Draft of Rules view (not working) with computer play

[vchess.git] / client / src / components / Game.vue

<template lang="pug">
.row
  .col-sm-12.col-md-10.col-md-offset-1.col-lg-8.col-lg-offset-2
    input#modalEog.modal(type="checkbox")
    div(role="dialog" aria-labelledby="eogMessage")
      .card.smallpad.small-modal.text-center
        label.modal-close(for="modalEog")
        h3#eogMessage.section {{ endgameMessage }}
      Chat(v-if="showChat" :opponents="opponents" :people="people")
      Board(:vr="vr" :last-move="lastMove" :mode="mode" :user-color="mycolor"
        :orientation="orientation" @play-move="play")
      .button-group
        button(@click="() => play()") Play
        button(@click="() => undo()") Undo
        button(@click="flip") Flip
        button(@click="gotoBegin") GotoBegin
        button(@click="gotoEnd") GotoEnd
      .button-group(v-if="mode=='human'")
        button(@click="offerDraw") Draw
        button(@click="abortGame") Abort
        button(@click="resign") Resign
      div(v-if="mode=='human' && subMode=='corr'")
        textarea(v-show="score=='*' && vr.turn==mycolor" v-model="corrMsg")
        div(v-show="cursor>=0") {{ moves[cursor].message }}
      .section-content(v-if="showFen && !!vr" id="fen-div")
        p#fenString.text-center {{ vr.getFen() }}
      #pgnDiv.section-content
        a#download(href="#")
        .button-group
          button#downloadBtn(@click="download") {{ st.tr["Download PGN"] }}
          button Import game
      MoveList(v-if="showMoves"
        :moves="moves" :cursor="cursor" @goto-move="gotoMove")
</template>

<script>
// Game logic on a variant page: 3 modes, analyze, computer or human
// TODO: envoyer juste "light move", sans FEN ni notation ...etc
// TODO: if I'm an observer and player(s) disconnect/reconnect, how to find me ?
//      onClick :: ask full game to remote player, and register as an observer in game
//      (use gameId to communicate)
//      on landing on game :: if gameId not found locally, check remotely
//      ==> il manque un param dans game : "remoteId"
// TODO: import store, st
import Board from "@/components/Board.vue";
import Chat from "@/components/Chat.vue";
import MoveList from "@/components/MoveList.vue";
export default {
  name: 'my-game',
  // gameId: to find the game in storage (assumption: it exists)
  // fen: to start from a FEN without identifiers (analyze mode)
  // subMode: "auto" (game comp vs comp) or "corr" (correspondance game),
  // or "examine" (after human game: TODO)
  // gameRef in URL hash (listen for changes)
  props: ["fen","mode","subMode"],
  data: function() {
    return {
      gameRef: "",
      // Web worker to play computer moves without freezing interface:
      compWorker: new Worker('/javascripts/playCompMove.js'),
      timeStart: undefined, //time when computer starts thinking
      vr: null, //VariantRules object, describing the game state + rules
      endgameMessage: "",
      orientation: "w",
      lockCompThink: false, //to avoid some ghost moves
      myname: user.name, //may be anonymous (thus no name)
      opponents: {}, //filled later (potentially 2 or 3 opponents)
      drawOfferSent: false, //did I just ask for draw?
      people: {}, //observers
      score: "*", //'*' means 'unfinished'
      // userColor: given by gameId, or fen in problems mode (if no game Id)...
      mycolor: "w",
      fenStart: "",
      moves: [], //TODO: initialize if gameId is defined...
      cursor: -1, //index of the move just played
      lastMove: null,
    };
  },
//  watch: {
//    fen: function() {
//      // (Security) No effect if a computer move is in progress:
//      if (this.mode == "computer" && this.lockCompThink)
//        return this.$emit("computer-think");
//      this.newGameFromFen();
//    },
////    // TODO: $route: ...
