X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fbase_rules.js;h=4b9a139f885cebdcd9ec122ac03fd2ee6a648051;hb=e3e2cc443054cfb273b28b3ba46f559117c5ceae;hp=056f4774a9c3b56047e7b63ca4f49a6f767f0586;hpb=6808d7a16ec1e761c6a2dffec2281c96953e4d89;p=vchess.git

diff --git a/client/src/base_rules.js b/client/src/base_rules.js
index 056f4774..4b9a139f 100644
--- a/client/src/base_rules.js
+++ b/client/src/base_rules.js
@@ -4,8 +4,8 @@
 import { ArrayFun } from "@/utils/array";
 import { randInt, shuffle } from "@/utils/alea";
 
+// class "PiPo": Piece + Position
 export const PiPo = class PiPo {
-  //Piece+Position
   // o: {piece[p], color[c], posX[x], posY[y]}
   constructor(o) {
     this.p = o.p;
@@ -15,7 +15,6 @@ export const PiPo = class PiPo {
   }
 };
 
-// TODO: for animation, moves should contains "moving" and "fading" maybe...
 export const Move = class Move {
   // o: {appear, vanish, [start,] [end,]}
   // appear,vanish = arrays of PiPo
@@ -33,17 +32,32 @@ export const ChessRules = class ChessRules {
   //////////////
   // MISC UTILS
 
+  // Some variants don't have flags:
   static get HasFlags() {
     return true;
-  } //some variants don't have flags
+  }
 
+  // Some variants don't have en-passant
   static get HasEnpassant() {
     return true;
-  } //some variants don't have ep.
+  }
 
-  // Path to pieces
-  static getPpath(b) {
-    return b; //usual pieces in pieces/ folder
+  // Some variants cannot have analyse mode
+  static get CanAnalyze() {
+    return true;
+  }
+  // Patch: issues with javascript OOP, objects can't access static fields.
+  get canAnalyze() {
+    return V.CanAnalyze;
+  }
+
+  // Some variants show incomplete information,
+  // and thus show only a partial moves list or no list at all.
+  static get ShowMoves() {
+    return "all";
+  }
+  get showMoves() {
+    return V.ShowMoves;
   }
 
   // Turn "wb" into "B" (for FEN)
@@ -84,9 +98,12 @@ export const ChessRules = class ChessRules {
     if (position.length == 0) return false;
     const rows = position.split("/");
     if (rows.length != V.size.x) return false;
+    let kings = {};
     for (let row of rows) {
       let sumElts = 0;
       for (let i = 0; i < row.length; i++) {
+        if (['K','k'].includes(row[i]))
+          kings[row[i]] = true;
         if (V.PIECES.includes(row[i].toLowerCase())) sumElts++;
         else {
           const num = parseInt(row[i]);
@@ -96,6 +113,9 @@ export const ChessRules = class ChessRules {
       }
       if (sumElts != V.size.y) return false;
     }
+    // Both kings should be on board:
+    if (Object.keys(kings).length != 2)
+      return false;
     return true;
   }
 
@@ -142,6 +162,11 @@ export const ChessRules = class ChessRules {
     return V.CoordToColumn(coords.y) + (V.size.x - coords.x);
   }
 
+  // Path to pieces
+  getPpath(b) {
+    return b; //usual pieces in pieces/ folder
+  }
+
   // Aggregates flags into one object
   aggregateFlags() {
     return this.castleFlags;
@@ -249,12 +274,13 @@ export const ChessRules = class ChessRules {
       pieces[c][knight2Pos] = "n";
       pieces[c][rook2Pos] = "r";
     }
+    // Add turn + flags + enpassant
     return (
       pieces["b"].join("") +
       "/pppppppp/8/8/8/8/PPPPPPPP/" +
       pieces["w"].join("").toUpperCase() +
       " w 0 1111 -"
-    ); //add turn + flags + enpassant
+    );
   }
 
   // "Parse" FEN: just return untransformed string data
@@ -339,9 +365,9 @@ export const ChessRules = class ChessRules {
       for (let indexInRow = 0; indexInRow < rows[i].length; indexInRow++) {
         const character = rows[i][indexInRow];
         const num = parseInt(character);
+        // If num is a number, just shift j:
         if (!isNaN(num)) j += num;
-        //just shift j
-        //something at position i,j
+        // Else: something at position i,j
         else board[i][j++] = V.fen2board(character);
       }
     }
@@ -361,7 +387,9 @@ export const ChessRules = class ChessRules {
   // INITIALIZATION
 
   constructor(fen) {
-    this.re_init(fen);
+    // In printDiagram() fen isn't supply because only getPpath() is used
+    if (fen)
+      this.re_init(fen);
   }
 
