[HELP] How to make this script only available to admins?

Tokio · October 29, 2017

I downloaded this script ( https://community.multitheftauto.com/index.php?p=resources&s=details&id=12899 ) from the community. But i want make this only available for admins. How to make this?

(Sorry for my very bad english:/)

MIKI785 · October 30, 2017

If it's server-sided then simply use hasObjectPermissionTo or isObjectInACLGroup.

Storm-Hanma · October 30, 2017

As I think the resource is compiled if not pls post both client or server side code here

Tokio · October 30, 2017

12 hours ago, Khadeer143 said:

As I think the resource is compiled if not pls post both client or server side code here

Client side:

--
-- c_gravityWheels.lua
--

local gravityTab = {}

local enableBindKey = true
local enableGravOnStart = false

local lerpValue = 0.95 -- the closer to 1 the slower the transition
local updatePauseLocal = 15 -- update pause for localPlayer (miliseconds)
local updatePauseGlobal = 100 -- update pause for others (miliseconds)
local searchVector = {0, 2.3, -6}

local theTikGap = 0.2 -- here you set how many seconds to wait after switching gravity wheels on/off
local switch_key = 'g' -- define the key that switches the gravity effect

local searchVectorLen = nil

function getVehicleGravityVector(thisVeh, xVec, yVec, zVec)
	local px, py, pz = getElementPosition(thisVeh)
	local offX, offY, offZ = getPositionFromElementOffset(thisVeh, xVec, yVec, zVec)
	if not isLineOfSightClear(px, py, pz, offX, offY, offZ, true, false, false, true) then	
		local i:~, hitX, hitY, hitZ, _, normalX, normalY, normalZ = processLineOfSight(px, py, pz, offX, offY, offZ, true, false, false, true)
		if normalZ > 0.96 then
			--dxDrawLine3D(px, py, pz, hitX, hitY, hitZ, tocolor(0, 0, 255, 230), 2)
			return {0, 0, -1} 
		end
		local grnDst = getDistanceBetweenPoints3D(px, py, pz, hitX, hitY, hitZ)	
		local col = tocolor (0, 255, 0, 230)
		--dxDrawLine3D(px, py, pz, hitX, hitY, hitZ, tocolor(0, 255, 0, 230), 2)
		return {-normalX, -normalY, -normalZ}
	else
		--dxDrawLine3D(px, py, pz, offX, offY, offZ, tocolor(255, 0, 0, 230 ), 2)
		return {0, 0, -1}
	end
end


-- this function sets gravity based on surface normals (use only for localPlayer)
function localVehicleGravity(thisVeh)
	local lerpAdj = lerpValue ^ (25 / localFPS)
	local rx2, ry2, rz2, rx1, ry1, rz1
	if gravityTab[thisVeh].vec then
		rx2, ry2, rz2 = unpack(gravityTab[thisVeh].vec)
	else
		gravityTab[thisVeh].vec	= {0, 0, -1}
		rx2, ry2, rz2 = unpack(gravityTab[thisVeh].vec)
	end
	rx1, ry1, rz1 = unpack(getVehicleGravityVector(thisVeh, searchVector[1], searchVector[2], searchVector[3]))
	gravityTab[thisVeh].vec = {lerpAngle(rx1, rx2, lerpAdj), lerpAngle(ry1, ry2, lerpAdj), lerpAngle( rz1, rz2, lerpAdj)}
	return setVehicleGravity(thisVeh, normalizeVector(unpack(gravityTab[thisVeh].vec)))
end


function smoothGravityNormal(thisVeh)
	local lerpAdj = lerpValue ^ (25 / localFPS) 
	local rx2, ry2, rz2 = unpack(gravityTab[thisVeh].vec)
	local rx1, ry1, rz1 = 0, 0, -1
	gravityTab[thisVeh].vec = {lerpAngle(rx1, rx2, lerpAdj), lerpAngle(ry1, ry2, lerpAdj), lerpAngle( rz1, rz2, lerpAdj)}
	setVehicleGravity(thisVeh, unpack(gravityTab[thisVeh].vec))
end

