cars = {
--{id,név,ár},
{400,"BMW X5",10000000},
{401,"BMW X6",11000000},
{402,"BMW X7",12000000},
}

shopX,shopY,shopZ = 370.09644, -471.09140, 24.53954-1
carX,carY,carZ = 396.42136, -401.18680, 26.02704
minZ = -1
maxZ = 2


camRotX = 0
camRotZ = 0
startMarker = createMarker(shopX,shopY,shopZ,"cylinder",2,40,40,255)

function MarkerHit ( hitPlayer, matchingDimension )
    if hitPlayer == localPlayer then
        playerInShop = true
        setElementFrozen(localPlayer,true)
        selectedVeh = 1
        if shopVeh then
            destroyElement(shopVeh)
        end
        shopVeh = createVehicle(cars[selectedVeh][1],carX,carY,carZ)
        startCameraAround(shopVeh,10)
    end
end
addEventHandler ( "onClientMarkerHit", getRootElement(), MarkerHit )

bindKey("backspace","down",function()
    if playerInShop then
        playerInShop = false
        setElementFrozen(localPlayer,false)
        stopCameraAround()
    end
end)

bindKey("arrow_l","down",function()
    selectedVeh = selectedVeh-1
    if selectedVeh<1 then
        selectedVeh = #cars
    end
    refreshModel()
end)
bindKey("arrow_r","down",function()
    selectedVeh = selectedVeh+1
    if selectedVeh>#cars then
        selectedVeh = 1
    end
    refreshModel()
end)

bindKey("enter","down",function()
    if playerInShop then
        --triggerserverevent!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    end
end)

panelSize={200,75}

function render()
    if playerInShop then
        if getKeyState("a") then
            camRotX = camRotX+0.5
        end
        if getKeyState("d") then
            camRotX = camRotX-0.5
        end
        if getKeyState("w") then
            camRotZ = camRotZ+0.02
            if camRotZ > maxZ then
                camRotZ = maxZ
            end
        end
        if getKeyState("s") then
            camRotZ = camRotZ-0.02
            if camRotZ < minZ then
                camRotZ = minZ
            end
        end
        camx,camy = getCirclePosition(camRotX,camDist)--vagy + ha fordítva forog a kamera
        px,py,pz = getElementPosition(camAround)
        setCameraMatrix(camx+px,camy+py,pz+camRotZ,px,py,pz)
        cx,cy,cz = getElementPosition(shopVeh)
        local coords = { getScreenFromWorldPosition ( cx+2,cy,cz ) }
        if coords[1] and coords[2] then
            dxDrawRectangle(coords[1]-panelSize[1]/2,coords[2]-panelSize[2]/2,panelSize[1],panelSize[2],tocolor(0,0,0,180))
            dxDrawText(cars[selectedVeh][2].."\n"..convertNumber(cars[selectedVeh][3]).." forint ",coords[1],coords[2],coords[1],coords[2],tocolor(255,255,255,255),1.5,"sans","center","center")
        end
        local coords = { getScreenFromWorldPosition ( cx+2,cy,cz+1 ) }
        if coords[1] and coords[2] then
            dxDrawRectangle(coords[1]-panelSize[1]/2,coords[2]-panelSize[2]/2,panelSize[1],panelSize[2],tocolor(0,0,0,180))
            dxDrawText("Forgatás: W,A,S,D\nVáltás: Nyilak\nMegvétel: Enter\nKilépés: Backspace",coords[1],coords[2],coords[1],coords[2],tocolor(255,255,255,255),1,"sans","center","center")
        end
    end
end
addEventHandler("onClientRender",root,render)


function startCameraAround(element,distance)
    camAround = element
    camDist = distance
end

function stopCameraAround()
    camAround = false
    setCameraTarget(localPlayer)
end

function getCirclePosition(number,scale)
    x = (math.cos(math.rad(number)))*scale
    y = (math.sin(math.rad(number)))*scale
    return x,y
end

function convertNumber ( number )
    local formatted = number
    while true do
        formatted, k = string.gsub(formatted, "^(-?%d+)(%d%d%d)", '%1,%2')
        if ( k==0 ) then
            break
        end
    end
    return formatted
end

function refreshModel()
    setElementModel(shopVeh,cars[selectedVeh][1])
    cx,cy,cz = getElementPosition(shopVeh)
    setElementPosition(shopVeh,cx,cy,cz+0.5)
end