OVERVIEW:
Guard nodes are items used to control and spawn guards in all the cities.

FEATURES:
Guard nodes listen to speech events in a radius of 30 tiles.
Guard nodes search for criminals in a radius of 30 tiles.
Guard nodes receive events from merchant nodes.
Guard nodes send events to nearby guards to attack criminals
Guard nodes spawn their own guards as needed, and will replace any guards that may be killed in the line of duty.

Guards do not listen directly for guard calls, so they consume less CPU cycles.
Guards do listen for certain keywords at a very close range. so a player must be close to them to get a response.
It is very difficult to kill a town guard as they will heal and cure themselves if they reach half health or are poisoned.