local screenX, screenY = guiGetScreenSize()
local myFont = dxCreateFont ( "font.ttf",20 )
local smothedRotation = 0


lightState = 0
localPlayer = getLocalPlayer ()

addEventHandler("onClientVehicleEnter", getRootElement(),
    function(thePlayer, seat)
        if thePlayer == getLocalPlayer() then
         if seat == 0 then
            bindKey ( "i", "down", showLightState_panel )
            --addEventHandler("onClientRender",root, showPanel_main )
            lightState = getVehicleOverrideLights ( source ) or 0
         end
      end
    end
)

addEventHandler("onClientVehicleExit", getRootElement(),
    function(thePlayer, seat)
        if thePlayer == getLocalPlayer() then
         if seat == 0 then
         --   removeEventHandler("onClientRender",root, showPanel_main )
            unbindKey ( "i", "down" )
             
end
        end
    end
)



function drawNeedle( vehicle, seat)
   if not getPedOccupiedVehicle ( localPlayer ) then
      unbindKey ( "3", "down" )
      lightState = 0
      return true
   end
      if isPedInVehicle(getLocalPlayer())then
         local veh = getElementSpeed(getPedOccupiedVehicle(getLocalPlayer()), "kmh")
         local engine = (getPedOccupiedVehicle(getLocalPlayer()))
         if not veh then return end
         local vehicleSpeed = getVehicleSpeed()
         local rot = math.floor(((220/12800)* getVehicleRPM(getPedOccupiedVehicle(getLocalPlayer()))) + 0.5)
         local fuel = getElementData(getPedOccupiedVehicle ( localPlayer ), "fuel" ) or 0
      if (smothedRotation < rot) then
         smothedRotation = smothedRotation + 1.5
      end
      if (smothedRotation > rot) then
         smothedRotation = smothedRotation - 1.5
      end
         
      if vehicleSpeed > 252 then
         vehicleSpeed = 252
      end
      if vehicleSpeed < -252 then
         vehicleSpeed = -252
      end
         dxDrawImage(screenX-320, screenY-220,314,220,"img/panel.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         dxDrawImage(screenX-216, screenY-209,200,200,"img/arrowSpeedometer.png",vehicleSpeed-0,0.0,0.0,tocolor(255,255,255,255),false)
         dxDrawImage(screenX-313, screenY-188,158,158,"img/arrowTachometer.png",smothedRotation,0.0,0.0,tocolor(255,255,255,255),false)
         dxDrawText(""..tostring ( getFormatSpeed ( veh ) ).."", screenX-142, screenY-128, 170, 300,tocolor ( 255,255,255 ),1,myFont)
         dxDrawText(""..tostring ( getFormatFuel(math.round  (fuel))).."", screenX-131, screenY-100, 170, 300,tocolor ( 255,255,255 ),0.6,myFont)
         dxDrawImage(screenX-180, screenY-53,23,26,"img/strafeLeftOff.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         dxDrawImage(screenX-73, screenY-53,23,26,"img/strafeRightOff.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         
      if ( vehicleSpeed == 0 ) then
         dxDrawText(getFormatNeutral().."", screenX-246, screenY-128, 170, 300,tocolor ( 255,255,255 ),1,myFont)
      else
         dxDrawText(getFormatGear().."", screenX-246, screenY-128, 170, 300,tocolor ( 255,255,255 ),1,myFont)
      end
   
      if ( getVehicleEngineState (engine) == true ) then
         dxDrawImage(screenX-125, screenY-33,23,26,"img/engineOn.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
      else
         dxDrawImage(screenX-125, screenY-33,23,26,"img/engineOff.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
      end
   
      if lightState == 0 or lightState == 1 then
         dxDrawImage(screenX-154, screenY-40,23,26,"img/lightOff.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
      else
         dxDrawImage(screenX-154, screenY-40,23,26,"img/lightOn.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
      end
         
      if getElementData(getPedOccupiedVehicle ( localPlayer ), "l" ) then
         if ( getTickCount () % 1400 >= 400 ) then
            dxDrawImage(screenX-180, screenY-53,23,26,"img/strafeLeftOn.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         end
      end
         
      if getElementData(getPedOccupiedVehicle ( localPlayer ), "p" ) then
         if ( getTickCount () % 1400 >= 400 ) then
            dxDrawImage(screenX-73, screenY-53,23,26,"img/strafeRightOn.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         end
      end
         
