X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fclient_OLD%2Fjavascripts%2Fvariants%2FCheckered.js;fp=client%2Fclient_OLD%2Fjavascripts%2Fvariants%2FCheckered.js;h=0000000000000000000000000000000000000000;hb=8d61fc4ab7373b4a576f3f9108cdf7768ae27096;hp=9de46ff1bca14558312086bf1e22433a0fa23128;hpb=760865ac92508676c0047b84c5ba3e12d41d7c20;p=vchess.git

diff --git a/client/client_OLD/javascripts/variants/Checkered.js b/client/client_OLD/javascripts/variants/Checkered.js
deleted file mode 100644
index 9de46ff1..00000000
--- a/client/client_OLD/javascripts/variants/Checkered.js
+++ /dev/null
@@ -1,301 +0,0 @@
-class CheckeredRules extends ChessRules
-{
-	static getPpath(b)
-	{
-		return b[0]=='c' ? "Checkered/"+b : b;
-	}
-
-	static board2fen(b)
-	{
-		const checkered_codes = {
-			'p': 's',
-			'q': 't',
-			'r': 'u',
-			'b': 'c',
-			'n': 'o',
-		};
-		if (b[0]=="c")
-			return checkered_codes[b[1]];
-		return ChessRules.board2fen(b);
-	}
-
-	static fen2board(f)
-	{
-		// Tolerate upper-case versions of checkered pieces (why not?)
-		const checkered_pieces = {
-			's': 'p',
-			'S': 'p',
-			't': 'q',
-			'T': 'q',
-			'u': 'r',
-			'U': 'r',
-			'c': 'b',
-			'C': 'b',
-			'o': 'n',
-			'O': 'n',
-		};
-		if (Object.keys(checkered_pieces).includes(f))
-			return 'c'+checkered_pieces[f];
-		return ChessRules.fen2board(f);
-	}
-
-	static get PIECES()
-	{
-		return ChessRules.PIECES.concat(['s','t','u','c','o']);
-	}
-
-	static IsGoodFlags(flags)
-	{
-		// 4 for castle + 16 for pawns
-		return !!flags.match(/^[01]{20,20}$/);
-	}
-
-	setFlags(fenflags)
-	{
-		super.setFlags(fenflags); //castleFlags
-		this.pawnFlags =
-		{
-			"w": _.map(_.range(8), i => true), //pawns can move 2 squares?
-			"b": _.map(_.range(8), i => true)
-		};
-		if (!fenflags)
-			return;
-		const flags = fenflags.substr(4); //skip first 4 digits, for castle
-		for (let c of ['w','b'])
-		{
-			for (let i=0; i<8; i++)
-				this.pawnFlags[c][i] = (flags.charAt((c=='w'?0:8)+i) == '1');
-		}
-	}
-
-	aggregateFlags()
-	{
-		return [this.castleFlags, this.pawnFlags];
-	}
-
-	disaggregateFlags(flags)
-	{
-		this.castleFlags = flags[0];
-		this.pawnFlags = flags[1];
-	}
-
-	canTake([x1,y1], [x2,y2])
-	{
-		const color1 = this.getColor(x1,y1);
-		const color2 = this.getColor(x2,y2);
-		// Checkered aren't captured
-		return color1 != color2 && color2 != 'c' && (color1 != 'c' || color2 != this.turn);
-	}
-
-	// Post-processing: apply "checkerization" of standard moves
-	getPotentialMovesFrom([x,y])
-	{
-		let standardMoves = super.getPotentialMovesFrom([x,y]);
-		const lastRank = this.turn == "w" ? 0 : 7;
-		if (this.getPiece(x,y) == V.KING)
-			return standardMoves; //king has to be treated differently (for castles)
-		let moves = [];
-		standardMoves.forEach(m => {
-			if (m.vanish[0].p == V.PAWN)
-			{
-				if (Math.abs(m.end.x-m.start.x)==2 && !this.pawnFlags[this.turn][m.start.y])
-					return; //skip forbidden 2-squares jumps
-				if (this.board[m.end.x][m.end.y] == V.EMPTY && m.vanish.length==2
-					&& this.getColor(m.start.x,m.start.y) == 'c')
-				{
-					return; //checkered pawns cannot take en-passant
-				}
-			}
-			if (m.vanish.length == 1)
-				moves.push(m); //no capture
-			else
-			{
-				// A capture occured (m.vanish.length == 2)
-				m.appear[0].c = "c";
-				moves.push(m);
-				if (m.appear[0].p != m.vanish[1].p //avoid promotions (already treated):
-					&& (m.vanish[0].p != V.PAWN || m.end.x != lastRank))
-				{
-					// Add transformation into captured piece
-					let m2 = JSON.parse(JSON.stringify(m));
-					m2.appear[0].p = m.vanish[1].p;
-					moves.push(m2);
-				}
-			}
-		});
-		return moves;
-	}
-
-	canIplay(side, [x,y])
-	{
-		return (side == this.turn && [side,'c'].includes(this.getColor(x,y)));
-	}
-
-	// Does m2 un-do m1 ? (to disallow undoing checkered moves)
-	oppositeMoves(m1, m2)
-	{
-		return m1.appear.length == 1 && m2.appear.length == 1
-			&& m1.vanish.length == 1 && m2.vanish.length == 1
