Minefield: Another board size tweak

Author: Perlkonig

locales/en/apgames.json

@@ -1683,8 +1683,8 @@
             }
         },
         "minefield": {
-            "size-7": {
-                "name": "7x7 board"
+            "size-8": {
+                "name": "8x8 board"
             },
             "size-9": {
                 "name": "9x9 board"

src/common/plotting.ts

@@ -250,6 +250,16 @@ export function allRotationsAndReflections(
   const includeReflections = options?.includeReflections ?? true;
   const normalize = options?.normalize ?? "none";
 
+  // Check for duplicate points
+  const seenPoints = new Set<string>();
+  for (const { dx, dy } of deltas) {
+    const key = `${dx},${dy}`;
+    if (seenPoints.has(key)) {
+      throw new Error(`Input contains duplicate points: ${key}`);
+    }
+    seenPoints.add(key);
+  }
+
   // ---- D4 transforms on the (dx,dy) portion only; pc is retained
   const rot90 = (d: Delta): Delta => ({ dx: -d.dy, dy: d.dx, payload: d.payload });
   const rot180 = (d: Delta): Delta => ({ dx: -d.dx, dy: -d.dy, payload: d.payload });
@@ -279,7 +289,7 @@ export function allRotationsAndReflections(
   };
 
   // ---- Stable key for dedupe (includes pc to avoid collapsing different labeled shapes)
-  // Sort by dx, dy, pc so that order in input doesn't matter.
+  // Sort by dx, dy so that order in input doesn't matter.
   const keyOf = (ds: Delta[]): string => {
     const sorted = [...ds].sort((a, b) =>
       (a.dx - b.dx) || (a.dy - b.dy)

src/games/minefield.ts

@@ -53,7 +53,7 @@ export class MinefieldGame extends GameBase {
             },
         ],
         variants: [
-            { uid: "size-7", group: "board" },
+            { uid: "size-8", group: "board" },
             { uid: "size-9", group: "board" },
             { uid: "#board", },
             { uid: "size-13", group: "board" },