created PathfindingManager. WIP

front/package.json

@@ -48,6 +48,7 @@
     "axios": "^0.21.2",
     "cross-env": "^7.0.3",
     "deep-copy-ts": "^0.5.0",
+    "easystarjs": "^0.4.4",
     "generic-type-guard": "^3.2.0",
     "google-protobuf": "^3.13.0",
     "phaser": "^3.54.0",

front/src/Phaser/Game/GameMap.ts

@@ -1,10 +1,4 @@
-import type {
-    ITiledMap,
-    ITiledMapLayer,
-    ITiledMapObject,
-    ITiledMapObjectLayer,
-    ITiledMapProperty,
-} from "../Map/ITiledMap";
+import type { ITiledMap, ITiledMapLayer, ITiledMapObject, ITiledMapProperty } from "../Map/ITiledMap";
 import { flattenGroupLayersMap } from "../Map/LayersFlattener";
 import TilemapLayer = Phaser.Tilemaps.TilemapLayer;
 import { DEPTH_OVERLAY_INDEX } from "./DepthIndexes";
@@ -120,6 +114,22 @@ export class GameMap {
         return [];
     }
 
+    public getCollisionsGrid(): number[][] {
+        const collisionsLayer = this.findPhaserLayer("collisions");
+        if (!collisionsLayer) {
+            return [];
+        }
+        const grid: number[][] = [];
+        for (let y = 0; y < collisionsLayer.height; y += 1) {
+            const row: number[] = [];
+            for (let x = 0; x < collisionsLayer.width; x += 1) {
+                row.push(collisionsLayer.getTileAt(x, y) ? 1 : 0);
+            }
+            grid.push(row);
+        }
+        return grid;
+    }
+
     private getLayersByKey(key: number): Array<ITiledMapLayer> {
         return this.flatLayers.filter((flatLayer) => flatLayer.type === "tilelayer" && flatLayer.data[key] !== 0);
     }

front/src/Phaser/Game/GameScene.ts

@@ -48,9 +48,9 @@ import { PropertyUtils } from "../Map/PropertyUtils";
 import { GameMapPropertiesListener } from "./GameMapPropertiesListener";
 import { analyticsClient } from "../../Administration/AnalyticsClient";
 import { GameMapProperties } from "./GameMapProperties";
+import { PathfindingManager } from "../../Utils/PathfindingManager";
 import type {
     GroupCreatedUpdatedMessageInterface,
-    MessageUserJoined,
     MessageUserMovedInterface,
     MessageUserPositionInterface,
     OnConnectInterface,
@@ -66,7 +66,6 @@ import type { ITiledMap, ITiledMapLayer, ITiledMapProperty, ITiledMapObject, ITi
 import type { AddPlayerInterface } from "./AddPlayerInterface";
 import { CameraManager, CameraManagerEvent, CameraManagerEventCameraUpdateData } from "./CameraManager";
 import type { HasPlayerMovedEvent } from "../../Api/Events/HasPlayerMovedEvent";
-import type { Character } from "../Entity/Character";
 
 import { peerStore } from "../../Stores/PeerStore";
 import { biggestAvailableAreaStore } from "../../Stores/BiggestAvailableAreaStore";
@@ -89,8 +88,7 @@ import SpriteSheetFile = Phaser.Loader.FileTypes.SpriteSheetFile;
 import { deepCopy } from "deep-copy-ts";
 import FILE_LOAD_ERROR = Phaser.Loader.Events.FILE_LOAD_ERROR;
 import { MapStore } from "../../Stores/Utils/MapStore";
-import { followUsersColorStore, followUsersStore } from "../../Stores/FollowStore";
-import { getColorRgbFromHue } from "../../WebRtc/ColorGenerator";
+import { followUsersColorStore } from "../../Stores/FollowStore";
 import Camera = Phaser.Cameras.Scene2D.Camera;
 
 export interface GameSceneInitInterface {
@@ -203,6 +201,7 @@ export class GameScene extends DirtyScene {
     private mapTransitioning: boolean = false; //used to prevent transitions happening at the same time.
     private emoteManager!: EmoteManager;
     private cameraManager!: CameraManager;
+    private pathfindingManager!: PathfindingManager;
     private preloading: boolean = true;
     private startPositionCalculator!: StartPositionCalculator;
     private sharedVariablesManager!: SharedVariablesManager;
@@ -568,6 +567,9 @@ export class GameScene extends DirtyScene {
             { x: this.Map.widthInPixels, y: this.Map.heightInPixels },
             waScaleManager
         );
+
+        this.pathfindingManager = new PathfindingManager(this, this.gameMap.getCollisionsGrid());
+        this.pathfindingManager.findPath({ x: 1, y: 3 }, { x: 29, y: 3 });
         biggestAvailableAreaStore.recompute();
         this.cameraManager.startFollowPlayer(this.CurrentPlayer);
 

front/src/Utils/PathfindingManager.ts

@@ -0,0 +1,43 @@
+import * as EasyStar from "easystarjs";
+
+export class PathfindingManager {
+    private scene: Phaser.Scene;
+
+    private easyStar;
+
+    constructor(scene: Phaser.Scene, collisionsGrid: number[][]) {
+        this.scene = scene;
+
+        this.easyStar = new EasyStar.js();
+
+        this.setGrid(collisionsGrid);
+    }
+
+    public findPath(start: { x: number; y: number }, end: { x: number; y: number }): void {
+        console.log("TRY TO FIND PATH");
+        this.easyStar.findPath(start.x, start.y, end.x, end.y, (path) => {
+            if (path === null) {
+                console.warn("Path was not found.");
+            } else {
+                console.log("path was found");
+                console.log(path);
+            }
+        });
+        this.easyStar.calculate();
+    }
+
+    private setGrid(grid: number[][]): void {
+        console.log(grid);
+        this.easyStar.setGrid(grid);
+        this.easyStar.setAcceptableTiles([0]); // zeroes are walkable
+        this.logGridToTheConsole(grid);
+    }
+
+    private logGridToTheConsole(grid: number[][]): void {
+        let rowNumber = 0;
+        for (const row of grid) {
+            console.log(`${rowNumber}:\t${row}`);
+            rowNumber += 1;
+        }
+    }
+}

front/yarn.lock

@@ -1990,6 +1990,13 @@ dot-case@^3.0.4:
     no-case "^3.0.4"
     tslib "^2.0.3"
 
+easystarjs@^0.4.4:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/easystarjs/-/easystarjs-0.4.4.tgz#8cec6d20d0d8660715da0301d1da440370a8f40a"
+  integrity sha512-ZSt0TkB8xuIXRIrKsM3jkmk1/cZUtyvf0DqOXf6wuKq9slx9UA5kkLtiaWhtmOQFJFKdabbvXwk6RO0znghArQ==
+  dependencies:
+    heap "0.2.6"
+
 ee-first@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
@@ -2925,6 +2932,11 @@ he@^1.2.0:
   resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
   integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
 
+heap@0.2.6:
+  version "0.2.6"
+  resolved "https://registry.yarnpkg.com/heap/-/heap-0.2.6.tgz#087e1f10b046932fc8594dd9e6d378afc9d1e5ac"
+  integrity sha1-CH4fELBGky/IWU3Z5tN4r8nR5aw=
+
 hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"