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dy, dx 테크닉 #43

@devLupin

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@devLupin
  • 현재 방향 d에 상관없이 한 방향으로 회전
for (int i = 0; i < 4; i++) {
        int nd = (d + i) % 4;
        int ny = y + dy[nd];
        int nx = x + dx[nd];
}

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