From: Benjamin Auder Date: Wed, 26 Jul 2023 10:23:13 +0000 (+0200) Subject: Copycat almost ok - some checks undetected X-Git-Url: https://git.auder.net/variants/img/pieces/%7B%7B%20asset%28%27mixstore/images/index.css?a=commitdiff_plain;h=296f846a620c361b3fe4e61f6bb369adc361d312;p=xogo.git Copycat almost ok - some checks undetected --- diff --git a/base_rules.js b/base_rules.js index c0d9b60..9cedfd0 100644 --- a/base_rules.js +++ b/base_rules.js @@ -1838,6 +1838,8 @@ export default class ChessRules { } } + // TODO here: should/could use getPotentialMovesFrom ?! (not sure) + // --> would be useful for variants like Copycat. // Search for enemy (or not) pieces attacking [x, y] findCapturesOn([x, y], o, allowed) { if (!o.byCol) diff --git a/variants.js b/variants.js index 182fb8f..dad687f 100644 --- a/variants.js +++ b/variants.js @@ -33,7 +33,7 @@ const variants = [ {name: 'Circular', desc: 'Run forward'}, {name: 'Clorange', desc: 'A Clockwork Orange', disp: 'Clockwork Orange'}, {name: 'Convert', desc: 'Convert enemy pieces'}, -// {name: 'Copycat', desc: 'Borrow powers'}, + {name: 'Copycat', desc: 'Borrow powers'}, // {name: 'Coregal', desc: 'Two royal pieces'}, // {name: 'Coronation', desc: 'Long live the Queen'}, {name: 'Crazyhouse', desc: 'Captures reborn'}, diff --git a/variants/Copycat/class.js b/variants/Copycat/class.js new file mode 100644 index 0000000..2c417c5 --- /dev/null +++ b/variants/Copycat/class.js @@ -0,0 +1,63 @@ +import ChessRules from "/base_rules.js"; + +export default class CopycatRules extends ChessRules { + + static get Options() { + return { + select: C.Options.select, + input: C.Options.input, + styles: ["atomic", "capture", "crazyhouse", "cylinder", "dark", "zen"] + }; + } + + getPotentialMovesFrom([x, y], color) { + let moves = super.getPotentialMovesFrom([x, y], color); + // Expand potential moves if attacking friendly pieces. + const piece = this.getPiece(x,y); + if (['p', 'k'].includes(piece)) + return moves; + let movements = {}; + const steps = this.pieces()[piece].both[0].steps; + steps.forEach(s => { + let [i, j] = [x + s[0], y + s[1]]; + while ( + this.onBoard(i, j) && + this.board[i][j] == "" && + piece != 'n' + ) { + i += s[0]; + j += s[1]; + } + if (this.onBoard(i, j) && this.getColor(i, j) == this.turn) { + const attacked = this.getPiece(i, j); + if (['r', 'b', 'n'].includes(attacked)) { + if (!movements[attacked]) + movements[attacked] = true; + } + else if (attacked == 'q') { + if (!movements['r']) + movements['r'] = true; + if (!movements['b']) + movements['b'] = true; + } + } + }); + Object.keys(movements).forEach(type => { + if ( + (piece != 'q' && type != piece) || + (piece == 'q' && type == 'n') + ) { + Array.prototype.push.apply(moves, + super.getPotentialMovesOf(type, [x, y])); + } + }); + return moves; + } + + underAttack([x, y], oppCols) { + if (super.underAttack([x, y], oppCols) + return true; + //TODO + } + +}; diff --git a/variants/Copycat/rules.html b/variants/Copycat/rules.html new file mode 100644 index 0000000..43d1f25 --- /dev/null +++ b/variants/Copycat/rules.html @@ -0,0 +1,8 @@ +

+ If a piece (rook, knight, bishop or queen) attacks another friendly one, + it borrows powers from it and can move (and capture) like it. +

+ +

Students from the UCF Chess Club (2020).

+ +

See also their Discord server :-)

diff --git a/variants/Copycat/style.css b/variants/Copycat/style.css new file mode 100644 index 0000000..a3550bc --- /dev/null +++ b/variants/Copycat/style.css @@ -0,0 +1 @@ +@import url("/base_pieces.css");