feat(framework): core 座位↔视图转换

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-28 14:21:46 +08:00
parent bfd9339f64
commit c1be4dcb1e
2 changed files with 30 additions and 0 deletions
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+/** 绝对座位 → 以 mySeat 为视角的视图位（自己=0，其余环形顺延）。 */
+export function toView(mySeat: number, targetSeat: number, seatCount: number): number {
+  return ((targetSeat - mySeat) % seatCount + seatCount) % seatCount;
+}
+
+/** 视图位 → 绝对座位（toView 的逆运算）。 */
+export function fromView(mySeat: number, viewSeat: number, seatCount: number): number {
+  return ((viewSeat + mySeat) % seatCount + seatCount) % seatCount;
+}