Draft Antiking1/2. Changed underCheck/searchKingPos (TODO: impact on some other variants)

[xogo.git] / variants / AbstractAntiking.js

diff --git a/variants/AbstractAntiking.js b/variants/AbstractAntiking.js
new file mode 100644 (file)
index 0000000..7846add
--- /dev/null
+++ b/variants/AbstractAntiking.js
@@ -0,0 +1,69 @@
+import ChessRules from "/base_rules.js";
+
+export class AbstractAntikingRules extends ChessRules {
+
+  static get Options() {
+    return {
+      styles: [
+        "atomic",
+        "balance",
+        "cannibal",
+        "capture",
+        "crazyhouse",
+        "doublemove",
+        "madrasi",
+        "progressive",
+        "recycle",
+        "rifle",
+        "teleport",
+        "zen"
+      ]
+    };
+  }
+
+  pieces(color, x, y) {
+    "a": {
+      // Move like a king, no attacks
+      "class": "antiking",
+      moves: super.pieces(color, x, y)['k'].moves,
+      attack: []
+    }
+  }
+
+  isKing(x, y, p) {
+    if (!p)
+      p = this.getPiece(x, y);
+    return ['k', 'a'].includes(p);
+  }
+
+  canTake([x1, y1], [x2, y2]) {
+    const piece1 = this.getPiece(x1, y1);
+    const piece2 = this.getPiece(x2, y2);
+    const color1 = this.getColor(x1, y1);
+    const color2 = this.getColor(x2, y2);
+    return (
+      piece2 != 'a' &&
+      (
+        (piece1 != 'a' && color1 != color2) ||
+        (piece1 == 'a' && color1 == color2)
+      )
+    );
+  }
+
+  underCheck(squares, color) {
+    const oppCol = C.GetOppCol(color);
+    let res = false;
+    squares.forEach(sq => {
+      switch (this.getPiece(sq[0], sq[1])) {
+        case 'k':
+          res ||= super.underAttack(sq, oppCol);
+          break;
+        case 'a':
+          res ||= !super.underAttack(sq, oppCol);
+          break;
+      }
+    });
+    return res;
+  }
+
+};