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var ps = [];
var gravity;
var wid = 800;
var hei = 600;
function setup() {
createCanvas(wid, hei);
colorMode(HSL);
gravity = createVector(0, 5);
}
function draw() {
background(0);
for(var i = ps.length - 1; i >= 0; i--) {
ps[i].applyForce(gravity);
ps[i].update();
stroke(ps[i].colour);
strokeWeight(ps[i].mass);
ps[i].show();
if (ps[i].gone()) {
ps.splice(i, 1);
}
}
if (mouseIsPressed) {
var p = new Particle(
mouseX, mouseY, random(2, 8),
color(random(0, 360), random(90, 100), random(50, 100))
);
p.applyForce(createVector(random(-40, 40), random(-150, 0)));
ps.push(p);
}
}
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