Processing入門 Java編3: レスポンス

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

新・Java入門編12: 条件分岐を理解しよう
https://paiza.jp/works/java/new-primer/java-new-primer-12

新・Java入門編22: クラスについて学習しよう - メソッドとは
https://paiza.jp/works/java/new-primer/java-new-primer-22/89102

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

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

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

mousePressed()
https://processing.org/reference/mousePressed_.html

circle()
https://processing.org/reference/circle_.html

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

void draw() {
}

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

void draw() {
}

void mousePressed() {
  if (mousePressed) {
    if (mouseButton == LEFT) {
      circle(mouseX, mouseY, 50);
    } else if (mouseButton == RIGHT) {
      circle(mouseX, mouseY, 20);
    }
  }
}