Processing入門 Java編3: レスポンス

色の設定 - background()、colorMode()、stroke()、fill()
https://paiza.jp/works/processing-java/primer/processing-java-primer-2/156007

メソッドとは
https://paiza.jp/works/java/new-primer/java-new-primer-22/89102

新・Java入門編6: 変数を学習しよう
https://paiza.jp/works/java/new-primer/java-new-primer-6

新・Java入門編21: 参照型とプリミティブ型について学習しよう
https://paiza.jp/works/java/new-primer/java-new-primer-21

draw()
https://processing.org/reference/draw_.html

setup()
https://processing.org/reference/setup_.html

colorMode()
https://processing.org/reference/colorMode_.html

size()
https://processing.org/reference/size_.html

mouseX
https://processing.org/reference/mouseX.html

mouseY
https://processing.org/reference/mouseY.html

pmouseX
https://processing.org/reference/pmouseX.html

pmouseY
https://processing.org/reference/pmouseY.html

dist()
https://processing.org/reference/dist_.html

circle()
https://processing.org/reference/circle_.html
https://sandbox.paiza.jp/works/processing-java/primer/processing-java-primer-2/156005

void setup() {
  size(720, 480);
  colorMode(HSB, 360, 100, 100);
}

void draw() {
}

void setup() {
  size(720, 480);
  colorMode(HSB, 360, 100, 100);
}

void draw() {
  float d = dist(pmouseX, pmouseY, mouseX, mouseY);
  circle(mouseX, mouseY, d);
}