Commit | Line | Data |
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f6dbe8e3 | 1 | class UpsidedownRules extends ChessRules |
388e4c40 BA |
2 | { |
3 | static HasFlags() { return false; } | |
4 | ||
f6dbe8e3 BA |
5 | // Forbid two knights moves in a row at moves 1 and 2 |
6 | getPotentialKnightMoves(sq) | |
7 | { | |
8 | // But this will also affect FEN for problems, and... | |
9 | // does it really solve the problem ? | |
10 | //if (this.moves. ...) | |
11 | } | |
12 | ||
388e4c40 BA |
13 | getPotentialKingMoves(sq) |
14 | { | |
15 | // No castle | |
16 | return this.getSlideNJumpMoves(sq, | |
17 | V.steps[V.ROOK].concat(V.steps[V.BISHOP]), "oneStep"); | |
18 | } | |
19 | ||
20 | static GenRandInitFen() | |
21 | { | |
22 | let pieces = { "w": new Array(8), "b": new Array(8) }; | |
23 | for (let c of ["w","b"]) | |
24 | { | |
25 | let positions = _.range(8); | |
26 | ||
27 | let randIndex = 2 * _.random(3); | |
28 | let bishop1Pos = positions[randIndex]; | |
29 | let randIndex_tmp = 2 * _.random(3) + 1; | |
30 | let bishop2Pos = positions[randIndex_tmp]; | |
31 | positions.splice(Math.max(randIndex,randIndex_tmp), 1); | |
32 | positions.splice(Math.min(randIndex,randIndex_tmp), 1); | |
33 | ||
34 | randIndex = _.random(5); | |
35 | let knight1Pos = positions[randIndex]; | |
36 | positions.splice(randIndex, 1); | |
37 | randIndex = _.random(4); | |
38 | let knight2Pos = positions[randIndex]; | |
39 | positions.splice(randIndex, 1); | |
40 | ||
41 | randIndex = _.random(3); | |
42 | let queenPos = positions[randIndex]; | |
43 | positions.splice(randIndex, 1); | |
44 | ||
45 | let rook1Pos = positions[0]; | |
46 | let kingPos = positions[1]; | |
47 | let rook2Pos = positions[2]; | |
48 | ||
49 | pieces[c][rook1Pos] = 'r'; | |
50 | pieces[c][knight1Pos] = 'n'; | |
51 | pieces[c][bishop1Pos] = 'b'; | |
52 | pieces[c][queenPos] = 'q'; | |
53 | pieces[c][kingPos] = 'k'; | |
54 | pieces[c][bishop2Pos] = 'b'; | |
55 | pieces[c][knight2Pos] = 'n'; | |
56 | pieces[c][rook2Pos] = 'r'; | |
57 | } | |
f6dbe8e3 | 58 | return pieces["w"].join("").toUpperCase() + |
388e4c40 | 59 | "/PPPPPPPP/8/8/8/8/pppppppp/" + |
f6dbe8e3 | 60 | pieces["b"].join("") + |
388e4c40 BA |
61 | " w 1111 -"; //add turn + flags + enpassant |
62 | } | |
63 | } | |
64 | ||
65 | const VariantRules = UpsidedownRules; |