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HTML

              
                <script src="https://unpkg.com/zdog@1/dist/zdog.dist.min.js"></script>


<body>
  <div class="container">
    <div id="canvasContainer">
      <canvas id="spaceCanvas" width="430" height="380"></canvas>
    </div>
    <button id="btn" onclick="regenerate_world()"> ➰ ☁️ Regenerate ☁️ ➰</button>
  </div>
</body>

<!-- <a target="_blank" href="https://twitter.com/BobMain49/status/1136990919557861382">
<img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/782173/twitter-cornflowerblue-none.svg" style="position: absolute; bottom: 20px; right: 20px; width: 35px" /></a> -->
              
            
!

CSS

              
                body {
  background-color: rgba(19,20,23);
}
canvas {
  transform: rotate(15deg);
}
.container {
  background-color: rgba(19,20,23);
  border-radius: 5px;
  width: 430px;
  margin: auto;
}
#btn {
  border: none;
  background-color: #ccc;
  border-radius: 3px;
  font-size: 20px;
  width: 350px;
  margin-left: 40px;
  margin-bottom: 10px;
  cursor: pointer;
}
              
            
!

JS

              
                
// 🌱 CHARACTERISTICS 🌱
const planet_radius = 125
const atmosphere_thickness = 5
const offset = -10

const TAU = Zdog.TAU
let isSpinning = true
let regenerate = false


// 🐶 ZDOG ILLUSTRATION 🐶
let space = new Zdog.Illustration({
  element: '#spaceCanvas',
  dragRotate: true,
  rotate: { x: -TAU*0.05 },
  onDragStart: function() {
    isSpinning = false
  },
})

function generate_world(space, randomMass){

  // 🌏 PLANET 🌏
  const topHempishere = new Zdog.Hemisphere({
    addTo: space,
    diameter: planet_radius * 2,
    translate: { x: offset, y: offset },
    color: "cornflowerblue", //backface: "blue",
    stroke: false,
  })

  topHempishere.copy({
    rotate: { y: Zdog.TAU/2 }, //color: "blue", backface: "cornflowerblue",
  })


  // 💈 NORTH / SOUTH POLE 💈
  const north_pole = new Zdog.Shape({
    addTo: space,
    translate: { x: offset, y: offset },
    path: [
      {y: planet_radius * -1},
      {y: (planet_radius+50) * -1}
    ],
    stroke: 7,
    color: 'firebrick'
  })
  const north_pole_mark = new Zdog.Ellipse({
    addTo: north_pole,
    translate: { y: (planet_radius-1) * -1 },
    rotate: {x: TAU/4 },
    diameter: 20,
    stroke: 8,
    fill: true,
    color: "rgba(200,190,190,1)",
  })
  // 🔰 South pole !
  north_pole.copy({
    path: [
      {y: planet_radius },
      {y: planet_radius+50 }
    ],
    color: 'blue'
  })
  north_pole_mark.copy({
    addTo: north_pole,
    translate: { y: planet_radius-3 },
    color: "rgba(100,100,255,1)",
  })


  // // 🇪🇨 ⭕️ Equator ⭕️ 🇪🇨
  // set_latitude_marks(0, 400, 3, 0, "rgba(184,134,11,0.5)", "dot")
  // // 🎅 PRIME MERIDIAN 🐧
  // set_longitude_marks(0, 200, 3, 0,"rgba(0,110,0,0.3)", "dot")


  // ☁️☁️☁️ CLOUDS ☁️☁️☁️
  let cloudCount = 0
  for (var i = 0; i < 40; i++) {
    create_cloud_cluster({
      lat: random(-50,50),
      lng: random(-180,180),
      altitude: random(10,30),
      count: random(10,30),
      strokeMaxMin: [8,25]
    })
  }

  function create_cloud_cluster(cords){
    for (var i = 0; i < cords.count; i++) {
      set_cordinate_mark({
        lat: cords.lat + random(0, cords.count/3),
        lng: cords.lng + random(0, cords.count),
        stroke: random(cords.strokeMaxMin[0], cords.strokeMaxMin[1]),
        color: "rgba(200,200,200,"+(random(0,5)/10)+")",
        altitude: cords.altitude + random(5, 15),
        shape: "dot"
      })
      cloudCount++
    }
  }


