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              html { overflow: hidden; }

body {
	margin: 0;
	padding: 0;
	overflow: hidden;
	color: #333;
	background: #01374b;
}
            
          
!
            
              var OutlineShader = {

	uniforms: {
		offset: { type: 'f', value: 0.3 },
		color: { type: 'v3', value: new THREE.Color('#000000') },
		alpha: { type: 'f', value: 1.0 }
	},

	vertexShader: [

		"uniform float offset;",

		"void main() {",
		"  vec4 pos = modelViewMatrix * vec4( position + normal * offset, 1.0 );",
		"  gl_Position = projectionMatrix * pos;",
		"}"

	].join('\n'),

	fragmentShader: [

		"uniform vec3 color;",
		"uniform float alpha;",

		"void main() {",
		"  gl_FragColor = vec4( color, alpha );",
		"}"

	].join('\n')

};

var container = document.getElementById( 'container' );

var renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
renderer.domElement.style.cursor = 'pointer';

var camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, .1, 100000 );
camera.position.set( 0, -6, 3 );

var controls = new THREE.OrbitControls( camera, renderer.domElement );
controls.target.y = 1;
controls.enableDamping = true;
controls.enabled = false;

var scene = new THREE.Scene();
scene.background = new THREE.Color( 0x01374b );
scene.fog = new THREE.Fog( scene.background, 10, 20 );

// lights
var aLight = new THREE.AmbientLight( 0x555555 );
scene.add( aLight );

var dLight1 = new THREE.DirectionalLight( 0xffffff, 0.4 );
dLight1.position.set( 0.7, 1, 1 );
scene.add( dLight1 );

// var dlh1 = new THREE.DirectionalLightHelper( dLight1, 0.5 );
// scene.add( dlh1 );

// var gh = new THREE.GridHelper( 2, 10, 0x000000, 0x808080 );
// scene.add( gh );

// -------------------------------------------

var rocketGroup = new THREE.Group();
scene.add( rocketGroup );

var rocket = new THREE.Group();
rocket.position.y = -1.5; // vertically center
rocketGroup.add( rocket );

// -------------------------------------------

// body

var points = [];

points.push( new THREE.Vector2( 0, 0 ) ); // bottom

for ( var i = 0; i < 11; i ++ ) {
	var point = new THREE.Vector2(
		Math.cos( i * 0.227 - 0.75 ) * 8,
		i * 4.0
	);

	points.push( point );
}

points.push( new THREE.Vector2( 0, 40 ) ); // tip

var rocketGeo = new THREE.LatheGeometry( points, 32 );

var rocketMat = new THREE.MeshToonMaterial({
	color: 0xcccccc,
	shininess: 1
});

var rocketOutlineMat = new THREE.ShaderMaterial({
	uniforms: THREE.UniformsUtils.clone( OutlineShader.uniforms ),
	vertexShader: OutlineShader.vertexShader,
	fragmentShader: OutlineShader.fragmentShader,
	side: THREE.BackSide,
});

var rocketObj = THREE.SceneUtils.createMultiMaterialObject(
	rocketGeo, [ rocketMat, rocketOutlineMat ]
);
rocketObj.scale.setScalar( 0.1 );
rocket.add( rocketObj );

// var wireframe = new THREE.WireframeGeometry( rocketGeo );
// var line = new THREE.LineSegments( wireframe );
// line.material.color.setHex( 0x000000 );
// rocketObj.add( line );

// -------------------------------------------

// window

var portalGeo = new THREE.CylinderBufferGeometry( 0.26, 0.26, 1.6, 32 );
var portalMat = new THREE.MeshToonMaterial({ color: 0x90dcff });
var portalOutlineMat = rocketOutlineMat.clone();
portalOutlineMat.uniforms.offset.value = 0.03;
var portal = THREE.SceneUtils.createMultiMaterialObject(
	portalGeo, [ portalMat, portalOutlineMat ]
);
portal.position.y = 2;
portal.rotation.x = Math.PI / 2;
rocket.add( portal );

// ------------

var circle = new THREE.Shape();
circle.absarc( 0, 0, 3.5, 0, Math.PI * 2 );

var hole = new THREE.Path();
hole.absarc( 0, 0, 3, 0, Math.PI * 2 );
circle.holes.push( hole );

var tubeExtrudeSettings = {
	amount: 17,
	steps: 1,
	bevelEnabled: false
};
var tubeGeo = new THREE.ExtrudeGeometry( circle, tubeExtrudeSettings );
tubeGeo.computeVertexNormals();
tubeGeo.center();
var tubeMat = new THREE.MeshToonMaterial({
	color: 0xff0000,
	shininess: 1
});
var tubeOutlineMat = rocketOutlineMat.clone();
tubeOutlineMat.uniforms.offset.value = 0.2;
var tube = THREE.SceneUtils.createMultiMaterialObject(
	tubeGeo, [ tubeMat, tubeOutlineMat ]
);
tube.position.y = 2;
tube.scale.setScalar( 0.1 );
rocket.add( tube );

