Commit | Line | Data |
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204e289b | 1 | class AntikingRules extends ChessRules |
7d6b0773 BA |
2 | { |
3 | // Path to pieces | |
4 | static getPpath(b) | |
5 | { | |
6 | return b[1]=='a' ? "Antiking/"+b : b; | |
7 | } | |
8 | ||
9 | static get ANTIKING() { return 'a'; } | |
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10 | |
11 | initVariables(fen) | |
12 | { | |
13 | super.initVariables(fen); | |
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14 | this.antikingPos = {'w':[-1,-1], 'b':[-1,-1]}; |
15 | const position = fen.split(" ")[0].split("/"); | |
16 | for (let i=0; i<position.length; i++) | |
17 | { | |
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18 | let k = 0; |
19 | for (let j=0; j<position[i].length; j++) | |
204e289b BA |
20 | { |
21 | switch (position[i].charAt(j)) | |
22 | { | |
23 | case 'a': | |
6037f1d8 | 24 | this.antikingPos['b'] = [i,k]; |
204e289b BA |
25 | break; |
26 | case 'A': | |
6037f1d8 | 27 | this.antikingPos['w'] = [i,k]; |
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28 | break; |
29 | default: | |
30 | let num = parseInt(position[i].charAt(j)); | |
31 | if (!isNaN(num)) | |
6037f1d8 | 32 | k += (num-1); |
204e289b | 33 | } |
6037f1d8 | 34 | k++; |
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35 | } |
36 | } | |
46302e64 | 37 | } |
7d6b0773 | 38 | |
204e289b | 39 | canTake([x1,y1], [x2,y2]) |
7d6b0773 | 40 | { |
204e289b BA |
41 | const piece1 = this.getPiece(x1,y1); |
42 | const piece2 = this.getPiece(x2,y2); | |
43 | const color1 = this.getColor(x1,y1); | |
44 | const color2 = this.getColor(x2,y2); | |
45 | return !["a","A"].includes(piece2) && | |
46 | ((piece1 != "a" && color1 != color2) || (piece1 == "a" && color1 == color2)); | |
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47 | } |
48 | ||
49 | getPotentialMovesFrom([x,y]) | |
50 | { | |
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51 | switch (this.getPiece(x,y)) |
52 | { | |
53 | case VariantRules.ANTIKING: | |
204e289b | 54 | return this.getPotentialAntikingMoves([x,y]); |
7d6b0773 | 55 | default: |
204e289b | 56 | return super.getPotentialMovesFrom([x,y]); |
7d6b0773 BA |
57 | } |
58 | } | |
59 | ||
204e289b | 60 | getPotentialAntikingMoves(sq) |
7d6b0773 | 61 | { |
204e289b | 62 | return this.getSlideNJumpMoves(sq, VariantRules.steps[VariantRules.QUEEN], "oneStep"); |
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63 | } |
64 | ||
46302e64 | 65 | isAttacked(sq, colors) |
7d6b0773 | 66 | { |
46302e64 | 67 | return (super.isAttacked(sq, colors) || this.isAttackedByAntiking(sq, colors)); |
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68 | } |
69 | ||
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70 | isAttackedByKing([x,y], colors) |
71 | { | |
72 | if (this.getPiece(x,y) == VariantRules.ANTIKING) | |
73 | return false; //antiking is not attacked by king | |
74 | return this.isAttackedBySlideNJump([x,y], colors, | |
75 | VariantRules.KING, VariantRules.steps[VariantRules.QUEEN], "oneStep"); | |
76 | } | |
77 | ||
204e289b | 78 | isAttackedByAntiking([x,y], colors) |
7d6b0773 | 79 | { |
204e289b BA |
80 | if (this.getPiece(x,y) == VariantRules.KING) |
81 | return false; //king is not attacked by antiking | |
6037f1d8 | 82 | return this.isAttackedBySlideNJump([x,y], colors, |
204e289b | 83 | VariantRules.ANTIKING, VariantRules.steps[VariantRules.QUEEN], "oneStep"); |
7d6b0773 BA |
84 | } |
85 | ||
