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    ###### tags: `minecraft` <style> * {font-family: 'Hiragino Kaku Gothic ProN','ヒラギノ角ゴ ProN W3','Verdana','Arial',sans-serif;} .markdown-body {font-family: 'Hiragino Kaku Gothic ProN','ヒラギノ角ゴ ProN W3','Verdana','Arial',sans-serif;} h2 {padding-top: 50px;} img {margin: 20px auto;} .alert-success {margin-top: 50px;} .alert h2 {padding-top: 0px;} .part {letter-spacing: .1rem;} .markdown-body h3 {margin-top: 12px;margin-bottom: 12px;} .markdown-body p {font-size: 1.25em;margin-top: 12px; margin-bottom: 16px;} .markdown-body li {font-size: 1.25em;} .markdown-body pre {font-size: 20px;} .focus {color: red;font-weight: bold;} .link-box {display: flex;justify-content: space-between; margin-top: 50px;margin-bottom: 50px;} a.link {display: block; width: 50%; padding: 10px 15px; text-align: center; color: #fff; font-weight: bold; font-size: 20px; letter-spacing: .1em; text-decoration: none;} a.link:hover {opacity: 0.85;} a.prev {background: linear-gradient(to bottom, #1A7BBD 0%, #1A7BBD 50%, #125684 51%, #125684 100%); border-radius: 10px 0 0 10px;} a.next {background: linear-gradient(to bottom, #D76820 0%, #D76820 50%, #964816 51%, #964816 100%); border-radius: 0 10px 10px 0;} </style> > [name=shinya kunisada] # 【第2回】 燃料を自由に入れられるようになろう ## ◆ おさらい 今回の目標の前に、<span class="focus">対話画面</span>と<span class="focus">エディタ画面</span>についておさらいしよう! ## ◆ 対話画面 この画面が、タートルと話す画面だよ! 文字を打つことで話すことができるんだ! 画面の左端に <span class="focus">></span>の記号があるのが目印だね! この画面のことを<span class="focus">対話(たいわ)画面</span>というよ! ![](https://i.imgur.com/TTYp0rr.png) ## ◆ エディタ画面 プログラムは対話画面とはちがった画面で書かないといけないんだ。 対話画面ではプログラムはかけないんだよ! プログラムを書くための画面のことを<span class="focus">エディタ画面</span>というよ! <span class="focus">エディタ画面</span>$\downarrow$$\downarrow$$\downarrow$ ![](https://i.imgur.com/lIK7W58.png) ## ◆ プログラムを編集するコマンド プログラムを書くにはまず、<span class="focus">エディタ画面</span>に移動しよう。 エディタ画面に移動するには<span class="focus">editコマンド</span>を使うよ! ``` > edit <プログラムの名前> ``` とすると、<プログラムの名前>で動かせるプログラムができるよ! ## ◆ editコマンドの動き editコマンドを使うと、 <span class="focus">・その名前のプログラムがなければ、新しいプログラムファイルを作るよ!</span> <span class="focus">・すでにその名前のプログラムがあれば、それを編集するよ!</span> ## ◆ 気をつけよう <span class="focus">対話画面</span>と<span class="focus">エディタ画面</span>は違うから、間違えないように気をつけよう! :::success ## ◆ 今回の目標 - ### もっと<span class="focus">自由に燃料を入れる</span>ことができるようにしよう! ::: ## ◆ タートルに数を覚えさせる スロット番号がすぐわかるように、タートルに<span class="focus">スロット番号を覚えさせたい</span> ![](https://i.imgur.com/r9SPYmX.png) ## ◆ 数字の入る箱 そこで、<span class="focus">数字が入る名前がついた箱</span>をイメージしてみよう。 例えば<span class="focus">kazu</span>っていう名前の箱 ![](https://i.imgur.com/irza0OR.png) ## ◆ 箱の中の数は変えられる 入っている数は<span class="focus">自由に変えることができる</span>としよう ![](https://i.imgur.com/VhRBD0I.png) ## ◆ プログラムで書くと... 数字を箱に入れるイメージをプログラムで書くと、次のようになるよ! ```lua= kazu = 10 ``` ![](https://i.imgur.com/AOVldSo.png) ## ◆ 変数 この<span class="focus">kazu</span>のような箱のことを<span class="focus">変数</span>というんだよ! 変数には自由に数を入れることができるんだ! <span class="focus">=(イコール)</span>を使うと、変数に値を<span class="focus">代入する(入れるっていうこと)</span>という意味を表すんだ! 算数や数学で使う=(イコール)とは意味が違うから注意してね! ![](https://i.imgur.com/UrwVo1O.png) ## ◆ 変数の名前 変数の名前は、君が自由につけていいんだ。 ただし、<span class="focus">頭文字は数字じゃダメ</span>だからね! ![](https://i.imgur.com/tpTsl6X.png) ## ◆ 変数を使う 変数は、例えば<span class="focus">スロットの番号</span>や<span class="focus">燃料の数</span>を入れておくことができるよ。 ```lua= # 変数を使わない場合 turtle.select(11) # 変数を使う場合 slot = 11 turtle.select(slot) ``` ## ◆ 変数を使ってプログラミングしよう! それじゃあ、さっそく<span class="focus">変数</span>を使ってプログラミングしていくよ! ## ◆ 課題1 変数を使ってアイテムスロットを選ぼう 変数を使って、アイテムスロットを選べるようにしよう! スロットを選ぶ命令は<span class="focus">turtle.select(スロット番号)</span>だよ! ## ◆ 課題2 変数を使って燃料の量を選ぼう 変数を使って、燃料に入れる量を選べるようにしよう! 燃料を入れる命令は<span class="focus">turtle.refuel(個数)</span>だよ! ## ◆ 課題3 組み合わせてみよう 課題1と課題2を組み合わせてみよう! <span class="focus">変数2つを使って</span>スロットの番号と燃料に入れる量をそれぞれ選べるようにしよう! <!-- <div class="link-box"> <a href="#" class="link prev">◀︎ 前の内容に戻る</a> <a href="#" class="link next">次の内容に進む ▶︎</a> </div> -->

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