feat: 增加字母笔顺图片

miniprogram/englishPages/letterTracing/generators/letter-tracing-generator.ts

@@ -317,9 +317,7 @@ export function generateLetterTracing(
         const upper = key;
         const lower = key.toLowerCase();
 
-        const hasLetterAsset = key === 'A' || key === 'B';
-        const letterFile = hasLetterAsset ? key : 'A';
-        const letterImgPath = `/englishPages/shared/assets/letter/${letterFile}.png`;
+        const letterImgPath = `/englishPages/shared/assets/letter/${key}.png`;
 
         const wordImgPath = `/englishPages/shared/assets/letterImgs/Apple.png`;
 
@@ -361,9 +359,15 @@ export function generateLetterTracing(
     if (mode === 'letter-tracing-two-column') {
         const leftLetters = LETTERS_UPPER.slice(0, 13);
         const rightLetters = LETTERS_UPPER.slice(13);
+        const twoColumnRepetitions = 4;
         const toRows = (letters: string[]) =>
             letters.map((L) =>
-                rowForChar(L, repetitions, fadePattern, L.toLowerCase()),
+                rowForChar(
+                    L,
+                    twoColumnRepetitions,
+                    fadePattern,
+                    L.toLowerCase(),
+                ),
             );
         return {
             mode: 'letter-tracing-two-column',
@@ -450,11 +454,7 @@ export function mergeLetterTracingConfig(
             'A-M') as AlphabetHalf,
         tripleLetters: overrides.tripleLetters ??
             base.tripleLetters ?? ['A', 'B', 'C'],
-        dailyLetters: overrides.dailyLetters ?? base.dailyLetters ?? [
-            'A',
-            'B',
-            'C',
-            'D',
-        ],
+        dailyLetters: overrides.dailyLetters ??
+            base.dailyLetters ?? ['A', 'B', 'C', 'D'],
     };
 }