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	<title>ランダムウォーク | スイッチ対応レッドストーン装置研究所</title>
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	<description>マインクラフトのレッドストーンを用いた装置を中心に研究しております。統合版なのでスイッチにも対応！</description>
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	<title>ランダムウォーク | スイッチ対応レッドストーン装置研究所</title>
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		<title>【マイクラ】ランダムウォークの範囲を検証し、トラップタワーに活かすナリ【統合版】</title>
		<link>https://minecraft-redstone.com/randomwalk/</link>
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		<dc:creator><![CDATA[所長]]></dc:creator>
		<pubDate>Sat, 04 May 2019 13:51:33 +0000</pubDate>
				<category><![CDATA[検証]]></category>
		<category><![CDATA[ランダムウォーク]]></category>
		<guid isPermaLink="false">https://minecraft-redstone.com/?p=1851</guid>

					<description><![CDATA[バージョン1.16.20で確認済 こんばんは、所長です。 統合版でモンスターの湧き範囲が変わったということで、トラップタワーの制作を考えています。というか制作中。 ランダムウォークを利用して落とし穴に落とすタイプでやって [&#8230;]]]></description>
										<content:encoded><![CDATA[<div class="information-box common-icon-box">バージョン1.16.20で確認済</div>
<p>こんばんは、所長です。</p>
<p>統合版でモンスターの湧き範囲が変わったということで、トラップタワーの制作を考えています。というか制作中。</p>
<p>ランダムウォークを利用して落とし穴に落とすタイプでやってみてるんですが、どうもランダムウォークの動きが思ってるのと違うな～ってことで、検証した結果を備忘録として残しておきます。</p>

  <div id="toc" class="toc tnt-number toc-center tnt-number border-element"><input type="checkbox" class="toc-checkbox" id="toc-checkbox-2" checked><label class="toc-title" for="toc-checkbox-2">目次</label>
    <div class="toc-content">
    <ol class="toc-list open"><li><a href="#toc1" tabindex="0">ランダムウォークとは</a></li><li><a href="#toc2" tabindex="0">プレイヤーとの距離が32ブロック離れても大丈夫</a></li><li><a href="#toc3" tabindex="0">透過ブロックは移動先にならない</a><ol><li><a href="#toc4" tabindex="0">透過ブロックの下に不透過ブロックがある場合</a></li></ol></li><li><a href="#toc5" tabindex="0">ランダムウォークの範囲</a><ol><li><a href="#toc6" tabindex="0">下への移動範囲</a></li><li><a href="#toc7" tabindex="0">上への移動範囲</a></li><li><a href="#toc8" tabindex="0">水平方向への移動範囲</a></li></ol></li><li><a href="#toc9" tabindex="0">積み上げたブロックは移動先になる</a></li><li><a href="#toc10" tabindex="0">移動先は近いが、移動経路が遠い場合</a></li><li><a href="#toc11" tabindex="0">まとめ</a></li></ol>
    </div>
  </div>

<h2><span id="toc1">ランダムウォークとは</span></h2>
<p>そもそもランダムウォークとはなんなのか。</p>
<p>ズバリ、<span class="bold">モンスターの歩行AI</span>です。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001.jpg"><img fetchpriority="high" decoding="async" class="alignnone size-large wp-image-1857" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-800x450.jpg" alt="モンスターがウロウロ歩く" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504001.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>モンスターってプレイヤーを見つけたら襲ってきますけど、そうでなければその辺をウロウロと歩いていますよね？</p>
<p>実はこれって適当に歩いてるんじゃなくて、「ココならイケます」「ココにはイケません」っていうのをアルゴリズムに沿って判定しながら歩いてるんです。</p>
<p>その<span class="bold marker-under-blue">アルゴリズムを逆手にとれば</span><span class="bold marker-under-blue">落とし穴に誘導したりできる</span>ので、トラップタワーに組み込むと効率アップが見込めるんですね。</p>
<p>そのためにランダムウォークのアルゴリズムを暴き出しましょう、というお話です。</p>

<a rel="noopener" href="https://minecraft-ja.gamepedia.com/%E5%88%A9%E7%94%A8%E8%80%85:Kyaco11/MOB%E3%81%AE%E5%BE%98%E5%BE%8A" title="https://minecraft-ja.gamepedia.com/%E5%88%A9%E7%94%A8%E8%80%85:Kyaco11/MOB%E3%81%AE%E5%BE%98%E5%BE%8A" class="blogcard-wrap external-blogcard-wrap a-wrap cf" target="_blank"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Fminecraft-ja.gamepedia.com%2F%25E5%2588%25A9%25E7%2594%25A8%25E8%2580%2585%3AKyaco11%2FMOB%25E3%2581%25AE%25E5%25BE%2598%25E5%25BE%258A?w=160&#038;h=90" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="160" height="90" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">https://minecraft-ja.gamepedia.com/%E5%88%A9%E7%94%A8%E8%80%85:Kyaco11/MOB%E3%81%AE%E5%BE%98%E5%BE%8A</div><div class="blogcard-snippet external-blogcard-snippet"></div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img decoding="async" src="https://www.google.com/s2/favicons?domain=https://minecraft-ja.gamepedia.com/%E5%88%A9%E7%94%A8%E8%80%85:Kyaco11/MOB%E3%81%AE%E5%BE%98%E5%BE%8A" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">minecraft-ja.gamepedia.com</div></div></div></div></a>

