BIG WIP of refactoring my work in TS

back/src/Model/World.ts

@@ -0,0 +1,46 @@
+import {MessageUserPosition} from "./Websocket/MessageUserPosition";
+import {PointInterface} from "./Websocket/PointInterface";
+import {Group} from "./Group";
+
+export class World {
+    // Users, sorted by ID
+    private users: Map<string, PointInterface>;
+    private groups: Group[]
+    private connectCallback: (user1: string, user2: string) => void;
+    private disconnectCallback: (user1: string, user2: string) => void;
+
+    constructor(connectCallback: (user1: string, user2: string) => void, disconnectCallback: (user1: string, user2: string) => void) 
+    {
+        this.users = new Map<string, PointInterface>();
+        this.groups = [];
+        this.connectCallback = connectCallback;
+        this.disconnectCallback = disconnectCallback;
+    }    
+
+    public join(userPosition: MessageUserPosition): void {
+        this.users.set(userPosition.userId, userPosition.position);
+    }
+
+    public updatePosition(userPosition: MessageUserPosition): void {
+        if(typeof userPosition.userId === 'undefined') {
+            throw new Error('unkown id');
+        }
+        //this.users.get(userPosition.userId).x;
+
+        // TODO: compute distance between peers.
+
+        // Is the user in a group?
+
+        // Is the user leaving the group? (is the user at more than max distance of each player)
+
+        // Should we split the group? (is each player reachable from the current player?)
+                // This is needed if
+                //         A <==> B <==> C <===> D
+                // becomes A <==> B <=====> C <> D
+                // If C moves right, the distance between B and C is too great and we must form 2 groups
+
+        // If the user is in no group
+        //    is there someone in a group close enough and with room in the group?
+    }
+
+}