----- Coding Tutorial by Patt Vira ----- 

Name: Rainbow Pendulum Waves

Video Tutorial: https://youtu.be/WeSytBEVtL8

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Connect with Patt: @pattvira

https://www.pattvira.com/

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*/

​

let rainbows = []; let num = 29;

let r_mult = 10; let r0 = 30;

let period = 2000; let freq0 = 10;

​

let midiNotes = [108, 107, 105, 103, 101, 100, 98,

                 96, 95, 93, 91, 89, 88, 86, 

                 84, 83, 81, 79, 77, 76, 74, 

                 72, 71, 69, 67, 65, 64, 62, 60];

​

function setup() {

  createCanvas(700, 400);

  angleMode(DEGREES);

  colorMode(HSB);

  for (let i=0; i<num; i++) {

    let r = r0 + (num - i) * r_mult;

    let h = 200 + 100/num * i;

    let note = midiNotes[i];

    rainbows[i] = new Rainbow(i + freq0, r, h, note); 

  }

}

​

function draw() {

  background(240, 150, 30);

  translate(width/2, height);

  for (let i=0; i<num; i++) {

    rainbows[i].update();

    rainbows[i].display(); 

  }

}