partey_workadventure/front/src/Phaser/Game/GameScene.ts

import {GameManager, gameManager, HasMovedEvent, MapObject, StatusGameManagerEnum} from "./GameManager";
import {GroupCreatedUpdatedMessageInterface, MessageUserPositionInterface} from "../../Connexion";
import {CurrentGamerInterface, GamerInterface, hasMovedEventName, Player} from "../Player/Player";
import { DEBUG_MODE, MAP_FILE_URL, RESOLUTION, ROOM, ZOOM_LEVEL} from "../../Enum/EnvironmentVariable";
import {ITiledMap, ITiledMapLayer, ITiledTileSet} from "../Map/ITiledMap";
import {PLAYER_RESOURCES} from "../Entity/PlayableCaracter";
import Texture = Phaser.Textures.Texture;
import Sprite = Phaser.GameObjects.Sprite;
import CanvasTexture = Phaser.Textures.CanvasTexture;
import CreateSceneFromObjectConfig = Phaser.Types.Scenes.CreateSceneFromObjectConfig;
import {getMapKeyByUrl} from "../Login/LogincScene";

export enum Textures {
    Player = "male1"
}

export interface GameSceneInterface extends Phaser.Scene {
    Map: Phaser.Tilemaps.Tilemap;
    createCurrentPlayer(UserId : string) : void;
    shareUserPosition(UsersPosition : Array<MessageUserPositionInterface>): void;
    shareGroupPosition(groupPositionMessage: GroupCreatedUpdatedMessageInterface): void;
    updateOrCreateMapPlayer(UsersPosition : Array<MessageUserPositionInterface>): void;
    deleteGroup(groupId: string): void;
}
export class GameScene extends Phaser.Scene implements GameSceneInterface, CreateSceneFromObjectConfig{
    GameManager : GameManager;
    Terrains : Array<Phaser.Tilemaps.Tileset>;
    CurrentPlayer: CurrentGamerInterface;
    MapPlayers : Phaser.Physics.Arcade.Group;
    Map: Phaser.Tilemaps.Tilemap;
    Layers : Array<Phaser.Tilemaps.StaticTilemapLayer>;
    Objects : Array<Phaser.Physics.Arcade.Sprite>;
    map: ITiledMap;
    groups: Map<string, Sprite>;
    startX = 704;// 22 case
    startY = 32; // 1 case
    circleTexture: CanvasTexture;

    MapKey: string;
    MapUrlFile: string;

    PositionNextScene: Array<any> = new Array<any>();

    constructor(MapKey : string = "", MapUrlFile: string = "") {
        super({
            key: MapKey
        });

        this.GameManager = gameManager;
        this.Terrains = [];
        this.groups = new Map<string, Sprite>();

        this.MapKey =  MapKey;
        this.MapUrlFile = MapUrlFile;
    }

    //hook preload scene
    preload(): void {
        this.GameManager.setCurrentGameScene(this);
        this.load.on('filecomplete-tilemapJSON-'+this.MapKey, (key: string, type: string, data: any) => {
            // Triggered when the map is loaded
            // Load tiles attached to the map recursively
            this.map = data.data;
            let url = this.MapUrlFile.substr(0, this.MapUrlFile.indexOf(`${this.MapKey}.json`));
            this.map.tilesets.forEach((tileset) => {
                if (typeof tileset.name === 'undefined' || typeof tileset.image === 'undefined') {
                    console.warn("Don't know how to handle tileset ", tileset)
                    return;
                }
                //TODO strategy to add access token
                this.load.image(tileset.name, `${url}/${tileset.image}`);
            })
        });
        //TODO strategy to add access token
        this.load.tilemapTiledJSON(this.MapKey, this.MapUrlFile);

        //add player png
        PLAYER_RESOURCES.forEach((playerResource: any) => {
            this.load.spritesheet(
                playerResource.name,
                playerResource.img,
                {frameWidth: 32, frameHeight: 32}
            );
        });

        this.load.bitmapFont('main_font', 'resources/fonts/arcade.png', 'resources/fonts/arcade.xml');
    }

