use events to isolate the "classes"

[hugomaiavieira]

Transform nodes, waypoints and etc into Classes and use events to isolate then and send messages. For example: When call nodes.push(), it dispatch an event that waypoint object will listen and call push on itself too.

• https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Creating_and_triggering_events
• https://developer.mozilla.org/pt-BR/docs/Web/API/Element.addEventListener