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Axionize / LightningGrim

Fully async, multithreaded, predictive, open source, 3.01 reach, 1.005 timer, 0.01% speed, 99.99% antikb, "bypassable" 1.8-1.20 anticheat.
GNU General Public License v3.0
7 stars 4 forks source link

No need to express it in words #4

Open Dg32z opened 1 week ago

Dg32z commented 1 week ago

Describe the false positive and how to replicate it

https://github.com/user-attachments/assets/66a71e60-f168-4245-8c49-044af3e994fd

Grim version

ver GrimAC [00:18:29 INFO]: GrimAC version 2.3.69 [00:18:29 INFO]: Libre simulation anticheat designed for 1.21 with 1.8-1.21 support, powered by PacketEvents 2.0. [00:18:29 INFO]: Website: https://grim.ac/ [00:18:29 INFO]: Author: GrimAC

Server version

[00:19:11 INFO]: Checking version, please wait... [00:19:13 INFO]: This server is running Paper version git-Paper-497 (MC: 1.20.4) (Implementing API version 1.20.4-R0.1-SNAPSHOT) (Git: d8d54d9 on ver/1.20.4) You are 2 version(s) behind Download the new version at: https://papermc.io/downloads/paper Previous version: 1.21.1-128-d348cb8 (MC: 1.21.1)

Client version

vanilla 1.20.4

Plugins

[00:19:24 INFO]: Server Plugins (9): [00:19:24 INFO]: Bukkit Plugins: [00:19:24 INFO]: - Apollo-Bukkit, Citizens, GrimAC, LiteBans, LuckPerms, LunarPlugin, PlaceholderAPI, PlugManX, SimpleChat

Axionize commented 6 days ago

Thank you. I'll look into it in a few days when I have time.

EDIT: Are you left and right clicking at the same time? Right clicking and then left clicking? left and then right? What exactly are you doing?

Dg32z commented 4 days ago

Thank you. I'll look into it in a few days when I have time.

EDIT: Are you left and right clicking at the same time? Right clicking and then left clicking? left and then right? What exactly are you doing?

left and right clicking at the same time

Axionize commented 3 days ago

After careful investigation, this appears to have to the same cause as the AirLiquidPlace false. This is an engine limitation (I think it's fixed in V3?) and there's not much I can do about this if you want a quick fix besides copying a model of the world that's 1 tick behind and checking against both that model and the current world model.

You'll either have to bear the cost of 2 async world models per player which would be utterly awful for performance and memory, or you'll have to wait for V3.

I have a few ideas of how to exempt instant break blocks from causing these falses but it'll take some time before I implement them. This will likely not be fixed for at least a few weeks but It's on my todo list.

Axionize commented 2 days ago

UPDATE: I came up with a new idea to fix this while doing something else. Will try to implement next week.

Axionize commented 1 day ago

B11 does not fully fix this but it does mitigate the issue and make it harder to trigger.