async call for recalculating tiles costs (#1890)

* async call for recalculating tiles costs

* fixed setWalkingCostGrid still being a blocking process

* set exits tiles cost from the start

* removed typing error from code

Co-authored-by: Hanusiak Piotr <piotr@ltmp.co>

front/src/Phaser/Game/GameScene.ts

@@ -571,7 +571,6 @@ export class GameScene extends DirtyScene {
         this.pathfindingManager = new PathfindingManager(
             this,
             this.gameMap.getCollisionGrid(),
-            this.gameMap.getWalkingCostGrid(),
             this.gameMap.getTileDimensions()
         );
 
@@ -1450,7 +1449,7 @@ ${escapedMessage}
                 phaserLayers[i].setCollisionByProperty({ collides: true }, visible);
             }
         }
-        this.pathfindingManager.setCollisionGrid(this.gameMap.getCollisionGrid(), this.gameMap.getWalkingCostGrid());
+        this.pathfindingManager.setCollisionGrid(this.gameMap.getCollisionGrid());
         this.markDirty();
     }