Author: olf@andrew.cmu.edu

finalproject

//Owen Fox
//Final project
//olf@andrew.cmu.edu
//Section C

var squares = [];
var moveSquares = [];
var sounds = [];
var noteC;
var noteD;
var noteE;
var noteF;
var noteG;
var noteA;
var noteB;
var noteHC;
var forward = 0;

function preload() {
    //C5 scale
    noteC = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/C.wav");
    noteD = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/D.wav");
    noteE = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/E.wav");
    noteF = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/F.wav");
    noteG = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/G.wav");
    noteA = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/A.wav");
    noteB = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/B.wav");
    noteHC = loadSound("https://courses.ideate.cmu.edu/15-104/f2016/wp-content/uploads/2016/12/highc.wav");
}

function setup() {
    createCanvas(480, 480);
    background("red");
    frameRate(4);
    sounds = [noteC,noteD,noteE,noteF,noteG,noteA,noteB,noteHC];
    //fills an array of each individual square and gives each a sound from C to high c
    for (var x = 0; x < 8; x ++) {
        for (var y = 0; y < 8; y ++) {
            squares.push(Square(width/10 * x + width/10, height/10 * y + height/10, width/10, height/10,sounds[y]));
        }
    }

    //fills an array of each moving square
    for (var i = 0; i < 8; i ++) {
        moveSquares.push(MoveSquare(width/10,height/10 * i + height/10, width/10, height/10));

    }
}



function draw() {

    //draws each individual square
    for (var i = 0; i < squares.length; i ++) {
        squares[i].drawS();
    }

    //draws each moving square, and pushes them forward every frame
    for (var i = 0; i < moveSquares.length; i ++) {
         moveSquares[i].x = forward + (width/10);
         if((moveSquares[i].x)/(width/10) >= 9) {
            moveSquares[i].x = width/10;
         }
         moveSquares[i].drawMS();
         }

    //draws containing grid
    for(var i = 0; i < 9; i ++) {
      strokeWeight(8);
      stroke("white");
      line(width/10 * i + width/10,height/10,width/10 * i + width/10,height- height/10);
      line(width/10,height/10 * i + height/10,width - width/10,height/10 * i + height/10);
    }

    //if the x position of the moving squares is the same as a pink square that has been clicked on, a sound plays
    for(var w = 0; w < squares.length; w ++) {
        if((squares[w].x == forward) & (squares[w].on == true)) {
            squares[w].play();
        }
    }
    //increases forward variable, which controls moving square postion
    forward += width/10;
    if ((forward/(width/10)) >= 8) {
        forward = 0;
    }
}

function mousePressed() {
    for(var i = 0; i < squares.length; i ++) {
        squares[i].squareS();
    }
}

function Square(squareX,squareY,squareW,squareH,sound) {
    var square = {
    x: squareX,
    y: squareY,
    w: squareW,
    h: squareH,
    color: "lightPink",
    drawS: drawSquare,
    squareS: squareState,
    on: false,
    s: sound,
    play: soundPlay
    };
    return square
}

function drawSquare() {
    fill(this.color);
    rect(this.x,this.y,this.w,this.h);
}

//when the user clicks on a square, that square is set to "on"
function squareState() {
    println("mouse pressed");
        if((mouseX > this.x) & (mouseX < (this.x + this.w)) && (mouseY > this.y) && (mouseY < (this.y + this.h))) {
            this.color = "red";
            this.on = true;
        }
}

function MoveSquare(soundX,soundY,soundW,soundH) {
    var moveSquare = {
    x: soundX,
    y: soundY,
    w: soundW,
    h: soundH,
    drawMS: drawmoveSquare,
    };
    return moveSquare
}

function soundPlay() {
    this.s.play();
}

function drawmoveSquare() {
    fill("lightBlue");
    rect(this.x,this.y,this.w,this.h);
}

For my final project, I made a sequencer. To use: click on a pink square, and as the blue bar passes over it, it will play a note. From top to bottom, each row of the sequencer plays one note of a C5 scale.