| 1 | //https://www.chessvariants.com/large.dir/freeling.html |
| 2 | class GrandRules extends ChessRules |
| 3 | { |
| 4 | static getPpath(b) |
| 5 | { |
| 6 | const V = VariantRules; |
| 7 | return ([V.CAMEL,V.WILDEBEEST].includes(b[1]) ? "Grand/" : "") + b; |
| 8 | } |
| 9 | |
| 10 | static get MARSHALL() { return 'm'; } //rook+knight |
| 11 | static get CARDINAL() { return 'c'; } //bishop+knight |
| 12 | |
| 13 | // ------> pas les règles exactes, on démarre en 2 avec 1,2 ou 3 cases + enPassant comme Wildebeest |
| 14 | // TODO: IN epSquares (return array), not return singleton. Easy. Adapt |
| 15 | // just here for now... |
| 16 | getEpSquare(move) |
| 17 | { |
| 18 | const [sx,sy,ex] = [move.start.x,move.start.y,move.end.x]; |
| 19 | if (this.getPiece(sx,sy) == VariantRules.PAWN && Math.abs(sx - ex) == 2) |
| 20 | { |
| 21 | return { |
| 22 | x: (sx + ex)/2, |
| 23 | y: sy |
| 24 | }; |
| 25 | } |
| 26 | return undefined; //default |
| 27 | } |
| 28 | |
| 29 | getPotentialMovesFrom([x,y]) |
| 30 | { |
| 31 | switch (this.getPiece(x,y)) |
| 32 | { |
| 33 | case VariantRules.MARSHALL: |
| 34 | return this.getPotentialMarshallMoves([x,y]); |
| 35 | case VariantRules.CARDINAL: |
| 36 | return this.getPotentialCardinalMoves([x,y]); |
| 37 | default: |
| 38 | return super.getPotentialMovesFrom([x,y]) |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | // TODO: quite many changes! Especially promotions, only to friendly pieces already captured. ==> keep track of captured material in initVariables()...... |
| 43 | getPotentialPawnMoves([x,y]) |
| 44 | { |
| 45 | } |
| 46 | |
| 47 | getPotentialMarshallMoves(sq) |
| 48 | { |
| 49 | const V = VariantRules; |
| 50 | return this.getSlideNJumpMoves(sq, V.steps[V.ROOK]).concat( |
| 51 | this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")); |
| 52 | } |
| 53 | |
| 54 | getPotentialCardinalMoves(sq) |
| 55 | { |
| 56 | const V = VariantRules; |
| 57 | return this.getSlideNJumpMoves(sq, V.steps[V.BISHOP]).concat( |
| 58 | this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")); |
| 59 | } |
| 60 | |
| 61 | isAttacked(sq, colors) |
| 62 | { |
| 63 | return (super.isAttacked(sq, colors) |
| 64 | || this.isAttackedByMarshall(sq, colors) |
| 65 | || this.isAttackedByCardinal(sq, colors); |
| 66 | } |
| 67 | |
| 68 | isAttackedByMarshall(sq, colors) |
| 69 | { |
| 70 | const V = VariantRules; |
| 71 | return this.isAttackedBySlideNJump(sq, colors, V.MARSHALL, V.steps[V.ROOK]) |
| 72 | || this.isAttackedBySlideNJump(sq, colors, V.MARSHALL, V.steps[V.KNIGHT], "oneStep"); |
| 73 | } |
| 74 | |
| 75 | isAttackedByCardinal(sq, colors) |
| 76 | { |
| 77 | const V = VariantRules; |
| 78 | return this.isAttackedBySlideNJump(sq, colors, V.CARDINAL, V.steps[V.BISHOP]) |
| 79 | || this.isAttackedBySlideNJump(sq, colors, V.CARDINAL, V.steps[V.KNIGHT], "oneStep"); |
| 80 | } |
| 81 | |
| 82 | static get VALUES() { |
| 83 | return Object.assign( |
| 84 | ChessRules.VALUES, |
| 85 | {'c': 5, 'm': 7} //experimental |
| 86 | ); |
| 87 | } |
| 88 | |
| 89 | // TODO: |
| 90 | static GenRandInitFen() |
| 91 | { |
| 92 | } |
| 93 | } |