From c05ffefd7d6a829c87caa8c1d908ad60f1d43981 Mon Sep 17 00:00:00 2001
From: CalDescent <caldescent@protonmail.com>
Date: Sat, 20 Nov 2021 14:09:00 +0000
Subject: [PATCH] Added a dynamic background to the loading screen. Still needs
 a lot of work.

---
 src/main/resources/loading/index.html | 201 +++++++++++++++++++++++---
 1 file changed, 183 insertions(+), 18 deletions(-)
diff --git a/src/main/resources/loading/index.html b/src/main/resources/loading/index.html
index f13c3202..1d1be4bf 100644
--- a/src/main/resources/loading/index.html
+++ b/src/main/resources/loading/index.html
@@ -1,23 +1,188 @@
-<html>
+<!DOCTYPE html>
+<html lang="en" >
 <head>
-    <title>Loading...</title>
-    <script>
-        setTimeout(window.location.reload.bind(window.location), 2500);
-    </script>
-    <style>
-        body {
-          font-family: Arial;
-          text-align: center;
-        }
-        h1 {
-            margin-top: 50px;
-        }
-    </style>
+  <meta charset="UTF-8">
+  <title>Loading...</title>
+  <style>
+    canvas {
+
+      position: absolute;
+      top: 0;
+      left: 0;
+      z-index: 0;
+    }
+    body {
+      font-family: Arial;
+      text-align: center;
+      color: black;
+    }
+    h1 {
+        margin-top: 50px;
+    }
+    #panel {
+      position: absolute;
+      width: 100%;
+      text-align: center;
+      z-index: 1000;
+    }
+
+  </style>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
+
 </head>
-</html>
 <body>
-    <h1>Loading... please wait...</h1>
-    <p>This page will refresh automatically when the content becomes available</p>
-    <p>(We can show a Qortal branded loading screen here)</p>
+
+<!--
+neon hexagon-forming particles
+
+Copyright (c) 2021 by Matei Copot (https://codepen.io/towc/pen/mJzOWJ)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-->
+
+<!-- partial:index.partial.html -->
+<canvas id=c></canvas>
+<!-- partial -->
+<script>
+  var w = c.width = window.innerWidth,
+      h = c.height = window.innerHeight,
+      ctx = c.getContext( '2d' ),
+
+      opts = {
+
+        len: 40, // Size
+        count: 50,
+        baseTime: 10,
+        addedTime: 10,
+        dieChance: .05, // Lifetime
+        spawnChance: 1,
+        sparkChance: 0, //.1,
+        sparkDist: 10,
+        sparkSize: 2,
+
+        color: 'hsl(hue,100%,light%)',
+        baseLight: 50,
+        addedLight: 10, // [50-10,50+10]
+        shadowToTimePropMult: 6,
+        baseLightInputMultiplier: .01,
+        addedLightInputMultiplier: .02,
+
+        cx: w / 2, // X pos
+        cy: h / 2, // Y pos
+        repaintAlpha: .04,
+        startColor: 210, // Initial color
+        hueChange: 0.001 // Color increment
+      },
+
+      tick = 0,
+      lines = [],
+      dieX = w / 2 / opts.len,
+      dieY = h / 2 / opts.len,
+
+      baseRad = Math.PI * 2 / 6;
+
+  ctx.fillStyle = 'black'; // Fade in
+  ctx.fillRect( 0, 0, w, h );
+
+  function loop() {
+
+    window.requestAnimationFrame( loop );
+
+    ++tick;
+
+    ctx.globalCompositeOperation = 'source-over';
+    ctx.shadowBlur = 0;
+    ctx.fillStyle = 'rgba(255,255,255,alp)'.replace( 'alp', opts.repaintAlpha );
+    ctx.fillRect( 0, 0, w, h );
+    ctx.globalCompositeOperation = 'darker';
+
+    if( lines.length < opts.count && Math.random() < opts.spawnChance )
+      lines.push( new Line );
+
+    lines.map( function( line ){ line.step(); } );
+  }
+  function Line(){
+
+    this.reset();
+  }
+  Line.prototype.reset = function(){
+
+    this.x = 0;
+    this.y = 0;
+    this.addedX = 0;
+    this.addedY = 0;
+
+    this.rad = 0;
+
+    this.lightInputMultiplier = opts.baseLightInputMultiplier + opts.addedLightInputMultiplier * Math.random();
+
+    this.color = opts.color.replace( 'hue', tick * opts.hueChange + opts.startColor );
+    this.cumulativeTime = 0;
+
+    this.beginPhase();
+  }
+  Line.prototype.beginPhase = function(){
+
+    this.x += this.addedX;
+    this.y += this.addedY;
+
+    this.time = 0;
+    this.targetTime = ( opts.baseTime + opts.addedTime * Math.random() ) |0;
+
+    this.rad += baseRad * ( Math.random() < .5 ? 1 : -1 );
+    this.addedX = Math.cos( this.rad );
+    this.addedY = Math.sin( this.rad );
+
+    if( Math.random() < opts.dieChance || this.x > dieX || this.x < -dieX || this.y > dieY || this.y < -dieY )
+      this.reset();
+  }
+  Line.prototype.step = function(){
+
+    ++this.time;
+    ++this.cumulativeTime;
+
+    if( this.time >= this.targetTime )
+      this.beginPhase();
+
+    var prop = this.time / this.targetTime,
+        wave = Math.sin( prop * Math.PI / 2  ),
+        x = this.addedX * wave,
+        y = this.addedY * wave;
+
+    ctx.shadowBlur = prop * opts.shadowToTimePropMult;
+    ctx.fillStyle = ctx.shadowColor = this.color.replace( 'light', opts.baseLight + opts.addedLight * Math.sin( this.cumulativeTime * this.lightInputMultiplier ) );
+    ctx.fillRect( opts.cx + ( this.x + x ) * opts.len, opts.cy + ( this.y + y ) * opts.len, 2, 2 );
+
+    if( Math.random() < opts.sparkChance )
+      ctx.fillRect( opts.cx + ( this.x + x ) * opts.len + Math.random() * opts.sparkDist * ( Math.random() < .5 ? 1 : -1 ) - opts.sparkSize / 2, opts.cy + ( this.y + y ) * opts.len + Math.random() * opts.sparkDist * ( Math.random() < .5 ? 1 : -1 ) - opts.sparkSize / 2, opts.sparkSize, opts.sparkSize )
+  }
+  loop();
+
+  window.addEventListener( 'resize', function(){
+
+    w = c.width = window.innerWidth;
+    h = c.height = window.innerHeight;
+    ctx.fillStyle = 'black';
+    ctx.fillRect( 0, 0, w, h );
+
+    opts.cx = w / 2;
+    opts.cy = h / 2;
+
+    dieX = w / 2 / opts.len;
+    dieY = h / 2 / opts.len;
+  });
+
+</script>
+
+<div id="panel">
+  <h1>Loading... please wait...</h1>
+  <p>This page will refresh automatically when the content becomes available</p>
+  <p>(We can show a Qortal branded loading screen here)</p>
+</div>
+
 </body>
 </html>
