Power of 2

[nightwolfz]

Hello everyone

Im having a little problem here, on the blitzbasic programming language you can set options to an object using the power of 2

example
2 = hero has double HP
4 = hero has double DEX
8 = hero has double STR

and you can make combos, like

10=8+2 -> hero has double STR and HP

---

I tryed to make a function for this with PHP for my webbased game, but this is as far as I got

$option=(int)$res['options']; //take from database
$option-=8;
if ($option>=0) $option_2str=true;  else $option=(int)$res['options'];
$option-=4;
if ($option>=0) $option_2dex=true; 		else $option=(int)$res['options'];
$option-=2;
if ($option==0) $option_2hp=true;

Please help, I've been stuck with this whole day

[laserlight]

hmm... you are taking about bitpacking using bitwise operators? If so, read the PHP Manual on bitwise operators.

[nightwolfz]

hi laserlight, that link did help me, but I need something much much more simplier

my plan is to make one mysql db field for all options, instead of one field per option.
so instead of this 3 mysql fields

option_2str | bool
option_2dex | bool
option_2hp | bool

i want to have one like this

option_all | tiny int

hope you understand

[nightwolfz]

Nevermind friend

I got it working thanks to you 😃