-			&& m1.start.x == m2.end.x && m1.end.x == m2.start.x
-			&& m1.start.y == m2.end.y && m1.end.y == m2.start.y
-			&& m1.appear[0].c == m2.vanish[0].c && m1.appear[0].p == m2.vanish[0].p
-			&& m1.vanish[0].c == m2.appear[0].c && m1.vanish[0].p == m2.appear[0].p;
-	}
-
-	filterValid(moves)
-	{
-		if (moves.length == 0)
-			return [];
-		const color = this.turn;
-		return moves.filter(m => {
-			const L = this.moves.length;
-			if (L > 0 && this.oppositeMoves(this.moves[L-1], m))
-				return false;
-			this.play(m);
-			const res = !this.underCheck(color);
-			this.undo(m);
-			return res;
-		});
-	}
-
-	isAttackedByPawn([x,y], colors)
-	{
-		for (let c of colors)
-		{
-			const color = (c=="c" ? this.turn : c);
-			let pawnShift = (color=="w" ? 1 : -1);
-			if (x+pawnShift>=0 && x+pawnShift<8)
-			{
-				for (let i of [-1,1])
-				{
-					if (y+i>=0 && y+i<8 && this.getPiece(x+pawnShift,y+i)==V.PAWN
-						&& this.getColor(x+pawnShift,y+i)==c)
-					{
-						return true;
-					}
-				}
-			}
-		}
-		return false;
-	}
-
-	underCheck(color)
-	{
-		return this.isAttacked(this.kingPos[color], [V.GetOppCol(color),'c']);
-	}
-
-	getCheckSquares(color)
-	{
-		// Artifically change turn, for checkered pawns
-		this.turn = V.GetOppCol(color);
-		const kingAttacked = this.isAttacked(
-			this.kingPos[color], [V.GetOppCol(color),'c']);
-		let res = kingAttacked
-			? [JSON.parse(JSON.stringify(this.kingPos[color]))] //need to duplicate!
-			: [];
-		this.turn = color;
-		return res;
-	}
-
-	updateVariables(move)
-	{
-		super.updateVariables(move);
-		// Does this move turn off a 2-squares pawn flag?
-		const secondRank = [1,6];
-		if (secondRank.includes(move.start.x) && move.vanish[0].p == V.PAWN)
-			this.pawnFlags[move.start.x==6 ? "w" : "b"][move.start.y] = false;
-	}
-
-	checkGameEnd()
-	{
-		const color = this.turn;
-		// Artifically change turn, for checkered pawns
-		this.turn = V.GetOppCol(this.turn);
-		const res = this.isAttacked(this.kingPos[color], [V.GetOppCol(color),'c'])
-			? (color == "w" ? "0-1" : "1-0")
-			: "1/2";
-		this.turn = V.GetOppCol(this.turn);
-		return res;
-	}
-
-	evalPosition()
-	{
-		let evaluation = 0;
-		//Just count material for now, considering checkered neutral (...)
-		for (let i=0; i<V.size.x; i++)
-		{
-			for (let j=0; j<V.size.y; j++)
-			{
-				if (this.board[i][j] != V.EMPTY)
-				{
-					const sqColor = this.getColor(i,j);
-					const sign = sqColor == "w" ? 1 : (sqColor=="b" ? -1 : 0);
-					evaluation += sign * V.VALUES[this.getPiece(i,j)];
-				}
-			}
-		}
-		return evaluation;
-	}
-
-	static GenRandInitFen()
-	{
-		const randFen = ChessRules.GenRandInitFen();
-		// Add 16 pawns flags:
-		return randFen.replace(" w 1111", " w 11111111111111111111");
-	}
-
-	getFlagsFen()
-	{
-		let fen = super.getFlagsFen();
-		// Add pawns flags
-		for (let c of ['w','b'])
-		{
-			for (let i=0; i<8; i++)
-				fen += this.pawnFlags[c][i] ? '1' : '0';
-		}
-		return fen;
-	}
-
-	getNotation(move)
-	{
-		if (move.appear.length == 2)
-		{
-			// Castle
-			if (move.end.y < move.start.y)
-				return "0-0-0";
-			else
-				return "0-0";
-		}
-
-		// Translate final square
-		const finalSquare = V.CoordsToSquare(move.end);
-
-		const piece = this.getPiece(move.start.x, move.start.y);
-		if (piece == V.PAWN)
-		{
-			// Pawn move
-			let notation = "";
-			if (move.vanish.length > 1)
-			{
-				// Capture
-				const startColumn = V.CoordToColumn(move.start.y);
-				notation = startColumn + "x" + finalSquare +
-					"=" + move.appear[0].p.toUpperCase();
-			}
-			else //no capture
-			{
-				notation = finalSquare;
-				if (move.appear.length > 0 && piece != move.appear[0].p) //promotion
-					notation += "=" + move.appear[0].p.toUpperCase();
-			}
-			return notation;
-		}
-
-		else
-		{
-			// Piece movement
-			return piece.toUpperCase() + (move.vanish.length > 1 ? "x" : "") + finalSquare
-				+ (move.vanish.length > 1 ? "=" + move.appear[0].p.toUpperCase() : "");
-		}
-	}
-}