Sarah Yae Project 7 Section B

//Sarah Yae
//smyae@andrew.cmu.edu
//Section B
//Project 7

var nPoints = 500; 
var sizeHeart = 150; 

function setup() {
    createCanvas(400, 400);
}

function draw() {
      background(220);
      drawHeartCurve();
}

function drawHeartCurve() {
    var t; //Theta 
    var x; 
    var y;

// Conditional to determine color of curve 
    if (mouseX > width / 2) {
        fill ('Salmon');
    }
    else {
        fill (148,141,179);
    }

// Draw the curve 
// Heart formula used: 
// x = 16 * sin^3(t)
// y = 13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t)

    beginShape();
    for (var i = 0; i < nPoints; i++) {
        // Conversion of "i" into radians 
        var t = map(i, 0, nPoints, 0, TWO_PI); 
        // Moving the mouse horizontally controls how many curves are drawn 
        var x = (width / 2) + sizeHeart * sin(t * mouseX / 20) * sin(t) * sin(t);
        // Moving the mouse vertically controls how squiggly the lines get 
        var y = (height / 2) + sizeHeart * (cos(t)) - (cos(2 * t)) - (cos(3 * t * mouseY / 10)) - (cos(4 * t));
        vertex (x,y);
        }
        endShape(CLOSE); 
}