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801e2870 BA |
1 | import { ChessRules, Move, PiPo } from "@/base_rules"; |
2 | import { ArrayFun } from "@/utils/array"; | |
3 | import { randInt } from "@/utils/alea"; | |
4 | ||
5 | export class ColorboundRules extends ChessRules { | |
7e8a7ea1 | 6 | |
801e2870 BA |
7 | static get PawnSpecs() { |
8 | return Object.assign( | |
9 | {}, | |
10 | ChessRules.PawnSpecs, | |
db952d8e BA |
11 | { |
12 | promotions: | |
13 | ChessRules.PawnSpecs.promotions.concat( | |
14 | [V.C_ROOK, V.C_KNIGHT, V.C_BISHOP, V.C_QUEEN]) | |
15 | } | |
801e2870 BA |
16 | ); |
17 | } | |
18 | ||
19 | getPpath(b) { | |
20 | if ([V.C_ROOK, V.C_KNIGHT, V.C_BISHOP, V.C_QUEEN].includes(b[1])) | |
21 | return "Colorbound/" + b; | |
22 | return b; | |
23 | } | |
24 | ||
25 | static GenRandInitFen(randomness) { | |
26 | if (randomness == 0) | |
27 | return "dhaskahd/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w 0 ahah -"; | |
28 | ||
29 | // Mapping white --> black (at least at start): | |
30 | const piecesMap = { | |
31 | 'r': 'd', | |
32 | 'n': 'h', | |
33 | 'b': 'a', | |
34 | 'q': 's', | |
35 | 'k': 'k' | |
36 | }; | |
37 | ||
f52671e5 | 38 | const baseFen = ChessRules.GenRandInitFen(randomness); |
801e2870 | 39 | return ( |
f52671e5 BA |
40 | baseFen.substr(0, 8).split('').map(p => piecesMap[p]).join('') + |
41 | baseFen.substr(8) | |
801e2870 BA |
42 | ); |
43 | } | |
44 | ||
45 | static get C_ROOK() { | |
46 | return 'd'; | |
47 | } | |
48 | static get C_KNIGHT() { | |
49 | return 'h'; | |
50 | } | |
51 | static get C_BISHOP() { | |
52 | return 'a'; | |
53 | } | |
54 | static get C_QUEEN() { | |
55 | return 's'; | |
56 | } | |
57 | ||
58 | static get PIECES() { | |
59 | return ( | |
db952d8e | 60 | ChessRules.PIECES.concat([V.C_ROOK, V.C_KNIGHT, V.C_BISHOP, V.C_QUEEN]) |
801e2870 BA |
61 | ); |
62 | } | |
63 | ||
64 | getPotentialMovesFrom([x, y]) { | |
65 | switch (this.getPiece(x, y)) { | |
b90120e0 BA |
66 | case V.C_ROOK: return this.getPotentialC_rookMoves([x, y]); |
67 | case V.C_KNIGHT: return this.getPotentialC_knightMoves([x, y]); | |
68 | case V.C_BISHOP: return this.getPotentialC_bishopMoves([x, y]); | |
69 | case V.C_QUEEN: return this.getPotentialC_queenMoves([x, y]); | |
70 | default: return super.getPotentialMovesFrom([x, y]); | |
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71 | } |
72 | return []; | |
73 | } | |
74 | ||
75 | static get steps() { | |
76 | return Object.assign( | |
77 | {}, | |
78 | ChessRules.steps, | |
79 | { | |
80 | // Dabbabah | |
81 | 'd': [ | |
82 | [-2, 0], | |
83 | [0, -2], | |
84 | [2, 0], | |
85 | [0, 2] | |
86 | ], | |
87 | // Alfil | |
88 | 'a': [ | |
89 | [2, 2], | |
90 | [2, -2], | |
91 | [-2, 2], | |
92 | [-2, -2] | |
93 | ], | |
94 | // Ferz | |
95 | 'f': [ | |
96 | [1, 1], | |
97 | [1, -1], | |
98 | [-1, 1], | |
99 | [-1, -1] | |
100 | ] | |
101 | } | |
102 | ); | |
103 | } | |
104 | ||
105 | getPotentialC_rookMoves(sq) { | |
106 | return ( | |
107 | this.getSlideNJumpMoves(sq, V.steps[V.BISHOP]).concat( | |
108 | this.getSlideNJumpMoves(sq, V.steps['d'], "oneStep")) | |
109 | ); | |
110 | } | |
111 | ||
