feat: westworldwithmessaging. add entitymanager, telegram, messagehandlers, delayedmessages, expand baseentity

chapter-2-state-driven-agent-design/westworldwithmessaging/elsa.go

@@ -1,4 +1,4 @@
-package westworldwithwoman
+package westworldwithmessaging
 
 // Elsa is the miner's wife, introduced in this section of the book.
 // She's built the exact same way Miner is: embed *BaseGameEntity for
@@ -28,6 +28,10 @@ func NewElsa(id int) *Elsa {
 	e.stateMachine.SetCurrentState(DoHousework())
 	e.stateMachine.SetGlobalState(WifesGlobalState())
 
+	// Register with the entity manager automatically, same reasoning
+	// as NewMiner - one less manual step for every caller to remember.
+	EntityMgr.RegisterEntity(e)
+
 	return e
 }
 
@@ -47,3 +51,9 @@ func (e *Elsa) Update() {
 func (e *Elsa) ChangeState(newState State[Elsa]) {
 	e.stateMachine.ChangeState(newState)
 }
+
+// HandleMessage forwards to the state machine, same as
+// Miner.HandleMessage.
+func (e *Elsa) HandleMessage(msg Telegram) bool {
+	return e.stateMachine.HandleMessage(msg)
+}