for i,drawing in ipairs(lines) do
      if type(drawing) == 'table' then
        local x, y = love.mouse.getX(), love.mouse.getY()
        if y >= drawing.y and y < drawing.y + drawing.h and x >= 12 and x < 12+drawing.w then
          for j,shape in ipairs(drawing.shapes) do
            if on_freehand(love.mouse.getX(),love.mouse.getY(), shape) then
              convert_line(drawing,j,shape)
            end

    local drawing,i,shape = select_shape_at_mouse()
    if drawing then
      convert_line(drawing,i,shape)
    end
  end
end
function select_shape_at_mouse()
  for _,drawing in ipairs(lines) do
    if type(drawing) == 'table' then
      local x, y = love.mouse.getX(), love.mouse.getY()
      if y >= drawing.y and y < drawing.y + drawing.h and x >= 12 and x < 12+drawing.w then
        for i,shape in ipairs(drawing.shapes) do
          if on_freehand(love.mouse.getX(),love.mouse.getY(), shape) then
            return drawing,i,shape