////    gameRef: function() {
////      this.loadGame();
////    },
//  },
//  computed: {
//    showChat: function() {
//      return this.mode=='human' && this.score != '*';
//    },
//    showMoves: function() {
//      return true;
//      //return window.innerWidth >= 768;
//    },
//    showFen: function() {
//      return variant.name != "Dark" || this.score != "*";
//    },
//  },
//  // Modal end of game, and then sub-components
//  created: function() {
//    if (!!this.gameRef)
//      this.loadGame();
//    else if (!!this.fen)
//    {
//      this.vr = new V(this.fen);
//      this.fenStart = this.fen;
//    }
//    // TODO: if I'm one of the players in game, then:
//    // Send ping to server (answer pong if opponent is connected)
//    if (true && !!this.conn && !!this.gameRef)
//    {
//      this.conn.onopen = () => {
//        this.conn.send(JSON.stringify({
//          code:"ping",oppid:this.oppid,gameId:this.gameRef.id}));
//      };
//    }
//    // TODO: also handle "draw accepted" (use opponents array?)
//    // --> must give this info also when sending lastState...
//    // and, if all players agree then OK draw (end game ...etc)
//    const socketMessageListener = msg => {
//      const data = JSON.parse(msg.data);
//      let L = undefined;
//      switch (data.code)
//      {
//        case "newmove": //..he played!
//          this.play(data.move, variant.name!="Dark" ? "animate" : null);
//          break;
//        case "pong": //received if we sent a ping (game still alive on our side)
//          if (this.gameRef.id != data.gameId)
//            break; //games IDs don't match: definitely over...
//          this.oppConnected = true;
//          // Send our "last state" informations to opponent(s)
//          L = this.vr.moves.length;
//          Object.keys(this.opponents).forEach(oid => {
//            this.conn.send(JSON.stringify({
//              code: "lastate",
//              oppid: oid,
//              gameId: this.gameRef.id,
//              lastMove: (L>0?this.vr.moves[L-1]:undefined),
//              movesCount: L,
//            }));
//          });
//          break;
//        // TODO: refactor this, because at 3 or 4 players we may have missed 2 or 3 moves (not just one)
//        case "lastate": //got opponent infos about last move
//          L = this.vr.moves.length;
//          if (this.gameRef.id != data.gameId)
//            break; //games IDs don't match: nothing we can do...
//          // OK, opponent still in game (which might be over)
//          if (this.score != "*")
//          {
//            // We finished the game (any result possible)
//            this.conn.send(JSON.stringify({
//              code: "lastate",
//              oppid: data.oppid,
//              gameId: this.gameRef.id,
//              score: this.score,
//            }));
//          }
//          else if (!!data.score) //opponent finished the game
//            this.endGame(data.score);
//          else if (data.movesCount < L)
//          {
//            // We must tell last move to opponent
//            this.conn.send(JSON.stringify({
//              code: "lastate",
//              oppid: this.opponent.id,
//              gameId: this.gameRef.id,
//              lastMove: this.vr.moves[L-1],
//              movesCount: L,
//            }));
//          }
//          else if (data.movesCount > L) //just got last move from him
//            this.play(data.lastMove, "animate");
//          break;
//        case "resign": //..you won!
//          this.endGame(this.mycolor=="w"?"1-0":"0-1");
//          break;
//        // TODO: also use (dis)connect info to count online players?
//        case "connect":
//        case "disconnect":
//          if (this.mode=="human")
//          {
//            const online = (data.code == "connect");
//            // If this is an opponent ?
//            if (!!this.opponents[data.id])
//              this.opponents[data.id].online = online;
//            else
//            {
//              // Or an observer ?
//              if (!online)
//                delete this.people[data.id];
//              else
//                this.people[data.id] = data.name;
//            }
//          }
//          break;
//      }
//    };
//    const socketCloseListener = () => {
//      this.conn.addEventListener('message', socketMessageListener);
//      this.conn.addEventListener('close', socketCloseListener);
//    };
//    if (!!this.conn)
//    {
//      this.conn.onmessage = socketMessageListener;
//      this.conn.onclose = socketCloseListener;
//    }
//    // Computer moves web worker logic: (TODO: also for observers in HH games ?)