<a rel="noopener" href="https://www65.atwiki.jp/iotatto16/pages/42.html" title="検証/ランダムウォークの頻度と範囲 - いおた＠Minecraft【検証】wiki" class="blogcard-wrap external-blogcard-wrap a-wrap cf" target="_blank"><div class="blogcard external-blogcard eb-left cf"><div class="blogcard-label external-blogcard-label"><span class="fa"></span></div><figure class="blogcard-thumbnail external-blogcard-thumbnail"><img loading="lazy" decoding="async" src="https://s.wordpress.com/mshots/v1/https%3A%2F%2Fwww65.atwiki.jp%2Fiotatto16%2Fpages%2F42.html?w=160&#038;h=90" alt="" class="blogcard-thumb-image external-blogcard-thumb-image" width="160" height="90" /></figure><div class="blogcard-content external-blogcard-content"><div class="blogcard-title external-blogcard-title">検証/ランダムウォークの頻度と範囲 - いおた＠Minecraft【検証】wiki</div><div class="blogcard-snippet external-blogcard-snippet">検証内容 MOBのランダムウォークにおける一回当たりの移動範囲および頻度の検証 検証方法 MOBが移動先に選ばないガラスブロックで足場を作り、様々な高度・距離・方角に不透過ブロックを設置し移動できる最...</div></div><div class="blogcard-footer external-blogcard-footer cf"><div class="blogcard-site external-blogcard-site"><div class="blogcard-favicon external-blogcard-favicon"><img loading="lazy" decoding="async" src="https://www.google.com/s2/favicons?domain=https://www65.atwiki.jp/iotatto16/pages/42.html" alt="" class="blogcard-favicon-image external-blogcard-favicon-image" width="16" height="16" /></div><div class="blogcard-domain external-blogcard-domain">www65.atwiki.jp</div></div></div></div></a>
<p>基本的には「ランダムウォーク」で検索すると表示される、上記2ページとの差異について検証していきます。</p>
<h2><span id="toc2">プレイヤーとの距離が32ブロック離れても大丈夫</span></h2>
<p><span class="bold">プレイヤーとの距離が32ブロック以上離れている状態が続くとランダムウォークしなくなる</span>説。</p>
<p>これが真だとランダムウォーク型のトラップタワーはほぼ機能しないため、是が非でもクリアして欲しい項目ですが・・・</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1859" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-800x450.jpg" alt="遠くのゾンビが動いている" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504003.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>スポーン後、しばらく待っても遠くのゾンビが動いてるので<span class="bold red">問題ない</span>でしょう。</p>
<p><span class="bold red">私の検証はこれくらい雑なもんです(&#8216;-&#8216;)</span></p>
<h2><span id="toc3">透過ブロックは移動先にならない</span></h2>
<p><span class="bold">ガラスブロックやハーフブロックなど、透過ブロックは移動先にならない</span>説。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1860" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-800x450.jpg" alt="透過ブロックは移動先にならない説" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504004.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>下付きハーフブロック、上付きハーフブロック、ガラス、階段で検証してみましょう。（地面からは十分高さを離しています）</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1861" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-800x450.jpg" alt="移動しない" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504005.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>移動しません。<span class="bold red">透過ブロックは移動先にならない</span>ようです。</p>
<h3><span id="toc4">透過ブロックの下に不透過ブロックがある場合</span></h3>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1862" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-800x450.jpg" alt="透過ブロックの真下に不透過ブロック" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504006.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>透過ブロックの真下に3×3で不透過ブロックを置いてみました。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1863" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-800x450.jpg" alt="下付きハーフブロックだけがら空き" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504007.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>下付きハーフブロックのところだけがら空き。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1864 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-800x450.jpg" alt="行こうとした形跡アリ" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504008.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>ただし行こうとした形跡はあります。</p>
<p>「移動先までの移動経路がなければ最寄りのブロックまで近寄る」という特性から、不透過ブロックを移動先として認識しているものの、<span class="bold red">下付きハーフブロックを移動経路として認識していない</span>ようです。</p>
