Add second failure mode.

src/main.lua

@@ -137,6 +137,12 @@ end
 function movePaddle(ticks)
    if ticks == 0 then return end
    paddle:moveWithCollisions(paddle.x, paddle.y + ticks*-5)
+   for i = 1, #collisions, 1 do
+      local obj = collisions[i].other
+      if obj:isa(Brick) then
+         endGame()
+      end
+   end
 end
 
 function moveBall()