No, you would have to check each player of the whole map moving if he is coming closer to the invisible man, and change the color from the invisible to a more visible one. That would have an global effect and would let everyone see the invisible guy.
So, no.

But impossible.
Had a few cool and impossible ideas too, but too bad es isn't that far to make everything possible

Possible, do a check for only the nearest person, enemy if you wish, then set variable accordingly.  Get the distance between the closest person and you and have the variable either divide or multiply depending on the amount you set in percentage.

I guess the simplist way to do this is to reverse how the general "thermal vision" stuff works. Make the race 100% invis but depending on how close another player is they show up as a dim->strong blue orb, to that person only, or something. A good fun est_effect + est_near combo.

Nice idea I must say but unless it's knife you'll have to add in effects for when the player shoots or have it pistol only so that they dont totally bumrape people Fun nonetheless.

However, and forgive me if I am jumping to conclusions, I believe this is beyond your ESS coding abilities at this particular time to do solely alone. Hopefully someone else will understand my idea and do it that way cause I don't have the time to write it up at the moment, I'm sorry.

Not at all.

This is how I'd do it, much like any repeated block.

---
in block load it'd be regcmd'd radius_invis

in the block radius_invis it'd have set 0s and getargvs

it would then check if the player is alive and the round is the same, if those are true then it will pass
  - within this pass:
      it would check everyone in a radius, probably dependant on the skill level, using est_near
      - within the est_near:
         find the distance between the user and the person targeted
         use that to scale alpha from something like 0(furthest away) to 255(really close)
         if wanted you could have a setting in the skill to divide this value afterwards
         do an est_effect which will show only to the person targeted using est_near
      after that it'd have es_delayed 0.5-1.0 radius_invis user radius level round
  - if it doesn't pass?
    does nothing, stops the loop.
----

Only problem with this I could think of is lag. Regeneration works in exactly the same principle but regeneration barely runs once every 3-10s on most servers.

This would need to run at least once a second because if it ran too slow then the effect would not be tracking the player.

D: I hate it when it's easier to code it up than explain, I wanna play Neverwinter Nights

Please note that this is practically an explaination of why regeneration is coded how it is coded:


So if you've poked around the wcs_regeneration block then you should get it fine

false...