//    this.compWorker.postMessage(["scripts",variant.name]);
//    this.compWorker.onmessage = e => {
//      this.lockCompThink = true; //to avoid some ghost moves
//      let compMove = e.data;
//      if (!Array.isArray(compMove))
//        compMove = [compMove]; //to deal with MarseilleRules
//      // Small delay for the bot to appear "more human"
//      const delay = Math.max(500-(Date.now()-this.timeStart), 0);
//      setTimeout(() => {
//        const animate = variant.name != "Dark";
//        this.play(compMove[0], animate);
//        if (compMove.length == 2)
//          setTimeout( () => { this.play(compMove[1], animate); }, 750);
//        else //250 == length of animation (TODO: should be a constant somewhere)
//          setTimeout( () => this.lockCompThink = false, 250);
//      }, delay);
//    }
//  },
//  // dans variant.js (plutôt room.js) conn gère aussi les challenges
//  // et les chats dans chat.js. Puis en webRTC, repenser tout ça.
//  methods: {
//    offerDraw: function() {
//      if (!confirm("Offer draw?"))
//        return;
//      // Stay in "draw offer sent" state until next move is played
//      this.drawOfferSent = true;
//      if (this.subMode == "corr")
//      {
//        // TODO: set drawOffer on in game (how ?)
//      }
//      else //live game
//      {
//        this.opponents.forEach(o => {
//          if (!!o.online)
//          {
//            try {
//              this.conn.send(JSON.stringify({code: "draw", oppid: o.id}));
//            } catch (INVALID_STATE_ERR) {
//              return;
//            }
//          }
//        });
//      }
//    },
//    // + conn handling: "draw" message ==> agree for draw (if we have "drawOffered" at true)
//    receiveDrawOffer: function() {
//      //if (...)
//      // TODO: ignore if preventDrawOffer is set; otherwise show modal box with option "prevent future offers"
//      // if accept: send message "draw"
//    },
//    abortGame: function() {
//      if (!confirm("Abort the game?"))
//        return;
//      //+ bouton "abort" avec score == "?" + demander confirmation pour toutes ces actions,
//      //send message: "gameOver" avec score "?"
//    },
//    resign: function(e) {
//      if (!confirm("Resign the game?"))
//        return;
//      if (this.mode == "human" && this.oppConnected(this.oppid))
//      {
//        try {
//          this.conn.send(JSON.stringify({code: "resign", oppid: this.oppid}));
//        } catch (INVALID_STATE_ERR) {
//          return;
//        }
//      }
//      this.endGame(this.mycolor=="w"?"0-1":"1-0");
//    },
//    translate: translate,
//    newGameFromFen: function() {
//      this.vr = new V(this.fen);
//      this.moves = [];
//      this.cursor = -1;
//      this.fenStart = this.fen;
//      this.score = "*";
//      if (this.mode == "analyze")
//      {
//        this.mycolor = V.ParseFen(this.fen).turn;
//        this.orientation = this.mycolor;
//      }
//      else if (this.mode == "computer") //only other alternative (HH with gameId)
//      {
//        this.mycolor = (Math.random() < 0.5 ? "w" : "b");
//        this.orientation = this.mycolor;
//        this.compWorker.postMessage(["init",this.fen]);
//        if (this.mycolor != "w" || this.subMode == "auto")
//          this.playComputerMove();
//      }
//    },
//    loadGame: function() {
//      // TODO: ask game to remote peer if this.remoteId is set
//      // (or just if game not found locally)
//      // NOTE: if it's a corr game, ask it from server
//      const game = getGameFromStorage(this.gameRef.id, this.gameRef.uid); //uid may be blank
//      this.opponent.id = game.oppid; //opponent ID in case of running HH game
//      this.opponent.name = game.oppname; //maye be blank (if anonymous)
