[Lemon]

Took a bit longer than 5 mins as Codepad died halfway through with 500 errors:

<?php

$width = 9;
$height = ceil($width / 2) - 2;

echo str_repeat('*', $width);
echo PHP_EOL;

while ($height >= - (ceil($width / 2) - 2)) {
    echo '*';
    echo str_repeat('*', abs($height));
    echo str_repeat(' ', ($width - 2) - 2 * abs($height));
    echo str_repeat('*', abs($height));
    echo '*';
    echo PHP_EOL;
    $height--;
}

echo str_repeat('*', $width);
echo PHP_EOL;

Also scales nicely to larger sizes :

**************************************************
************************  ************************
***********************    ***********************
**********************      **********************
*********************        *********************
********************          ********************
*******************            *******************
******************              ******************
*****************                *****************
****************                  ****************
***************                    ***************
**************                      **************
*************                        *************
************                          ************
***********                            ***********
**********                              **********
*********                                *********
********                                  ********
*******                                    *******
******                                      ******
*****                                        *****
****                                          ****
***                                            ***
**                                              **
*                                                *
**                                              **
***                                            ***
****                                          ****
*****                                        *****
******                                      ******
*******                                    *******
********                                  ********
*********                                *********
**********                              **********
***********                            ***********
************                          ************
*************                        *************
**************                      **************
***************                    ***************
****************                  ****************
*****************                *****************
******************              ******************
*******************            *******************
********************          ********************
*********************        *********************
**********************      **********************
***********************    ***********************
************************  ************************
**************************************************

[TheEmpty]

Lemon, on 08 September 2011 - 05:35 PM, said:

Also scales nicely to larger sizes :

**************************************************
************************  ************************
***********************    ***********************
**********************      **********************
*********************        *********************
********************          ********************
*******************            *******************
******************              ******************
*****************                *****************
****************                  ****************
***************                    ***************
**************                      **************
*************                        *************
************                          ************
***********                            ***********
**********                              **********
*********                                *********
********                                  ********
*******                                    *******
******                                      ******
*****                                        *****
****                                          ****
***                                            ***
**                                              **
*                                                *
**                                              **
***                                            ***
****                                          ****
*****                                        *****
******                                      ******
*******                                    *******
********                                  ********
*********                                *********
**********                              **********
***********                            ***********
************                          ************
*************                        *************
**************                      **************
***************                    ***************
****************                  ****************
*****************                *****************
******************              ******************
*******************            *******************
********************          ********************
*********************        *********************
**********************      **********************
***********************    ***********************
************************  ************************
**************************************************

you have 50 stars at the top and bottom, that is an even number. I have nine, an odd number.

[Koen]

Made on my iPod, 1AM.

Spoiler

for (i = 4; i > -5; i--){
output((abs(i) == 4 ? 5 : abs(i) + 1) * "*");
output((abs(i) == 4 ? 0 : 7 - abs(i) * 2) * " ");
output((abs(i) + 1) * "*");
}

[Lemon]

ThatRailsGuy, on 08 September 2011 - 05:37 PM, said:

you have 50 stars at the top and bottom, that is an even number. I have nine, an odd number.

Set $width to 9 and it gives you your pattern, I was just demonstrating that it works for larger sizes too.

[Hyde]

TheEmpty : 29 lines
Lemon : 18 lines

[TheEmpty]

Hyde, on 08 September 2011 - 06:31 PM, said:

TheEmpty : 29 lines
Lemon : 18 lines

Well over 29 lines actually and I would have more if I had the time

/me points at 100 line hello world for project 1.

Also note that lemon's is not OO.

Lemon, on 08 September 2011 - 06:12 PM, said:

Set $width to 9 and it gives you your pattern, I was just demonstrating that it works for larger sizes too.

Ah, I don't have PHP installed so I couldn't test it. Nice though

Koen, on 08 September 2011 - 05:43 PM, said:

Made on my iPod, 1AM.

Spoiler

for (i = 4; i > -5; i--){
output((abs(i) == 4 ? 5 : abs(i) + 1) * "*");
output((abs(i) == 4 ? 0 : 7 - abs(i) * 2) * " ");
output((abs(i) + 1) * "*");
}

You can't use conditionals in this alg (it's to be enforcive)

[Hyde]

ThatRailsGuy, on 08 September 2011 - 06:34 PM, said:

Well over 29 lines actually and I would have more if I had the time

/me points at 100 line hello world for project 1.

