Basic system and window creation.

actor.go

@@ -0,0 +1,28 @@
+package goga
+
+import ()
+
+// An actor ID is a unique integer,
+// which can be used to reference an actor.
+type ActorId uint64
+
+// A basic actor, having a unique ID.
+// Use NewActor() to create new actors.
+type Actor struct {
+	id ActorId
+}
+
+var (
+	actorIdGen = ActorId(0)
+)
+
+// Creates a new basic actor with unique ID.
+func NewActor() *Actor {
+	actorIdGen++
+	return &Actor{actorIdGen}
+}
+
+// Returns the ID of actor.
+func (a *Actor) GetId() ActorId {
+	return a.id
+}