-- this function sets gravity just like an old magnet whels script (for other players)
function globalVehicleGravity(thisVeh)
	local px, py, pz = getElementPosition(thisVeh)
	local offX, offY, offZ = getPositionFromElementOffset(thisVeh, 0, 0, -searchVectorLen)
	if not isLineOfSightClear(px, py, pz, offX, offY, offZ, true, false, false, true) then
		local teX, teY, teZ = normalizeVector(offX - px, offY - py, offZ - pz)
		setVehicleGravity(thisVeh, teX, teY, teZ)
	else
		setVehicleGravity(thisVeh, 0, 0, -1)
	end
end


----------------------------------------------------------------------------------------------------------------------------
-- switching
----------------------------------------------------------------------------------------------------------------------------
local isGWEnabled = false

function switchGravityWheels(doEnable)
	local thisVeh = getPedOccupiedVehicle(localPlayer)
	if not thisVeh then return false end
	if not getVehicleOccupant(thisVeh, 0) == localPlayer then 
		return false
	end
	if not gravityTab[thisVeh] then
		gravityTab[thisVeh] = {}
		gravityTab[thisVeh].enable = false
		gravityTab[thisVeh].vec = {0, 0, -1}	
	end
	gravityTab[thisVeh].enable = doEnable
	triggerServerEvent("onSwitchGravityWheels", resourceRoot, gravityTab[thisVeh].enable, thisVeh)
end

local getLastTack = getTickCount()
function toggleGravityWheels()
	local thisVeh = getPedOccupiedVehicle(localPlayer)
	if not thisVeh then return end
	if not getVehicleOccupant(thisVeh, 0) == localPlayer then 
		return
	end
	if (getTickCount() - getLastTack < theTikGap * 1000) then 
		outputChatBox('Gravity Wheels: Wait '..theTikGap..' seconds.', 255, 0, 0) 
		return
	end
	if not gravityTab[thisVeh] then
		gravityTab[thisVeh] = {}
		gravityTab[thisVeh].enable = false
		gravityTab[thisVeh].vec = {0, 0, -1}	
	end
	gravityTab[thisVeh].enable = not gravityTab[thisVeh].enable
	triggerServerEvent("onSwitchGravityWheels", resourceRoot, gravityTab[thisVeh].enable, thisVeh)
	getLastTack = getTickCount()
end

function gravityWheelsPlayerQuit(thisPed, thisVeh)
	if thisVeh then
		if not gravityTab[thisVeh] then
			gravityTab[thisVeh] = {}
		end
		gravityTab[thisVeh].enable = false
		gravityTab[thisVeh].vec = {0, 0, -1}
		setVehicleGravity(thisVeh, 0, 0, -1)
	end
end

function gravityWheelsSwitch(isEnable, thisPed, thisVeh)
	if thisVeh then
		if not gravityTab[thisVeh] then
			gravityTab[thisVeh] = {}
		end
		gravityTab[thisVeh].enable = isEnable
		if thisPed ~= localPlayer then
			gravityTab[thisVeh].vec = {0, 0, -1}
			setVehicleGravity(thisVeh, 0, 0, -1)
		else
			isGWEnabled = gravityTab[thisVeh].enable
		end
	end
end

function gravityWheelsReset(thisPed, thisVeh)
	if thisVeh then
		if not gravityTab[thisVeh] then
			gravityTab[thisVeh] = {}
		end
		gravityTab[thisVeh].enable = false
		gravityTab[thisVeh].vec = {0, 0, -1}
		setVehicleGravity(thisVeh, 0, 0, -1)
		if thisPed == localPlayer then
			isGWEnabled = gravityTab[thisVeh].enable
		end
	end
end

