Adding PlayersPositionInterpolator to interpolate/extrapolate players positions

front/src/Phaser/Game/PlayersPositionInterpolator.ts

@@ -2,6 +2,30 @@
  * This class is in charge of computing the position of all players.
  * Player movement is delayed by 200ms so position depends on ticks.
  */
-export class PlayersPositionInterpolator {
+import {PlayerMovement} from "./PlayerMovement";
+import {HasMovedEvent} from "./GameManager";
 
+export class PlayersPositionInterpolator {
+    playerMovements: Map<string, PlayerMovement> = new Map<string, PlayerMovement>();
+
+    updatePlayerPosition(userId: string, playerMovement: PlayerMovement) : void {
+        this.playerMovements.set(userId, playerMovement);
+    }
+
+    removePlayer(userId: string): void {
+        this.playerMovements.delete(userId);
+    }
+
+    getUpdatedPositions(tick: number) : Map<string, HasMovedEvent> {
+        let positions = new Map<string, HasMovedEvent>();
+        this.playerMovements.forEach((playerMovement: PlayerMovement, userId: string) => {
+            if (playerMovement.isOutdated(tick)) {
+                //console.log("outdated")
+                this.playerMovements.delete(userId);
+            }
+            //console.log("moving")
+            positions.set(userId, playerMovement.getPosition(tick))
+        });
+        return positions;
+    }
 }