20250405

/***********************************

 * dailycoding - 20250405 / graphic

 * by E.C.H (Eiichi Ishii)

 ***********************************/

​

let w, g, bg;

​

function setup() {

  w = min(windowWidth, windowHeight);

  createCanvas(w, w);

  angleMode(DEGREES);

  rectMode(CENTER);

  strokeCap(PROJECT);

  noLoop();

​

  g = w / 5;

  bg = g / 20;

}

​

function draw() {

  background(255);

​

  for (let x = g / 2; x <= w; x += g) {

    for (let y = g / 2; y <= w; y += g) {

      push();

      translate(x, y);

      rotate(random(360));

      stroke(0);

​

      let v = random([10, 20]);

      let sg = g / v;

​

      for (let lx = -g / 2; lx <= g / 2; lx += sg) {

        let lr = map(lx, -g / 2, g / 2, sg / 10, sg);

        strokeWeight(lr);

        line(

          lx + random(-lr / 2, lr / 2),

          random(-g / 2),

          lx + random(-lr / 2, lr / 2),

          random(g / 2)

        );

      }

      pop();

    }

  }

​

  noStroke();

  for (let bx = bg / 2; bx <= w; bx += bg) {

    for (let by = bg / 2; by <= w; by += bg) {

      let bc = get(bx, by);

      fill(bc);

      if (int(random(3)) !== 0) {

        rect(bx, by, bg + 1, bg + 1);

      }

    }

  }

  let rw = w/10;

  rakkan(rw/2.5, w-rw/1.25, rw, 0);

}

​

function rakkan(posx, posy, r, csw) {

  push();

  randomSeed(8751);

  translate(posx, posy);

  rectMode(CENTER);

  let nr = r / 2.5;

  let lr = r / 20;

​

  if (csw == 0) {

    fill("#e2041b");

    noStroke();

  } else if (csw == 1) {

    noFill();

    stroke("#e2041b");

    strokeWeight(lr / 4);

  }

​

  rect(0, 0, r / 1.4, r * 1.5, r / 5);

​

  if (csw == 0) {

    stroke(255);

  } else if (csw == 1) {

    fill(255);

    stroke("#e2041b");

  }

  strokeWeight(lr / 1.5);

  noFill();

​

  for (let i = 0; i < 10; i++) {

    let z = random(lr / 20, lr / 2);

    push();

    push();

    translate(0, -nr);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(random(-z, z), nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(nr / 2 + random(-z, z), random(-z, z));

    endShape();

    pop();

​

    push();

    translate(0, 0);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(random(-z, z), nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    strokeWeight(lr / 3);

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

    pop();

​

    push();

    translate(0, nr);

    beginShape();

    vertex(-nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

​

    beginShape();

    vertex(-nr / 2 + random(-z, z), random(-z, z));

    vertex(nr / 2 + random(-z, z), random(-z, z));

    endShape();

​

    strokeWeight(lr / 3);

​

    beginShape();

    vertex(nr / 2 + random(-z, z), -nr / 2 + random(-z, z));

    vertex(-nr / 2 + random(-z, z), nr / 2 + random(-z, z));

    endShape();

    pop();

    pop();

  }

  pop();

}

​

function keyPressed() {

  redraw();

}