JavaScript Coding

Argo I.O

tab1

var blob;

var blobs = [];

var zoom = 1;

function setup() {

createCanvas(600, 600);

blob = new Blob(0, 0, 64);

for (var i = 0; i < 200; i++) {

var x = random(-width,width);

var y = random(-height,height);

blobs[i] = new Blob(x, y, 16);

}

}

function draw() {

background(0);

translate(width/2, height/2);

var newzoom = 64 / blob.r;

zoom = lerp(zoom, newzoom, 0.1);

scale(zoom);

translate(-blob.pos.x, -blob.pos.y);

for (var i = blobs.length-1; i >=0; i--) {

blobs[i].show();

if (blob.eats(blobs[i])) {

blobs.splice(i, 1);

}

}

blob.show();

blob.update();

}

tab2

function Blob(x, y, r) {

this.pos = createVector(x, y);

this.r = r;

this.vel = createVector(0,0);

this.update = function() {

var newvel = createVector(mouseX-width/2, mouseY-height/2);

newvel.setMag(3);

this.vel.lerp(newvel, 0.2);

this.pos.add(this.vel);

}

this.eats = function(other) {

var d = p5.Vector.dist(this.pos, other.pos);

if (d < this.r + other.r) {

var sum = PI * this.r * this.r + PI * other.r * other.r;

this.r = sqrt(sum / PI);

//this.r += other.r;

return true;

} else {

return false;

}

}

this.show = function() {

fill(255);

ellipse(this.pos.x, this.pos.y, this.r*2, this.r*2);

}

}