[reinert]

Well I don't understand it, even if my surname is Dutch, but I'm officialy Estonian.

[8088]

Oh, too bad. For some reason I assumed you were Flamish. However, I hope the article fysiks linked to is sufficient.

[reinert]

Well my PlayerSkill values are way lower, ( -100 ~ 500 ). So what optimum value of exponentiation should I use ?

[Scone]

You could just knock one of the zeroes off and use 1.005 instead of 1.0005. You can experiment a bit with Wolfram Alpha (or a calculator). But I think skill values in the 1000's would be better because otherwise you'll get lots of players with the same scores (unless you don't have many players, or you use a floating point value for the skill).

[reinert]

Well yea, maybe you are right.

But on server start, every player will start with 0 Skill, so wouldn't it be a problem for that calculating ?

[Scone]

Nope. 0 - 0 = 0, and x^0 = 1 (no matter what x is).

Basically, if two players have the same skill, the multiplier will always be 1, even if they both have zero skill.

[reinert]

Ok. I will try it, thank you for your answer, I'd never though about exponentiation.

[Scone]

No problem, hope it works out.

[reinert]

Somewhy when both Attacker and Victim skills are equal to 0, the result of iSkill is = -32768 or 32767
iSkill is smallint(6) in MySQL.
Where is the problem ? My code :

new Float:pKillerDifference = iSkill[victim] - iSkill[attacker] + 0.0;
new Float:pKillerKof;
pKillerKof = 1.0008^pKillerDifference;
iSkill[attacker] += floatround(pKillerKof);

[Scone]

I think the problem is that the difference isn't being implicitly converted to a float, it's just being tagged as one.

Personally, I would make iSkill a floating point value, and only round it when displaying it to the user - otherwise players don't get any skill when killing someone with less skill than themselves (or always get 1 skill no matter how skilled they are). Doing that should fix both problems, and you'd get more accurate results.