    //hook initialisation
    init() {}

    //hook create scene
    create(): void {
        //initalise map
        this.Map = this.add.tilemap(this.MapKey);
        this.map.tilesets.forEach((tileset: ITiledTileSet) => {
            this.Terrains.push(this.Map.addTilesetImage(tileset.name, tileset.name));
        });

        //permit to set bound collision
        this.physics.world.setBounds(0,0, this.Map.widthInPixels, this.Map.heightInPixels);

        //add layer on map
        this.Layers = new Array<Phaser.Tilemaps.StaticTilemapLayer>();
        let depth = -2;
        this.map.layers.forEach((layer : ITiledMapLayer) => {
            if (layer.type === 'tilelayer') {
                this.addLayer(this.Map.createStaticLayer(layer.name, this.Terrains, 0, 0).setDepth(depth));
            }
            if (layer.type === 'tilelayer' && this.getExitSceneUrl(layer) !== undefined) {
                this.loadNextGame(layer, this.map.width, this.map.tilewidth, this.map.tileheight);
            }
            if (layer.type === 'tilelayer' && layer.name === "start") {
                this.startUser(layer);
            }
            if (layer.type === 'objectgroup' && layer.name === 'floorLayer') {
                depth = 10000;
            }
        });

        if (depth === -2) {
            throw new Error('Your map MUST contain a layer of type "objectgroup" whose name is "floorLayer" that represents the layer characters are drawn at.');
        }

        //add entities
        this.Objects = new Array<Phaser.Physics.Arcade.Sprite>();

        //init event click
        this.EventToClickOnTile();

        //initialise list of other player
        this.MapPlayers = this.physics.add.group({ immovable: true });

        //notify game manager can to create currentUser in map
        this.GameManager.createCurrentPlayer();

        //initialise camera
        this.initCamera();


        // Let's generate the circle for the group delimiter
        let circleElement = Object.values(this.textures.list).find((object: Texture) => object.key === 'circleSprite');
        if(circleElement) {
            this.textures.remove('circleSprite');
        }
        this.circleTexture = this.textures.createCanvas('circleSprite', 96, 96);
        let context = this.circleTexture.context;
        context.beginPath();
        context.arc(48, 48, 48, 0, 2 * Math.PI, false);
        // context.lineWidth = 5;
        context.strokeStyle = '#ffffff';
        context.stroke();
        this.circleTexture.refresh();
    }

    private getExitSceneUrl(layer: ITiledMapLayer): string|undefined {
        let properties : any = layer.properties;
        if (!properties) {
            return undefined;
        }
        let obj = properties.find((property:any) => property.name === "exitSceneUrl");
        if (obj === undefined) {
            return undefined;
        }
        return obj.value;
    }

    /**
     *
     * @param layer
     * @param mapWidth
     * @param tileWidth
     * @param tileHeight
     */
    private loadNextGame(layer: ITiledMapLayer, mapWidth: number, tileWidth: number, tileHeight: number){
        let exitSceneUrl = this.getExitSceneUrl(layer);

        let exitSceneKey = gameManager.loadMap(exitSceneUrl, this.scene);
        /*let exitSceneKey = getMapKeyByUrl(exitSceneUrl);

        let gameIndex = this.scene.getIndex(exitSceneKey);
        let game : Phaser.Scene = null;
        if(gameIndex === -1){
            game = new GameScene(exitSceneKey, `${MAP_FILE_URL}${exitSceneUrl}`);
            this.scene.add(exitSceneKey, game, false);
        }else{
            game = this.scene.get(exitSceneKey);
        }
        if(!game){
            return;
        }*/
        let tiles : any = layer.data;
        tiles.forEach((objectKey : number, key: number) => {
            if(objectKey === 0){
                return;
            }
            //key + 1 because the start x = 0;
            let y : number = parseInt(((key + 1) / mapWidth).toString());
            let x : number = key - (y * mapWidth);
            //push and save switching case
            // TODO: this is not efficient. We should refactor that to enable a search by key. For instance: this.PositionNextScene[y][x] = exitSceneKey
            this.PositionNextScene.push({
                xStart: (x * tileWidth),
                yStart: (y * tileWidth),
                xEnd: ((x +1) * tileHeight),
                yEnd: ((y + 1) * tileHeight),
                key: exitSceneKey
            })
        });
    }

