Teleport2 (no king repositioning) + do not relay some challenges

[vchess.git] / client / src / variants / Teleport2.js

diff --git a/client/src/variants/Teleport2.js b/client/src/variants/Teleport2.js
new file mode 100644 (file)
index 0000000..4e0fe23
--- /dev/null
+++ b/client/src/variants/Teleport2.js
@@ -0,0 +1,57 @@
+import { Teleport1Rules } from "@/variants/Teleport1";
+
+export class Teleport2Rules extends Teleport1Rules {
+
+  canTake([x1, y1], [x2, y2]) {
+    // Cannot teleport king:
+    return (this.subTurn == 1 && this.getPiece(x2, y2) != V.KING);
+  }
+
+  underCheck(color) {
+    // Standard method:
+    return this.isAttacked(this.kingPos[color], V.GetOppCol(color));
+  }
+
+  postPlay(move) {
+    if (move.vaish.length > 0) {
+      // Standard method:
+      if (move.appear[0].p == V.KING)
+        this.kingPos[move.appear[0].c] = [move.appear[0].x, move.appear[0].y];
+      this.updateCastleFlags(move);
+    }
+  }
+
+  updateCastleFlags(move) {
+    // Standard method: TODO = find a better way... (not rewriting)
+    const c = color || V.GetOppCol(this.turn);
+    const firstRank = (c == "w" ? V.size.x - 1 : 0);
+    const oppCol = this.turn;
+    const oppFirstRank = V.size.x - 1 - firstRank;
+    if (piece == V.KING && move.appear.length > 0)
+      this.castleFlags[c] = [V.size.y, V.size.y];
+    else if (
+      move.start.x == firstRank &&
+      this.castleFlags[c].includes(move.start.y)
+    ) {
+      const flagIdx = (move.start.y == this.castleFlags[c][0] ? 0 : 1);
+      this.castleFlags[c][flagIdx] = V.size.y;
+    }
+    if (
+      move.end.x == oppFirstRank &&
+      this.castleFlags[oppCol].includes(move.end.y)
+    ) {
+      const flagIdx = (move.end.y == this.castleFlags[oppCol][0] ? 0 : 1);
+      this.castleFlags[oppCol][flagIdx] = V.size.y;
+    }
+  }
+
+  postUndo(move) {
+    if (move.vanish.length > 0) {
+      // Standard method:
+      const c = this.getColor(move.start.x, move.start.y);
+      if (this.getPiece(move.start.x, move.start.y) == V.KING)
+        this.kingPos[c] = [move.start.x, move.start.y];
+    }
+  }
+
+};