Create gamestate from ptn file

lib/gameState.ts

@@ -1,8 +1,13 @@
-import PTNFileParser = require('ptn-file-parser')
-import TakBoard = require('./takBoard')
+import PTNFileParser = require('ptn-file-parser');
+import TakBoard = require('./takBoard');
+import Move = require('./move');
 
 class GameState {
   public size: number;
+  public playerOne: string = "Unkown";
+  public playerTwo: string = "Unkown";
+  public isGameOver: boolean = false;
+  public result: string = "";
   private _board: TakBoard;
 
   constructor(state: object = {size: 5}){
@@ -12,9 +17,27 @@ class GameState {
 
   static fromPtnFile(file: string): GameState {
     let ptnFile: any = PTNFileParser.parsePtnFile(file)
-    let size = new Number(ptnFile.tags['Size'])
+    let size = +ptnFile.tags['Size'];
+    let state = new GameState({size})
+    if(ptnFile.tags['Player1']) state.playerOne = ptnFile.tags['Player1'];
+    if(ptnFile.tags['Player2']) state.playerTwo = ptnFile.tags['Player2'];
+    // possible outcomes are R-0/0-R (road win), F-0/0-F (flat win), 1-0/0-1 (resignation), and 1/2-1/2 (draw)
+    if(ptnFile.tags['Result'] && (ptnFile.tags['Result'] as string).search(/[RF1]/gi) >= 0) {
+      state.isGameOver = true;
+      state.result = ptnFile.tags['Result'];
+    }
     // ToDo! loop through moves and place pieces
-    return new GameState({size})
+    let moveNr = 0;
+    while(ptnFile.whiteMoves[moveNr]) {
+      state.move(Move.fromPtn(ptnFile.whiteMoves[moveNr]))
+      if(!ptnFile.blackMoves[moveNr]) break;
+      state.move(Move.fromPtn(ptnFile.blackMoves[moveNr]))
+    }
+    return state;
+  }
+
+  move(move: Move) {
+    throw new Error("Method not implemented.");
   }
 }
 

lib/move.ts

@@ -0,0 +1,48 @@
+const moveRegex = /(\d)?([CSF])?([a-h][1-8])(?:([<>+-])([1-8]+))?/g;
+
+class Move {
+    public file: string;
+    public rank: number;
+    public stone: string = "F";
+    public direction: string = "";
+    public placedPieces: string[] = [];
+    constructor(ptn: string) {
+        let parsed = ptn.match(moveRegex);
+        if(!parsed) throw new Error("Invalid PTN string (failed to parse)");
+        if(!parsed[3]) throw new Error("Invalid PTN string (missing rank and file)");
+        let fileAndRank = parsed[3].split("");
+        this.rank = Number(fileAndRank[1]);
+        this.file = fileAndRank[0];
+        if(!this.rank) throw new Error("Invalid PTN string (invalid rank)");
+        if(parsed[2]) {
+            this.stone = parsed[2];
+        }
+        if(parsed[4]) {
+            this.direction = parsed[4];
+            if(!parsed[5]) throw new Error("Invalid PTN string (direction but no placed pieces)");
+            if(!parsed[1]) throw new Error("Invalid PTN string (no pieces picked up)");
+            this.placedPieces = parsed[5].split("");
+            let count = 0;
+            for(let num of this.placedPieces) {
+                count += Number(num);
+            }
+            if(count !== Number(parsed[1])) throw new Error("Invalid PTN string (picked up != placed)");
+        }
+    }
+
+    static fromPtn(ptn: string): Move {
+        return new Move(ptn);
+    }
+
+    public toObject(): object {
+        return {
+            file: this.file,
+            rank: this.rank,
+            stone: this.stone,
+            direction: this.direction,
+            placedPieces: this.placedPieces
+        }
+    }
+}
+
+export = Move;

test/gameStateTests.js

@@ -1,10 +1,19 @@
 "use strict";
 const expect = require("chai").expect;
 const GameState = require("../dist/gameState")
+const ptnFile = require('./resources/ptnFile')
 
 describe("GameState", () => {
   it("should assume a board size of 5", () => {
     var state = new GameState();
     expect(state.size).to.equal(5);
   });
+  it("should read data from PTN file", () => {
+    var state = GameState.fromPtnFile(ptnFile.simplePtnFile);
+    expect(state.size).to.equal(6);
+    expect(state.playerOne).to.equal("NohatCoder");
+    expect(state.playerTwo).to.equal("fwwwwibib");
+    expect(state.isGameOver).to.be.true;
+    expect(state.result).to.equal("R-0");
+  });
 });

test/resources/ptnFile.js

@@ -0,0 +1,20 @@
+exports.simplePtnFile = `[Site "PlayTak.com"]
+[Event "Online Play"]
+[Date "2018.10.28"]
+[Time "16:10:44"]
+[Player1 "NohatCoder"]
+[Player2 "fwwwwibib"]
+[Clock "10:0 +20"]
+[Result "R-0"]
+[Size "6"]
+
+1. a6 f6
+2. d4 c4
+3. d3 c3
+4. d5 c5
+5. d2 Ce4
+6. c2 e3
+7. e2 b2
+8. Cb3 1e4<1
+9. 1d3<1 Sd1
+10. a3 1d1+1`