Help Pleas

[Lachuks]

I am scripting beginer and dont know why its dont work.

local screenX, screenY = guiGetScreenSize () 
function leaderText(marker) 
    local xm,ym,zm = getElementPosition(marker) 
    local x,y = getScreenFromWorldPosition(xm,ym,zm+0.2) 
    local camX,camY,camZ = getCameraMatrix() 
        if (x and y and getDistanceBetweenPoints3D(camX, camY, camZ, xm,ym,zm) <= 20) then 
           dxDrawText ("Hello", x,y,x,y, tocolor (255,0, 0, 255) , ( screenX / 1440 ) * 2 , "default-bold" , "center" , "center" , false , true , false ) 
    end 
end 
addCommandHandler ("Hello", leaderText) 

[Walid]

Simply because marker it's not defined in your code.

this how you can fix it .

  
local screenX, screenY = guiGetScreenSize () 
local marker = createMarker ( x, y, z, "cylinder", 1.5, 255, 255, 0, 170 ) 
  
function leaderText() 
    local xm,ym,zm = getElementPosition(marker) 
    local x,y = getScreenFromWorldPosition(xm,ym,zm+0.2) 
    local camX,camY,camZ = getCameraMatrix() 
        if (x and y and getDistanceBetweenPoints3D(camX, camY, camZ, xm,ym,zm) <= 20) then 
           dxDrawText ("Hello", x,y,x,y, tocolor (255,0, 0, 255) , ( screenX / 1440 ) * 2 , "default-bold" , "center" , "center" , false , true , false ) 
    end 
end 
addEventHandler ("onClientPreRender", root,leaderText) 

[Lachuks]

I put it in and dont work

[darhal]

At the line two u should put numbers not undefined x, y, z variables

[Walid]

I put it in and dont work

lol you need to add the marker coordination x , y , z

local marker = createMarker ( x, y, z, "cylinder", 1.5, 255, 255, 0, 170 ) 

[Lachuks]

I want for marker be up player head and text under it... I make like duty script where you say aduty and you ahve godmode...

its like say aduty and on head marker and text Admin OnDuty... (sorry for bad english)