Read the Make a drum machine – Result sketch code.
In line 11, it seems to have two arrays in one array called “cells”: let cells = [
[0, 0, 0, 1], //cells[0] holds the snare pattern
[1, 1, 1, 0] //cells[1] holds the kick pattern
];
Then by using function playbeat(time), the lightened cells (cells[1]) will follow the instruction to play related sounds. These lightened cells will be detected exactly following the beat set before. function playBeat(time) {
// Make sure the sound files have been completely loaded
if (kit.loaded) {
let beat = Tone.Transport.position.split(":")[1];if (cells[0][beat] ==1) {
kit.player("snare").start(time);
}
if (cells[1][beat] == 1) {
kit.player("kick").start(time);
}
}
}
Starting form the Make it interactive – Result code: Here’s my sketch 3.
I changed my patterns to some purple active circles but this sketch is still using the same 2-d array with previous ones ( only the initial status is changed). var cells = [
[0, 1, 0, 1], //cells[0] holds the snare pattern
[1, 0, 1, 0] //cells[1] holds the kick pattern
];
