From 3232aba3419f129c70d5edd9a4ded1fefc146ea0 Mon Sep 17 00:00:00 2001
From: Benjamin Auder <benjamin.auder@somewhere>
Date: Wed, 3 Jan 2024 15:38:58 +0100
Subject: [PATCH] Add Discoduel, draft Dobutsu, some code cleaning

---
 base_rules.js                   |  20 +-
 pieces/Dobutsu/LICENSE.txt      | 395 ++++++++++++++++++++++++++++++++
 pieces/Dobutsu/README.md        |  13 ++
 pieces/Dobutsu/chick.svg        | 139 +++++++++++
 pieces/Dobutsu/elephant.svg     | 176 ++++++++++++++
 pieces/Dobutsu/giraffe.svg      | 186 +++++++++++++++
 pieces/Dobutsu/hen.svg          | 156 +++++++++++++
 pieces/Dobutsu/lion.svg         | 201 ++++++++++++++++
 pieces/Dobutsu/rev_chick.svg    | 139 +++++++++++
 pieces/Dobutsu/rev_elephant.svg | 176 ++++++++++++++
 pieces/Dobutsu/rev_giraffe.svg  | 186 +++++++++++++++
 pieces/Dobutsu/rev_hen.svg      | 156 +++++++++++++
 pieces/Dobutsu/rev_lion.svg     | 201 ++++++++++++++++
 utils/array.js                  |   8 +-
 variants.js                     |   4 +-
 variants/Avalanche/class.js     |   2 +-
 variants/Chaining/class.js      |   4 +-
 variants/Clorange/class.js      |  13 +-
 variants/Convert/class.js       |   4 +-
 variants/Coregal/class.js       |   4 +-
 variants/Discoduel/class.js     |  51 +++++
 variants/Discoduel/rules.html   |   5 +
 variants/Discoduel/style.css    |   1 +
 variants/Dobutsu/class.js       | 100 ++++++++
 variants/Dobutsu/rules.html     |  12 +
 variants/Dobutsu/style.css      |  34 +++
 26 files changed, 2355 insertions(+), 31 deletions(-)
 create mode 100644 pieces/Dobutsu/LICENSE.txt
 create mode 100644 pieces/Dobutsu/README.md
 create mode 100644 pieces/Dobutsu/chick.svg
 create mode 100644 pieces/Dobutsu/elephant.svg
 create mode 100644 pieces/Dobutsu/giraffe.svg
 create mode 100644 pieces/Dobutsu/hen.svg
 create mode 100644 pieces/Dobutsu/lion.svg
 create mode 100644 pieces/Dobutsu/rev_chick.svg
 create mode 100644 pieces/Dobutsu/rev_elephant.svg
 create mode 100644 pieces/Dobutsu/rev_giraffe.svg
 create mode 100644 pieces/Dobutsu/rev_hen.svg
 create mode 100644 pieces/Dobutsu/rev_lion.svg
 create mode 100644 variants/Discoduel/class.js
 create mode 100644 variants/Discoduel/rules.html
 create mode 100644 variants/Discoduel/style.css
 create mode 100644 variants/Dobutsu/class.js
 create mode 100644 variants/Dobutsu/rules.html
 create mode 100644 variants/Dobutsu/style.css

diff --git a/base_rules.js b/base_rules.js
index 0f89cc4..217d055 100644
--- a/base_rules.js
+++ b/base_rules.js
@@ -338,7 +338,7 @@ export default class ChessRules {
 
   getReserveFen(o) {
     if (o.init)
-      return "000000000000";
+      return Array(2 * V.ReserveArray.length).fill('0').join("");
     return (
       ['w', 'b'].map(c => Object.values(this.reserve[c]).join("")).join("")
     );
@@ -416,14 +416,14 @@ export default class ChessRules {
   }
 
   // Some additional variables from FEN (variant dependant)
-  setOtherVariables(fenParsed, pieceArray) {
+  setOtherVariables(fenParsed) {
     // Set flags and enpassant:
     if (this.hasFlags)
       this.setFlags(fenParsed.flags);
     if (this.hasEnpassant)
       this.epSquare = this.getEpSquare(fenParsed.enpassant);
     if (this.hasReserve && !this.isDiagram)
-      this.initReserves(fenParsed.reserve, pieceArray);
+      this.initReserves(fenParsed.reserve);
     if (this.options["crazyhouse"])
       this.initIspawn(fenParsed.ispawn);
     if (this.options["teleport"]) {
@@ -441,14 +441,16 @@ export default class ChessRules {
   }
 
