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

Name: Pendulum Waves

Video Tutorial: https://youtu.be/rKtLBr3v_0g

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Connect with Patt: @pattvira

https://www.pattvira.com/

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*/

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let gravity = 1; let lengthMult = 30000000;

let pendulums = []; let num = 15; let freq0 = 51;

let c = ["#0077b6","#0096c7","#00b4d8","#48cae4"];

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let midiNotes = [91, 88, 84, 

                 79, 76, 72, 

                 67, 64, 60, 

                 55, 52, 48, 

                 43, 40, 36];

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function setup() {

  createCanvas(600, 400);

  for (let i=0; i<num; i++) {

    let period = 1/(freq0 + i);

    let length = gravity * pow((period / TWO_PI), 2) * lengthMult;

    let s = 5 + (i*1);

    pendulums[i] = new Pendulum(length, c[i % c.length], s, midiNotes[i % midiNotes.length]);

  }

}

​

function draw() {

  background(0);

  translate(width/2, 0);

  for (let i=0; i<num; i++) {

    pendulums[i].update();

    pendulums[i].display();

  }

}