Event Trigger

Actually typing the response to your question made me think through a scenario that made me realize that there is a bug in the code. If you only send one event, but there are multiple handlers waiting to respond, only one will trigger. I am working on that and will issue a new version soon.

That's a great question.

1) It decouples your code so you fire off an event and aren't concerned who or if anyone handles it.

2) Based on the event sent, you could have different logic executed on different event sheets. So lets say you have a player being hit by bullets. The player event sheet sends an event player hit, It's responsibility is all things about the player. The title screen may act on that message by changing the color of player. On the game screen it may decrease the health of the player.

3) You also could have multiple items respond differently based on the event. Lets say you emit an event for player health low. You could have a health bar that listens for that event and changes color, the player could listen for that event and start flashing, etc.

So it's a different way of organizing and thinking about your code in a more event system driven way where one event could have a multitude of results.

Hope this helps