ꦫꦣꦺꦤ꧀ꦄꦤ꧀ꦠꦱꦺꦤ

PATH: home / lab2454c / mact34.com / wp-content / plugins / bdthemes-element-pack / assets / vendor / js

/*
 *   Wavify
 *   JavaScript library to make some nice waves
 *   by peacepostman @ potion
 */
function wavify(wave_element, options) {
  if ("undefined" === typeof options) options = {};

//  Options
  //
  //
  var settings = Object.assign(
    {},
    {
      container: options.container ? options.container : "body",
      // Height of wave
      height: 200,
      // Amplitude of wave
      amplitude: 100,
      // Animation speed
      speed: 0.15,
      // Total number of articulation in wave
      bones: 3,
      // Color
      color: "rgba(255,255,255, 0.20)"
    },
    options
  );

var wave = wave_element,
    width = document.querySelector(settings.container).getBoundingClientRect()
      .width,
    height = document.querySelector(settings.container).getBoundingClientRect()
      .height,
    points = [],
    lastUpdate,
    totalTime = 0,
    animationInstance = false,
    tweenMaxInstance = false;

//  Allow new settings, avoid setting new container for logic purpose please :)
  //
  function rebuilSettings(params) {
    settings = Object.assign({}, settings, params);
  }

function drawPoints(factor) {
    var points = [];

for (var i = 0; i <= settings.bones; i++) {
      var x = (i / settings.bones) * width;
      var sinSeed =
        (factor + (i + (i % settings.bones))) * settings.speed * 100;
      var sinHeight = Math.sin(sinSeed / 100) * settings.amplitude;
      var yPos = Math.sin(sinSeed / 100) * sinHeight + settings.height;
      points.push({ x: x, y: yPos });
    }

return points;
  }

function drawPath(points) {
    var SVGString = "M " + points[0].x + " " + points[0].y;

var cp0 = {
      x: (points[1].x - points[0].x) / 2,
      y: points[1].y - points[0].y + points[0].y + (points[1].y - points[0].y)
    };

SVGString +=
      " C " +
      cp0.x +
      " " +
      cp0.y +
      " " +
      cp0.x +
      " " +
      cp0.y +
      " " +
      points[1].x +
      " " +
      points[1].y;

var prevCp = cp0;
    var inverted = -1;

for (var i = 1; i < points.length - 1; i++) {
      var cpLength = Math.sqrt(prevCp.x * prevCp.x + prevCp.y * prevCp.y);
      var cp1 = {
        x: points[i].x - prevCp.x + points[i].x,
        y: points[i].y - prevCp.y + points[i].y
      };

SVGString +=
        " C " +
        cp1.x +
        " " +
        cp1.y +
        " " +
        cp1.x +
        " " +
        cp1.y +
        " " +
        points[i + 1].x +
        " " +
        points[i + 1].y;
      prevCp = cp1;
      inverted = -inverted;
    }

SVGString += " L " + width + " " + height;
    SVGString += " L 0 " + height + " Z";
    return SVGString;
  }

//  Draw function
  //
  //
  function draw() {
    var now = window.Date.now();

if (lastUpdate) {
      var elapsed = (now - lastUpdate) / 1000;
      lastUpdate = now;

totalTime += elapsed;

animationInstance = requestAnimationFrame(draw);
  }

//  Pure js debounce function to optimize resize method
  //
  //
  function debounce(func, wait, immediate) {
    var timeout;
    return function() {
      var context = this,
        args = arguments;
      clearTimeout(timeout);
      timeout = setTimeout(function() {
        timeout = null;
        if (!immediate) func.apply(context, args);
      }, wait);
      if (immediate && !timeout) func.apply(context, args);
    };
  }

//  Redraw for resize with debounce
  //
  var redraw = debounce(function() {
    pause();
    points = [];
    totalTime = 0;
    width = document.querySelector(settings.container).getBoundingClientRect()
      .width;
    height = document.querySelector(settings.container).getBoundingClientRect()
      .height;
    lastUpdate = false;
    play();
  }, 250);

function play() {
    if (!animationInstance) {
      animationInstance = requestAnimationFrame(draw);
    }
  }

function pause() {
    if (animationInstance) {
      cancelAnimationFrame(animationInstance);
      animationInstance = false;
    }
  }

//  Boot Wavify
  //
  boot();

return {
    reboot: reboot,
    play: play,
    pause: pause,
    kill: kill,
    updateColor: updateColor
  };
}

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