Making things invisble with sight

ID:1657206
 
Aug 14 2014, 5:11 am
(See the best response by Aeon Games Inc.)
Code:
        var/obj/powers/lockon/l=new()
        l.loc=src.loc
        sleep(10)
        usr.sight |= ~(l)


Problem description:
So what im trying to do is make something invisble or visible to certain players. I thought i could do something like this as the reference you can turn off mob/obj/turf sights. The method i have didnt work but is there a way to turn off sight for certain obj type.

Obviously i was experimenting with a lock on system. You click and a cursor would show below. I only want the player to show this cursor. Yes i could put it on screen view, but i from what i recall it wont be very nice in moving along with an enemy. Its better for hud things

Aug 14 2014, 5:59 am
nevermind i believe i have figured it out, i had to set the object to begin with invisibility of 1 or greater
Aug 14 2014, 6:04 am
well know a new problem comes, i set it to invisbility=1 or greater but when i do

usr.sight |= ~(l)

it makes every object of l become visible not the l i specifically identified
Aug 14 2014, 12:24 pm
I have never seen the sight variable used in such a way, leading me to believe you are using it incorrectly. Check this out for more information on sight.

Moreover, I believe what you want to use are image objects.
Aug 14 2014, 1:06 pm
I think I've done just about everything you can with this type of thing at one time or another. I don't understand exactly what you are trying to do, please tell us a bit more about what you are aiming for, and I'll do my best to help you get it working.
Aug 14 2014, 2:08 pm
Best response
As said above by FKI image's are probably what you're looking to do.
 var/image/I = image('lockon.dmi',src)
 usr<<I


At least if I remember right, that's one way of doing it. Haven't had to do something like this in awhile but hope it helps.
Aug 16 2014, 2:40 am
aeon games Inc, thank you. I had already found what i needed on another forum. But that is exactly what i needed. I use images instead of messing with sight. Anyway thank you anyway.

I think invisibility is handled really poorly after fidling with it and discovering how sight and invisiblity work.