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P5.js 日本語リファレンス(randomSeed)

Last updated at Posted at 2020-05-24

このページでは[「P5.js 日本語リファレンス」] (https://qiita.com/bit0101/items/91818244dc26c767a0fe) の randomSeed関数を説明します。

randomSeed()

説明文

random() のシード値を設定します。

random() のシード値を設定します。デフォルトでは、プログラムが実行されるたびに random() は異なる結果を生成します。実行するたびに同じ結果を生成するには seed に定数を設定します。

構文

randomSeed(seed)

パラメタ

  • seed
    Number:シード値

例1

// 実行する度に同じ動きになります。
let xoff = 0.0;

function setup() {
  createCanvas(200, 200);
  randomSeed(15);
}

function draw() {
  background(204);
  xoff = xoff + 0.01;
  let n = random(xoff) * width;
  line(n, 0, n, height);
}

実行結果

著作権

p5.js was created by Lauren McCarthy and is developed by a community of collaborators, with support from the Processing Foundation and NYU ITP. Identity and graphic design by Jerel Johnson.

ライセンス

Creative Commons(CC BY-NC-SA 4.0) に従います。

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