drawing video tool1

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/* espiral en movimiento, con retroceso */

ball bola;

void setup() {

 smooth();

 size(500, 500);

background(0);

 bola = new ball();

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}

void draw() {

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 noStroke();

// rect(width/2,height/2,width,height);

bola.move();

bola.display();

 //ball settings

}

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 class ball{

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 color a;

 color b;

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 // a polar coordinate

float r; // radius value

float theta;

float speed;

float x1;

float y1;

float xp;

float yp;

float ran;

ball() {

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 b= color (218,222,25);

 a= color (5,240,226);

 r = 10; // radius value

 theta = 1;

 speed = 2;

 x1 = 10;

 y1 = 10;

 xp = r*cos(theta)/20; //add random values to jitter

 yp = r* sin (theta)/20;

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}

void display(){

 strokeWeight(2);

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noFill ();

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if (mousePressed==true) {

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 float ran = random(1,100); 

stroke(b,50); 

ellipse(mouseX +xp,mouseY + yp, 35+r, 35+r);

stroke(a,50);

ellipse(mouseX +xp*-1,mouseY + yp*-1, 35+r, 35+r);

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noStroke();

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fill(a,20);

ellipse(mouseX +xp*-1,mouseY + yp*-1, ran+r, ran+r);

fill(b,20); 

ellipse(mouseX +xp,mouseY + yp, ran+r, ran+r);

}

}

void move(){

theta=theta+.1;

r= r+2;

 xp = r*cos(theta);

 yp= r* sin (theta);

if (xp > 400 ) {

xp = 0;

yp=0;

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}

while (r == 20) {

theta =theta *-.1;

r = r*-1;

}

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}

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 } 

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