client
    var
        obj/something
        obj/O=new
mob
    var
        color

proc/Someproc()
    for(var/client/C)  
        if(C.Something)
            var/icon/R = icon('Some_Thing.dmi',"Something") 
            R.DrawBox(rgb(0,128,0),0,0,32,32)  
            R.DrawBox(rgb(255,255,255), 17, 17-3, 17, 17+3)
            R.DrawBox(rgb(255,255,255), 17-3, 17, 17+3, 17)
            for(var/mob/M in world) 
                if(get_dist(C.mob,M) < 20 && C.mob.z == M.z && C.mob != M)
                    var/x = 16-(C.mob.x - M.x)+1
                    var/y = 16-(C.mob.y - M.y)+1
                    R.DrawBox(M.color, x-1, y-1, x+1, y+1)  
            C.something.icon = R
    spawn(1)
        Someproc()