----------------------------------------------------------------------------------------------------------------------------
-- events
----------------------------------------------------------------------------------------------------------------------------
addEventHandler("onClientResourceStart", getResourceRootElement(getThisResource()), function()
	searchVectorLen = vectorLength(searchVector[1], searchVector[2], searchVector[3])
	triggerServerEvent("onPlayerStartGravityWheels", resourceRoot, enableGravOnStart)
	if enableBindKey then
		outputChatBox('Hit '..switch_key..' to turn on/off gravity wheels', 255, 155, 0)
		bindKey(switch_key, "down", toggleGravityWheels)
	end
end
)

addEventHandler("onClientResourceStop", getResourceRootElement(getThisResource()), function()
	for index,thisVeh in ipairs(getElementsByType("vehicle")) do
		if gravityTab[thisVeh] then
			setVehicleGravity(thisVeh, 0, 0, -1)
		end
	end
end
)

local scx, scy = guiGetScreenSize()
addEventHandler("onClientRender", root,
function()
	dxDrawText("Gravity Wheels: "..tostring(isGWEnabled), scx * 0.78, scy * 0.25)
	local thisVeh = getPedOccupiedVehicle(localPlayer)
	if thisVeh then
		if gravityTab[thisVeh] then
			if gravityTab[thisVeh].enable then
				localVehicleGravity(thisVeh)
			else
				if gravityTab[thisVeh].vec then
					if gravityTab[thisVeh].vec[3] > -0.99999999 then
						smoothGravityNormal(thisVeh)
					end
				end
			end
		end
	end
end
)
	
local getLastTick = getTickCount()
addEventHandler("onClientRender", root,
function()
	if (getTickCount() - getLastTick < updatePauseGlobal) then return end
	for id,thisPed in ipairs(getElementsByType("player")) do
		if thisPed ~= localPlayer then
			local thisVeh = getPedOccupiedVehicle(thisPed)
			if thisVeh then
				if isElementStreamedIn(thisVeh) then
					if gravityTab[thisVeh] then
						if gravityTab[thisVeh].enable then
							if isElementStreamedIn(thisVeh) then
								globalVehicleGravity(thisVeh)
							end
						end
					end
				end
			end
		end
	end
	getLastTick = getTickCount()	
end
)
				  
				  
addEvent("gravityWheelsPlayerQuit", true)
addEvent("gravityWheelsPlayerSwitch", true)
addEvent("gravityWheelsPlayerReset", true)
addEventHandler("gravityWheelsPlayerQuit", resourceRoot, gravityWheelsPlayerQuit)
addEventHandler("gravityWheelsPlayerSwitch", resourceRoot, gravityWheelsSwitch)
addEventHandler("gravityWheelsPlayerReset", resourceRoot, gravityWheelsReset)

----------------------------------------------------------------------------------------------------------------------------
-- math
----------------------------------------------------------------------------------------------------------------------------
function toxz(x, y, z)
	return math.acos(z or 0), math.atan2(y or 0, x or 0)
end

function fromxz(rx, rz)
	return {math.cos(rz) * math.sin(rx), math.sin(rz) * math.sin(rx), math.cos(rx)}
end

function lerpAngle(a1, a2, t)
	if a2 - a1 > math.pi then
		a2 = a2 - 2 * math.pi
	elseif a1 - a2 > math.pi then
		a1 = a1 - 2 * math.pi
	end
	return a1 + (a2 - a1) * t
end

function getPositionFromElementOffset(element, offX, offY, offZ)
	local m = getElementMatrix(element) 
	local x = offX * m[1][1] + offY * m[2][1] + offZ * m[3][1] + m[4][1] 
	local y = offX * m[1][2] + offY * m[2][2] + offZ * m[3][2] + m[4][2]
	local z = offX * m[1][3] + offY * m[2][3] + offZ * m[3][3] + m[4][3]
	return x, y, z
end

function vectorLength(vecX, vecY, vecZ)
	return math.sqrt(vecX * vecX + vecY * vecY + vecZ * vecZ)
end

function normalizeVector(vecX, vecY, vecZ)
	local vecLen = math.sqrt(vecX * vecX + vecY * vecY + vecZ * vecZ)
	local vecNX = vecX / vecLen
	local vecNY = vecY / vecLen
	local vecNZ = vecZ / vecLen
	return vecNX, vecNY, vecNZ
end

local function updateFPS(msSinceLastFrame)
    localFPS = (1 / msSinceLastFrame) * 1000
end
addEventHandler("onClientPreRender", root, updateFPS)