112 | getPotentialC_knightMoves(sq) { | |
113 | return ( | |
114 | this.getSlideNJumpMoves(sq, V.steps['a'], "oneStep").concat( | |
115 | this.getSlideNJumpMoves(sq, V.steps[V.ROOK], "oneStep")) | |
116 | ); | |
117 | } | |
118 | ||
119 | getPotentialC_bishopMoves(sq) { | |
120 | return ( | |
121 | this.getSlideNJumpMoves(sq, V.steps['d'], "oneStep").concat( | |
122 | this.getSlideNJumpMoves(sq, V.steps['a'], "oneStep")).concat( | |
123 | this.getSlideNJumpMoves(sq, V.steps[V.BISHOP], "oneStep")) | |
124 | ); | |
125 | } | |
126 | ||
127 | getPotentialC_queenMoves(sq) { | |
128 | return ( | |
129 | this.getSlideNJumpMoves(sq, V.steps[V.BISHOP]).concat( | |
130 | this.getSlideNJumpMoves(sq, V.steps[V.KNIGHT], "oneStep")) | |
131 | ); | |
132 | } | |
133 | ||
801e2870 | 134 | getCastleMoves([x, y]) { |
7e8a7ea1 | 135 | const color = this.getColor(x, y); |
801e2870 BA |
136 | const finalSquares = [ |
137 | // Black castle long in an unusual way: | |
7e8a7ea1 | 138 | (color == 'w' ? [2, 3] : [1, 2]), |
801e2870 BA |
139 | [V.size.y - 2, V.size.y - 3] |
140 | ]; | |
7e8a7ea1 | 141 | return super.getCastleMoves([x, y], finalSquares); |
801e2870 BA |
142 | } |
143 | ||
144 | isAttacked(sq, color) { | |
145 | return ( | |
146 | super.isAttacked(sq, color) || | |
147 | this.isAttackedByC_rook(sq, color) || | |
148 | this.isAttackedByC_knight(sq, color) || | |
149 | this.isAttackedByC_bishop(sq, color) || | |
150 | this.isAttackedByC_queen(sq, color) | |
151 | ); | |
152 | } | |
153 | ||
154 | isAttackedByC_rook(sq, color) { | |
155 | return ( | |
156 | this.isAttackedBySlideNJump(sq, color, V.C_ROOK, V.steps[V.BISHOP]) || | |
157 | this.isAttackedBySlideNJump( | |
158 | sq, color, V.C_ROOK, V.steps['d'], "oneStep") | |
159 | ); | |
160 | } | |
161 | ||
162 | isAttackedByC_knight(sq, color) { | |
163 | return ( | |
164 | this.isAttackedBySlideNJump( | |
165 | sq, color, V.C_KNIGHT, V.steps[V.ROOK], "oneStep") || | |
166 | this.isAttackedBySlideNJump( | |
167 | sq, color, V.C_KNIGHT, V.steps['a'], "oneStep") | |
168 | ); | |
169 | } | |
170 | ||
171 | isAttackedByC_bishop(sq, color) { | |
172 | return ( | |
173 | this.isAttackedBySlideNJump( | |
174 | sq, color, V.C_BISHOP, V.steps['d'], "oneStep") || | |
175 | this.isAttackedBySlideNJump( | |
176 | sq, color, V.C_BISHOP, V.steps['a'], "oneStep") || | |
177 | this.isAttackedBySlideNJump( | |
178 | sq, color, V.C_BISHOP, V.steps['f'], "oneStep") | |
179 | ); | |
180 | } | |
181 | ||
182 | isAttackedByC_queen(sq, color) { | |
183 | return ( | |
184 | this.isAttackedBySlideNJump(sq, color, V.C_QUEEN, V.steps[V.BISHOP]) || | |
185 | this.isAttackedBySlideNJump( | |
81a0b2a9 | 186 | sq, color, V.C_QUEEN, V.steps[V.KNIGHT], "oneStep") |
801e2870 BA |
187 | ); |
188 | } | |
189 | ||
190 | static get VALUES() { | |
191 | return Object.assign( | |
192 | {}, | |
193 | ChessRules.VALUES, | |
194 | { | |
195 | d: 4, | |
196 | h: 3, | |
197 | a: 5, | |
198 | s: 6 | |
199 | } | |
200 | ); | |
201 | } | |
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202 | |
203 | static get SEARCH_DEPTH() { | |
204 | return 2; | |
205 | } | |
7e8a7ea1 | 206 | |
801e2870 | 207 | }; |