#define MAX_DISTANCIA 30.0

// Gamemode init
SetTimer("AntiNameTag",500,true);


forward AntiNameTag();
public AntiNameTag()
{
    foreach(Player,playerid)
    {
        foreach(Player,i)
        {
            if(i == playerid)    continue;
            if(GetPlayerDistanceFromPlayer(playerid, i) <= MAX_DISTANCIA)
            {
                ShowPlayerNameTagForPlayer(playerid,i,true);
            }
            else
            {
                ShowPlayerNameTagForPlayer(playerid,i,false);
            }
        }
    }
}
Float:GetPlayerDistanceFromPlayer(playerid, targetid)
{
    new Float:Pos[3];
    GetPlayerPos(playerid, Pos[0], Pos[1], Pos[2]);
    return GetPlayerDistanceFromPoint(targetid, Pos[0], Pos[1], Pos[2]);
}