   // ordering as in pieces() p,r,n,b,q,k
-  initReserves(reserveStr, pieceArray) {
-    if (!pieceArray)
-      pieceArray = ['p', 'r', 'n', 'b', 'q', 'k'];
+  static get ReserveArray() {
+    return ['p', 'r', 'n', 'b', 'q', 'k'];
+  }
+
+  initReserves(reserveStr) {
     const counts = reserveStr.split("").map(c => parseInt(c, 36));
-    const L = pieceArray.length;
+    const L = V.ReserveArray.length;
     this.reserve = {
-      w: ArrayFun.toObject(pieceArray, counts.slice(0, L)),
-      b: ArrayFun.toObject(pieceArray, counts.slice(L, 2 * L))
+      w: ArrayFun.toObject(V.ReserveArray, counts.slice(0, L)),
+      b: ArrayFun.toObject(V.ReserveArray, counts.slice(L, 2 * L))
     };
   }
 
diff --git a/pieces/Dobutsu/LICENSE.txt b/pieces/Dobutsu/LICENSE.txt
new file mode 100644
index 0000000..2f244ac
--- /dev/null
+++ b/pieces/Dobutsu/LICENSE.txt
@@ -0,0 +1,395 @@
+Attribution 4.0 International
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diff --git a/pieces/Dobutsu/README.md b/pieces/Dobutsu/README.md
new file mode 100644
index 0000000..73ed708
--- /dev/null
+++ b/pieces/Dobutsu/README.md
@@ -0,0 +1,13 @@
+[Couch Tomato - I presume]
+
+I recreated all of the original [Doubutsu](https://en.wikipedia.org/wiki/D%C5%8Dbutsu_sh%C5%8Dgi) pieces in Inkscape SVG format.
+
+Credits: the original Doubutsu pieces were created by [Madoka Kitato](https://en.wikipedia.org/wiki/Madoka_Kitao).
+
+(also: [screenshot of the gshogi version](https://raw.githubusercontent.com/Ka-hu/shogi-pieces/master/_screenshots/scrot_doubutsu_gshogi.png))
+
+![doubutsu screenshot](https://raw.githubusercontent.com/Ka-hu/shogi-pieces/master/_screenshots/scrot_doubutsu_xboard.png)
+
+## License
+
+Where it's not stated otherwise, my work is lincensed under [CC-BY-4.0](https://choosealicense.com/licenses/cc-by-4.0)
diff --git a/pieces/Dobutsu/chick.svg b/pieces/Dobutsu/chick.svg
new file mode 100644
index 0000000..69358c7
--- /dev/null
+++ b/pieces/Dobutsu/chick.svg
@@ -0,0 +1,139 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0.1 (3bc2e813f5, 2020-09-07)"
+   sodipodi:docname="wp.svg"
+   id="svg4905"
+   version="1.1"
+   height="60"
+   width="60">
+  <metadata
+     id="metadata4911">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs4909" />
+  <sodipodi:namedview
+     inkscape:document-rotation="0"
+     inkscape:current-layer="svg4905"
+     inkscape:window-maximized="1"
+     inkscape:window-y="20"
+     inkscape:window-x="0"
+     inkscape:cy="36.115918"
+     inkscape:cx="41.902375"
+     inkscape:zoom="6.9423186"
+     showgrid="false"
+     id="namedview4907"
+     inkscape:window-height="1060"
+     inkscape:window-width="960"
+     inkscape:pageshadow="2"
+     inkscape:pageopacity="0"
+     guidetolerance="10"
+     gridtolerance="10"
+     objecttolerance="10"
+     borderopacity="1"
+     bordercolor="#666666"
+     pagecolor="#ffffff" />
+  <!--
+Created by Hari Seldon and modified by orangain, licensed under Creative Commons Attribution-Share Alike 3.0 Unported.
+See: https://creativecommons.org/licenses/by-sa/3.0/deed.en
+
+Original file is available at: https://commons.wikimedia.org/wiki/File:Shogi_osho(svg).svg
+-->
+  <filter
+     id="drop-shadow">
+    <feGaussianBlur
+       id="feGaussianBlur4880"
+       stdDeviation="2"
+       result="blur"
+       in="SourceAlpha" />
+    <feOffset
+       id="feOffset4882"
+       dy="2"
+       dx="2"
+       result="offsetBlur" />
+    <feBlend
+       id="feBlend4884"
+       mode="normal"
+       in2="offsetBlur"
+       in="SourceGraphic" />
+  </filter>
+  <g
+     transform="matrix(0.34437547,0,0,0.34437547,-1.9107969,29.84957)"
+     id="g5891">
+    <g
+       transform="matrix(3.7795276,0,0,3.7795276,208.50911,-1088.428)"
+       id="layer1"
+       inkscape:label="Layer 1">
+      <g
+         transform="translate(0.39418863,0.66145971)"
+         id="g6119">
+        <g
+           id="g5971"
+           transform="matrix(0.85211113,0,0,0.85211113,-9.1404396,-13.169231)">
+          <rect
+             ry="2.487885"
+             y="332.36246"
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diff --git a/pieces/Dobutsu/rev_lion.svg b/pieces/Dobutsu/rev_lion.svg
new file mode 100644
index 0000000..33c11d3
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+++ b/pieces/Dobutsu/rev_lion.svg
@@ -0,0 +1,201 @@
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+   width="60">
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diff --git a/utils/array.js b/utils/array.js
index c2cb25f..af8462e 100644
--- a/utils/array.js
+++ b/utils/array.js
@@ -5,8 +5,12 @@ export const ArrayFun = {
     return [...Array(size1)].map(() => Array(size2).fill(initElem));
   },
 
