X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FEightpieces.js;h=583b1c5ac5a14e609324a274136da6d39cea31ec;hb=7f1df0d95d2190fd69ef7c58f5a795aef3f92869;hp=a232890ce5e7ab47a121d81d37b3042db6d917ed;hpb=737a5dafb39740ebe304b8d0a82df85070def571;p=vchess.git

diff --git a/client/src/variants/Eightpieces.js b/client/src/variants/Eightpieces.js
index a232890c..583b1c5a 100644
--- a/client/src/variants/Eightpieces.js
+++ b/client/src/variants/Eightpieces.js
@@ -406,12 +406,18 @@ export class EightpiecesRules extends ChessRules {
     // Pawns might be pushed on 1st rank and attempt to move again:
     if (!V.OnBoard(x + shiftX, y)) return [];
 
-    const finalPieces =
-      // A push cannot put a pawn on last rank (it goes backward)
-      x + shiftX == lastRank
-        ? Object.keys(V.LANCER_DIRS).concat(
-          [V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN, V.SENTRY, V.JAILER])
-        : [V.PAWN];
+    // A push cannot put a pawn on last rank (it goes backward)
+    let finalPieces = [V.PAWN];
+    if (x + shiftX == lastRank) {
+      // Only allow direction facing inside board:
+      const allowedLancerDirs =
+        lastRank == 0
+          ? ['e', 'f', 'g', 'h', 'm']
+          : ['c', 'd', 'e', 'm', 'o'];
+      finalPieces =
+        allowedLancerDirs
+        .concat([V.ROOK, V.KNIGHT, V.BISHOP, V.QUEEN, V.SENTRY, V.JAILER]);
+    }
     if (this.board[x + shiftX][y] == V.EMPTY) {
       // One square forward
       for (let piece of finalPieces) {
@@ -622,13 +628,18 @@ export class EightpiecesRules extends ChessRules {
             let chooseMoves = [];
             dirMoves.forEach(m => {
               Object.keys(V.LANCER_DIRS).forEach(k => {
-                let mk = JSON.parse(JSON.stringify(m));
-                mk.appear[0].p = k;
-                moves.push(mk);
+                const newDir = V.LANCER_DIRS[k];
+                // Prevent orientations toward outer board:
+                if (V.OnBoard(m.end.x + newDir[0], m.end.y + newDir[1])) {
+                  let mk = JSON.parse(JSON.stringify(m));
+                  mk.appear[0].p = k;
+                  chooseMoves.push(mk);
+                }
               });
             });
             Array.prototype.push.apply(moves, chooseMoves);
-          } else Array.prototype.push.apply(moves, dirMoves);
+          }
+          else Array.prototype.push.apply(moves, dirMoves);
         });
         return moves;
       }
@@ -640,13 +651,18 @@ export class EightpiecesRules extends ChessRules {
     if (this.subTurn == 1) {
       monodirMoves.forEach(m => {
         Object.keys(V.LANCER_DIRS).forEach(k => {
-          let mk = JSON.parse(JSON.stringify(m));
-          mk.appear[0].p = k;
-          moves.push(mk);
+          const newDir = V.LANCER_DIRS[k];
+          // Prevent orientations toward outer board:
+          if (V.OnBoard(m.end.x + newDir[0], m.end.y + newDir[1])) {
+            let mk = JSON.parse(JSON.stringify(m));
+            mk.appear[0].p = k;
+            moves.push(mk);
+          }
         });
       });
       return moves;
-    } else {
+    }
+    else {
       // I'm pushed: add potential nudges, except for current orientation
       let potentialNudges = [];
       for (let step of V.steps[V.ROOK].concat(V.steps[V.BISHOP])) {