Started code review + some fixes (unfinished)
[vchess.git] / client / src / variants / Upsidedown.js
index de72216..538fb4a 100644 (file)
@@ -2,73 +2,75 @@ import { ChessRules } from "@/base_rules";
 import { randInt } from "@/utils/alea";
 import { ArrayFun } from "@/utils/array";
 
-export const VariantRules = class UpsidedownRules extends ChessRules
-{
-       static get HasFlags() { return false; }
+export const VariantRules = class UpsidedownRules extends ChessRules {
+  static get HasFlags() {
+    return false;
+  }
 
-       static get HasEnpassant() { return false; }
+  static get HasEnpassant() {
+    return false;
+  }
 
-       getPotentialKingMoves(sq)
-       {
-               // No castle
-               return this.getSlideNJumpMoves(sq,
-                       V.steps[V.ROOK].concat(V.steps[V.BISHOP]), "oneStep");
-       }
+  getPotentialKingMoves(sq) {
+    // No castle
+    return this.getSlideNJumpMoves(
+      sq,
+      V.steps[V.ROOK].concat(V.steps[V.BISHOP]),
+      "oneStep"
+    );
+  }
 
-       static GenRandInitFen()
-       {
-               let pieces = { "w": new Array(8), "b": new Array(8) };
-               for (let c of ["w","b"])
-               {
-                       let positions = ArrayFun.range(8);
+  static GenRandInitFen() {
+    let pieces = { w: new Array(8), b: new Array(8) };
+    for (let c of ["w", "b"]) {
+      let positions = ArrayFun.range(8);
 
-                       let randIndex = randInt(8);
-                       const kingPos = positions[randIndex];
-                       positions.splice(randIndex, 1);
+      let randIndex = randInt(8);
+      const kingPos = positions[randIndex];
+      positions.splice(randIndex, 1);
 
-                       // At least a knight must be next to the king:
-                       let knight1Pos = undefined;
-                       if (kingPos == 0)
-                               knight1Pos = 1;
-                       else if (kingPos == V.size.y-1)
-                               knight1Pos = V.size.y-2;
-                       else
-                               knight1Pos = kingPos + (Math.random() < 0.5 ? 1 : -1);
-                       // Search for knight1Pos index in positions and remove it
-                       const knight1Index = positions.indexOf(knight1Pos);
-                       positions.splice(knight1Index, 1);
+      // At least a knight must be next to the king:
+      let knight1Pos = undefined;
+      if (kingPos == 0) knight1Pos = 1;
+      else if (kingPos == V.size.y - 1) knight1Pos = V.size.y - 2;
+      else knight1Pos = kingPos + (Math.random() < 0.5 ? 1 : -1);
+      // Search for knight1Pos index in positions and remove it
+      const knight1Index = positions.indexOf(knight1Pos);
+      positions.splice(knight1Index, 1);
 
-                       // King+knight1 are on two consecutive squares: one light, one dark
-                       randIndex = 2 * randInt(3);
-                       const bishop1Pos = positions[randIndex];
-                       let randIndex_tmp = 2 * randInt(3) + 1;
-                       const bishop2Pos = positions[randIndex_tmp];
-                       positions.splice(Math.max(randIndex,randIndex_tmp), 1);
-                       positions.splice(Math.min(randIndex,randIndex_tmp), 1);
+      // King+knight1 are on two consecutive squares: one light, one dark
+      randIndex = 2 * randInt(3);
+      const bishop1Pos = positions[randIndex];
+      let randIndex_tmp = 2 * randInt(3) + 1;
+      const bishop2Pos = positions[randIndex_tmp];
+      positions.splice(Math.max(randIndex, randIndex_tmp), 1);
+      positions.splice(Math.min(randIndex, randIndex_tmp), 1);
 
-                       randIndex = randInt(4);
-                       const knight2Pos = positions[randIndex];
-                       positions.splice(randIndex, 1);
+      randIndex = randInt(4);
+      const knight2Pos = positions[randIndex];
+      positions.splice(randIndex, 1);
 
-                       randIndex = randInt(3);
-                       const queenPos = positions[randIndex];
-                       positions.splice(randIndex, 1);
+      randIndex = randInt(3);
+      const queenPos = positions[randIndex];
+      positions.splice(randIndex, 1);
 
-                       const rook1Pos = positions[0];
-                       const rook2Pos = positions[1];
+      const rook1Pos = positions[0];
+      const rook2Pos = positions[1];
 
-                       pieces[c][rook1Pos] = 'r';
-                       pieces[c][knight1Pos] = 'n';
-                       pieces[c][bishop1Pos] = 'b';
-                       pieces[c][queenPos] = 'q';
-                       pieces[c][kingPos] = 'k';
-                       pieces[c][bishop2Pos] = 'b';
-                       pieces[c][knight2Pos] = 'n';
-                       pieces[c][rook2Pos] = 'r';
-               }
-               return pieces["w"].join("").toUpperCase() +
-                       "/PPPPPPPP/8/8/8/8/pppppppp/" +
-                       pieces["b"].join("") +
-                       " w 0"; //no castle, no en-passant
-       }
-}
+      pieces[c][rook1Pos] = "r";
+      pieces[c][knight1Pos] = "n";
+      pieces[c][bishop1Pos] = "b";
+      pieces[c][queenPos] = "q";
+      pieces[c][kingPos] = "k";
+      pieces[c][bishop2Pos] = "b";
+      pieces[c][knight2Pos] = "n";
+      pieces[c][rook2Pos] = "r";
+    }
+    return (
+      pieces["w"].join("").toUpperCase() +
+      "/PPPPPPPP/8/8/8/8/pppppppp/" +
+      pieces["b"].join("") +
+      " w 0"
+    ); //no castle, no en-passant
+  }
+};