Project-07-Curves

//Brody Ploeger
//Section C
//jploeger@andrew.cmu.edu
//Project-07


var nPoints = 150
function setup() {
    createCanvas(480, 480);
    background(220);
    //text("p5.js vers 0.9.0 test.", 10, 15);
}

function draw() {
    background(0);

    push();
    translate(width/2,height/2)
    //astroid 1
    stroke('orange')
    noFill()
    astroid(0,0);
    //astroid 2
    stroke('lightblue')
    noFill()
    astroid2(0,0);
    pop();
}

function astroid(x,y,q,w){
    //https://mathworld.wolfram.com/Astroid.html
    var x;
    var y;
    

    var q = map(mouseX,0,width,0,5);
    var a = constrain(mouseX,0,width/2);
    var b = constrain(mouseY,0,height/2);
    var w = constrain(mouseY,0,height);

//shape
    beginShape();
    for (var i = 0; i<nPoints; i++){
        var t = map(i,0,nPoints,0,TWO_PI)
        
        x= a*pow(cos(t*w),3)
        y= b*pow(sin(t*w),3)
        rotate(radians(q))
        vertex(x,y);
    }
    endShape(CLOSE);





}
function astroid2(x,y,q,w){
    //https://mathworld.wolfram.com/Astroid.html
    var x;
    var y;
    

    var q = map(mouseX,0,width,0,5);
    var a = constrain(mouseX,0,width/2);
    var b = constrain(mouseY,0,height/2);
    var w = constrain(mouseX,0,height);

//shape
    beginShape();
    for (var i = 0; i<nPoints; i++){
        var t = map(i,0,nPoints,0,TWO_PI)
        
        x= a*pow(cos(t*w),3)
        y= b*pow(sin(t*w),3)
        rotate(radians(q))
        vertex(x,y);
    }
    endShape(CLOSE);





}