P5Visualization/fractal_tree.html at main · Sylus1000/P5Visualization · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>FractalTree</title>
    <style>
      body {
        margin: 0;
        overflow: hidden;
      }
    </style>
  </head>
  <body>
    <script
      src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.4.0/p5.min.js"
      integrity="sha512-N4kV7GkNv7QR7RX9YF/olywyIgIwNvfEe2nZtfyj73HdjCUkAfOBDbcuJ/cTaN04JKRnw1YG1wnUyNKMsNgg3g=="
      crossorigin="anonymous"
      referrerpolicy="no-referrer"
    ></script>
    <script>
      var angle_slider;
      var angle;
      var left_shrink_slider, right_shrink_slider, min_branch_length_slider;
      var left_shrink_factor;
      var right_shrink_factor;
      var min_branch_length;
      var scale_slider;
      var xpos_slider;

      const canvas_w = window.innerHeight-50;
      const fps = 60;

      function setup() {
        createCanvas(canvas_w, canvas_w);
        frameRate(fps);
        angle_slider = createSlider(0, PI / 2, PI / 8, 0.1);
        left_shrink_slider = createSlider(0.5, 0.8, 0.6, 0.01);
        right_shrink_slider = createSlider(0.5, 0.8, 0.8, 0.01);
        min_branch_length_slider = createSlider(5, 10, 10, 1);
        scale_slider = createSlider(2, 8, 4, 1);
        xpos_slider = createSlider(0, canvas_w, 305, 1);
      }
      function draw() {
        background(127);
        translate(xpos_slider.value(), canvas_w);
        stroke("brown");
        strokeWeight(2);
        angle = angle_slider.value();
        left_shrink_factor = left_shrink_slider.value();
        right_shrink_factor = right_shrink_slider.value();
        min_branch_length = min_branch_length_slider.value();
        branch(canvas_w / scale_slider.value());
      }
      function branch(length) {
        line(0, 0, 0, -length);
        translate(0, -length);
        if (length > min_branch_length) {
          if (length <= min_branch_length * 8) stroke("green");
          push();
          rotate(angle);
          branch(length * right_shrink_factor);
          pop();
          push();
          rotate(-angle);
          branch(length * left_shrink_factor);
          pop();
        }
      }
    </script>
  </body>
</html>