Suggestions on how to fix common exploits?

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#1

My game is in very early stages and for that reason it is paid access. We’re on a free weekend this weekend, and already people on V3rmillion are dropping exploits regarding ammunition count and rate of fire.

Ammunition count is an easy fix, I just need to store the ammo for the weapon on the server;
Rate of fire is not as simple. How do I patch rate of fire exploits without screwing over people with bad ping, or messing up things like burst rifles?

2 Likes
#2

Anti fly script - #2 by Lua_Basics (Read what I say and the two forum posts I link.)

Please look things up on the forum before making a post, especially about topics that are extremely common and thoroughly explained.

#3

You could do some registry on the server so if the client is trying to fire faster than the weapon can, it ignores that signal.

2 Likes
#4

The most logical way to fix fire rate is using the leaky bucket algorithm:

There is a bit more explanation of the algorithm further down in the thread, but this would be the gist of how you handle a ton of requests while allowing wiggle room for high ping players.

3 Likes
Should debounces be on the server?
#5

Was literally coming back to this post because I assumed OP wasn’t able to find it by looking it up. Thanks anyways, and OP I wouldn’t kick players or do anything like that. I’d simply deny their shots the damage or if they’re ping exceeds a threshold.

1 Like
#6

Yeah, I read your posts on that on your linked threads; Solid solution. Thank you guys!

#7

This is rough progress on a leak bucket; I add 1 to the FireWeapon dataset every time the player fires. BulletsPerShot is what accounts for burst rifles despite rate of fire. Look good?

Edit:
Time between shots is calculated
1/(RateOfFire/60)

so a rate of fire of 300 == 5 shots per second, or .2 second delay

spawn(function()
		while wait(1) do
			for userid, cache in next, clientdata.LeakBucket do
				if clientdata.Cache[userid].EquippedWeapon then
					local weaponData = require(game.ReplicatedStorage.Weapons:FindFirstChild(clientdata.Cache[userid].EquippedWeapon).Information)
					if weaponData.BulletsPerShot then
						local shotsPerSecond = 1/(1/(weaponData.RateOfFire/60)) * weaponData.BulletsPerShot
						clientdata.LeakBucket[userid].FireWeapon = math.clamp(clientdata.LeakBucket[userid].FireWeapon - shotsPerSecond, 0, 1000)
						if clientdata.LeakBucket[userid].FireWeapon > 1.2 * shotsPerSecond then
							clientdata.Cache[userid].Flagged = true
							--// Flag player
						else
							clientdata.Cache[userid].Flagged = false
						end
					end
				end
			end
		end
	end)
#8

This may not work but I believe you can simulate lag with a vpn and connecting to different countries through it. This should hopefully push you to 100-200+ ping.

#9

I’m already 200 ping on any roblox game lol