/*-- Made with Zdog --*/

// setting up Zdog illustration element
const illoElem = document.querySelector('.illo');
const illoSize = 50;
const minWindowSize = Math.min( window.innerWidth - 20, window.innerHeight - 60 );
const zoom = Math.floor( (minWindowSize / illoSize) * 0.75 );
illoElem.setAttribute( 'width', illoSize * zoom );
illoElem.setAttribute( 'height', illoSize * zoom);

// Zdog math variables
const TAU = Zdog.TAU;

// boolean flag for spin 
let isSpinning = true;

// illustration base
const illo = new Zdog.Illustration({
  element: illoElem,
  zoom: zoom,
  dragRotate: true,
  onDragStart: function() {
    isSpinning = false;
  },
  rotate: { y: TAU/4 }
});

// frontside earth
const head = new Zdog.Hemisphere({
  addTo: illo,
  diameter: 40,
  stroke: false,
  color: '#1976B5',
});

// backside earth
new Zdog.Hemisphere({
  addTo: head,
  diameter: 40,
  stroke: false,
  color: '#105AAA',
  rotate: { x: TAU/2 }
});

// light green lands
const land1 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -2, y: 0, z: 5 },
  ],
  translate: { x: 17, y: 5, z: 4 },
  color: "#6FCC50",
  closed: false,
  fill: true,
  stroke: 7,
  addTo: head,
});
land1.copy({
  scale: { x: -1 },
  translate: { x: -17, y: 0, z: 4 },
})

const land2 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -10, y: 0, z: 4 },
  ],
  translate: { x: 13, y: -10, z: 10 },
  color: "#6FCC50",
  closed: false,
  fill: true,
  stroke: 7,
  addTo: head,
});

new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: 5, y: 0, z: 4 },
  ],
  translate: { x: -13, y: -10, z: 10 },
  color: "#6FCC50",
  closed: false,
  fill: true,
  stroke: 7,
  addTo: head,
});

const land3 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -2, y: 0, z: 3 },
  ],
  translate: { x: 13, y: 13, z: 7 },
  color: "#6FCC50",
  closed: false,
  fill: true,
  stroke: 4,
  addTo: head,
});
land3.copy({
  scale: { x: -1 },
  translate: { x: -13, y: 13, z: 7 },
})

const land4 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -7, y: 0, z: 3 },
  ],
  translate: { x: 10, y: -3, z: 16 },
  color: "#6FCC50",
  closed: false,
  fill: true,
  stroke: 4,
  addTo: head,
});
land4.copy({
  scale: { x: -1 },
  translate: { x: -10, y: 3, z: 16 },
})

// light clouds
const cloud1 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -2, y: 0, z: 5 },
  ],
  translate: { x: 20, y: 7, z: 4 },
  color: "#fff",
  closed: false,
  fill: true,
  stroke: 5,
  addTo: head,
});

new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: 3, y: 0, z: 1 },
  ],
  translate: { x: -5, y: 7, z: 20 },
  color: "#fff",
  closed: false,
  fill: true,
  stroke: 5,
  addTo: head,
});

const cloud2 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -5, y: 0, z: 10 },
  ],
  translate: { x: 23, y: 2, z: 4 },
  color: "#fff",
  closed: false,
  fill: true,
  stroke: 4,
  addTo: head,
});
cloud2.copy({
  scale: { x: -1 },
  translate: { x: -23, y: 2, z: 4 },
})

const cloud3 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -2, y: 0, z: 5 },
  ],
  translate: { x: 20, y: -2, z: 7 },
  color: "#fff",
  closed: false,
  fill: true,
  stroke: 2,
  addTo: head,
});
cloud3.copy({
  scale: { x: -1 },
  translate: { x: -20, y: -2, z: 7 },
})

const cloud4 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -2, y: 0, z: 5 },
  ],
  translate: { x: 18, y: -10, z: 7 },
  color: "#fff",
  closed: false,
  fill: true,
  stroke: 3,
  addTo: head,
});
cloud4.copy({
  scale: { x: -1 },
  translate: { x: -18, y: -10, z: 7 },
})

// dark clouds
const cloud5 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: 0, y: 0, z: -3 },
  ],
  translate: { x: 20, y: -8, z: -3 },
  color: "#A6B3DA",
  closed: false,
  fill: true,
  stroke: 3,
  addTo: head,
});
cloud5.copy({
  scale: { x: -1 },
  translate: { x: -20, y: -8, z: -3 },
})

const cloud6 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -4, y: 0, z: -7 },
  ],
  translate: { x: 20, y: 0, z: -8 },
  color: "#A6B3DA",
  closed: false,
  fill: true,
  stroke: 6,
  addTo: head,
});
cloud6.copy({
  scale: { x: -1 },
  translate: { x: -20, y: 0, z: -8 },
})

const cloud7 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z:  0 },
    { x: -3, y: 0, z: -3 },
  ],
  translate: { x: 15, y: 15, z: -8 },
  color: "#A6B3DA",
  closed: false,
  fill: true,
  stroke: 3,
  addTo: head,
});
cloud7.copy({
  scale: { x: -1 },
  translate: { x: -15, y: 15, z: -8 },
})

new Zdog.Shape({
  path: [
    { x: 0, y:  0, z: 0 },
    { x: -5, y:  0, z: 0 },
  ],
  translate: { x: -5, y: -4, z: -18 },
  color: "#A6B3DA",
  fill: true,
  stroke: 8,
  addTo: head,
});

// dark green lands
const land5 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z: 0 },
    { x: 2.5, y:  0, z: 2 },
  ],
  translate: { x: 7, y: 7, z: -16 },
  color: "#489268",
  fill: true,
  stroke: 4,
  addTo: head,
});
land5.copy({
  scale: { x: -1 },
  translate: { x: -7, y: 12, z: -16 },
})

const land6 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z: 0 },
    { x: 10, y:  0, z: 9 },
  ],
  translate: { x: 5, y: -2, z: -17 },
  color: "#489268",
  fill: true,
  stroke: 8,
  addTo: head,
});

const land7 = new Zdog.Shape({
  path: [
    { x: 0, y:  0, z: 0 },
    { x: 2.5, y:  0, z: 5 },
  ],
  translate: { x: 13, y: -10, z: -10 },
  color: "#489268",
  fill: true,
  stroke: 4,
  addTo: head,
});
land5.copy({
  scale: { x: -1 },
  translate: { x: -13, y: -10, z: -10 },
  stroke: 5,
})


// spinning animation
function animate() {
  illo.rotate.y += isSpinning ? -0.01 : 0;
  illo.updateRenderGraph();
  requestAnimationFrame( animate );
}

animate();

// reset animation
document.querySelector('.reset-button').onclick = function() {
  isSpinning = false;
  illo.rotate.set({
    y: TAU/4,
  });
  
  setTimeout(() => { 
    isSpinning = true;
  }, 2000);
};