<div class="speech-wrap sb-id-15 sbs-stn sbp-l sbis-cb cf">
<div class="speech-person">
<figure class="speech-icon"><img decoding="async" class="speech-icon-image" src="https://minecraft-redstone.com/wp-content/uploads/2019/08/face.png" alt="所長" /></figure>
<div class="speech-name">所長</div>
</div>
<div class="speech-balloon">
<p>これはどこかで使えそうですねえ！</p>
</div>
</div>
<h2><span id="toc5">ランダムウォークの範囲</span></h2>
<p>続いてはメインとなる、ランダムウォークの範囲について。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1865" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-800x450.jpg" alt="ランダムウォークの範囲" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504009.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>モンスターが乗っているブロックを中心として、</p>
<div class="blank-box bb-blue">
<ul>
<li>上下に7ブロック</li>
<li>水平方向に10ブロック</li>
</ul>
</div>
<p><span class="bold">21×21×15がランダムウォークの範囲</span>とされています。</p>
<h3><span id="toc6">下への移動範囲</span></h3>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1866" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-800x450.jpg" alt="7ブロック下まで移動するかチェック" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504010.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>移動先に選択されないガラスブロックを間に置いて、7ブロック下の不透過ブロックまで移動するか見てみましょう。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1867 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-800x450.jpg" alt="移動しない" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504011.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>・・・待てど暮らせど移動しません。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1868 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-800x450.jpg" alt="ゾンビを増やしても移動せず" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504012.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>ゾンビを増やすことでヒット率を上げてみても結果は同じ。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1869" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-800x450.jpg" alt="6ブロックにすると移動" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504013.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>6ブロックだとあっさり行ったり来たりします。<span class="bold red">下方向への移動範囲は6ブロック</span>のようです。</p>
<h3><span id="toc7">上への移動範囲</span></h3>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1870 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-800x450.jpg" alt="7ブロック上まで移動するかチェック" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504014.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>上方向も7ブロックでチェックしたものの移動せず。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1871 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-800x450.jpg" alt="6ブロックにすると移動" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504015.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>6ブロックなら移動しました。<span class="bold red">上方向への移動範囲は6ブロック</span>のようです。</p>
<div class="alert-box common-icon-box">バージョン1.13で検証したところ、7ブロック上までの移動を確認できました。</div>
<h3><span id="toc8">水平方向への移動範囲</span></h3>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1872" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-800x450.jpg" alt="水平方向への10ブロック移動" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504016.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>水平方向は10ブロック先への移動を確認。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1873" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-800x450.jpg" alt="11ブロックでは移動せず" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504017.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>10ブロックの位置に黄色いガラスを置いて11ブロック目を不透過ブロックにしてみたところ、移動しません。</p>
<p><span class="bold red">水平方向への移動範囲は10ブロック</span>のようです。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1874" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-800x450.jpg" alt="10ブロック先の6ブロック上も移動できる" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504018.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>10ブロック先の6ブロック上にも移動できたので、範囲が球状ということもなさそうです。</p>
<p>以上の結果から、ランダムウォーク範囲は21×21×15ではなく、<span class="bold red">21×21×13</span>で良さそうですね。</p>