  //  🏔🌋⛰ LAND 🏔🌋⛰
  const interval = 90
  const stroke = 2
  const radShift = 0
  const maxGrow = -1
  const maxShrink = -3
  cols = [
    "rgba(170,170,255,0.5)",
    "rgba(170,170,255,0.5)",
    "rgba(170,170,255,0.5)",
    "rgba(160,130,52,1)",
    "rgba(160,130,52,1)",
    "rgba(0,128,0,1)",
    "rgba(85,107,47,1)",
    "rgba(67,85,37,1)",
    "rgba(160,100,42,1)",
    "rgba(140,80,42,1)",
    "rgba(120,60,42,1)",
    "rgba(170,110,92,1)",
    "rgba(200,180,200,1)"
  ]
  let landMassCount = 0
  const lngI = 360 / interval
  const d = (Math.PI*planet_radius) / interval
  const r = d/2
  const r2 = r/2
  const pr = Math.sqrt((r*r) + (r2*r2))
  const latI = Math.sqrt( ( (r*2)*(r*2) ) - (r*r))
  const hexWheel = [
    {TR: (s, i, {lat,lng})=>{ return [latI*s-(latI*i), (lngI/2*s)+(lngI*i/2)] } },
    {R: (s, i, {lat,lng})=>{ return [-(latI*i), (lngI*s)-(lngI*i/2) ] }},
    {BR: (s, i, {lat,lng})=>{ return [-latI*s, (lngI/2*s)-(lngI*i)] }},
    {BL: (s, i ,{lat,lng})=>{ return [-latI*s+(latI*i), -lngI/2*s-(lngI*i/2)] } },
    {L: (s, i, {lat,lng})=>{ return [(latI*i), -lngI*s+(lngI*i/2)] } },
    {TL: (s, i, {lat,lng})=>{ return [latI*s, -lngI/2*s+(lngI*i)] } },
  ]

  // ⛰🏔🌋⛰🏔 Build land around center mark! ⛰🏔🌋⛰🏔
  function buildLandMass({sLat, sLng, stages}){

    // 🌋 Center Land Mark
    const landKey = { "0-TR-0": stages }
    set_cordinate_mark({ lat: sLat, lng: sLng, radius: pr*2, stroke,
    altitude: stages*.75, color: cols[stages], shape: "poly", sides: 6 })

    // ⛰🌋🏔 Build land around center mark!
    for (let stage = 0; stage <= stages; stage++) {
      for (let hw = 0; hw < hexWheel.length; hw++) {
        const key = Object.keys(hexWheel[hw])[0]
        for (let i = 1; i <= stage; i++) {
          let look = i <= 2 ? 0 : i-2
          let land = stage != 1 ? landKey[(stage-1)+"-"+key+"-"+(look)] : landKey["0-TR-0"]
          const [ lat, lng ]  = hexWheel[hw][key]( stage, i-1, {sLat,sLng})
          const setStk = stages - stage < 1 ? 0 : stroke
          let newAlt = land + random(maxShrink, maxGrow)
          if (newAlt > -1) {
            set_cordinate_mark({ lat: lat+sLat, lng: lng+sLng, radius: pr*2+radShift,
            stroke: setStk, altitude: newAlt*.75, color: cols[newAlt], shape: "poly", sides: 6 })
            landMassCount++
            // 🏔⬆️ BUILD MOUNTAINS UP!
            // for (var a = 0; a < newAlt; a++) {
            //   set_cordinate_mark({ lat: lat+sLat, lng: lng+sLng, radius: pr*2+radShift, stroke: setStk,
            //   altitude: a, color: cols[newAlt], shape: "poly", sides: 6 })
            //   landMassCount++
            // }
          }
          landKey[(stage)+"-"+key+"-"+(i-1)] = newAlt
        }
      }
    }
  }
  if (randomMass){
    for (var i = 0; i < 8; i++) {
      buildLandMass({
        sLat: random(-75,75),
        sLng: random(0,180),
        stages: random(4,12)})
    }
    for (var i = 0; i < 20; i++) {
      buildLandMass({
        sLat: random(-55,55),
        sLng: random(-179,180),
        stages: random(1,2)})
    }
  } else {
    buildLandMass({sLat: 20, sLng: 37, stages: 12})
    buildLandMass({sLat: 40, sLng: -37, stages: 12})
    buildLandMass({sLat: 30, sLng: -27, stages: 12})
    buildLandMass({sLat: 0, sLng: 150, stages: 8})
    buildLandMass({sLat: 60, sLng: -70, stages: 12})
    buildLandMass({sLat: 10, sLng: -10, stages: 8})
    buildLandMass({sLat: -50, sLng: -130, stages: 9})
    buildLandMass({sLat: 20, sLng: -90, stages: 6})
    buildLandMass({sLat: -10, sLng: 10, stages: 12})
    buildLandMass({sLat: -15, sLng: 180, stages: 12})
    buildLandMass({sLat: 35, sLng: 80, stages: 9})
    // Reefs
    buildLandMass({sLat: -35, sLng: 80, stages: 3})
    buildLandMass({sLat: -40, sLng: 90, stages: 3})
    buildLandMass({sLat: -43, sLng: 90, stages: 2})
    buildLandMass({sLat: 33, sLng: 180, stages: 2})
    buildLandMass({sLat: 30, sLng: 170, stages: 3})
    buildLandMass({sLat: 32, sLng: 150, stages: 2})
    buildLandMass({sLat: 25, sLng: -130, stages: 3})
  }


