let drawLines = []; let moveRects = []; let size = 500; function setup() { createCanvas(windowWidth, windowHeight); newForm(); rectMode(CENTER); background(255); } function draw() { for (let i = 0; i < drawLines.length; i++) { drawLines[i].run(); if (drawLines[i].isDead()) { drawLines.splice(i, 1); } } if (drawLines.length == 0) { background(255); for (let i = 0; i < moveRects.length; i++) { moveRects[i].run(); } } if (frameCount % (60*8) == 0) { newForm(); } } function divideRect(x, y, w, h, min) { if (w + h > min) { if (w >= h) { let rndW = random(1) * w; // line(x+rndW, y, x+rndW, y+h); drawLines.push(new DrawLine(x + rndW, y, x + rndW, y + h)); divideRect(x, y, rndW, h, min); divideRect(x + rndW, y, w - rndW, h, min); } else { let rndH = random(1) * h; // line(x, y+rndH, x+w, y+rndH); drawLines.push(new DrawLine(x, y + rndH, x + w, y + rndH)); divideRect(x, y, w, rndH, min); divideRect(x, y + rndH, w, h - rndH, min); } recCount++; } else { //rect(x, y, w, h); moveRects.push(new MoveRect(x + w / 2, y + h / 2, w, h)); } } function newForm() { moveRects.length = 0; let x = (width - size) / 2; let y = (height - size) / 2; recCount = 0; divideRect(x, y, size, size, 190); drawLines.push(new DrawLine(x, y, x+size, y)); drawLines.push(new DrawLine(x, y+size, x+size, y+size)); drawLines.push(new DrawLine(x, y+size, x, y)); drawLines.push(new DrawLine(x+size, y+size, x+size, y)); } function easeInOutCubic(t, b, c, d) { if ((t /= d / 2) < 1) return c / 2 * t * t * t + b; return c / 2 * ((t -= 2) * t * t + 2) + b; } //--------------------------------------------------- class DrawLine { constructor(x1, y1, x2, y2) { this.pos1 = createVector(x1, y1); this.pos2 = this.pos1; this.tgtPos = createVector(x2, y2); this.rnd = random(1); this.t = int(-random(200)); this.end = 200 + this.t + 50; if (this.rnd < 0.5) { this.pos1 = createVector(x2, y2); this.pos2 = this.pos1; this.tgtPos = createVector(x1, y1); } } show() { stroke(0); strokeWeight(0.5); if (this.t > 0) { line(this.pos1.x, this.pos1.y, this.pos2.x, this.pos2.y); } } move() { let t0 = 0; let t1 = 40; if (t0 < this.t && this.t < t1) { this.pos2 = p5.Vector.lerp(this.pos1, this.tgtPos, this.easing(t0, t1 - 1)); } this.t++; } run() { this.show(); this.move(); } isDead() { if (this.t > this.end) { return true; } return false; } easing(start, end) { let amt1 = map(this.t, start, end, 0, 1); return easeInOutCubic(amt1, 0, 1, 1); } } //--------------------------------------------------------- class MoveRect { constructor(x, y, w, h) { this.pos0 = createVector(x, y); this.pos = this.pos0; this.center = createVector(width / 2, height / 2); this.vec1 = p5.Vector.sub(this.pos0, this.center); this.vec2 = p5.Vector.mult(this.vec1, 1.3); this.pos1 = p5.Vector.add(this.center, this.vec2); this.w = w; this.h = h; this.sttW = w; this.sttH = h; this.t = 0; this.fCol = 255; this.sCol = 0; } show() { stroke(this.sCol); strokeWeight(0.5); fill(this.fCol); rect(this.pos.x, this.pos.y, this.w, this.h); } move() { let t0 = 0; let t1 = 50 + t0; let t2 = 60 + t1; let t3 = 50 + t2; let t4 = 60 + t3; if (t0 < this.t && this.t < t1) { this.pos = p5.Vector.lerp(this.pos0, this.pos1, this.easing(t0, t1 - 1)); } if (t1 < this.t && this.t < t2) { this.fCol = lerp(255, 0, this.easing(t1, t2 - 1)); } if (t2 < this.t && this.t < t3) { this.pos = p5.Vector.lerp(this.pos1, this.pos0, this.easing(t2, t3 - 1)); } if (t3 < this.t && this.t < t4) { this.fCol = lerp(0, 255, this.easing(t3, t4 - 1)); this.sCol = lerp(0, 255, this.easing(t3, t4 - 1)); } this.t++; } run() { this.show(); this.move(); } easing(start, end) { let amt1 = map(this.t, start, end, 0, 1); return easeInOutCubic(amt1, 0, 1, 1); } }

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