Added vanish module, a simple replacement for the essentials version

I tried to use underscores where ever I could ^^

main.py

@@ -90,7 +90,9 @@ shared["load_modules"] = [
     # vanish toggle module - temporary fix
     "vanishfix",
     # obisidian mining punishment plugin
-    "punishments"
+    "punishments",
+    # a simple replacement for the buggy essentials /vanish
+    "vanish"
 ]
 shared["modules"] = {}
 for module in shared["load_modules"]:

vanish.py

@@ -0,0 +1,120 @@
+from helpers import *
+from basecommands import simplecommand
+from basecommands import Validate
+
+vanished = []
+
+
+def is_authorized(player):
+    return player.hasPermission("utils.vanish")
+
+
+def is_vanished(player):
+    return uid(player) in vanished
+
+
+#this can be used to silently set the vanished state of a player
+def set_state(player, state):
+    if state == is_vanished(player):
+        return
+
+    if state:
+        enable_vanish(player)
+    else:
+        disable_vanish(player)
+
+
+def enable_vanish(target):
+    vanished.append(uid(target))
+    for player in list(server.getOnlinePlayers()):
+        player.hidePlayer(target)
+
+
+def disable_vanish(target):
+    vanished.remove(uid(target))
+    for player in list(server.getOnlinePlayers()):
+        player.showPlayer(target)
+
+
+@simplecommand("vanish", 
+        aliases = ["v"],
+        usage = "[on/off]",
+        description = "Toggles vanish mode, hiding you and your online status \nfrom other players.",
+        senderLimit = 0,
+        amin = 0,
+        amax = 1,
+        helpNoargs = False,
+        helpSubcmd = True
+)
+def vanish_command(sender, command, label, args):
+    try:
+        current_state = is_vanished(sender)
+        new_state = not current_state
+
+        if len(args) == 1:
+            arg = args[0].lower()
+            if arg == "on":
+                new_state = True
+            elif arg == "off":
+                new_state = False
+
+        if current_state == new_state:
+            return "&cYou were %s vanished!" % ("already" if current_state else "not yet")
+
+        set_state(sender, new_state)
+        return "&a%s vanish mode!" % ("Enabled" if new_state else "Disabled")
+    except:
+        error(trace())
+
+
+@hook.event("player.PlayerJoinEvent")
+def on_player_join(event):
+    player = event.getPlayer()
+
+    if not is_authorized(player):
+        for uuid in vanished:
+            player.hidePlayer(retrieve_player(uuid))
+
+    elif is_vanished(player):
+        msg(player, "&cKeep in mind that you are still vanished! Use /vanish to disable.")
+
+
+@hook.event("player.PlayerQuitEvent")
+def on_player_quit(event):
+    player = event.getPlayer()
+
+    if not is_authorized(player):
+        for uuid in vanished:
+            player.showPlayer(retrieve_player(uuid))
+
+
+@simplecommand("vanishother",
+        usage = "{player} [on/off]",
+        description = "Toggles vanish mode for someone, hiding them and their online status from other players.",
+        amin = 1,
+        amax = 2,
+        helpNoargs = True,
+        helpSubcmd = True)
+def vanishother_command(sender, command, label, args):
+    target = server.getPlayer(args[0])
+    Validate.notNone(target, "&cThe specified player is not online")
+
+    current_state = is_vanished(target)
+    new_state     = not current_state
+
+    if len(args) == 2:
+        arg = args[1].lower()
+        if arg == "on":
+            new_state = True
+        elif arg == "off":
+            new_state = False
+
+    if current_state == new_state:
+        return "&cThat player was already vanished!" if current_state else "&cThat player was not yet vanished!"
+
+    set_state(target, new_state)
+
+    enabled_str = "enabled" if new_state else "disabled"
+    if target != sender:
+        msg(target, "&aVanish mode %s by %s" % (enabled_str, sender.getDisplayName() if is_player(sender) else "&9CONSOLE"))
+    return "&aVanish mode %s%s" % (enabled_str, " for " + target.getDisplayName() if target != sender else "")