    /**
     * @param layer
     */
    private startUser(layer: ITiledMapLayer){
        let tiles : any = layer.data;
        tiles.forEach((objectKey : number, key: number) => {
            if(objectKey === 0){
                return;
            }
            let y = Math.floor(key / layer.width);
            let x = key % layer.width;

            this.startX = (x * 32);
            this.startY = (y * 32);
        });
    }

    //todo: in a dedicated class/function?
    initCamera() {
        this.cameras.main.setBounds(0,0, this.Map.widthInPixels, this.Map.heightInPixels);
        this.cameras.main.startFollow(this.CurrentPlayer);
        this.cameras.main.setZoom(ZOOM_LEVEL);
    }

    addLayer(Layer : Phaser.Tilemaps.StaticTilemapLayer){
        this.Layers.push(Layer);
    }

    createCollisionWithPlayer() {
        //add collision layer
        this.Layers.forEach((Layer: Phaser.Tilemaps.StaticTilemapLayer) => {
            this.physics.add.collider(this.CurrentPlayer, Layer, (object1: any, object2: any) => {
                //this.CurrentPlayer.say("Collision with layer : "+ (object2 as Tile).layer.name)
            });
            Layer.setCollisionByProperty({collides: true});
            if (DEBUG_MODE) {
                //debug code to see the collision hitbox of the object in the top layer
                Layer.renderDebug(this.add.graphics(), {
                    tileColor: null, //non-colliding tiles
                    collidingTileColor: new Phaser.Display.Color(243, 134, 48, 200), // Colliding tiles,
                    faceColor: new Phaser.Display.Color(40, 39, 37, 255) // Colliding face edges
                });
            }
        });
    }

    addSpite(Object : Phaser.Physics.Arcade.Sprite){
        Object.setImmovable(true);
        this.Objects.push(Object);
    }

    createCollisionObject(){
        this.Objects.forEach((Object : Phaser.Physics.Arcade.Sprite) => {
            this.physics.add.collider(this.CurrentPlayer, Object, (object1: any, object2: any) => {
                //this.CurrentPlayer.say("Collision with object : " + (object2 as Phaser.Physics.Arcade.Sprite).texture.key)
            });
        })
    }

    createCurrentPlayer(UserId : string){
        //initialise player
        //TODO create animation moving between exit and strat
        this.CurrentPlayer = new Player(
            UserId,
            this,
            this.startX,
            this.startY,
            this.GameManager.getPlayerName(),
            this.GameManager.getCharacterSelected()
        );
        this.CurrentPlayer.initAnimation();

        //create collision
        this.createCollisionWithPlayer();
        this.createCollisionObject();

        //join room
        this.GameManager.joinRoom(this.scene.key, this.CurrentPlayer.PlayerTexture);

        //listen event to share position of user
        this.CurrentPlayer.on(hasMovedEventName, this.pushPlayerPosition.bind(this))
    }

    pushPlayerPosition(event: HasMovedEvent) {
        this.GameManager.pushPlayerPosition(event);
    }

    EventToClickOnTile(){
        // debug code to get a tile properties by clicking on it
        this.input.on("pointerdown", (pointer: Phaser.Input.Pointer)=>{
            //pixel position toz tile position
            let tile = this.Map.getTileAt(this.Map.worldToTileX(pointer.worldX), this.Map.worldToTileY(pointer.worldY));
            if(tile){
                this.CurrentPlayer.say("Your touch " + tile.layer.name);
            }
        });
    }