Server side:

--
--s_gravityWheels.lua
-- 

local isGWEnable = {}
local lastVehicle = {}
local enableOnStart = {}

function gravityWheelsPlayerJoin(isSwEnabled)
	isGWEnable[client] = isSwEnabled
	enableOnStart[client] = isSwEnabled
	local clientVeh = getPedOccupiedVehicle(client)
	if clientVeh and isSwEnabled then
		lastVehicle[client] = clientVeh
	end
	for _,thisPlayer in ipairs(getElementsByType("player")) do
		local thisVeh = getPedOccupiedVehicle(thisPlayer)
		if thisVeh then
			triggerClientEvent(client, "gravityWheelsPlayerSwitch", resourceRoot, isGWEnable[thisPlayer], thisPlayer, thisVeh)
		end
	end
end

function gravityWheelsPlayerQuit()
	if getElementType(source) == "player" then
		isGWEnable[source] = false
		local lastVeh = getPedOccupiedVehicle(source)
		lastVehicle[source] = lastVeh
		triggerClientEvent("gravityWheelsPlayerQuit", resourceRoot, source, lastVehicle[source])
	end
end

function onSwitchGravityWheels(isON, thisVeh)
	isGWEnable[client] = isON
	lastVehicle[client] = thisVeh
	triggerClientEvent("gravityWheelsPlayerSwitch", resourceRoot, isGWEnable[client], client, thisVeh)
end

addEvent("onPlayerStartGravityWheels",true)
addEventHandler("onPlayerStartGravityWheels", resourceRoot, gravityWheelsPlayerJoin)

addEvent("onSwitchGravityWheels",true)
addEventHandler("onSwitchGravityWheels", resourceRoot, onSwitchGravityWheels)
addEventHandler("onPlayerQuit", root, gravityWheelsPlayerQuit)

function resetGravityOnVehicleExit(thePlayer)
	if isGWEnable[thePlayer] then
		isGWEnable[thePlayer] = false
		triggerClientEvent("gravityWheelsPlayerReset", resourceRoot, thePlayer, source)
	end
end

function resetGravityOnVehicleEnter(thePlayer)
	if isGWEnable[thePlayer] and not enableOnStart[thePlayer] then
		isGWEnable[thePlayer] = false
		triggerClientEvent("gravityWheelsPlayerReset", resourceRoot, thePlayer, source)
	else
		if enableOnStart[thePlayer] then
			isGWEnable[thePlayer] = true
			lastVehicle[thePlayer] = source
			triggerClientEvent("gravityWheelsPlayerSwitch", resourceRoot, isGWEnable[thePlayer], thePlayer, source)
		end
	end
end

addEventHandler("onVehicleExit", root, resetGravityOnVehicleExit)
addEventHandler("onVehicleEnter", root, resetGravityOnVehicleEnter)

function resetGravityOnPlayerDeath()
	if isGWEnable[source] then
		triggerClientEvent("gravityWheelsPlayerReset", resourceRoot, source, lastVehicle[source])
		isGWEnable[source] = false
		lastVehicle[source] = false
	end
end

addEventHandler("onPlayerWasted", root, resetGravityOnPlayerDeath)

function setOnOnMapStarting()
	for _,thisPlayer in ipairs(getElementsByType("player")) do
		if enableOnStart[thisPlayer] then
			local thisVeh = getPedOccupiedVehicle(thisPlayer)
			if thisVeh then
				isGWEnable[thisPlayer] = true
				lastVehicle[thisPlayer] = thisVeh
				triggerClientEvent("gravityWheelsPlayerSwitch", resourceRoot, isGWEnable[thisPlayer], thisPlayer, thisVeh)			
			end
		end	
	end
end

addEvent("onMapStarting", true)
addEventHandler("onMapStarting", root, setOnOnMapStarting)

addEventHandler("onResourceStop", resourceRoot, function()
	isGWEnable = {}
	lastVehicle = {}
	enableOnStart = {}
end
)

Tokio · October 31, 2017

Anyone can help?

