Make it so users can't crash servers while in creative

[DeltaRays]

A few days ago the connections event began and I developed a system to make it almost impossible for users to crash the server, here is the script we used if anyone needs it:

Note: It requires skBee for the NBT

The inventory click one sets the slot to air, although since it can only set it to air after one tick people would still be able to put items in hoppers or other inventories. That's why we also disabled opening inventories (excluding the player's inventory)

We did something similar to that for clicking.

We disabled pistons retracting because they could be used for lag machines, dispensing just in case a dangerous item managed to get into a dispenser, spawning entities and going to other dimensions.

31 July 2020

Added 'on swap hand items' as that can be spammed to crash servers (although I haven't tested whether or not it works)

on drop:
  cancel event

on inventory click:
  event-item is not a map or a player head item
  event-slot's nbt is not set:
    wait 1 tick
    length of event-slot's nbt > 6
    set event-slot to air
on inventory open:
  cancel event

on click:
  if length of nbt of player's tool > 4:
    player's tool is not a map or a player head item
    cancel event
    set player's tool's nbt to "{}"
  if length of (slot 40 of player's nbt) > 4:
    slot 40 of player is not a map or a player head item
    cancel event
    set (slot 40 of player)'s nbt to "{}"

    
on piston retract:
  cancel event

on dispense:
  cancel event


on spawn:
  cancel event

on portal:
  cancel event
  
on swap hand items:
  set metadata value "swaps" of player to 0 if metadata value "swaps" of player is not set
  add 1 to metadata value "swaps" of player
  if metadata value "swaps" of player > 3:
    cancel event
  else if metadata value "swaps" of player is 1:
    wait 5 seconds
    set metadata value "swaps" of player to 0

 

Edited July 31, 2020 by DeltaRays
Updated to add 'on swap hand items'

[TacticalModz]

Im curious can you set a NBT spawn egg back to a vanilla spawn egg with skript? I cant find anything about it anywhere as i know more crashes than this.

[farwl]

cool stuff

[chillins]

This looks epic

[DeltaRays]

On 7/30/2020 at 2:54 AM, TacticalModz said:

Im curious can you set a NBT spawn egg back to a vanilla spawn egg with skript? I cant find anything about it anywhere as i know more crashes than this.

I haven't looked into it but you probably could just set the nbt to {}

[TacticalModz]

1 hour ago, DeltaRays said:

I haven't looked into it but you probably could just set the nbt to {}

hmm alright cheers!

[farwl]

On 7/30/2020 at 5:46 PM, chillins said:

This looks epic

big epic

[CroompedHelp]

On 7/31/2020 at 12:38 PM, DeltaRays said:

I haven't looked into it but you probably could just set the nbt to {}

ay delta! long time no see

anyways it'll be cool to add 

 

on drop:

 send "&6&l[Servername] You can't drop that."

cancel event

 

Or something like that.