Ah thank you so much, it seems so obvious now it isn't 1 in the morning!

I'm a novice at Lua, so forgive me if the answe to this is very obvious! I'm using the delightful lua-state-machine (https://github.com/kyleconroy/lua-state-machine) and the hump.class (https://github.com/vrld/hump) libraries, although I tried the same code with a different class library and it did ...