tomasos

;; Tomas Osland
;; [email protected]
;; @tomasosland

;; Welcome to this presentation about functional music. In this lightning talk we
;; will construct a drum machine and make som beats, play the piano, and experiment with synthesizers.


;; Start overtone.cid
(ns overtone.examples.timing.one-bar-sequencer

tomasos

function generateGrid() {
  console.time('generate grid');
  var grid = [];

  for(var i = 0; i < 10; i++) {
    grid[i] = [];
    for(var j = 0; j < 10; j++){
      grid[i][j] = {color: 'white'};
    }
  }

tomasos

function exists(prev, num) {
    return prev.indexOf(num) > -1;
}

function primeNumber(number, prev) {
    var res = true;

    for(var i = 2; i < Math.sqrt(number); i++) {
        if((number % i) == 0) {
            return false;

tomasos

function palindrome(number) {
    n = number;
    rev = 0;

    while (number > 0)
    {
      dig = number % 10;
      rev = rev * 10 + dig;
      number = Math.floor(number / 10);
    }

tomasos

;; calc hours worked
(defun time-to-decimal (time)
  (+ (floor time) (/ (* 100 (- time (floor time))) 60)))

(defun calc-hours-worked ()
  (interactive)
  (setq line (buffer-substring-no-properties (line-beginning-position) (line-end-position)))
  (string-match "[0-9]\\{2\\}\.[0-9]\\{2\\}" line)
  (setq start (string-to-number (match-string 0 line)))
  (string-match "[0-9]\\{2\\}\.[0-9]\\{2\\}" line 5)