   // Fen string fully describes the game state
@@ -417,7 +445,7 @@ export const ChessRules = class ChessRules {
     if (V.HasEnpassant) {
       const epSq =
         parsedFen.enpassant != "-"
-          ? V.SquareToCoords(parsedFen.enpassant)
+          ? this.getEpSquare(parsedFen.enpassant)
           : undefined;
       this.epSquares = [epSq];
     }
@@ -704,10 +732,11 @@ export const ChessRules = class ChessRules {
     const oppCol = V.GetOppCol(c);
     let moves = [];
     let i = 0;
+    // King, then rook:
     const finalSquares = [
       [2, 3],
       [V.size.y - 2, V.size.y - 3]
-    ]; //king, then rook
+    ];
     castlingCheck: for (
       let castleSide = 0;
       castleSide < 2;
@@ -949,6 +978,8 @@ export const ChessRules = class ChessRules {
   // After move is played, update variables + flags
   updateVariables(move) {
     let piece = undefined;
+    // TODO: update variables before move is played, and just use this.turn ?
+    // (doesn't work in general, think MarseilleChess)
     let c = undefined;
     if (move.vanish.length >= 1) {
       // Usual case, something is moved
@@ -959,9 +990,8 @@ export const ChessRules = class ChessRules {
       piece = move.appear[0].p;
       c = move.appear[0].c;
     }
-    if (c == "c") {
-      //if (!["w","b"].includes(c))
-      // 'c = move.vanish[0].c' doesn't work for Checkered
+    if (!['w','b'].includes(c)) {
+      // Checkered, for example
       c = V.GetOppCol(this.turn);
     }
     const firstRank = c == "w" ? V.size.x - 1 : 0;
@@ -1004,9 +1034,9 @@ export const ChessRules = class ChessRules {
 
   play(move) {
     // DEBUG:
-    //    if (!this.states) this.states = [];
-    //    const stateFen = this.getBaseFen() + this.getTurnFen() + this.getFlagsFen();
-    //    this.states.push(stateFen);
+//    if (!this.states) this.states = [];
+//    const stateFen = this.getBaseFen() + this.getTurnFen() + this.getFlagsFen();
+//    this.states.push(stateFen);
 
     if (V.HasFlags) move.flags = JSON.stringify(this.aggregateFlags()); //save flags (for undo)
     if (V.HasEnpassant) this.epSquares.push(this.getEpSquare(move));
@@ -1025,9 +1055,9 @@ export const ChessRules = class ChessRules {
     this.unupdateVariables(move);
 
     // DEBUG:
-    //    const stateFen = this.getBaseFen() + this.getTurnFen() + this.getFlagsFen();
-    //    if (stateFen != this.states[this.states.length-1]) debugger;
-    //    this.states.pop();
+//    const stateFen = this.getBaseFen() + this.getTurnFen() + this.getFlagsFen();
+//    if (stateFen != this.states[this.states.length-1]) debugger;
+//    this.states.pop();
   }
 
   ///////////////
@@ -1036,7 +1066,6 @@ export const ChessRules = class ChessRules {
   // What is the score ? (Interesting if game is over)
   getCurrentScore() {
     if (this.atLeastOneMove())
-      // game not over
       return "*";
 
     // Game over
@@ -1233,7 +1262,7 @@ export const ChessRules = class ChessRules {
   // TODO: un-ambiguous notation (switch on piece type, check directions...)
   getNotation(move) {
     if (move.appear.length == 2 && move.appear[0].p == V.KING)
-      //castle
+      // Castle
       return move.end.y < move.start.y ? "0-0-0" : "0-0";
 
     // Translate final square
@@ -1247,10 +1276,10 @@ export const ChessRules = class ChessRules {
         // Capture
         const startColumn = V.CoordToColumn(move.start.y);
         notation = startColumn + "x" + finalSquare;
-      } //no capture
+      }
       else notation = finalSquare;
       if (move.appear.length > 0 && move.appear[0].p != V.PAWN)
-        //promotion
+        // Promotion
         notation += "=" + move.appear[0].p.toUpperCase();
       return notation;
     }