From: Benjamin Auder <benjamin.auder@somewhere>
Date: Wed, 12 Dec 2018 10:40:57 +0000 (+0100)
Subject: Drop Half chess: does not seem very interesting after all
X-Git-Url: https://git.auder.net/img/js/doc/screen_pairings_restore.png?a=commitdiff_plain;h=ab2bc577ec2d70c2833e482af3bb27f4f94c3f99;p=vchess.git

Drop Half chess: does not seem very interesting after all
---

diff --git a/public/javascripts/variants/Half.js b/public/javascripts/variants/Half.js
deleted file mode 100644
index 6c6c7ebb..00000000
--- a/public/javascripts/variants/Half.js
+++ /dev/null
@@ -1,132 +0,0 @@
-// Standard rules on a 4x8 board with no pawns
-class HalfRules extends ChessRules
-{
-	initVariables(fen)
-	{
-		this.kingPos = {'w':[-1,-1], 'b':[-1,-1]};
-		const fenParts = fen.split(" ");
-		const position = fenParts[0].split("/");
-		for (let i=0; i<position.length; i++)
-		{
-			let k = 0;
-			for (let j=0; j<position[i].length; j++)
-			{
-				switch (position[i].charAt(j))
-				{
-					case 'k':
-						this.kingPos['b'] = [i,k];
-						break;
-					case 'K':
-						this.kingPos['w'] = [i,k];
-						break;
-					default:
-						let num = parseInt(position[i].charAt(j));
-						if (!isNaN(num))
-							k += (num-1);
-				}
-				k++;
-			}
-		}
-		// No pawns so no ep., but otherwise we must redefine play()
-		this.epSquares = [];
-	}
-
-	setFlags(fen)
-	{
-		// No castling, hence no flags; but flags defined for compatibility
-		this.castleFlags = { "w":[false,false], "b":[false,false] };
-	}
-
-	static get size() { return [4,8]; }
-
-	getPotentialKingMoves(sq)
-	{
-		const V = VariantRules;
-		// No castling
-		return this.getSlideNJumpMoves(sq,
-			V.steps[V.ROOK].concat(V.steps[V.BISHOP]), "oneStep");
-	}
-
-	isAttacked(sq, colors)
-	{
-		return (this.isAttackedByRook(sq, colors)
-			|| this.isAttackedByKnight(sq, colors)
-			|| this.isAttackedByBishop(sq, colors)
-			|| this.isAttackedByQueen(sq, colors)
-			|| this.isAttackedByKing(sq, colors));
-	}
-
-	updateVariables(move)
-	{
-		// Just update king position
-		const piece = this.getPiece(move.start.x,move.start.y);
-		const c = this.getColor(move.start.x,move.start.y);
-		if (piece == VariantRules.KING)
-		{
-			this.kingPos[c][0] = move.appear[0].x;
-			this.kingPos[c][1] = move.appear[0].y;
-		}
-	}
-
-	static GenRandInitFen()
-	{
-		let minorPieces = { "w": new Array(4), "b": new Array(4) };
-		let majorPieces = { "w": new Array(4), "b": new Array(4) };
-		for (let c of ["w","b"])
-		{
-			// Minor pieces first (on 2nd rank)
-			let positions = _.range(4);
-
-			// Get random squares for bishops
-			let randIndex = 2 * _.random(1);
-			let bishop1Pos = positions[randIndex];
-			let randIndex_tmp = 2 * _.random(1) + 1;
-			let bishop2Pos = positions[randIndex_tmp];
-			positions.splice(Math.max(randIndex,randIndex_tmp), 1);
-			positions.splice(Math.min(randIndex,randIndex_tmp), 1);
-
-			// Get random squares for knights
-			randIndex = _.random(1);
-			let knight1Pos = positions[randIndex];
-			positions.splice(randIndex, 1);
-			let knight2Pos = positions[0];
-
-			minorPieces[c][bishop1Pos] = 'b';
-			minorPieces[c][bishop2Pos] = 'b';
-			minorPieces[c][knight1Pos] = 'n';
-			minorPieces[c][knight2Pos] = 'n';
-
-			// Major pieces then (on 1st rank)
-			positions = _.range(4);
-
-			// Get random square for queen
-			randIndex = _.random(3);
-			let queenPos = positions[randIndex];
-			positions.splice(randIndex, 1);
-
-			// Random square for king (no castle)
-			randIndex = _.random(2);
-			let kingPos = positions[randIndex];
-			positions.splice(randIndex, 1);
-
-			// Rooks and king positions:
-			let rook1Pos = positions[0];
-			let rook2Pos = positions[1];
-
-			majorPieces[c][rook1Pos] = 'r';
-			majorPieces[c][rook2Pos] = 'r';
-			majorPieces[c][kingPos] = 'k';
-			majorPieces[c][queenPos] = 'q';
-		}
-		let fen = "";
-		for (let i=0; i<4; i++)
-		{
-			fen += majorPieces["b"][i] + minorPieces["b"][i] + "4" +
-				minorPieces["w"][i].toUpperCase() + majorPieces["w"][i].toUpperCase();
-			if (i < 3)
-				fen += "/";
-		}
-		fen += " 0000"; //TODO: flags?!
-		return fen;
-	}
-}
diff --git a/variants.js b/variants.js
index 5623334e..2a20ffd9 100644
--- a/variants.js
+++ b/variants.js
@@ -13,5 +13,4 @@ module.exports = [
 	{ "name": "Switching", "description": "Exchange pieces positions" },
 	{ "name": "Extinction", "description": "Capture all of a kind" },
 	{ "name": "Ultima", "description": "Non-standard captures" },
-	{ "name": "Half", "description": "Small board" },
 ];
diff --git a/views/rules/Half.pug b/views/rules/Half.pug
deleted file mode 100644
index 91b4a4e2..00000000
--- a/views/rules/Half.pug
+++ /dev/null
@@ -1,24 +0,0 @@
-p.boxed
-	| 4x8 board with no pawns. Orthodox rules.
-
-figure.diagram-container
-	.diagram
-		| fen:rn4NR/kb4BK/qb4BQ/rn4NR:
-	figcaption Initial position (non-random)
-
-h3 Specifications
-
-ul
-	li Chessboard: 4x8 (see diagram).
-	li Material: no pawns.
-	li Non-capturing moves: standard.
-	li Special moves: none.
-	li Captures: standard.
-	li End of game: standard.
-
-h3 Credits
-
-p
-	| This variant is shortly described on 
-	a(href="https://www.chessvariants.com/small.dir/halfchess.html") chessvariants.com
-	| .