349194934';
$string .= '96983520312774506326239578318016984801869478851843';
$string .= '85861560789112949495459501737958331952853208805511';
$string .= '12540698747158523863050715693290963295227443043557';
$string .= '66896648950445244523161731856403098711121722383113';
$string .= '62229893423380308135336276614282806444486645238749';
$string .= '30358907296290491560440772390713810515859307960866';
$string .= '70172427121883998797908792274921901699720888093776';
$string .= '65727333001053367881220235421809751254540594752243';
$string .= '52584907711670556013604839586446706324415722155397';
$string .= '53697817977846174064955149290862569321978468622482';
$string .= '83972241375657056057490261407972968652414535100474';
$string .= '82166370484403199890008895243450658541227588666881';
$string .= '16427171479924442928230863465674813919123162824586';
$string .= '17866458359124566529476545682848912883142607690042';
$string .= '24219022671055626321111109370544217506941658960408';
$string .= '07198403850962455444362981230987879927244284909188';
$string .= '84580156166097919133875499200524063689912560717606';
$string .= '05886116467109405077541002256983155200055935729725';
$string .= '71636269561882670428252483600823257530420752963450';

$max = 0;

for( $i=0; $i<996; $i++ )
{
    $sum = intval( substr( $string, $i, 1 ) ) *
                 intval( substr( $string, $i+1, 1 ) ) *
                 intval( substr( $string, $i+2, 1 ) ) *
                 intval( substr( $string, $i+3, 1 ) ) *
                 intval( substr( $string, $i+4, 1 ) );
    if( $sum > $max )
    {
        $max = $sum;
    }    
}

echo $max;
?>

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - Problem 7



<?
/******************************************************************
*  ProjectEuler.net  *  Problem 7  *  2010-05-31  *  Martin Caine *
******************************************************************/

// create an array to store the primes
$primes = array();
$primes[] = 2;
// count the primes
$i = 1;

$n = 2;

// break when we get to 10001
while( $i < 10001 )
{
    $n++;
    $isPrime = true;
    foreach( $primes as $prime )
    {
        if( ($n/$prime) == (int)($n/$prime) )
        {
            $isPrime = false;
            break;
        }
    }
    
    if( $isPrime )
    {
        $primes[] = $n;
        $i++;
    }
}

echo $primes[10000];

?>

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - Problem 6

It took less than a minute to complete puzzle number 6 from Project Euler:

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - problem 5

Problem 5 (yes these are pretty quick ones) from Project Euler is a really easy one again:

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - problem 4

Another pretty easy one from Project Euler, puzzle 4 simply required building an array of values based on calculations and sorting them to find the highest values:

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - problem 3

The third problem from Project Euler was a little more complex:

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Tags: php project euler web

Monday, May 31st 2010 / Web

Project Euler - problem 2

The second Project Euler problem was another simple one:

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Tags: php project euler web

Monday, May 31st 2010 / Web

Someone I'm following on Twitter posted a link to an interesting site called Project Euler. It's full of interesting maths puzzles which are designed in such a way that you should create a program to calculate the result for you.

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Tags: php project euler web

Thursday, May 27th 2010 / XNA

The Fresnel term

I've spent the last few days reworking some of the core shaders in my XNA games and in particular working on the shaders that render the cars in our racing game Shadow Racers.

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Tags: fresnel shadow racers xna

Tuesday, May 25th 2010 / Blog

The Lost finale

Last night I sat down for two hours with my Wife Laura and together we watched the final episode of Lost after watching the full six seasons together over the past two years.

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Tags: blog lost tv

Friday, May 21st 2010 / Web

obj scaling, translating and rotating tool

Early during the development of my XNA game engine I started using a custom model processor which is integrated heavily into the deferred renderer and uses obj files as it's input.

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Tags: obj php web

Thursday, May 20th 2010 / Blog

Intensity Pro working

Just a little update here as I did manage to get my Intensity Pro working last week after some fiddling.

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Tags: blackmagic design blog intensity pro

Tuesday, May 18th 2010 / Blog

Using an Apple iMac as monitor for an Xbox 360

I was searching for some information last night on how I would go about connecting an Xbox 360 to a 27" iMac and after hours of searching I found a solution.

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Tags: apple blog dr bott imac mac

Saturday, May 15th 2010 / Blog

Export obj in Maya 2011

I found myself searching for a way to export .obj files from Maya 2011 this week and found very little information regarding the subject. It turns out the functionality is inbuilt but just hidden away!

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Tags: blog maya obj

Thursday, May 13th 2010 / Blog

Roadkill Live at the Snooty Fox, Wakefield

My Brother's band Roadkill played their first gig in a while lastnight and I have to say they were pretty tight!

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Tags: blog roadkill

Tuesday, May 11th 2010 / Gaming

The Humble Indie Bundle

I was just checking some of the latest updates on my Twitter and noticed @nickgravelyn had tweeted about The Humble Indie Bundle.

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Tags: childsplay gaming humble indie bundle

Tuesday, May 4th 2010 / Blog

Follow me on Twitter

For those of you out there who are Twitter users I have three accounts on there which I try to regularly keep updated (ok, not so much yet but I do plan to update them more often).

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Tags: indie trials retroburn game studios twitter xbox live indie games xna

Monday, May 3rd 2010 / Blog

Intensity Pro Problems

Well, here's a quick catch up after my first post regarding the Blackmagic Design Intensity Pro.

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Tags: blackmagic design blog intensity pro