//      this.score = game.score;
//      this.mycolor = game.mycolor;
//      this.fenStart = game.fenStart;
//      this.moves = game.moves;
//      this.cursor = game.moves.length-1;
//      this.lastMove = (game.moves.length > 0 ? game.moves[this.cursor] : null);
//    },
//    setEndgameMessage: function(score) {
//      let eogMessage = "Undefined";
//      switch (score)
//      {
//        case "1-0":
//          eogMessage = translations["White win"];
//          break;
//        case "0-1":
//          eogMessage = translations["Black win"];
//          break;
//        case "1/2":
//          eogMessage = translations["Draw"];
//          break;
//        case "?":
//          eogMessage = "Unfinished";
//          break;
//      }
//      this.endgameMessage = eogMessage;
//    },
//    download: function() {
//      const content = this.getPgn();
//      // Prepare and trigger download link
//      let downloadAnchor = document.getElementById("download");
//      downloadAnchor.setAttribute("download", "game.pgn");
//      downloadAnchor.href = "data:text/plain;charset=utf-8," + encodeURIComponent(content);
//      downloadAnchor.click();
//    },
//    getPgn: function() {
//      let pgn = "";
//      pgn += '[Site "vchess.club"]\n';
//      const opponent = (this.mode=="human" ? "Anonymous" : "Computer");
//      pgn += '[Variant "' + variant.name + '"]\n';
//      pgn += '[Date "' + getDate(new Date()) + '"]\n';
//      const whiteName = ["human","computer"].includes(this.mode)
//        ? (this.mycolor=='w'?'Myself':opponent)
//        : "analyze";
//      const blackName = ["human","computer"].includes(this.mode)
//        ? (this.mycolor=='b'?'Myself':opponent)
//        : "analyze";
//      pgn += '[White "' + whiteName + '"]\n';
//      pgn += '[Black "' + blackName + '"]\n';
//      pgn += '[Fen "' + this.fenStart + '"]\n';
//      pgn += '[Result "' + this.score + '"]\n\n';
//      let counter = 1;
//      let i = 0;
//      while (i < this.moves.length)
//      {
//        pgn += (counter++) + ".";
//        for (let color of ["w","b"])
//        {
//          let move = "";
//          while (i < this.moves.length && this.moves[i].color == color)
//            move += this.moves[i++].notation[0] + ",";
//          move = move.slice(0,-1); //remove last comma
//          pgn += move + (i < this.moves.length-1 ? " " : "");
//        }
//      }
//      return pgn + "\n";
//    },
//    showScoreMsg: function(score) {
//      this.setEndgameMessage(score);
//      let modalBox = document.getElementById("modal-eog");
//      modalBox.checked = true;
//      setTimeout(() => { modalBox.checked = false; }, 2000);
//    },
//    endGame: function(score) {
//      this.score = score;
//      this.showScoreMsg(score);
//      if (this.mode == "human")
//        localStorage["score"] = score;
//      this.$emit("game-over");
//    },
//    oppConnected: function(uid) {
//      return this.opponents.any(o => o.id == uidi && o.online);
//    },
//    playComputerMove: function() {
//      this.timeStart = Date.now();
//      this.compWorker.postMessage(["askmove"]);
//    },
//    animateMove: function(move) {
//      let startSquare = document.getElementById(getSquareId(move.start));
//      let endSquare = document.getElementById(getSquareId(move.end));
//      let rectStart = startSquare.getBoundingClientRect();
//      let rectEnd = endSquare.getBoundingClientRect();
//      let translation = {x:rectEnd.x-rectStart.x, y:rectEnd.y-rectStart.y};
//      let movingPiece =
//        document.querySelector("#" + getSquareId(move.start) + " > img.piece");
//      // HACK for animation (with positive translate, image slides "under background")
//      // Possible improvement: just alter squares on the piece's way...