-  range: function(max) {
-    return [...Array(max).keys()];
+  range: function(min, max) {
+    if (!max) {
+      max = min;
+      min = 0;
+    }
+    return [...Array(max - min).keys()].map(k => k + min);
   },
 
   toObject: function(keys, values) {
diff --git a/variants.js b/variants.js
index cad081a..f42033e 100644
--- a/variants.js
+++ b/variants.js
@@ -43,8 +43,8 @@ const variants = [
   {name: 'Dark', desc: 'In the shadow'},
   {name: 'Diamond', desc: 'Rotating board'},
   {name: 'Dice', desc: 'Roll the dice'},
-//  {name: 'Discoduel', desc: 'Enter the disco', disp: 'Disco Duel'},
-//  {name: 'Dobutsu', desc: "Let's catch the Lion!"},
+  {name: 'Discoduel', desc: 'Enter the disco', disp: 'Disco Duel'},
+  {name: 'Dobutsu', desc: "Let's catch the Lion!"},
 //  {name: 'Doublearmy', desc: '64 pieces on the board', disp: 'Double Army'},
   {name: 'Doublemove', desc: 'Double moves'},
 //  {name: 'Dynamo', desc: 'Push and pull'},
diff --git a/variants/Avalanche/class.js b/variants/Avalanche/class.js
index ee80550..8a4981f 100644
--- a/variants/Avalanche/class.js
+++ b/variants/Avalanche/class.js
@@ -167,7 +167,7 @@ export default class AvalancheRules extends ChessRules {
     }
   }
 
-  atLeastOneMove(color, lastMove) {
+  atLeastOneMove(color) {
     if (this.subTurn == 0)
       return true;
     return super.atLeastOneMove(color);
diff --git a/variants/Chaining/class.js b/variants/Chaining/class.js
index 9d771da..4ae7208 100644
--- a/variants/Chaining/class.js
+++ b/variants/Chaining/class.js
@@ -20,8 +20,8 @@ export default class ChainingRules extends ChessRules {
     return true; //self captures induce chaining
   }
 
-  setOtherVariables(fenParsed, pieceArray) {
-    super.setOtherVariables(fenParsed, pieceArray);
+  setOtherVariables(fenParsed) {
+    super.setOtherVariables(fenParsed);
     // Stack of "last move" only for intermediate chaining
     this.lastMoveEnd = [];
   }
diff --git a/variants/Clorange/class.js b/variants/Clorange/class.js
index 485bbd6..e8506db 100644
--- a/variants/Clorange/class.js
+++ b/variants/Clorange/class.js
@@ -14,14 +14,6 @@ export default class ClorangeRules extends ChessRules {
     return true;
   }
 
-  getReserveFen(o) {
-    if (o.init)
-      return "00000000000000000000";
-    return (
-      ["w","b"].map(c => Object.values(this.reserve[c]).join("")).join("")
-    );
-  }
-
   pieces(color, x, y) {
     let res = super.pieces(color, x, y);
     res['s'] = {"class": "nv-pawn", moveas: "p"};
@@ -38,9 +30,8 @@ export default class ClorangeRules extends ChessRules {
   static get NV_PIECES() {
     return ['s', 'u', 'o', 'c', 't'];
   }
-
-  setOtherVariables(fen) {
-    super.setOtherVariables(fen, V.V_PIECES.concat(V.NV_PIECES));
+  static get ReserveArray() {
+    return V.V_PIECES.concat(V.NV_PIECES);
   }
 
