Add dizhi coordinate system

WandererXII/lishogi#880
WandererXII · Dec 24, 2024 · e62c6b9 · e62c6b9
1 parent 1dcefee
commit e62c6b9
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Showing 2 changed files with 20 additions and 1 deletion.
diff --git a/src/constants.ts b/src/constants.ts
@@ -43,4 +43,4 @@ export const allKeys: readonly Key[] = Array.prototype.concat(
   ...ranks.map(r => files.map(f => f + r))
 );
 
-export const notations = ['numeric', 'japanese', 'engine', 'hex'] as const;
+export const notations = ['numeric', 'japanese', 'engine', 'hex', 'dizhi'] as const;
diff --git a/src/coords.ts b/src/coords.ts
@@ -2,6 +2,25 @@ import type { Notation } from './types.js';
 
 export function coords(notation: Notation): string[] {
   switch (notation) {
+    case 'dizhi':
+      return [
+        '',
+        '',
+        '',
+        '',
+        '亥',
+        '戌',
+        '酉',
+        '申',
+        '未',
+        '午',
+        '巳',
+        '辰',
+        '卯',
+        '寅',
+        '丑',
+        '子',
+      ];
     case 'japanese':
       return [
         '十六',