var pointAX

var pointBX

var speedAX

var speedBX

var pointAY

var pointBY

var speedAY

var speedBY

var pointCX

var pointDX

var speedCX

var speedDX

var pointCY

var pointDY

var speedCY

var speedDY

function setup() {

createCanvas(windowWidth,windowHeight);

strokeWeight(5);

pointAX = random(0, windowWidth);

pointBX = random(0, windowWidth);

pointAY = random(0, windowHeight);

pointBY = random(0, windowHeight);

speedAX = random(-5,5)

speedBX = random(-5,5)

speedAY = random(-5,5)

speedBY = random(-5,5)

pointCX = random(0, windowWidth);

pointDX = random(0, windowWidth);

pointCY = random(0, windowHeight);

pointDY = random(0, windowHeight);

speedCX = random(-5,5)

speedDX = random(-5,5)

speedCY = random(-5,5)

speedDY = random(-5,5)

}

function draw() {

	background(234, 234, 234, 20);

	pointAX = pointAX + speedAX

	pointBX = pointBX + speedBX

	pointCX = pointCX + speedCX

	pointDX = pointDX + speedDX

	pointAY = pointAY + speedAY

	pointBY = pointBY + speedBY

	pointCY = pointCY + speedCY

	pointDY = pointDY + speedDY

	if (pointAX > windowWidth) {

    speedAX = -speedAX;}

	if (pointBX > windowWidth) {

    speedBX = -speedBX;}

	if (pointAY > windowHeight) {

    speedAY = -speedAY;}

	if (pointBY > windowHeight) {

    speedBY = -speedBY;}

	if (pointAX < 0) {

    speedAX = -1 * speedAX;}

	if (pointBX < 0) {

    speedBX = -1 * speedBX;}

	if (pointAY < 0) {

    speedAY = -1 * speedAY;}

	if (pointBY < 0) {

    speedBY = -1 * speedBY;}

	if (pointCX > windowWidth) {

    speedCX = -speedCX;}

	if (pointDX > windowWidth) {

    speedDX = -speedDX;}

	if (pointCY > windowHeight) {

    speedCY = -speedCY;}

	if (pointDY > windowHeight) {

    speedDY = -speedDY;}

	if (pointCX < 0) {

    speedCX = -1 * speedCX;}

	if (pointDX < 0) {

    speedDX = -1 * speedDX;}

	if (pointCY < 0) {

    speedCY = -1 * speedCY;}

	if (pointDY < 0) {

    speedDY = -1 * speedDY;}

	sikaku();

}

function sikaku(){

	 stroke(110, 250, 240);

    line(pointAX, pointAY, pointBX, pointBY)

	stroke(25, 25, 112);

    line(pointAX, pointAY, pointCX, pointCY)

	stroke(127, 255, 212);

    line(pointCX, pointCY, pointDX, pointDY)

	stroke(0, 100, 0);

    line(pointBX, pointBY, pointDX, pointDY) 

}