    /**
     * @param time
     * @param delta The delta time in ms since the last frame. This is a smoothed and capped value based on the FPS rate.
     */
    update(time: number, delta: number) : void {
        this.CurrentPlayer.moveUser(delta);
        let nextSceneKey = this.checkToExit();
        if(nextSceneKey){
            this.scene.start(nextSceneKey.key);
        }
    }

    /**
     *
     */
    checkToExit(){
        if(this.PositionNextScene.length === 0){
            return null;
        }
        return this.PositionNextScene.find((position : any) => {
            return position.xStart <= this.CurrentPlayer.x && this.CurrentPlayer.x <= position.xEnd
            && position.yStart <= this.CurrentPlayer.y && this.CurrentPlayer.y <= position.yEnd
        })
    }

    /**
     * Share position in scene
     * @param UsersPosition
     */
    shareUserPosition(UsersPosition : Array<MessageUserPositionInterface>): void {
        this.updateOrCreateMapPlayer(UsersPosition);
    }

    /**
     * Create new player and clean the player on the map
     * @param UsersPosition
     */
    updateOrCreateMapPlayer(UsersPosition : Array<MessageUserPositionInterface>){
        if(!this.CurrentPlayer){
            return;
        }

        //add or create new user
        UsersPosition.forEach((userPosition : MessageUserPositionInterface) => {
            if(userPosition.userId === this.CurrentPlayer.userId){
                return;
            }
            let player = this.findPlayerInMap(userPosition.userId);
            if(!player){
                this.addPlayer(userPosition);
            }else{
                player.updatePosition(userPosition);
            }
        });

        //clean map
        this.MapPlayers.getChildren().forEach((player: GamerInterface) => {
            if(UsersPosition.find((message : MessageUserPositionInterface) => message.userId === player.userId)){
                return;
            }
            player.destroy();
            this.MapPlayers.remove(player);
        });
    }

    private findPlayerInMap(UserId : string) : GamerInterface | null{
        let player = this.MapPlayers.getChildren().find((player: Player) => UserId === player.userId);
        if(!player){
            return null;
        }
        return (player as GamerInterface);
    }

    /**
     * Create new player
     * @param MessageUserPosition
     */
    addPlayer(MessageUserPosition : MessageUserPositionInterface) : void{
        //initialise player
        let player = new Player(
            MessageUserPosition.userId,
            this,
            MessageUserPosition.position.x,
            MessageUserPosition.position.y,
            MessageUserPosition.name,
            MessageUserPosition.character
        );
        player.initAnimation();
        this.MapPlayers.add(player);
        player.updatePosition(MessageUserPosition);

        //init collision
        /*this.physics.add.collider(this.CurrentPlayer, player, (CurrentPlayer: CurrentGamerInterface, MapPlayer: GamerInterface) => {
            CurrentPlayer.say("Hello, how are you ? ");
        });*/
    }

    shareGroupPosition(groupPositionMessage: GroupCreatedUpdatedMessageInterface) {
        let groupId = groupPositionMessage.groupId;

        if (this.groups.has(groupId)) {
            this.groups.get(groupId).setPosition(Math.round(groupPositionMessage.position.x), Math.round(groupPositionMessage.position.y));
        } else {
            // TODO: circle radius should not be hard stored
            let sprite = new Sprite(
                this,
                Math.round(groupPositionMessage.position.x),
                Math.round(groupPositionMessage.position.y),
                'circleSprite');
            sprite.setDisplayOrigin(48, 48);
            this.add.existing(sprite);
            this.groups.set(groupId, sprite);
        }
    }

    deleteGroup(groupId: string): void {
        if(!this.groups.get(groupId)){
            return;
        }
        this.groups.get(groupId).destroy();
        this.groups.delete(groupId);
    }
}