var posW = 0;
var posH = 0;
var posVW;
var posVH;
var posAW;
var posAH;
var numY = 50;
var intervalH;
var posAWOffset, posAHOffset;
var stColor;
function setup() {
createCanvas(windowWidth, windowHeight);
mousePressed();
}
function mousePressed() {
background(255);
initialize();
}
function initialize() {
posW = 0;
posVW = 5;
posAW = random(-1, 1);
posH = random(height);
posAH = random(-1, 1);
posVH = 0;
numY = int(random(20, 30));
intervalH = random(2, 6);
posAWOffset = random(10000);
posAHOffset = random(10000);
stColor = [
color(106, 129, 139),
color(127, 165, 155),
color(74, 87, 75),
][int(random(3))];
stroke(stColor);
}
function draw() {
var nposW = posW + posVW;
var nposH = posH + posVH;
for (var y = 0; y < numY; y++) {
var h = posH + ((y + 1) - numY / 2) * intervalH;
var nh = nposH + ((y + 1) - numY / 2) * intervalH;
line(posW, h, nposW, nh);
}
posAW = map(noise(frameCount * 0.03 + posAWOffset), 0, 1, -0.2, 0.3);
posAH = map(noise(frameCount * 0.02 + posAHOffset), 0, 1, -0.1, 0.1);
posVW += posAW;
posVW = constrain(posVW, -5, 5);
posVH += posAH;
posVH = constrain(posVH, -2, 2);
posW = nposW;
posH = nposH;
if (posW < 0 || posW > width || posH + (0 - numY / 2) * intervalH > height || posH + (numY - numY / 2) * intervalH < 0) {
initialize();
}
}