/* 
 * NEUMORPHISM TYPO
 * Made with ThreeJS - Enjoy!
 *
 * Experimenting with neumorphism in typography.
 * Use cursor to move around the shiny effect. 
 * On mobile touch + drag screen.
 *
 * #034 - #100DaysOfCode
 * By ilithya | 2020
 * https://www.ilithya.rocks/
 * https://twitter.com/ilithya_rocks
 */

const colorBg = 'hotpink'; // #ff69b4
const colorTypo = '#ff49a4'; // dark pink

const nearDist = 0.1;
const farDist = 10000;

const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(
	75,
	window.innerWidth / window.innerHeight,
	nearDist,
	farDist
);
camera.position.z = Math.round(farDist/20);

const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setClearColor(colorBg);
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
document.querySelector("#canvas-wrapper").appendChild(renderer.domElement);

const light = new THREE.DirectionalLight(0xffdffd, 1);
light.position.set(-15, 0, 70);
scene.add(light);

// CREATE TYPOGRAPHY
const group = new THREE.Group();
const typoLoader = new THREE.FontLoader();
const createTypo = font => {
	const word = `neu
morph
ism`;
	const typoSize = 120;
	const typoHeight =  Math.round(typoSize / 4);
	const typoProperties = {
		font: font,
		size: typoSize,
		height: 0,
		curveSegments: 20,
		bevelEnabled: false,
		bevelThickness: 0.1,
		bevelSize: 0.5,
		bevelOffset: 0,
		bevelSegments: 10
	};
	const textMesh = new THREE.Mesh();
	textMesh.geometry = new THREE.TextBufferGeometry(word, typoProperties);
	textMesh.material = new THREE.MeshStandardMaterial({
		color: colorBg,
		emissive: colorTypo,
		roughness: 0,
		metalness: 1,
		// side: THREE.DoubleSide,
		transparent: true,
		opacity: 0.7,
	});
	
    textMesh.geometry.computeBoundingBox();
	textMesh.geometry
		.boundingBox
		.getCenter(textMesh.position)
		.multiplyScalar(-1);
	
	textMesh.matrixAutoUpdate = false;
	textMesh.updateMatrix();

	group.add(textMesh);
};
typoLoader.load(
	'https://threejs.org/examples/fonts/helvetiker_bold.typeface.json',
	createTypo
);
scene.add(group);

// CREATE PART OF THE MOUSE/TOUCH OVER EFFECT
let mouseX = 0;
let mouseY = 0;
const mouseFX = {
	windowX: Math.round(window.innerWidth / 2),
	windowY: Math.round(window.innerHeight / 2),
	coordinates: function(cX, cY) {
		mouseX = cX - this.windowX;	
		mouseY = cY - this.windowY;	
	},
	onMouseMove: function(e) {
		mouseFX.coordinates(e.clientX, e.clientY);
	},
	onTouchMove: function(e) {
		const touchX = e.changedTouches[0].clientX;
		const touchY = e.changedTouches[0].clientY;
		mouseFX.coordinates(touchX, touchY);
	}
};
document.addEventListener('mousemove', mouseFX.onMouseMove);
document.addEventListener('touchmove', mouseFX.onTouchMove);

// RENDERING
const render = () => {
	const ct = 0.05;
	camera.position.x += (mouseX - camera.position.x) * ct;
	camera.position.y += (mouseY - camera.position.y) * ct;
	camera.lookAt(scene.position);

	const r = Date.now() * 0.0018;
	const rot = Math.sin(r) * 0.12;
	group.rotation.x = rot*1.4;
	group.rotation.y = rot;

	renderer.render(scene, camera);
	
	requestAnimationFrame(render);
};
render();