// var wireframe = new THREE.WireframeGeometry( tubeGeo );
// var line = new THREE.LineSegments( wireframe );
// line.material.color.setHex( 0x000000 );
// tube.add( line );

// -------------------------------------------

// wing

var shape = new THREE.Shape();

shape.moveTo( 3, 0 );
shape.quadraticCurveTo( 25, -8, 15, -37 );
shape.quadraticCurveTo( 13, -21, 0, -20 );
shape.lineTo( 3, 0 );

var extrudeSettings = {
	steps: 1,
	amount: 4,
	bevelEnabled: true,
	bevelThickness: 2,
	bevelSize: 2,
	bevelSegments: 5
};

var wingGroup = new THREE.Group();
rocket.add( wingGroup );

var wingGeo = new THREE.ExtrudeGeometry( shape, extrudeSettings );
wingGeo.computeVertexNormals();
var wingMat = new THREE.MeshToonMaterial({
	color: 0xff0000,
	shininess: 1,
});
var wingOutlineMat = rocketOutlineMat.clone();
wingOutlineMat.uniforms.offset.value = 1;
var wing = THREE.SceneUtils.createMultiMaterialObject(
	wingGeo, [ wingMat, wingOutlineMat ]
);
wing.scale.setScalar( 0.03 );
wing.position.set( .6, 0.9, 0 );
wingGroup.add( wing );

// var wireframe = new THREE.WireframeGeometry( wingGeo );
// var line = new THREE.LineSegments( wireframe );
// line.material.color.setHex( 0x000000 );
// wing.add( line );

var wing2 = wingGroup.clone();
wing2.rotation.y = Math.PI;
rocket.add( wing2 );

var wing3 = wingGroup.clone();
wing3.rotation.y = Math.PI / 2;
rocket.add( wing3 );

var wing4 = wingGroup.clone();
wing4.rotation.y = - Math.PI / 2;
rocket.add( wing4 );

// -------------------------------------------

// fire and stars particles

// https://aerotwist.com/tutorials/creating-particles-with-three-js/
// https://aerotwist.com/static/tutorials/creating-particles-with-three-js/demo/
// downloads/paul-lewis-aerotwist/particles-r88

var Particles = function( options ) {

	var color = this.color = options.color || 0x333333;
	var size = this.size = options.size || 0.4;

	var pointCount = this.pointCount = options.pointCount || 40; // 1800
	var rangeV = this.rangeV = options.rangeV || 2; // 600
	var rangeH = this.rangeH = options.rangeH || 1;

	var speed = this.speed = this.speedTarget = options.speed || 0.0005;

	THREE.Group.call( this );

	// circle texture

	var canvas = document.createElement('canvas');
	canvas.width = canvas.height = 128;
	var ctx = canvas.getContext( '2d' );

	var centerX = canvas.width / 2;
	var centerY = canvas.height / 2;
	var radius = canvas.width / 3;

	ctx.beginPath();
	ctx.arc( centerX, centerY, radius, 0, 2 * Math.PI, false );
	ctx.fillStyle = '#fff';
	ctx.fill();

	var texture = new THREE.Texture( canvas );
	texture.premultiplyAlpha = true;
	texture.needsUpdate = true;

	//

	var pointsGeo = new THREE.Geometry();
	var pointsMat = new THREE.PointsMaterial({
		color: color,
		size: size,
		map: texture,
		transparent: true,
		depthWrite: false
	});

	for (var p = 0; p < pointCount; p++) {

		var point = new THREE.Vector3(
			THREE.Math.randFloatSpread( rangeH ),
			THREE.Math.randFloatSpread( rangeV ),
			THREE.Math.randFloatSpread( rangeH )
		);

		point.velocity = new THREE.Vector3( 0, -Math.random() * speed * 100, 0);

		pointsGeo.vertices.push( point );
	}

	var points = this.points = new THREE.Points( pointsGeo, pointsMat );
	points.position.y = - rangeV / 2;
	points.sortParticles = true;

	this.add( points );

}

Particles.prototype = Object.create( THREE.Group.prototype );
Particles.prototype.constructor = Particles;

Particles.prototype.update = function(){
	// this.points.rotation.y -= 0.01; // 0.01

	var pCount = this.pointCount;
	while ( pCount-- ) {

		var point = this.points.geometry.vertices[pCount];

		// check if we need to reset
		if ( point.y < - this.rangeV / 2 ) {
			point.y = this.rangeV / 2;
			point.velocity.y = 0;
		}

		// update the velocity
		point.velocity.y -= Math.random() * this.speed; // .1

		// and the position
		point.add( point.velocity );
	}

	this.points.geometry.verticesNeedUpdate = true;
}

Particles.prototype.updateConstant = function(){
	var pCount = this.pointCount;
	while ( pCount-- ) {

		var point = this.points.geometry.vertices[pCount];

