Project – 07

var n = 50 //number of cusps
var angleRan1 = 0 //rotation of pink flower
var angleRan2 = 0 //rotation of yellow flower

function setup() {
    createCanvas(480, 480);
    background(220);
    frameRate(20);
}

function draw() {
	background(31, 45, 97); // night sky
	translate(width/2, height/2);
	//moon
	push();
    noStroke();
    fill(255);
    circle(-100, -150, 100);
    fill(31, 45, 97);
    circle(-75, -150, 100);
    pop(); 
	stroke(255);
	strokeWeight(5);
	push(); // rotate ranunculoid
	rotate(radians(angleRan1));
    angleRan1 += mouseY;
	drawRanun1();
	pop();
	push();
	rotate(radians(angleRan2));
	angleRan2 += mouseY + 90
	drawRanun2();
	pop();
	if (mouseX >= 100) {
		noStroke();
		fill(129, 191, 54);
		circle(0, 0, 30);
		//sun
		fill(240, 213, 36);
		circle(-200, -200, 200)
	}
}

//Ranunculoid Curve
function drawRanun1 () {
    //x = a[6cost-cos(6t)] y=a[6sint - sin (6t)] <- parametric equations
    var aRan1 = mouseX/50
    if (aRan1 <= 2) {
    	fill(251, 252, 182); //yellow when it is a star shape
    }else {
    	background(130, 201, 255); // day time
    	fill(252, 182, 203); //pink when its a flower shape
    }
    //curve
    beginShape();
    for(var i = 0; i < n; i += 0.1){
    	var xRan1 = aRan1 * (6 * cos(i) - cos(6 * i));
    	var yRan1 = aRan1 * (6 * sin(i) - sin(6 * i));
    	vertex(xRan1, yRan1);
    }
    endShape();
}
//inner flower
function drawRanun2 () {
	strokeWeight(5);
	fill(245, 226, 100);
	var aRan2 = mouseX/100
	if (aRan2 < 2) {
		stroke(255);
	} else {
		stroke(250, 175, 137);
	}
	//curve
	beginShape();
	for(var i = 0; i < n; i += 0.1) {
		var xRan2 = aRan2 * (6 * cos(i) - cos(6 * i));
    	var yRan2 = aRan2 * (6 * sin(i) - sin(6 * i));
    	vertex(xRan2, yRan2);
	}
	endShape();
}