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    ###### tags: `minecraft` <style> * {font-family: 'Terminal','ヒラギノ丸ゴ ProN','Hiragino Maru Gothic ProN',YuGothic,'Yu Gothic','Hiragino Kaku Gothic ProN','ヒラギノ角ゴ ProN W3','Verdana','Arial',sans-serif;} .markdown-body {font-family: 'Terminal','ヒラギノ丸ゴ ProN','Hiragino Maru Gothic ProN',YuGothic,'Yu Gothic','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=wataru yamamoto] # 【第51回】 いろいろな豆腐を作ろう!(2) :::success ## ◆ 今回の目標 - ### 引数をもつ関数を使いこなそう! - ### カラフルな豆腐を作ろう! ::: ## ◆ カラフルな豆腐 高さによって材料が違う、カラフルな豆腐を作ってみよう! ![](https://i.imgur.com/OXZpewP.png) 今回は4種類のブロックを使って豆腐を作るよ :::success ## ◆ 課題1 : 準備をしよう! ::: スロット1からスロット4の材料を使って建築するから、好きな材料を入れよう! 大きな豆腐も作ることができるように、スロット1からスロット4の下のスロットにも同じように材料を入れておこう! ![](https://i.imgur.com/uqwCulq.png) ## ◆ 4種類のブロックを使って建築 今回は前回とちがって4種類のブロックを使って建築するよ! 前回の課題2で作ったmyPlace()関数は1種類のブロックしか置けないから、myPlace()関数を改良して4種類のブロックを置けるようにしよう! 4種類のブロックに対応するためには、<span class="focus">引数を持つ関数</span>が必要になるよ ## ◆ 引数を持つ関数の復習 今までに数字や文字をカッコの中に入れる関数を使ったことがあったよね? これは、関数を実行するときにその関数に必要な数値や文字を設定しているんだ ![](https://i.imgur.com/BbhQM48.png) 関数に数値や文字を入れることを 『値を渡す』 というよ! また、この値のことを 引数(ひきすう) というよ! 関数の名前のあとのカッコの中に変数名を入れることで引数が設定できたよね! ![](https://i.imgur.com/WDiyxQB.png) ## ◆ 引数を持つ関数を使って、4種類のブロックを置く さっきも言ったように、引数はその関数に必要な数値や文字を設定しているんだ 例えば、turtle.select( 数字 )命令では選びたいスロット番号を、print( 文字や数字 )命令では表示したい文字や数字を引数としてカッコの中に書いていたよね ![](https://i.imgur.com/yHTPXpX.png) 今回はブロックを置くときに、どのスロットのブロックを置くかを表す<span class="focus">スロット番号</span>を引数としてカッコの中に書けるにしよう! :::success ## ◆ 課題2 : 4種類のブロックを置く関数をつくろう! ::: 前回の課題2のmyPlace()関数を改良するよ 引数を使って、引数のスロット番号にあるブロックを置く myPlace4( スロット番号 )関数を作ろう ![](https://i.imgur.com/iC4qMcm.png) :::warning ## 注意 myPlace()関数と同じように、スロットのブロックがなくなったら同じブロックがあるスロットに移動するようにしよう 今回はmyPlace()関数とちがって、次のスロットではなくて<span class="focus">4つ先のスロット</span>に同じブロックがあるので、ブロックがなくなったら<span class="focus">4つ先のスロット</span>に移動するようにしてあげよう! ::: :::success ## ◆ 課題3 : 課題2の関数を使ってみよう! ::: 課題2で作ったmyPlace4( スロット番号 )関数を実際に使ってみよう カッコの中の数字のスロット番号のブロックを置くことができたかな? ![](https://i.imgur.com/nwAWbpd.png) :::success ## ◆ 課題4 : カラフルな豆腐を建築しよう! ::: 課題2のmyPlace4( スロット番号 )関数を使って、縦の長さ4,横の長さ4,高さ4のカラフルな豆腐を建築しよう! - 1段目:スロット1のブロック - 2段目:スロット2のブロック - 3段目:スロット3のブロック - 4段目:スロット4のブロック になるようにうまくmyPlace4( スロット番号 )関数を使おう! ![](https://i.imgur.com/OYaZX9j.jpg) 天井は自由にうめてね! :::info ## ヒント - 1段目:スロット1のブロック - 2段目:スロット2のブロック - 3段目:スロット3のブロック - 4段目:スロット4のブロック ブロックを置くときの<span class="focus">高さ</span>と<span class="focus">スロット番号</span>が同じになっているよね つまり、myPlace4( スロット番号 )関数を使うときに、<span class="focus">現在の高さを表す変数</span>を引数として渡してあげればいいね 現在の高さを表す変数は、<span class="focus">高さの回数だけループするfor文のループカウンタ</span>(”i”など)がそのまま使えるよ! ::: ![](https://i.imgur.com/jrh4xpQ.png) ## ◆ できたかな? カラフルな豆腐を建築することができたかな? 豆腐を作る手順はいろいろな種類があるけど、課題4のヒントのように高さの回数だけループするfor文のループカウンタを引数として渡してあげることで、どの手順で豆腐を作ってもうまくいくはずだよ!

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