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[xogo.git] / variants / Dice / class.js
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1import ChessRules from "/base_rules.js";
2import {Random} from "/utils/alea.js";
3
4export default class DiceRules extends ChessRules {
5
6 static get Options() {
7 let res = C.Options;
8 res.select["defaut"] = 2;
9 return {
10 select: res.select,
11 input: [
12 {
13 label: "Biased alea",
14 variable: "biased",
15 type: "checkbox",
16 defaut: true
17 },
18 {
19 label: "Falling pawn",
20 variable: "pawnfall",
21 type: "checkbox",
22 defaut: false
23 }
24 ],
25 styles: [
26 "atomic",
27 "capture",
28 "crazyhouse",
29 "cylinder",
30 "madrasi",
31 "recycle",
32 "rifle",
33 "zen"
34 ]
35 };
36 }
37
38 getPartFen(o) {
39 let toplay = '';
40 if (o.init) {
41 let canMove = (this.options["biased"]
42 ? Array(8).fill('p').concat(Array(2).fill('n'))
43 : ['p', 'n']);
44 toplay = canMove[Random.randInt(canMove.length)];
45 }
46 return Object.assign(
47 { toplay: (o.init ? toplay : this.getRandomPiece(this.turn)) },
48 super.getPartFen(o)
49 );
50 }
51
52 constructor(o) {
53 super(o);
54 this.afterPlay = (move_s, newTurn, ops) => {
55 // Movestack contains only one move:
56 move_s[0].toplay = this.getRandomPiece(this.turn);
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57 this.toplay = move_s[0].toplay;
58 this.displayMessage(move_s[0].toplay,
59 C.GetOppTurn(move_s[0].appear[0].c));
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60 o.afterPlay(move_s, newTurn, ops);
61 };
62 }
63
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64 static get PieceToUnicode() {
65 return {
66 'K': "♔",
67 'Q': "♕",
68 'R': "♖",
69 'B': "♗",
70 'N': "♘",
71 'P': "♙",
72 'k': "♚",
73 'q': "♛",
74 'r': "♜",
75 'b': "♝",
76 'n': "♞",
77 'p': "♟"
78 };
79 }
80
81 displayMessage(piece, color) {
82 if (color == 'w')
83 piece = piece.toUpperCase();
84 super.displayMessage(this.message,
85 '<span>to play:</span> ' +
86 '<span class="symb">' + V.PieceToUnicode[piece] + '</span>'
87 );
88 }
89
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90 setOtherVariables(fenParsed) {
91 super.setOtherVariables(fenParsed);
92 this.toplay = fenParsed.toplay;
93 this.message = document.createElement("div");
94 C.AddClass_es(this.message, "piece-text");
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95 let container = document.getElementById(this.containerId);
96 container.appendChild(this.message);
04d93b7b 97 this.displayMessage(this.toplay, fenParsed.turn);
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98 }
99
100 getRandomPiece(color) {
101 // Find pieces which can move and roll a (biased) dice
102 let canMove = [];
103 for (let i=0; i<8; i++) {
104 for (let j=0; j<8; j++) {
105 if (this.board[i][j] != "" && this.getColor(i, j) == color) {
106 const piece = this.getPiece(i, j);
107 if (this.findDestSquares([i, j], {one: true}))
108 canMove.push(piece);
109 }
110 }
111 }
112 if (!this.options["biased"])
113 canMove = [...new Set(canMove)];
114 return canMove[Random.randInt(canMove.length)];
115 }
116
117 postProcessPotentialMoves(moves) {
118 return super.postProcessPotentialMoves(moves).filter(m => {
119 return (
120 (m.appear.length >= 1 && m.appear[0].p == this.toplay) ||
121 (m.vanish.length >= 1 && m.vanish[0].p == this.toplay)
122 );
123 });
124 }
125
126 filterValid(moves) {
127 return moves;
128 }
129
130 playReceivedMove(moves, callback) {
131 this.toplay = moves[0].toplay; //only one move
04d93b7b 132 this.displayMessage(this.toplay, C.GetOppTurn(moves[0].appear[0].c));
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133 super.playReceivedMove(moves, callback);
134 }
135
136};