How to calculate distance?

Started by p0ker Tournament #2 VIP
06/10/2013 14:19
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p0ker Tournament #2 VIP06/10/2013 14:19(edited 06/10/2013 14:23)

Hey guys,

i have some questions about lj distance (or cj/dcj/sbj doesnt have matter)
I already know some facts about this like gain + prestrafe = maxspeed and gain/airtime for 1 strafe and "lose gain" for 1 strafe.
But how actually we can calculate one lj distance with jumpstats (without the distance) ?
Is it something about maxspeed/airtime = ? or ... ?

Btw. Anyway sorry for my bad english.

ShoCkrecord holder Tournament #2 VIP08/10/2013 00:39

Basically you are asking for a distance formula? Never got to think about it lol, very interesting.

znx08/10/2013 02:57

Ask xPaw or someone ;3 .
Anyway, all I know about calculation are 2 things, how to calculate the gain from just strafestats and how to calculate distance if pre was higher (low pre stats i.e.)

nerv.08/10/2013 06:58

Start = (Xa , Ya)
Finish = (Xb , Yb)
D = [(Xb - Xa)² + (Yb - Ya)²]< square

I think the distance is calculated by getting the coordenates of point A and B (where you jump and where you land) not sure, but if i were programing this would be the easier way to do it.

p0ker Tournament #2 VIP08/10/2013 10:21(edited 08/10/2013 10:39)

if there is such a formula , maybe we will can calculate longjumps limit. :D
@ShocK i asked about this because I was wondering how really is created jumpstats.
@nerv. can u explain some calculations with your formula (maybe CJ stats?)

EDIT: If we have this parameters like:
78-79.00000 gain
12 strafes
8,3 airtime for single strafe
277.xxx pre
and formula for distance
what we will get?

znx08/10/2013 10:47

Originally posted by nerv.
Start = (Xa , Ya)
Finish = (Xb , Yb)
D = [(Xb - Xa)² + (Yb - Ya)²]< square

I think the distance is calculated by getting the coordenates of point A and B (where you jump and where you land) not sure, but if i were programing this would be the easier way to do it.


i guess he meant how to calculate distance with stats rather than distance with coordinates, idk though :3

p0ker Tournament #2 VIP08/10/2013 11:35

lets check both of them

Fliborecord holder Tournament #208/10/2013 12:40

Originally posted by nerv.
Start = (Xa , Ya)
Finish = (Xb , Yb)
D = [(Xb - Xa)² + (Yb - Ya)²]< square

I think the distance is calculated by getting the coordenates of point A and B (where you jump and where you land) not sure, but if i were programing this would be the easier way to do it.

That's the Pythagorean theorem and the mathematics behind calculating LJ distance from stats with numerous parameters (or even just prestrafe and number of 100% sync strafes as parameters) is much, much more advanced. I do think lt.Rat tried to calculate the perfect longjump many years ago but I'm not sure if he was ever successful with that.

Limb008/10/2013 12:43

i read that exolent found perfect formula for longjump stats, thats exolent's lj stats plugin...how i remember...

zteuq08/10/2013 15:02

Originally posted by znx
and how to calculate distance if pre was higher (low pre stats i.e.)


There are too many variables for this to be precise aka you can't "calculate" it and think it's correct.

random Tournament #308/10/2013 15:18

No math in longjumps

nerv.08/10/2013 15:19

i know he want the magical formula, but i dont think its even possible with these parameters, there are so much more on the line than prestrafe, gain , airtime etc. there are some fps issues, duck timing, strafe angle... i dont think anyone will lose time to do such a thing.

but the best lj would be with infinite strafes.


and he asked how the jumpstats calculate it , than edited the first post .

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