Also note that lemon's is not OO.

OOPing Lemon's code would add a lot of lines. It would also get rid of some.

[TheEmpty]

Hyde, on 08 September 2011 - 06:43 PM, said:

OOPing Lemon's code would add a lot of lines. It would also get rid of some.

also don't forget he doesn't have to declare variables and other items. (main function, imports, docs, etc.) It could only get rid of a few lines, he would gain much more. But the beauty is that it's OO and OO is really nice for mat. and testing.

edit: my if statement is because it will print out "null" if I don't handle that, so it's because I don't loop over every element and set it to " "

[Daniel15]

Quote

TheEmpty : 29 lines
Lemon : 18 lines

Characters are a better measure than lines. Otherwise you could put the whole script on a single line and say it's only one line of code

Quote

Also note that lemon's is not OO.

Static methods aren't really OO either. An OO design would have a "Diamond" object with a width property (or similar), used something like

Diamond test = new Diamond();
test.setWidth(9);
test.render();

[TheEmpty]

Daniel15, on 08 September 2011 - 07:48 PM, said:

Static methods aren't really OO either. An OO design would have a "Diamond" object with a width property (or similar), used something like

Diamond test = new Diamond();
test.setWidth(9);
test.render();

True. I like how his scales But actually, it's basiclly the same thing, just that it's static

[Hyde]

Daniel15, on 08 September 2011 - 07:48 PM, said:

Characters are a better measure than lines. Otherwise you could put the whole script on a single line and say it's only one line of code

I know I know, it was just a quick comparison.

[gibbonweb]

Proud to say that mine's as short as lemon's, but more beautiful.

http://codepad.org/lgkUfDyn

[TheEmpty]

gibbonweb, on 09 September 2011 - 04:02 AM, said:

Proud to say that mine's as short as lemon's, but more beautiful.

http://codepad.org/lgkUfDyn

indeed, very nice how long (to program it)?

[gibbonweb]

ThatRailsGuy, on 09 September 2011 - 06:54 AM, said:

indeed, very nice how long (to program it)?

Well, I read the thread and then had to leave the computer because of an appointment...
I had the chance to think about it longer than 5 minutes, I admit - but once I thought about the fact that what you're asking is basically the unit circle of the 1-norm, programming was a matter of 1-2minutes. The test case et cetera not counted in, of course, that's just there for convenience

...am I hired now?

[alexdavey]

9 lines, am I cheating?

function Diamond(n) {
	for (var i = 2 + -n++; i < (n + 2); i += 2) {
		var spaces = new Array(n - Math.abs(i - 2)).join(' '),
			stars = new Array(n - spaces.length + 2).join('*'),
			half = stars.length / 2;
		string = stars.substring(0, half) + spaces + stars.substring(half);
		console.log(string);
	} 
}

new Diamond(10);

[Lemon]

One line, do I win?

<?="*********\n**** ****\n***   ***\n**     **\n*       *\n**     **\n***   ***\n**** ****\n*********";

[TheEmpty]

alexdavey, on 09 September 2011 - 04:27 PM, said:

9 lines, am I cheating?

nah, no if's all math

Lemon, on 09 September 2011 - 04:33 PM, said:

One line, do I win?

<?="*********\n**** ****\n***   ***\n**     **\n*       *\n**     **\n***   ***\n**** ****\n*********";

no math!

[Lemon]

ThatRailsGuy, on 09 September 2011 - 07:29 PM, said:

no math!

<?php $piAp = 22/7; echo "*********\n**** ****\n***   ***\n**     **\n*       *\n**     **\n***   ***\n**** ****\n*********";

[gibbonweb]

Lemon, on 09 September 2011 - 07:48 PM, said:

<?php $piAp = 22/7; echo "*********\n**** ****\n***   ***\n**     **\n*       *\n**     **\n***   ***\n**** ****\n*********";

doesn't scale, you suck.

I have a scalable less-than-8 line code in my head, but I'll have to do that later. workwork...