   // Forbid non-violent pieces to capture
diff --git a/variants/Convert/class.js b/variants/Convert/class.js
index bc99c63..cd2d1a9 100644
--- a/variants/Convert/class.js
+++ b/variants/Convert/class.js
@@ -15,8 +15,8 @@ export default class ConvertRules extends ChessRules {
     return false;
   }
 
-  setOtherVariables(fenParsed, pieceArray) {
-    super.setOtherVariables(fenParsed, pieceArray);
+  setOtherVariables(fenParsed) {
+    super.setOtherVariables(fenParsed);
     // Stack of "last move" only for intermediate chaining
     this.lastMoveEnd = [];
   }
diff --git a/variants/Coregal/class.js b/variants/Coregal/class.js
index 23f67c7..bbc35a4 100644
--- a/variants/Coregal/class.js
+++ b/variants/Coregal/class.js
@@ -61,8 +61,8 @@ export default class CoregalRules extends ChessRules {
     );
   }
 
-  setOtherVariables(fenParsed, pieceArray) {
-    super.setOtherVariables(fenParsed, pieceArray);
+  setOtherVariables(fenParsed) {
+    super.setOtherVariables(fenParsed);
     this.relPos = {
       'w': {
         'k': fenParsed.relpos[0],
diff --git a/variants/Discoduel/class.js b/variants/Discoduel/class.js
new file mode 100644
index 0000000..c081b31
--- /dev/null
+++ b/variants/Discoduel/class.js
@@ -0,0 +1,51 @@
+import ChessRules from "/base_rules.js";
+import {ArrayFun} from "/utils/array.js"
+
+export default class DiscoduelRules extends ChessRules {
+
+  static get Options() {
+    return {}; //nothing would make sense
+  }
+
+  get pawnPromotions() {
+    return ['p'];
+  }
+
+  get hasFlags() {
+    return false;
+  }
+
+  genRandInitBaseFen() {
+    return {
+      fen: "1n4n1/8/8/8/8/8/PPPPPPPP/8",
+      o: {}
+    };
+  }
+
+  getPotentialMovesFrom([x, y]) {
+    const moves = super.getPotentialMovesFrom([x, y]);
+    if (this.turn == 'b')
+      // Prevent pawn captures on last rank:
+      return moves.filter(m => m.vanish.length == 1 || m.vanish[1].x != 0);
+    return moves;
+  }
+
+  filterValid(moves) {
+    return moves;
+  }
+
+  getCurrentScore() {
+    // No real winning condition (promotions count...)
+    if (
+      ArrayFun.range(1, this.size.x).every(row_idx => {
+        this.board[row_idx].every(square => square.charAt(0) != 'w')
+      })
+      ||
+      !this.atLeastOneMove(this.turn)
+    ) {
+      return "1/2";
+    }
+    return "*";
+  }
+
+};
diff --git a/variants/Discoduel/rules.html b/variants/Discoduel/rules.html
new file mode 100644
index 0000000..490d279
--- /dev/null
+++ b/variants/Discoduel/rules.html
@@ -0,0 +1,5 @@
+<p>
+  Eight pawns try to promote, while the knights attempts to prevent them.
+  A pawn reaching last rank does not transform, but become immune to captures.
+</p>
+<p>Goal: "promoting" as many pawns as possible.</p>
diff --git a/variants/Discoduel/style.css b/variants/Discoduel/style.css
new file mode 100644
index 0000000..a3550bc
--- /dev/null
+++ b/variants/Discoduel/style.css
@@ -0,0 +1 @@
+@import url("/base_pieces.css");
diff --git a/variants/Dobutsu/class.js b/variants/Dobutsu/class.js
new file mode 100644
index 0000000..7632a17
--- /dev/null
+++ b/variants/Dobutsu/class.js
@@ -0,0 +1,100 @@
+import ChessRules from "/base_rules.js";
+
+export default class DobutsuRules extends ChessRules {
+
+  static get Options() {
+    return {};
+  }
+
+  get hasFlags() {
+    return false;
+  }
+
+  get hasEnpassant() {
+    return false;
+  }
+
+  pieces(color, x, y) {
