Love2d rotation G1

y = 100
function love.load()
   g1 = love.graphics.newImage("1.png")
   width = g1:getWidth()
   height = g1:getHeight()
end
function love.draw()
   love.graphics.draw(g1, 100, 100, math.rad(y), 1, 1, width / 2, height / 2)
   while true do
   y = y + 0.1
   end
end

function love.update()
        if love.mouse.isDown("l") then
        y = y + 0.1
        end
end