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Keyword / 2 entries

algorithm

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  1. 1

    Don't Animate a Guess. Let the Rules Engine Return the Replay.

    My game engine knew that one piece had moved, another had been pushed, a tile had cracked, and perhaps somebody had left the board at speed. The Flutter UI knew that the board looked different now. That left a tempting little gap. The UI could compare the old board with the new one, infer what probably happened, and…

    • game-dev
    • algorithm

    EN2026-08-27

  2. 2

    Why 45992700 Is Not 459927: Longest-Prefix-First BIN Matching for Korean Cards

    Here is a small quiz. A user in Seoul types a card number that starts with 4599 2700. Your card-type detector looks at it and says, confidently: Visa. Is it wrong? No. Is it useful? Also no. In the Korean payments context, "Visa" is barely the beginning of the question. Which issuer — 신한카드? 현대카드? Is it a credit card…

    • dart
    • flutter
    • payments
    • algorithm

    EN2026-07-18

Dongmin Yu · Mobile developer

Seoul, South Korea

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