Consider the Mario example given in Section $9\mathrm{.}2.$ That example ex$-$

plicitly did not consider interactions between the character and the

environment within the game. $$ dd states, actions, and events to the

example as appropriate to account for the following situations:

The character falls into a bottomless pit and the game ends.

The character is struck by a monster and the game ends.

The character jumps on a monster and kills it$.$