Light History

Solutions for those exercises are behind the light_history feature.

History Graph

We want to draw a graph of the light status over time. The remote server exposes the get_history function to get the history of a device. Bevy doesn't have (yet) a good way to draw graphs, but it's possible to work around that by using gizmos.

Tips:

• Add events to request the history, and get the response from the server
• Add an observer system that opens a channel, and starts a task to get the history
• Add a system that will poll that channel until it receives the history, then trigger an event with it
• Draw the history with gizmos lines