<div class="alert-box common-icon-box">バージョン1.13で検証したところ、北西方向に10ブロック、南東方向に9ブロックの移動範囲を確認できました。<br />
ランダムウォーク範囲は<span class="bold red">20×20×14</span>になりそうです。</div>
<h2><span id="toc9">積み上げたブロックは移動先になる</span></h2>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1875" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-800x450.jpg" alt="移動経路がないが会い、最寄りのブロックまで移動" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504019.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>距離10、高さ6の位置に不透過ブロックを並べると移動先と認識して、最寄りのブロック = 真下のガラスブロックまで移動します。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020.jpg"><img loading="lazy" decoding="async" class="alignnone wp-image-1876 size-large" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-800x450.jpg" alt="高さ6の上に不透過ブロックを置いてみる" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504020.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>ではその不透過ブロックの上に1ブロック積み上げて、高さ6と7にしたらどうなるでしょう？</p>
<p>見た目では移動先が&#8221;潰された&#8221;ように見えますが・・・</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1877" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-800x450.jpg" alt="無事、移動" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504021.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>無事、動いてくれました。</p>
<p>このことから、<span class="bold red">移動先の上に不透過ブロックが置かれていても移動先と認識する</span>ことが分かります。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1878" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-800x450.jpg" alt="壁全域が移動先に選ばれる可能性アリ" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504022.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>トラップタワーでありがちな四方を壁で囲む方式では、ランダムウォーク範囲内の壁すべてが移動先に選ばれる可能性があるため注意せねばなりません。</p>
<h2><span id="toc10">移動先は近いが、移動経路が遠い場合</span></h2>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1879" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-800x450.jpg" alt="移動経路が遠い場合" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504023.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>移動先は範囲内にあるが、移動経路が距離が遠いときにどうするか。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1881" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-800x450.jpg" alt="最寄りのブロックで止まる" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504024.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>最寄りのブロックで止まりました。</p>
<p><a href="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025.jpg"><img loading="lazy" decoding="async" class="alignnone size-large wp-image-1883" src="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-800x450.jpg" alt="移動経路を少し近づけると登っていく" width="800" height="450" srcset="https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-800x450.jpg 800w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-300x169.jpg 300w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-500x281.jpg 500w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-768x432.jpg 768w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-120x68.jpg 120w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-160x90.jpg 160w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-320x180.jpg 320w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025-376x212.jpg 376w, https://minecraft-redstone.com/wp-content/uploads/2019/05/ss190504025.jpg 1280w" sizes="(max-width: 800px) 100vw, 800px" /></a></p>
<p>しかし移動経路をランダムウォーク範囲に収まらない程度に近づけた状態で再検証すると登っていきました。</p>
<p>詳しいアルゴリズムは分かりませんけど、<span class="bold red">移動中でも有効な移動経路を探索する</span>・・・とか？</p>
<h2><span id="toc11">まとめ</span></h2>
<div class="blank-box bb-blue">
<ul>
<li>モンスターはプレイヤーとの距離が32ブロック離れてもランダムウォークを行う</li>
<li>透過ブロック（ガラスなど）は移動先として認識されず、下付きハーフブロックは移動経路としても認識されない</li>
<li>ランダムウォークの範囲は21×21×13</li>
<li>ブロック上に不透過ブロックがあっても移動先として認識する</li>
<li>移動中でも有効な移動経路を探索し、見つかればルートを切り替える（？）</li>
</ul>
</div>
<p>ざっくりと検証できました。</p>
<p>トラップタワーを制作する上では、ランダムウォークの範囲が上下7ブロック⇒6ブロックになってるのが意外と大きくて、高さをシビアに設計しないと落下穴に誘導する確率が低下しそうです。</p>
<p>統合版は湧き上限が厳しくてトラップタワーで効率が出しにくいので、得た情報を活かしてできるだけ効率を高めたトラップタワーを作れるよう頑張らねば～。</p>
<p>&nbsp;</p>
<p>以上、ランダムウォーク範囲の検証でした。ではまた！(&#8216;-&#8216;)ノ</p>
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