improved move and board export

src/games/checkers/checkersbase-model.js

@@ -137,18 +137,64 @@
 	/* Optional method.
 	 * Returns a string to represent the move for display to human. If not defined JSON is used.
 	 */
-	Model.Move.ToString = function() {
-		var posses=[PosToString(this.pos[0]),PosToString(this.pos[this.pos.length-1])];
+	Model.Move.ToString = function(format) {
+		format = format || "natural";
+		var self = this;
+
+		function NaturalFormat() {
+			var posses=[PosToString(self.pos[0]),PosToString(self.pos[self.pos.length-1])];
 			var sep='-';
-		for(var i=1;i<this.capt.length;i++)
-			if(this.capt[i]!=null) {
+			for(var i=1;i<self.capt.length;i++)
+				if(self.capt[i]!=null) {
 					sep='x';
-				if(this.capt.length>3)
-					posses.push(PosToString(this.capt[i]));
+					if(self.capt.length>3)
+						posses.push(PosToString(self.capt[i]));
 				}
 			return posses.join(sep);
 		}
 
+		function HubFormat() {
+			var sep = "-";
+			var parts = [PosToString(self.pos[0]), PosToString(self.pos[self.pos.length - 1])];
+			if (self.capt[1]) {
+				sep = "x";
+				var capts = self.capt.slice(1).map((pos) => {
+					return PosToString(pos);
+				});
+				capts.sort();
+				parts = parts.concat(capts);
+			}
+			return parts.join(sep);
+		}
+
+		function DxpFormat() {
+			var parts = [PosToString(self.pos[0]), PosToString(self.pos[self.pos.length - 1])];
+			if(self.capt[1]) {
+				parts.push(self.capt.length-1);
+				var capts = [];
+				for(var i=1;i<self.capt.length;i++)
+					capts.push(PosToString(self.capt[i]));
+				capts.sort();
+				parts = parts.concat(capts);
+			} else
+				parts.push(0);
+			return parts.map((num)=>{
+				return num<10 ? "0"+num : num;
+			}).join("");
+		}
+
+		switch(format) {
+			case "natural":
+				return NaturalFormat();
+			case "hub":
+				return HubFormat();
+			case "dxp":
+				return DxpFormat();
+			default:
+				return "??";
+		}
+	}
+	
 	/* Board object constructor.
 	 */
 	Model.Board.Init = function(aGame) {
@@ -734,11 +780,14 @@
 		return SuperGetBestMatchingMove.call(this,moveStr,candidateMoves);
 	}
 
-	Model.Board.ExportBoardState = function(aGame) {
-		//debugger;
+	Model.Board.ExportBoardState = function(aGame,format) {
+		format = format || "natural";
+		var self = this;
+
+		function FenFormat() {
 			var colors={};
 			var fenParts=[];
-		this.pieces.forEach(function(piece) {
+			self.pieces.forEach(function(piece) {
 				if(piece && piece.p!=null) {
 					var color=piece.s==1?'W':'B';
 					if(colors[color]===undefined)
@@ -791,4 +840,45 @@
 			return fen;
 		}
 
+		function DxpHubFormat(black) {
+			var poss = [];
+			for(var pos = 0; pos<self.board.length; pos++) {
+				var col=pos%boardWidth;
+				var row=(pos-col)/boardWidth;
+				var posIndex = (boardHeight - row -1)* boardWidth + col;
+				var pieceIndex = self.board[pos];
+				if(pieceIndex<0)
+					poss[posIndex] = "e";
+				else {
+					var piece = self.pieces[pieceIndex];
+					var t = piece.s == 1 ? 'w' : black;
+					if(piece.t==1)
+						t = t.toUpperCase();
+					poss[posIndex] = t;
+				}
+			}
+			return poss.join("");
+		}
+
+		function DxpFormat() {
+			return DxpHubFormat('z');
+		}
+
+		function HubFormat() {
+			return DxpHubFormat('z');
+		}
+
+		switch(format) {
+			case "natural":
+			case "fen":
+				return FenFormat();
+			case "dxp":
+				return DxpFormat();
+			case "hub":
+				return HubFormat();
+			default:
+				return JSON.stringify(this);
+		}
+	}
+
 })();