//      squares = document.getElementsByClassName("board");
//      for (let i=0; i<squares.length; i++)
//      {
//        let square = squares.item(i);
//        if (square.id != getSquareId(move.start))
//          square.style.zIndex = "-1";
//      }
//      movingPiece.style.transform = "translate(" + translation.x + "px," +
//        translation.y + "px)";
//      movingPiece.style.transitionDuration = "0.2s";
//      movingPiece.style.zIndex = "3000";
//      setTimeout( () => {
//        for (let i=0; i<squares.length; i++)
//          squares.item(i).style.zIndex = "auto";
//        movingPiece.style = {}; //required e.g. for 0-0 with KR swap
//        this.play(move);
//      }, 250);
//    },
//    play: function(move, programmatic) {
//      let navigate = !move;
//      // Forbid playing outside analyze mode when cursor isn't at moves.length-1
//      // (except if we receive opponent's move, human or computer)
//      if (!navigate && this.mode != "analyze" && !programmatic
//        && this.cursor < this.moves.length-1)
//      {
//        return;
//      }
//      if (navigate)
//      {
//        if (this.cursor == this.moves.length-1)
//          return; //no more moves
//        move = this.moves[this.cursor+1];
//      }
//      if (!!programmatic) //computer or (remote) human opponent
//      {
//        if (this.cursor < this.moves.length-1)
//          this.gotoEnd(); //required to play the move
//        return this.animateMove(move);
//      }
//      // Not programmatic, or animation is over
//      if (this.mode == "human" && this.subMode == "corr" && this.mycolor == this.vr.turn)
//      {
//        // TODO: show confirm box "validate move ?"
//      }
//      if (!move.notation)
//        move.notation = this.vr.getNotation(move);
//      if (!move.color)
//        move.color = this.vr.turn;
//      this.vr.play(move);
//      this.cursor++;
//      this.lastMove = move;
//      if (!move.fen)
//        move.fen = this.vr.getFen();
//      if (this.settings.sound == 2)
//        new Audio("/sounds/move.mp3").play().catch(err => {});
//      if (this.mode == "human")
//      {
//        updateStorage(move); //after our moves and opponent moves
//        if (this.vr.turn == this.mycolor)
//          this.conn.send(JSON.stringify({code:"newmove", move:move, oppid:this.oppid}));
//      }
//      else if (this.mode == "computer")
//      {
//        // Send the move to web worker (including his own moves)
//        this.compWorker.postMessage(["newmove",move]);
//      }
//      if (!navigate && (this.score == "*" || this.mode == "analyze"))
//      {
//        // Stack move on movesList at current cursor
//        if (this.cursor == this.moves.length)
//          this.moves.push(move);
//        else
//          this.moves = this.moves.slice(0,this.cursor).concat([move]);
//      }
//      // Is opponent in check?
//      this.incheck = this.vr.getCheckSquares(this.vr.turn);
//      const score = this.vr.getCurrentScore();
//      if (score != "*")
//      {
//        if (["human","computer"].includes(this.mode))
//          this.endGame(score);
//        else //just show score on screen (allow undo)
//          this.showScoreMsg(score);
//      }
//      // subTurn condition for Marseille (and Avalanche) rules
//      else if ((this.mode == "computer" && (!this.vr.subTurn || this.vr.subTurn <= 1))
//        && (this.subMode == "auto" || this.vr.turn != this.mycolor))
//      {
//        this.playComputerMove();
//      }
//      // https://vuejs.org/v2/guide/list.html#Caveats (also for undo)
//      if (navigate)
//        this.$children[0].$forceUpdate(); //TODO!?
//    },
//    undo: function(move) {
//      let navigate = !move;
//      if (navigate)
//      {
//        if (this.cursor < 0)
//          return; //no more moves
//        move = this.moves[this.cursor];
//      }
//      this.vr.undo(move);
//      this.cursor--;
//      this.lastMove = (this.cursor >= 0 ? this.moves[this.cursor] : undefined);
//      if (this.settings.sound == 2)
//        new Audio("/sounds/undo.mp3").play().catch(err => {});
//      this.incheck = this.vr.getCheckSquares(this.vr.turn);
//      if (navigate)
//        this.$children[0].$forceUpdate(); //TODO!?
//      else if (this.mode == "analyze") //TODO: can this happen?
//        this.moves.pop();
//    },
//    gotoMove: function(index) {
//      this.vr = new V(this.moves[index].fen);
//      this.cursor = index;
//      this.lastMove = this.moves[index];
//    },
//    gotoBegin: function() {
//      this.vr = new V(this.fenStart);
//      this.cursor = -1;
//      this.lastMove = null;
//    },
//    gotoEnd: function() {
//      this.gotoMove(this.moves.length-1);
//    },
//    flip: function() {
//      this.orientation = V.GetNextCol(this.orientation);
//    },
//  },
};
</script>