Decimal Places Script

[Skyld]

Earlier, I found myself writing a script where I needed to be able to round a value to so many decimal places. I do not believe Graal has a built-in method of doing this.
I wrote this code to do it. I hope that somebody may find it useful, either to use or to learn from.

NPC Code:

---

//#CLIENTSIDE

if (playerchats) {

  tokenize #c;

  if (strequals(#t(0),dp)) {

    // ***Save the data first

    setstring this.first,#t(1); //<- INPUT NUMBER TO BE ROUNDED

    this.places=strtofloat(#t(2)); //<- NUMBER OF DECIMAL PLACES TO ROUND TO

    // ***Split the data so that it can be taken into two parts (part1.part2)

    tokenize2 .,#s(this.first);

    setstring this.second_1,#t(0);

    setstring this.second_2,#t(1);

    // ***Then split up the second half of the data so we can work with it

    setstring this.third_1,#e(0,this.places,#s(this.second_2)); // All the decimal places

    setstring this.third_2,#e(0,this.places-1,#s(this.second_2)); // All the decimal places minus 1

    setstring this.third_3,#e(this.places,1,#s(this.second_2)); // The decimal place after the round value

    setstring this.third_4,#e(this.places-1,1,#s(this.second_2)); // The decimal place at the round value

    // ***Now start reconstructing the decimal point

    // ***The first instance here builds the number back up as it was

    // ***The second instance builds it back as if the last decimal place has a number

    // ***lower than 5 after it

    // ***But first we need to check if we were given less numbers than DP specified

    if (strtofloat(#s(this.third_3))>=5) setstring this.result,#s(this.second_1).#s(this.third_2)#s(t  his.third_4);

    else setstring this.result,#s(this.second_1).#s(this.third_2)#v(s  trtofloat(#s(this.third_4))-1);

    // ***Now check whether the result was valid and then set the this.result value

    if (strequals(#e(strlen(#s(this.result))-2,2,#s(this.result)),-1)) setstring this.final,#s(this.first);

    else setstring this.final,#s(this.result);

    this.final = strtofloat(#s(this.final));

    // ***And give the player the value via chattext

    setplayerprop #c,#s(this.final);

  }

}

---

It works at the moment by saying "dp <number> <places>" which will round <number> to so many decimal <places>. If you specify too many decimal <places> for the <number>, it simply returns the <number> you originally gave it.
I do realise that there is alot of unnecessary code in there, but it may, again, help somebody learn.
It returns the final value in both the string and variable `this.final', as you can most likely see.

[Slash-P2P]

NPC Code:

---

//#CLIENTSIDE

if (playerchats && startswith(dp,#c)) {

  tokenize #c;

  this.places = strtofloat(#t(2));

  setplayerprop #c,#e(0,indexof(.,#t(1))+this.places,#t(1));

}

---

Wouldn't something like that do the same thing?

[Skyld]

Well I wrote mine in shorter code than it is, but then expanded it for use here.

[Lance]

Other than trailing zeroes being ignored, why not do it simply? Here, I'll copy your input format:

NPC Code:

---

//#CLIENTSIDE

if (playerchats) {

  tokenize #c;

  if (strequals(#t(0),dp)) {

    this.num=strtofloat(#t(1));

    this.maxplaces=strtofloat(#t(2));

    this.newnum=int(this.num * 10^this.maxplaces + 0.5) / 10^this.maxplaces;

    setplayerprop #c,#v(this.newnum);

  }

}

---

[Skyld]

I suppose both examples make whole amounts more sense, really. :P