Draft Royalrace variant

[vchess.git] / client / src / base_rules.js

diff --git a/client/src/base_rules.js b/client/src/base_rules.js
index 4b9a139..4f1478e 100644 (file)
--- a/client/src/base_rules.js
+++ b/client/src/base_rules.js
@@ -60,6 +60,14 @@ export const ChessRules = class ChessRules {
     return V.ShowMoves;
   }
 
+  // Some variants always show the same orientation
+  static get CanFlip() {
+    return true;
+  }
+  get canFlip() {
+    return V.CanFlip;
+  }
+
   // Turn "wb" into "B" (for FEN)
   static board2fen(b) {
     return b[0] == "w" ? b[1].toUpperCase() : b[1];
@@ -378,7 +386,6 @@ export const ChessRules = class ChessRules {
   setFlags(fenflags) {
     // white a-castle, h-castle, black a-castle, h-castle
     this.castleFlags = { w: [true, true], b: [true, true] };
-    if (!fenflags) return;
     for (let i = 0; i < 4; i++)
       this.castleFlags[i < 2 ? "w" : "b"][i % 2] = fenflags.charAt(i) == "1";
   }
@@ -460,7 +467,7 @@ export const ChessRules = class ChessRules {
     return { x: 8, y: 8 };
   }
 
-  // Color of thing on suqare (i,j). 'undefined' if square is empty
+  // Color of thing on square (i,j). 'undefined' if square is empty
   getColor(i, j) {
     return this.board[i][j].charAt(0);
   }
@@ -536,7 +543,7 @@ export const ChessRules = class ChessRules {
   ////////////////////
   // MOVES GENERATION
 
-  // All possible moves from selected square (assumption: color is OK)
+  // All possible moves from selected square
   getPotentialMovesFrom([x, y]) {
     switch (this.getPiece(x, y)) {
       case V.PAWN:
@@ -627,8 +634,8 @@ export const ChessRules = class ChessRules {
         x + shiftX == lastRank
           ? [V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN]
           : [V.PAWN];
-      // One square forward
       if (this.board[x + shiftX][y] == V.EMPTY) {
+        // One square forward
         for (let piece of finalPieces) {
           moves.push(
             this.getBasicMove([x, y], [x + shiftX, y], {