sH, sW = guiGetScreenSize()
x_prev = nil

function setPrevX()
    x, _ = getCursorPosition ()
    x_prev = x*sW
end


function girarpj()
    if getKeyState ("mouse2") then
        x, _ = getCursorPosition ()
        x=x*sW
        change_rot = (x-x_prev)
        local _, _, ped_rot = getElementRotation ( Jugador )
        local rot_to = ped_rot+change_rot
        if rot_to < 0 then
            rot_to = ped_rot+change_rot+360
        end
        setElementRotation ( Jugador, 0, 0, rot_to )
        x_prev = x
    end
end