change the position of letters

change the position of letters - Printable Version

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+--- Thread: change the position of letters (/showthread.php?tid=625194)

change the position of letters - GoldenLion - 29.12.2016

Hi, is it possible to randomize the positions of the letters of a word? I mean like let's say you get a word "apple" then it changes the positions of the letters and one time it will look something like "plepa" and other time "eaplp" etc. I want it to be totally random so players could unscramble these words. I don't want to make it like that "apple" is always "eaplp" It needs to be different every time. Is that possible?

Re: change the position of letters - SyS - 29.12.2016

PHP код:



   new swap,index,i;

   new str[]="Hello";

   while(str[i]!='\0') 

    { 

        swap=str[i]; 

        index=random(sizeof(str)-1); 

        str[i] = str[index]; 

        str[index]=swap; 

        i++; 


    }

    printf(str);

Re: change the position of letters - GoldenLion - 29.12.2016

Thank you, it works, but sizeof(str) needs to be changed to strlen(str).

Re: change the position of letters - SyS - 30.12.2016

Quote:

Originally Posted by GoldenLion

Thank you, it works, but sizeof(str) needs to be changed to strlen(str).

Not in this case as I assigned the string leaving the compiler to determining the cell required so we can avoid an overhead of strlen replacing with a constant which is better optmised.

Re: change the position of letters - GoldenLion - 30.12.2016

Quote:

Originally Posted by Sreyas

Not in this case as I assigned the string leaving the compiler to determining the cell required so we can avoid an overhead of strlen replacing with a constant which is better optmised.

Ah, alright. Well I did that in a command and used the params with that so it gave me an error. :P

Re: change the position of letters - SyS - 30.12.2016

Quote:

Originally Posted by GoldenLion

Ah, alright. Well I did that in a command and used the params with that so it gave me an error. :P

yeahhh my bad i forgot that it will give error in commonly using compiler (not in modern) as the array size is unknown due as checking is done before calculation.

Re: change the position of letters - SickAttack - 30.12.2016

pawn Код:

ScrambleString(string[])
{
    for(new i = 0, j = strlen(string), k = random(j); i < j; i ++, k = random(j))
    {
        i != k && (string[i] ^= string[k], string[k] ^= string[i], string[i] ^= string[k]);
    }
    return string;
}

Re: change the position of letters - admantis - 30.12.2016

Quote:

Originally Posted by SickAttack

pawn Код:

ScrambleString(string[])
{
    for(new i = 0, j = strlen(string), k = random(j); i < j; i ++, k = random(j))
    {
        i != k && (string[i] ^= string[k], string[k] ^= string[i], string[i] ^= string[k]);
    }
    return string;
}

please explain how does it work?

Re: change the position of letters - Konstantinos - 30.12.2016

Quote:

Originally Posted by admantis

please explain how does it work?

https://en.wikipedia.org/wiki/Fisher...3Yates_shuffle

Quote:

Originally Posted by GoldenLion

Is that better than Sreyas' one?

It is the modern and "inside-out" versions and to answer to your question: yes, it is.

Re: change the position of letters - GoldenLion - 30.12.2016

Quote:

Originally Posted by Konstantinos

https://en.wikipedia.org/wiki/Fisher...3Yates_shuffle

It is the modern and "inside-out" versions and to answer to your question: yes, it is.

Thanks.