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I don't think you, or the uploader, understand how kill auras work. What they do is send packets to the server which aren't triggered by the player. For example, the client will send a PlayerLookPacket (I can't remember the actual name of the packet, and I don't really want to look through the client source right now), then another which indicates that the player's sword has been swung when it finds a target. To the server it looks like the player has looked at the target and attacked. However, on the client's side, you don't see this change.
Sorry if any of the information above is inaccurate, it's been a while.
It would be incredibly easy for this to be bypassed though. All you have to do is check for visibility, health or any other properties the entity has that normal players don't. I believe most clients check for entity visibility anyway.Well this is actually an unnecessary way to do it with command blocks.
Here's how I would do it. This was actually on a different server.
A mod types in the command /killaura (PlayerName)
That will spawn a NPC/Entity/Fake Player with unlimited health above the player's head which nobody can see except for the staff member who issued the command.
Now because KillAura/Forcefield attacks every entity that's around him, (Sorta the way LukeTheCat explained it) whether it's up, down, backwards, sideways or forward, he will always keep hitting the entity above him. But he won't know it. And so the staff member can easily see if he's using KillAura/Forcefield.
This is how LukeTheCat explained it Kill Aura
There is a hack called "triggerbot" which I have heard people call it, and apparently it swings only when the entity is directly in front of you, not at the side or above. If we had that system, "trigger-botters" would bypass that. But that would be good for Kill Aura/Forcefield.Well this is actually an unnecessary way to do it with command blocks.
Here's how I would do it. This was actually on a different server.
A mod types in the command /killaura (PlayerName)
That will spawn a NPC/Entity/Fake Player with unlimited health above the player's head which nobody can see except for the staff member who issued the command.
Now because KillAura/Forcefield attacks every entity that's around him, (Sorta the way LukeTheCat explained it) whether it's up, down, backwards, sideways or forward, he will always keep hitting the entity above him. But he won't know it. And so the staff member can easily see if he's using KillAura/Forcefield.
This is how LukeTheCat explained it Kill Aura
Well triggerbot isn't as ad and bad as Kill Aura.There is a hack called "triggerbot" which I have heard people call it, and apparently it swings only when the entity is directly in front of you, not at the side or above. If we had that system, "trigger-botters" would bypass that. But that would be good for Kill Aura/Forcefield.
I don't see a lot of "trigger-botters" around though. The only ones I seem to run into are reach hackers. Sometimes, not very often though, I run into hackers with killaura where they're looking at my nametag thingy.... too obvious!