46302e64 | 86 | underCheck(move) |
7d6b0773 | 87 | { |
46302e64 | 88 | const c = this.turn; |
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89 | const oppCol = this.getOppCol(c); |
90 | this.play(move) | |
91 | let res = this.isAttacked(this.kingPos[c], oppCol) | |
92 | || !this.isAttacked(this.antikingPos[c], oppCol); | |
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93 | this.undo(move); |
94 | return res; | |
95 | } | |
96 | ||
46302e64 | 97 | getCheckSquares(move) |
7d6b0773 | 98 | { |
204e289b | 99 | let res = super.getCheckSquares(move); |
7d6b0773 | 100 | this.play(move); |
46302e64 | 101 | const c = this.turn; |
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102 | if (!this.isAttacked(this.antikingPos[c], this.getOppCol(c))) |
103 | res.push(JSON.parse(JSON.stringify(this.antikingPos[c]))); | |
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104 | this.undo(move); |
105 | return res; | |
106 | } | |
107 | ||
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108 | updateVariables(move) |
109 | { | |
204e289b BA |
110 | super.updateVariables(move); |
111 | const piece = this.getPiece(move.start.x,move.start.y); | |
112 | const c = this.getColor(move.start.x,move.start.y); | |
113 | // Update antiking position | |
114 | if (piece == VariantRules.ANTIKING) | |
115 | { | |
116 | this.antikingPos[c][0] = move.appear[0].x; | |
117 | this.antikingPos[c][1] = move.appear[0].y; | |
118 | } | |
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119 | } |
120 | ||
121 | unupdateVariables(move) | |
122 | { | |
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123 | super.unupdateVariables(move); |
124 | const c = this.getColor(move.start.x,move.start.y); | |
125 | if (this.getPiece(move.start.x,move.start.y) == VariantRules.ANTIKING) | |
126 | this.antikingPos[c] = [move.start.x, move.start.y]; | |
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127 | } |
128 | ||
204e289b | 129 | checkGameEnd() |
7d6b0773 | 130 | { |
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131 | const color = this.turn; |
132 | const oppCol = this.getOppCol(color); | |
133 | if (!this.isAttacked(this.kingPos[color], oppCol) | |
134 | && this.isAttacked(this.antikingPos[color], oppCol)) | |
135 | { | |
7d6b0773 | 136 | return "1/2"; |
204e289b | 137 | } |
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138 | return color == "w" ? "0-1" : "1-0"; |
139 | } | |
140 | ||
46302e64 | 141 | // Pieces values (TODO: use Object.assign() + ChessRules.VALUES ?) |
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142 | static get VALUES() { |
143 | return { | |
144 | 'p': 1, | |
145 | 'r': 5, | |
146 | 'n': 3, | |
147 | 'b': 3, | |
148 | 'q': 9, | |
149 | 'k': 1000, | |
150 | 'a': 1000 | |
151 | }; | |
152 | } | |
153 | ||
154 | static GenRandInitFen() | |
155 | { | |
46302e64 | 156 | let randFen = ChessRules.GenRandInitFen(); |
204e289b BA |
157 | // Black side |
158 | let antikingPos = _.random(7); | |
159 | let ranks23 = "pppppppp/" + (antikingPos>0?antikingPos:"") + "A" + (antikingPos<7?7-antikingPos:""); | |
160 | randFen = randFen.replace("pppppppp/8", ranks23); | |
161 | // White side | |
162 | antikingPos = _.random(7); | |
163 | ranks23 = (antikingPos>0?antikingPos:"") + "a" + (antikingPos<7?7-antikingPos:"") + "/PPPPPPPP"; | |
164 | randFen = randFen.replace("8/PPPPPPPP", ranks23); | |
46302e64 | 165 | return randFen; |
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166 | } |
167 | } |