		// check if we need to reset
		if ( point.y < - this.rangeV / 2 ) {
			point.y = this.rangeV / 2;
		}

		point.y -= this.speed;
	}

	this.points.geometry.verticesNeedUpdate = true;
}

// orange
var fire = new Particles({
	color: 0xff5a00,
	size: 0.4,
	rangeH: 0.8,
	rangeV: 2.5,
	pointCount: 50 
});
rocket.add( fire );

// yellow
var fire2 = new Particles({
	color: 0xffc000,
	size: 0.6,
	rangeH: 0.5
});
rocket.add( fire2 );

// var box = new THREE.BoxHelper( fire.points );
// fire.add( box );

// -------------------------------------------

// stars

var stars = new Particles({
	color: 0xffffff,
	size: 0.6,
	rangeH: 20,
	rangeV: 20,
	pointCount: 400,
	size: 0.2,
	speed: 0.1
});

stars.points.position.y = 0;
scene.add( stars );

// -------------------------------------------

// input

//

var plane = new THREE.Plane( new THREE.Vector3( 0, 0, 1 ), 0 );
// var helper = new THREE.PlaneHelper( plane, 5, 0xffff00 );
// scene.add( helper );

var rocketTarget = new THREE.Vector3();

var cameraTarget = new THREE.Vector3();
cameraTarget.copy( camera.position );

var raycaster = new THREE.Raycaster();

//

var mouse = new THREE.Vector2();

// var targetSphere = new THREE.Mesh(
// 	new THREE.SphereBufferGeometry( 0.2 ),
// 	new THREE.MeshPhongMaterial({ color: 0x00ff00 })
// );

// scene.add( targetSphere );

function mousemove(e){
	mouse.x = ( e.clientX / window.innerWidth ) * 2 - 1;
	mouse.y = - ( e.clientY / window.innerHeight ) * 2 + 1;

	cameraTarget.x = - mouse.x * 1;
	cameraTarget.z = 3 + mouse.y * 1;

	raycaster.setFromCamera( mouse, camera );
	raycaster.ray.intersectPlane( plane, rocketTarget );
	// targetSphere.position.copy( rocketTarget );
}

function mousedown(e){

	TWEEN.removeAll();

	// rotation
	var dir = mouse.x < 0 ? -1 : 1;
	var tween = new TWEEN.Tween( rocket.rotation )
		.to( { y: dir * Math.PI }, 1000 )
		.easing( TWEEN.Easing.Quadratic.InOut )
		.start();

	// scale
	var tween = new TWEEN.Tween( rocketGroup.scale )
		.to( { y: 0.7 }, 300 )
		.easing( TWEEN.Easing.Cubic.Out )
		.onComplete(function(){
			
			var tween = new TWEEN.Tween( rocketGroup.scale )
				.to( { y: 1.3 }, 300 )
				.easing( TWEEN.Easing.Cubic.In )
				.onComplete(function(){

					var tween = new TWEEN.Tween( rocketGroup.scale )
						.to( { y: 1 }, 200 )
						.easing( TWEEN.Easing.Cubic.Out )
						.start();

				})
				.start();

		})
		.start();

	stars.speedTarget = 0.3;

	renderer.domElement.style.cursor = 'none';
}

function mouseup(e){
	stars.speedTarget = 0.1;
	renderer.domElement.style.cursor = 'pointer';
}

renderer.domElement.addEventListener('mousemove', mousemove, false);
renderer.domElement.addEventListener('mousedown', mousedown, false);
renderer.domElement.addEventListener('mouseup', mouseup, false);

// -------------------------------------------

window.addEventListener( 'resize', resize, false );

function resize() {
	camera.aspect = window.innerWidth / window.innerHeight;
	camera.updateProjectionMatrix();
	renderer.setSize( window.innerWidth, window.innerHeight );
}

var clock = new THREE.Clock();
var time = 0;
var angle = THREE.Math.degToRad( 3 );

loop();

function loop() {
	requestAnimationFrame( loop );
	TWEEN.update();
	controls.update();

	time += clock.getDelta();

	rocketGroup.rotation.y = Math.cos( time * 8 ) * angle;

	fire.update();
	fire2.update();

	stars.updateConstant();

	lerp(rocketGroup.position, 'y', rocketTarget.y);
	lerp(rocketGroup.position, 'x', rocketTarget.x);

	lerp(camera.position, 'x', cameraTarget.x);
	lerp(camera.position, 'z', cameraTarget.z);

	lerp(stars, 'speed', stars.speedTarget);

	renderer.render( scene, camera );
}

function lerp( object, prop, destination ) {
	if (object && object[prop] !== destination) {
		object[prop] += (destination - object[prop]) * 0.1;

		if (Math.abs(destination - object[prop]) < 0.01) {
			object[prop] = destination;
		}
	}
}
            
          
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