      local theVehicle = getPedOccupiedVehicle ( localPlayer )
      if ( theVehicle ) then
         if ( enablelock ) and ( isVehicleLocked( theVehicle ) ) or ( getElementData( theVehicle, "cl_vehiclelocked" ) ) then
            dxDrawImage(screenX-95, screenY-35,13,15,"img/lock.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
         else
            dxDrawImage(screenX-95, screenY-35,13,15,"img/open.png",0.0,0.0,0.0,tocolor(255,255,255,255),false)
            end
      end
   end
end
addEventHandler("onClientRender", getRootElement(), drawNeedle)

function showLightState_panel ()
   if lightState == 0 or lightState == 1 then
      lightState = 2
      setVehicleOverrideLights( getPedOccupiedVehicle ( localPlayer ), 2 )
   else
      setVehicleOverrideLights( getPedOccupiedVehicle ( localPlayer ), 1 )
      lightState = 0
   end
end

--- Стрелка спидометра
function getVehicleSpeed()
    if isPedInVehicle(getLocalPlayer()) then
       local theVehicle = getPedOccupiedVehicle (getLocalPlayer())
        local vx, vy, vz = getElementVelocity (theVehicle)
        return math.sqrt(vx^2 + vy^2 + vz^2) * 225
    end
    return 0
end

function getElementSpeed(element,unit)
    if (unit == nil) then unit = 0 end
    if (isElement(element)) then
        local x,y,z = getElementVelocity(element)
        if (unit=="mph" or unit==1 or unit =='1') then
            return math.floor((x^2 + y^2 + z^2) ^ 0.5 * 100)
        else
            return math.floor((x^2 + y^2 + z^2) ^ 0.5 * 100 * 1.609344)
        end
    else
        return false
    end
end

function math.round(number, decimals, method)
    decimals = decimals or 0
    local factor = 10 ^ decimals
    if (method == "ceil" or method == "floor") then return math[method](number * factor) / factor
    else return tonumber(("%."..decimals.."f"):format(number)) end
end

function math.round(number, decimals, method)
    decimals = decimals or 0
    local factor = 10 ^ decimals
    if (method == "ceil" or method == "floor") then return math[method](number * factor) / factor
    else return tonumber(("%."..decimals.."f"):format(number)) end
end

-- Скорость
function getFormatSpeed(unit)
    if unit < 10 then
        unit = "00" .. unit
    elseif unit < 100 then
        unit = "0" .. unit
    elseif unit >= 1000 then
        unit = "999"
    end
    return unit
end
-- бензин
function getFormatFuel(unit)
    if unit < 10 then
        unit = "00" .. unit
    elseif unit < 100 then
        unit = "0" .. unit
    elseif unit >= 1000 then
        unit = "999"
    end
    return unit
end
-- передачи и задняя
function getFormatGear()
    local gear = getVehicleCurrentGear(getPedOccupiedVehicle(getLocalPlayer()))
    local rear = "R"
   local neutral = "N"
    if (gear > 0) then
        return gear
    else
        return rear
    end
end
-- нетральная передача
function getFormatNeutral()
   local neutral = "N"
   return neutral
end
-- тахометр
function getVehicleRPM(vehicle)
local vehicleRPM = 0
    if (vehicle) then 
        if (getVehicleEngineState(vehicle) == true) then
            if getVehicleCurrentGear(vehicle) > 0 then             
                vehicleRPM = math.floor(((getElementSpeed(vehicle, "kmh")/getVehicleCurrentGear(vehicle))*180) + 0.5)
                if (vehicleRPM < 650) then
                    vehicleRPM = math.random(650, 750)
                elseif (vehicleRPM >= 9800) then
                    vehicleRPM = math.random(9800, 9900)
                end
            else
                vehicleRPM = math.floor((getElementSpeed(vehicle, "kmh")*180) + 0.5)
                if (vehicleRPM < 650) then
                    vehicleRPM = math.random(650, 750)
                elseif (vehicleRPM >= 9800) then
                    vehicleRPM = math.random(9800, 9900)
                end
            end
        else
            vehicleRPM = 0
        end
        return tonumber(vehicleRPM)
    else
        return 0
    end
end