Add Madrasi, fix Absorption, better pieces management

[xogo.git] / variants / Madrasi / class.js

diff --git a/variants/Madrasi/class.js b/variants/Madrasi/class.js
new file mode 100644 (file)
index 0000000..eaabf07
--- /dev/null
+++ b/variants/Madrasi/class.js
@@ -0,0 +1,38 @@
+import ChessRules from "/base_rules.js";
+
+export default class MadrasiRules extends ChessRules {
+
+  static get Options() {
+    return {
+      select: C.Options.select,
+      check: [
+        {
+          label: "Rex Incl.",
+          defaut: false,
+          variable: "rexincl"
+        }
+      ].concat(C.Options.check),
+      styles: C.Options.styles.filter(s => s != "madrasi")
+    };
+  }
+
+  constructor(o) {
+    o.options["madrasi"] = true;
+    super(o);
+  }
+
+  underCheck([x, y], color) {
+    if (this.options["rexincl"]) {
+      // If Rex Inclusive, kings do not check each other:
+      // we just replace it very temporarily.
+      const [ox, oy] = this.searchKingPos(color);
+      const saveOppKing = this.board[ox][oy];
+      this.board[ox][oy] = C.GetOppCol(color) + "q"; //arbitrary
+      const res = super.underCheck([x, y], color);
+      this.board[ox][oy] = saveOppKing;
+      return res;
+    }
+    return super.underCheck([x, y], color);
+  }
+
+};