jesse
9a2f2d4dc9
CI / quality (push) Failing after 5m53s
- Rojo + Wally project; ProfileStore (loleris) for safe saves - Shared: GameConfig, Cars (RX-7 free starter), ProfileTemplate, Remotes - Server: DataManager, Economy, CarManager, RaceManager, MapBuilder, AntiCheat - Client: neon HUD + Garage/Dealership UI (buy/equip/upgrade), race/daily - Procedural Tokyo expressway (spawn pad, finish line, neon pylons, kill walls) - CI workflow (Gitea/GitHub), Makefile, selene+stylua clean, rojo builds - Docs: README, GDD, realistic solo ROADMAP
82 lines
2.3 KiB
Luau
82 lines
2.3 KiB
Luau
--!strict
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--[[
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AntiCheat.luau (SERVER)
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MVP-level movement sanity check. Not a fortress — a speed bump that catches
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obvious speed/teleport hacks. Because money & car ownership are ALREADY
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server-authoritative (Economy validates everything), the main client attack
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surface left is movement, so we watch that.
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Approach: sample each player's HRP position periodically; if they cover
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ground implying a sustained speed above MaxPlausibleSpeed, snap them back
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to their last valid position. Generous threshold to avoid false positives
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from legit fast cars.
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]]
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local Players = game:GetService("Players")
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local RunService = game:GetService("RunService")
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local ReplicatedStorage = game:GetService("ReplicatedStorage")
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local GameConfig = require(ReplicatedStorage.Shared.GameConfig)
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local AntiCheat = {}
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type Track = { lastPos: Vector3, lastValid: CFrame }
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local tracked: { [Player]: Track } = {}
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local SAMPLE_INTERVAL = 0.5
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local function hrpOf(player: Player): BasePart?
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local char = player.Character
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return char and char:FindFirstChild("HumanoidRootPart") :: BasePart?
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end
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function AntiCheat.init()
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local function watch(player: Player)
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player.CharacterAdded:Connect(function(char)
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local hrp = char:WaitForChild("HumanoidRootPart", 10) :: BasePart?
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if hrp then
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tracked[player] = { lastPos = hrp.Position, lastValid = hrp.CFrame }
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end
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end)
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end
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for _, p in ipairs(Players:GetPlayers()) do
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watch(p)
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end
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Players.PlayerAdded:Connect(watch)
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Players.PlayerRemoving:Connect(function(p)
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tracked[p] = nil
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end)
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local accum = 0
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RunService.Heartbeat:Connect(function(dt)
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accum += dt
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if accum < SAMPLE_INTERVAL then
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return
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end
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local interval = accum
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accum = 0
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for player, track in pairs(tracked) do
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local hrp = hrpOf(player)
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if not hrp then
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continue
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end
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local pos = hrp.Position
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-- Falling doesn't count (avoid flagging big drops). Only guard XZ plane.
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local horizontal = Vector3.new(pos.X - track.lastPos.X, 0, pos.Z - track.lastPos.Z).Magnitude
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local hSpeed = horizontal / interval
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if hSpeed > GameConfig.MaxPlausibleSpeed then
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-- Snap back: likely a speed/teleport hack.
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hrp.CFrame = track.lastValid
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hrp.AssemblyLinearVelocity = Vector3.zero
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else
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track.lastValid = hrp.CFrame
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end
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track.lastPos = hrp.Position
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end
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end)
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end
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return AntiCheat
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