What is VDM in FiveM? Definition & Prevention

-- resources/anti-vdm/server.lua
local vdmWarnings = {}
local VDM_THRESHOLD = 3
local DAMAGE_THRESHOLD = 50

RegisterServerEvent('vdm:checkCollision')
AddEventHandler('vdm:checkCollision', function(targetId, damage, speed)
    local source = source
    
    -- Validate input
    if not targetId or not damage or not speed then return end
    
    -- Check if damage and speed exceed thresholds
    if damage > DAMAGE_THRESHOLD and speed > 30 then
        local identifier = GetPlayerIdentifier(source, 0)
        
        -- Initialize warning count
        if not vdmWarnings[identifier] then
            vdmWarnings[identifier] = 0
        end
        
        vdmWarnings[identifier] = vdmWarnings[identifier] + 1
        
        -- Log incident
        local logData = {
            attacker = GetPlayerName(source),
            victim = GetPlayerName(targetId),
            damage = damage,
            speed = speed,
            timestamp = os.time()
        }
        
        TriggerEvent('vdm:logIncident', logData)
        
        -- Take action based on warnings
        if vdmWarnings[identifier] >= VDM_THRESHOLD then
            DropPlayer(source, 'Kicked for VDM violations')
            vdmWarnings[identifier] = 0
        else
            TriggerClientEvent('chat:addMessage', source, {
                args = {'^1[WARNING]', 'VDM detected. Warning ' .. 
                       vdmWarnings[identifier] .. '/' .. VDM_THRESHOLD}
            })
        end
    end
end)

-- resources/anti-vdm/client.lua
local lastCollision = 0
local COLLISION_COOLDOWN = 5000 -- 5 seconds

Citizen.CreateThread(function()
    while true do
        Citizen.Wait(0)
        local playerPed = PlayerPedId()
        
        if IsPedInAnyVehicle(playerPed, false) then
            local vehicle = GetVehiclePedIsIn(playerPed, false)
            
            if GetPedInVehicleSeat(vehicle, -1) == playerPed then
                if HasEntityCollidedWithAnything(vehicle) then
                    local currentTime = GetGameTimer()
                    
                    if currentTime - lastCollision > COLLISION_COOLDOWN then
                        local speed = GetEntitySpeed(vehicle) * 3.6 -- Convert to km/h
                        
                        -- Check for pedestrian collision
                        local coords = GetEntityCoords(vehicle)
                        local closestPed = GetClosestPed(coords.x, coords.y, coords.z, 
                                                         5.0, 1, 0, 0, 0, -1)
                        
                        if DoesEntityExist(closestPed) and IsEntityAPed(closestPed) then
                            local targetPlayer = NetworkGetPlayerIndexFromPed(closestPed)
                            
                            if targetPlayer ~= -1 then
                                local damage = GetEntityHealth(closestPed)
                                TriggerServerEvent('vdm:checkCollision', 
                                                 GetPlayerServerId(targetPlayer), 
                                                 damage, speed)
                            end
                        end
                        
                        lastCollision = currentTime
                    end
                end
            end
        end
    end
end)

# Anti-VDM Configuration
set vdm_enabled true
set vdm_max_warnings 3
set vdm_damage_threshold 50
set vdm_speed_threshold 30
set vdm_log_incidents true
set vdm_webhook "https://discord.com/api/webhooks/YOUR_WEBHOOK_HERE"

# Ensure anti-vdm resource starts
ensure anti-vdm

Rule 2.1 - Vehicle Deathmatch (VDM)
- Using any vehicle as a weapon is prohibited
- Exceptions: Authorized police tactics, sanctioned events
- Punishment: 1st offense - Warning, 2nd - 24h ban, 3rd - Permanent ban

-- Simple reporting command
RegisterCommand('reportvdm', function(source, args, rawCommand)
    local targetId = tonumber(args[1])
    local reason = table.concat(args, ' ', 2)
    
    if not targetId or not reason then
        TriggerClientEvent('chat:addMessage', source, {
            args = {'^1[ERROR]', 'Usage: /reportvdm [player_id] [reason]'}
        })
        return
    end
    
    -- Create report ticket
    local report = {
        reporter = GetPlayerName(source),
        reported = GetPlayerName(targetId),
        reason = reason,
        timestamp = os.date('%Y-%m-%d %H:%M:%S'),
        status = 'pending'
    }
    
    -- Store in database or send to Discord
    TriggerEvent('vdm:createReport', report)
end, false)

-- Check if players are in active scenario
local function isInActiveRP(playerId)
    -- Check database for active scenarios
    -- Return true if player is in police chase, race, etc.
end

-- Add to fxmanifest.lua
resource_monitor_mode 'yes'

ESX = nil
TriggerEvent('esx:getSharedObject', function(obj) ESX = obj end)

-- Add VDM violations to player record
RegisterServerEvent('vdm:recordViolation')
AddEventHandler('vdm:recordViolation', function(targetId)
    local xPlayer = ESX.GetPlayerFromId(source)
    MySQL.Async.execute('INSERT INTO vdm_violations SET identifier = @identifier, timestamp = @timestamp',
    {
        ['@identifier'] = xPlayer.identifier,
        ['@timestamp'] = os.time()
    })
end)

local QBCore = exports['qb-core']:GetCoreObject()

-- Integration with admin menu
QBCore.Commands.Add('checkvdm', 'Check player VDM history', {{name = 'id', help = 'Player ID'}}, true, function(source, args)
    local Player = QBCore.Functions.GetPlayer(tonumber(args[1]))
    if Player then
        -- Fetch VDM history
        MySQL.Async.fetchAll('SELECT * FROM vdm_logs WHERE citizenid = @citizenid', {
            ['@citizenid'] = Player.PlayerData.citizenid
        }, function(result)
            TriggerClientEvent('qb-admin:client:showVDMHistory', source, result)
        end)
    end
end, 'admin')

-- tests/vdm_test.lua
local function testVDMDetection()
    -- Simulate collision event
    local mockData = {
        attacker = 1,
        victim = 2,
        damage = 75,
        speed = 45
    }
    
    TriggerEvent('vdm:checkCollision', mockData.victim, mockData.damage, mockData.speed)
    
    -- Verify warning was issued
    -- Check if log was created
    -- Confirm webhook was triggered
end

-- Database schema
CREATE TABLE vdm_metrics (
    id INT AUTO_INCREMENT PRIMARY KEY,
    date DATE,
    total_incidents INT,
    warnings_issued INT,
    players_kicked INT,
    false_positives INT
);