Storm-Hanma · October 31, 2017

try to add this in server side

 ( getTeamName(getPlayerTeam(thePlayer)) == "Staff" )

i don't think it will add for admins,because it code as trigger client event !!

Edited October 31, 2017 by Khadeer143

Saml1er · October 31, 2017

WARNING

The code below works, but it does not secure your server from hackers. If a hacker manages to modify "isAdmin" variable on client side then he'll be able to fake his admin level access on client side scripts, not on server. If you are just using this to change rendering of HUD or something else that is not important then it's fine, but if you are enabling mods or other admin-level features on server by using isLocalPlayerAdmin function on client side then please check on server side every time before you give access to such features on server instead of client side.

Okay, so, add these two files to your script and specify them in meta.xml. In client-side script, I have added a command "amiadmin" which will tell you whether you are an admin or not. You can remove it, if you want.

Server side:

-- remove these lines starting with local, if you want to use these
-- functions in other server-side files
local identifyPlayerAsAdminOnClient
local isPlayerAdmin
local isPlayerLoggedIn
local isPlayerInACLGroup


addEvent ( "onCheckPlayerInAdminACL", true )
addEventHandler ("onCheckPlayerInAdminACL", root,
function ( )
    if isPlayerLoggedIn ( client ) and isPlayerAdmin ( client ) then
        identifyPlayerAsAdminOnClient ( client )
    end
end
)

addEventHandler ( 'onPlayerLogin', root,
function ()
    if isPlayerAdmin ( source ) then
        identifyPlayerAsAdminOnClient ( source )
    end
end
)

function identifyPlayerAsAdminOnClient ( player )
    triggerClientEvent ( player, "onIdentifyPlayerAsAdmin", resourceRoot )
end

function isPlayerAdmin ( player )
    local admingroup = "Admin"
    if not isPlayerInACLGroup ( player, tostring ( admingroup ) ) then
        return false
    end
    return true
end

function isPlayerLoggedIn ( player )
    return not isGuestAccount ( getPlayerAccount ( player ) )
end

function isPlayerInACLGroup ( player, groupName )
    local account = getPlayerAccount(player)
    if not account then
        return false
    end
    local accountName = getAccountName(account)
    for _,name in ipairs(split(groupName,',')) do
        local group = aclGetGroup(name)
        if group then
            for i,obj in ipairs(aclGroupListObjects(group)) do
                if obj == 'user.' .. accountName or obj == 'user.*' then
                    return true
                end
            end
        end
    end
    return false
end

Client side:

local isAdmin = false

addEvent ( "onIdentifyPlayerAsAdmin", true )
addEventHandler ( "onIdentifyPlayerAsAdmin", root,
function ( )
    isAdmin = true
end
)

function isLocalPlayerAdmin ( )
    return isAdmin
end

function CheckPlayerInAdminACL ( )
    triggerServerEvent ( "onCheckPlayerInAdminACL", resourceRoot )
end
addEventHandler("onClientResourceStart", resourceRoot, CheckPlayerInAdminACL )

addCommandHandler ("amiadmin",
function ( )
    -- You can check whether the player is admin or not, like this:
    if isLocalPlayerAdmin ( ) then
        outputChatBox ("Command Response: Yes, you are an admin.", 124, 252, 0, true )
    else
        outputChatBox ("Command Response: No, you are not an admin.", 255, 0, 0, true)
    end
end )

The usage is very simple. You can use isLocalPlayerAdmin function like this:

if isLocalPlayerAdmin ( ) then
    outputChatBox ("Command Response: Yes, you are an admin.", 124, 252, 0, true )
else
    outputChatBox ("Command Response: No, you are not an admin.", 255, 0, 0, true)
end

Edited October 31, 2017 by Saml1er
added warning

dex. · October 31, 2017

local accName = getAccountName(getPlayerAccount(player))
	if isObjectInACLGroup('user.'..accName,aclGetGroup('Admin')) then

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[HELP] How to make this script only available to admins?

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