derwind https://blog.hatena.ne.jp/derwind/ らんだむな記憶 https://randommemory.hatenablog.com/ Game graphics Minecraftで円形を作りたいとかいうことで、rubyで書いてみたが。 #! /usr/bin/ruby -Ku class CircleRenderer def initialize(radius) @radius = radius end def render center_x = @radius center_y = @radius adjust = 0.3 # 厳密な計算だとちょっと不恰好なので補正。 0.upto(@radius * 2 + 1 - 1).each { |x| 0.upto(@radius * 2 + 1 - 1).each { |y| if (x - cente… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2015%2F07%2F12%2F001813" title="ブロックで描く円 - らんだむな記憶" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2015-07-12 00:18:13 rich https://randommemory.hatenablog.com/entry/2015/07/12/001813 1.0 100%