To make this adventure game, I started with my typewriter movie (underwood) and then
tore all the guts out. This movie uses a single text field for the room descriptions,
and another text field for getting input from the user.
If you can't type, click next to the prompt on the bottom.
This movie illustrates the use of a state machine. The 'room' you are in corresponds
to a number, which is your current state. The different commands, such as 'go south',
'go north' and 'pick up object' cause your current state to be changed.
