ScalaLoci: Variants of Example Applications
This repository contains a comparison of different variants of the same software.
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Pong implements the arcade Pong game. Additionally to the distributed multiplayer versions, a local baseline is provided (where the user plays against the computer). The distributed versions adopt a client–server model. Both the server and the clients run on the JVM.
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Shapes is a collaborative drawing web application, where clients connect to a central server. The server runs on the JVM while clients run in the web browser.
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P2P Chat is a P2P web chat application, which supports multiple one-to-one chat sessions. Peers communicate directly in a P2P fashion after discovering via a registry. The registry runs on the JVM while peers run in the web browser.
The communication mechanism is in the left column and the event processing strategy is in top row.
| reactive ¹ | observer ¹ | observer (JS) ² | |
|---|---|---|---|
| (local) | Pong | Pong | |
| RMI | Pong | Pong | |
| WebSocket | Shapes | Shapes | Shapes |
| WebRTC | P2P Chat | P2P Chat | P2P Chat |
| Akka | Pong | Pong | |
| Shapes | Shapes | ||
| P2P Chat | P2P Chat | ||
| ScalaLoci | Pong | Pong | |
| Shapes | Shapes | ||
| P2P Chat | P2P Chat |
¹ All code is in Scala or ScalaLoci. The client is compiled to JavaScript via Scala.js.
² Uses handwritten JavaScript for the client-side, Scala for the server side.