+    const pawnShift = this.getPawnShift(color || 'w');
+    // NOTE: classs change according to playerColor (orientation)
+    const mySide = (this.playerColor == color);
+    return {
+      'c': {
+        "class": (mySide ? "" : "rev-") + "chick",
+        both: [{steps: [[pawnShift, 0]], range: 1}]
+      },
+      'h': {
+        "class": (mySide ? "" : "rev-") + "hen",
+        both: [
+          {
+            steps: [
+              [pawnShift, 1], [pawnShift, -1],
+              [0, 1], [0, -1], [1, 0], [-1, 0]
+            ],
+            range: 1
+          }
+        ]
+      },
+      'e': {
+        "class": (mySide ? "" : "rev-") + "elephant",
+        both: [{steps: [[-1, 1], [-1, -1], [1, 1], [1, -1]], range: 1}]
+      },
+      'g': {
+        "class": (mySide ? "" : "rev-") + "giraffe",
+        both: [{steps: [[0, 1], [0, -1], [1, 0], [-1, 0]], range: 1}]
+      },
+      'l': {
+        "class": (mySide ? "" : "rev-") + "lion",
+        both: [{
+          steps: [[-1, 1], [-1, -1], [1, 1], [1, -1],
+                  [0, 1], [0, -1], [1, 0], [-1, 0]],
+          range: 1
+        }]
+      }
+    };
+  }
+
+  isKing(x, y, p) {
+    if (!p)
+      p = this.getPiece(x, y);
+    return (p == 'l');
+  }
+
+  static get ReserveArray() {
+    return ['p', 'h', 'e', 'g'];
+  }
+
+  constructor(o) {
+    o.options = {crazyhouse: true, taking: true};
+    super(o);
+  }
+
+  get pawnPromotions() {
+    return ['h'];
+  }
+
+  genRandInitBaseFen() {
+    return {
+      fen: "gle/1c1/1C1/ELG",
+      o: {}
+    };
+  }
+
+  get size() {
+    return {x: 4, y: 4};
+  }
+
+  getCurrentScore(move_s) {
+    const res = super.getCurrentScore(move_s);
+    if (res != '*')
+      return res;
+    const oppCol = C.GetOppTurn(this.turn);
+    const oppLastRank = (oppCol == 'b' ? 3 : 0);
+    for (let j=0; j < this.size.y; j++) {
+      if (this.board[oppLastRank][j] == oppCol + 'l')
+        return (oppCol == 'w' ? "1-0" : "0-1");
+    }
+    return "*";
+  }
+
+};
diff --git a/variants/Dobutsu/rules.html b/variants/Dobutsu/rules.html
new file mode 100644
index 0000000..45bbc5d
--- /dev/null
+++ b/variants/Dobutsu/rules.html
@@ -0,0 +1,12 @@
+<p>
+  Simplified Shogi game. Goal: capture the Lion.
+  Pieces move as indicated on them (red arrows).
+</p>
+
+<p>Captured units can be landed on the board later.</p>
+
+<p>
+  <a href="https://en.wikipedia.org/wiki/D%C5%8Dbutsu_sh%C5%8Dgi">
+    Wikipedia page
+  </a>.
+</p>
diff --git a/variants/Dobutsu/style.css b/variants/Dobutsu/style.css
new file mode 100644
index 0000000..fb861f1
--- /dev/null
+++ b/variants/Dobutsu/style.css
@@ -0,0 +1,34 @@
+piece.chick {
+  background-image: url('/pieces/Dobutsu/chick.svg');
+}
+piece.rev-chick {
+  background-image: url('/pieces/Dobutsu/rev_chick.svg');
+}
+
+piece.hen {
+  background-image: url('/pieces/Dobutsu/hen.svg');
+}
+piece.rev-hen {
+  background-image: url('/pieces/Dobutsu/rev_hen.svg');
+}
+
+piece.elephant {
+  background-image: url('/pieces/Dobutsu/elephant.svg');
+}
+piece.rev-elephant {
+  background-image: url('/pieces/Dobutsu/rev_elephant.svg');
+}
+
+piece.giraffe {
+  background-image: url('/pieces/Dobutsu/giraffe.svg');
+}
+piece.rev-giraffe {
+  background-image: url('/pieces/Dobutsu/rev_giraffe.svg');
+}
+
+piece.lion {
+  background-image: url('/pieces/Dobutsu/lion.svg');
+}
+piece.rev-lion {
+  background-image: url('/pieces/Dobutsu/rev_lion.svg');
+}
-- 
2.44.0