X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=client%2Fsrc%2Fvariants%2FSelfabsorb.js;fp=client%2Fsrc%2Fvariants%2FSelfabsorb.js;h=0a8a747354e066ad59114b941bc01e793b7d4d1b;hb=1943de6b9d55716dac4ef8b5672bed803d8d43f9;hp=0000000000000000000000000000000000000000;hpb=c4244fcb06fd281722b57acd499c433150970e47;p=vchess.git

diff --git a/client/src/variants/Selfabsorb.js b/client/src/variants/Selfabsorb.js
new file mode 100644
index 00000000..0a8a7473
--- /dev/null
+++ b/client/src/variants/Selfabsorb.js
@@ -0,0 +1,73 @@
+import { ChessRules } from "@/base_rules";
+import { AbsorptionRules } from "@/variants/Absorption";
+
+export class SelfabsorbRules extends AbsorptionRules {
+
+  canTake([x1, y1], [x2, y2]) {
+    if (this.getColor(x1, y1) !== this.getColor(x2, y2)) return true;
+    const p1 = this.getPiece(x1, y1);
+    const p2 = this.getPiece(x2, y2);
+    return (
+      p1 != p2 &&
+      [V.QUEEN, V.RN, V.BN, V.ROOK, V.KNIGHT, V.BISHOP].includes(p1) &&
+      [V.QUEEN, V.RN, V.BN, V.ROOK, V.KNIGHT, V.BISHOP].includes(p2) &&
+      (p1 != V.QUEEN || p2 == V.KNIGHT) &&
+      (p2 != V.QUEEN || p1 == V.KNIGHT) &&
+      (p1 != V.RN || p2 == V.BISHOP) &&
+      (p2 != V.RN || p1 == V.BISHOP) &&
+      (p1 != V.BN || p2 == V.ROOK) &&
+      (p2 != V.BN || p1 == V.ROOK)
+    );
+  }
+
+  getPotentialMovesFrom(sq) {
+    let moves = [];
+    const piece = this.getPiece(sq[0], sq[1]);
+    switch (piece) {
+      case V.RN:
+        moves =
+          super.getPotentialRookMoves(sq).concat(
+          super.getPotentialKnightMoves(sq));
+        break;
+      case V.BN:
+        moves =
+          super.getPotentialBishopMoves(sq).concat(
+          super.getPotentialKnightMoves(sq));
+        break;
+      case V.QN:
+        moves =
+          super.getPotentialQueenMoves(sq).concat(
+          super.getPotentialKnightMoves(sq));
+        break;
+      case V.PAWN:
+        moves = super.getPotentialPawnMoves(sq);
+        break;
+      case V.ROOK:
+        moves = super.getPotentialRookMoves(sq);
+        break;
+      case V.KNIGHT:
+        moves = super.getPotentialKnightMoves(sq);
+        break;
+      case V.BISHOP:
+        moves = super.getPotentialBishopMoves(sq);
+        break;
+      case V.QUEEN:
+        moves = super.getPotentialQueenMoves(sq);
+        break;
+      case V.KING:
+        moves = super.getPotentialKingMoves(sq);
+        break;
+    }
+    moves.forEach(m => {
+      if (
+        m.vanish.length == 2 && m.appear.length == 1 &&
+        piece != m.vanish[1].p && m.vanish[0].c == m.vanish[1].c
+      ) {
+        // Augment pieces abilities in case of self-captures
+        m.appear[0].p = V.Fusion(piece, m.vanish[1].p);
+      }
+    });
+    return moves;
+  }
+
+};