Refactored and optimized messages

Now, when a user moves, only his/her position is sent back to the other users. The position of all users is not sent each time.

The messages sent to the browser are now:

- the list of all users as a return to the join_room event (you can send responses to events in socket.io)
- a "join_room" event sent when a new user joins the room
- a "user_moved" event when a user moved
- a "user_left" event when a user left the room

The GameScene tracks all these events and reacts accordingly.

Also, I made a number of refactoring in the classes and removed the GameSceneInterface that was useless (it was implemented by the LogincScene for no reason at all)

front/src/Phaser/UserInput/UserInputManager.ts

@@ -1,5 +1,5 @@
 import Map = Phaser.Structs.Map;
-import {GameSceneInterface} from "../Game/GameScene";
+import {GameScene} from "../Game/GameScene";
 
 interface UserInputManagerDatum {
     keyCode: number;
@@ -29,7 +29,7 @@ export class ActiveEventList {
     set(event: UserInputEvent, value: boolean): boolean {
         return this.KeysCode[event] = true;
     }
-} 
+}
 
 //this class is responsible for catching user inputs and listing all active user actions at every game tick events.
 export class UserInputManager {
@@ -38,19 +38,19 @@ export class UserInputManager {
         {keyCode: Phaser.Input.Keyboard.KeyCodes.Q, event: UserInputEvent.MoveLeft, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.S, event: UserInputEvent.MoveDown, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.D, event: UserInputEvent.MoveRight, keyInstance: null},
-        
+
         {keyCode: Phaser.Input.Keyboard.KeyCodes.UP, event: UserInputEvent.MoveUp, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.LEFT, event: UserInputEvent.MoveLeft, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.DOWN, event: UserInputEvent.MoveDown, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.RIGHT, event: UserInputEvent.MoveRight, keyInstance: null},
-        
+
         {keyCode: Phaser.Input.Keyboard.KeyCodes.SHIFT, event: UserInputEvent.SpeedUp, keyInstance: null},
-        
+
         {keyCode: Phaser.Input.Keyboard.KeyCodes.E, event: UserInputEvent.Interact, keyInstance: null},
         {keyCode: Phaser.Input.Keyboard.KeyCodes.F, event: UserInputEvent.Shout, keyInstance: null},
     ];
-    
-    constructor(Scene : GameSceneInterface) {
+
+    constructor(Scene : GameScene) {
         this.KeysCode.forEach(d => {
             d.keyInstance = Scene.input.keyboard.addKey(d.keyCode);
         });
@@ -65,4 +65,4 @@ export class UserInputManager {
         });
         return eventsMap;
     }
-}
+}