Making the group radius distinct from the minimum distance to connect 2 players

Also, changed default settings from 160px for Group Radius to 120px
(minimum distance to connect 2 players remains 160px)

back/src/Controller/IoSocketController.ts

@@ -4,7 +4,7 @@ import * as http from "http";
 import {MessageUserPosition} from "../Model/Websocket/MessageUserPosition"; //TODO fix import by "_Model/.."
 import {ExSocketInterface} from "../Model/Websocket/ExSocketInterface"; //TODO fix import by "_Model/.."
 import Jwt, {JsonWebTokenError} from "jsonwebtoken";
-import {SECRET_KEY} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
+import {SECRET_KEY, MINIMUM_DISTANCE, GROUP_RADIUS} from "../Enum/EnvironmentVariable"; //TODO fix import by "_Enum/..."
 import {ExtRooms, RefreshUserPositionFunction} from "../Model/Websocket/ExtRoom";
 import {ExtRoomsInterface} from "../Model/Websocket/ExtRoomsInterface";
 import {World} from "../Model/World";
@@ -48,7 +48,7 @@ export class IoSocketController{
             this.connectedUser(user1, user2);
         }, (user1 : string, user2 : string) => {
             this.disConnectedUser(user1, user2);
-        });
+        }, MINIMUM_DISTANCE, GROUP_RADIUS);
     }
 
     ioConnection() {

back/src/Enum/EnvironmentVariable.ts

@@ -1,7 +1,11 @@
 const SECRET_KEY = process.env.SECRET_KEY || "THECODINGMACHINE_SECRET_KEY";
 const ROOM = process.env.ROOM || "THECODINGMACHINE";
+const MINIMUM_DISTANCE = process.env.MINIMUM_DISTANCE ? Number(process.env.MINIMUM_DISTANCE) : 160;
+const GROUP_RADIUS = process.env.GROUP_RADIUS ? Number(process.env.GROUP_RADIUS) : 128;
 
 export {
     SECRET_KEY,
-    ROOM
+    ROOM,
+    MINIMUM_DISTANCE,
+    GROUP_RADIUS
 }

back/src/Model/Group.ts

@@ -66,23 +66,6 @@ export class Group {
         return this.users.indexOf(user) !== -1;
     }
 
-    isStillIn(user: UserInterface): boolean
-    {
-        if(!this.isPartOfGroup(user)) {
-            return false;
-        }
-        let stillIn = true;
-        for(let i = 0; i <= this.users.length; i++) {
-            let userInGroup = this.users[i];
-            let distance = World.computeDistance(user, userInGroup);
-            if(distance > World.MIN_DISTANCE) {
-                stillIn = false;
-                break;
-            }
-        }
-        return stillIn;
-    }
-
     /*removeFromGroup(users: UserInterface[]): void
     {
         for(let i = 0; i < users.length; i++){

back/src/Model/World.ts

@@ -7,7 +7,8 @@ import {ExSocketInterface} from "_Model/Websocket/ExSocketInterface";
 import {PositionInterface} from "_Model/PositionInterface";
 
 export class World {
-    static readonly MIN_DISTANCE = 160;
+    private minDistance: number;
+    private groupRadius: number;
 
     // Users, sorted by ID
     private users: Map<string, UserInterface>;
@@ -16,12 +17,16 @@ export class World {
     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)
+    constructor(connectCallback: (user1: string, user2: string) => void, disconnectCallback: (user1: string, user2: string) => void,
+                minDistance: number,
+                groupRadius: number)
     {
         this.users = new Map<string, UserInterface>();
         this.groups = [];
         this.connectCallback = connectCallback;
         this.disconnectCallback = disconnectCallback;
+        this.minDistance = minDistance;
+        this.groupRadius = groupRadius;
     }
 
     public join(userPosition: MessageUserPosition): void {
@@ -73,7 +78,7 @@ export class World {
             // If the user is part of a group:
             //  should he leave the group?
             let distance = World.computeDistanceBetweenPositions(user.position, user.group.getPosition());
-            if (distance > World.MIN_DISTANCE) {
+            if (distance > this.groupRadius) {
                 this.leaveGroup(user);
             }
         }
@@ -103,15 +108,16 @@ export class World {
 
     /**
      * Looks for the closest user that is:
-     * - close enough (distance <= MIN_DISTANCE)
+     * - close enough (distance <= minDistance)
-     * - not in a group OR in a group that is not full
+     * - not in a group
+     * OR
+     * - close enough to a group (distance <= groupRadius)
      */
     private searchClosestAvailableUserOrGroup(user: UserInterface): UserInterface|Group|null
     {
-        let usersToBeGroupedWith: Distance[] = [];
+        let minimumDistanceFound: number = Math.max(this.minDistance, this.groupRadius);
-        let minimumDistanceFound: number = World.MIN_DISTANCE;
         let matchingItem: UserInterface | Group | null = null;
-        this.users.forEach(function(currentUser, userId) {
+        this.users.forEach((currentUser, userId) => {
             // Let's only check users that are not part of a group
             if (typeof currentUser.group !== 'undefined') {
                 return;
@@ -122,7 +128,7 @@ export class World {
 
             let distance = World.computeDistance(user, currentUser); // compute distance between peers.
 
-            if(distance <= minimumDistanceFound) {
+            if(distance <= minimumDistanceFound && distance <= this.minDistance) {
                 minimumDistanceFound = distance;
                 matchingItem = currentUser;
             }
@@ -162,12 +168,12 @@ export class World {
             */
         });
 
-        this.groups.forEach(function(group: Group) {
+        this.groups.forEach((group: Group) => {
             if (group.isFull()) {
                 return;
             }
             let distance = World.computeDistanceBetweenPositions(user.position, group.getPosition());
-            if(distance <= minimumDistanceFound) {
+            if(distance <= minimumDistanceFound && distance <= this.groupRadius) {
                 minimumDistanceFound = distance;
                 matchingItem = group;
             }

back/tests/WorldTest.ts

@@ -15,7 +15,7 @@ describe("World", () => {
 
         }
 
-        let world = new World(connect, disconnect);
+        let world = new World(connect, disconnect, 160, 160);
 
         world.join(new MessageUserPosition({
             userId: "foo",
@@ -63,7 +63,7 @@ describe("World", () => {
 
         }
 
-        let world = new World(connect, disconnect);
+        let world = new World(connect, disconnect, 160, 160);
 
         world.join(new MessageUserPosition({
             userId: "foo",
@@ -108,7 +108,7 @@ describe("World", () => {
             disconnectCalled = true;
         }
 
-        let world = new World(connect, disconnect);
+        let world = new World(connect, disconnect, 160, 160);
 
         world.join(new MessageUserPosition({
             userId: "foo",