From Minecraft Parkour Wiki
    This page is a translated version of the page Ticks and the translation is 62% complete.
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    Minecraftの物理エンジンは1秒に20 ticksで動作しているので、ゲーム内の動きは0.05秒ごとに更新されることになる。




    Turn Tick

    Mouse Movement is not inherently tied to tickrate, but rather the framerate.

    However, the game has to keep a copy of the player's rotation for movement calculations, which it updates once every tick. The moment the player's rotation is copied is called the turn tick.

    From the player's perspective, there is no way to control when the turn tick happens. This has a severe impact on turn-based jumps, which become partially luck-based as a result: given the same (smooth) turning sequence, the player's resulting movement could be quite different.

    One solution is to turn instantly every 50ms to land precisely on the wanted angle. This is feasible for simple turn strats such as 45° Strafes, but not for more complex strats that would require smooth turning.