  // 🌐 🛠 LATITUDE & LONGITUDE MARKS & TOOLS 🛠 🌐
  function set_latitude_marks(lat, cnt, stroke, altitude, color, shape){
    for ( var j=0; j < cnt; j++ ) {
      set_cordinate_mark({
        lng: (360 / cnt) * j,
        lat, stroke, color, altitude, shape
      })
    }
  }

  function set_longitude_marks(lng, cnt, stroke, altitude, color, shape) {
    for ( var j=0; j < cnt; j++ ) {
      set_cordinate_mark({
        lat: (180 / cnt) * j -90,
        lng, stroke, color, altitude, shape
      })
    }
  }

  function set_cordinate_mark(mark){
    const lat_radians = (TAU/4) - (mark.lat * (Math.PI/180)) * -1
    const lng_radians = (mark.lng * (Math.PI/180)) * -1
    var rotor1 = new Zdog.Anchor({
      addTo: space,
      translate: { x: offset, y: offset },
      rotate: { y: lng_radians },
    })
    var rotor2 = new Zdog.Anchor({
      addTo: rotor1,
      rotate: { x: lat_radians },
    })
    if (mark.shape === "dot") {
      new Zdog.Shape({
        addTo: rotor2,
        translate: { y: planet_radius + (mark.altitude || 0) },
        stroke: mark.stroke,
        color: mark.color
      })
    } else if (mark.shape === "cone") {
      new Zdog.Cone({
        addTo: rotor2,
        translate: { y: planet_radius + (mark.altitude || 0) },
        rotate: {x: TAU*.75},
        diameter: mark.diameter,
        length: mark.length,
        color: mark.color,
      })
    } else if (mark.shape === "poly") {
      new Zdog.Polygon({
        addTo: rotor2,
        sides: mark.sides,
        radius: mark.radius,
        translate: { y: planet_radius  + (mark.altitude || 0) },
        rotate: {x: TAU*.75},
        stroke: mark.stroke,
        fill: true,
        color: mark.color,
        backface: mark.backface,
      })

    }
  }

  function random(min, max) {
    return Math.floor(Math.random() * (max - min + 1) + min);
  }


  // 🔥🔥🔥🔥 Animate! 🔥🔥🔥🔥
  space.rotate.z = 0.3
  function animate() {
    if (!regenerate) {
      space.rotate.y += isSpinning ? 0.01 : 0
      space.updateRenderGraph()
      requestAnimationFrame( animate )
    }
  }
  console.log("total clouds, land: ", cloudCount, landMassCount)

  animate()

}


// ➰ ☁️ Regenerate ☁️ ➰
function regenerate_world(){
  regenerate = true
  canvasContainer.innerHTML = `
    <canvas id="spaceCanvas" width="430" height="380"></canvas>
  `
  space = false
  requestAnimationFrame(()=>{
    space = new Zdog.Illustration({
      element: '#spaceCanvas',
      dragRotate: true,
      rotate: { x: TAU*0.05 },
      onDragStart: function() {
        isSpinning = false
      },
    })
    regenerate = false
    generate_world(space, true)
  })
}

generate_world(space)
              
            
!
999px

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