spiral_calendar/view/graphics.js

import * as THREE from 'three';
import { SpiralSegment } from './spiral.js';

const spiralHeight = 2;

let spiralMaterial = new THREE.MeshPhongMaterial({color: 0xffffff});
let distance = 5;

const scene = new THREE.Scene();

var canvas = document.querySelector('#canvas');
const renderer = new THREE.WebGLRenderer({ antialias: true, canvas });
document.body.appendChild( renderer.domElement );

const camera = new THREE.PerspectiveCamera(75, canvas.clientWidth / canvas.clientHeight, 0.1, 1000);
camera.position.z = distance;

// setting light
const pointLight = new THREE.PointLight( 0xffffff, 1);
pointLight.position.set( 0, 0, 1 );

const ambientLight = new THREE.AmbientLight(0xffffff, 10);

scene.add(pointLight);
scene.add(ambientLight);

let segments = []

for (let i = 0; i < 40; i ++) {
    let color = `#${(Math.floor(Math.random() * 16777215)).toString(16)}`;
    let material = new THREE.MeshPhongMaterial({color: color});
    segments.push(new SpiralSegment(i - 20, spiralHeight, material).getSegment());
    scene.add(segments[i]);
}

export const rotateCamera = (x, y) => {
    camera.rotateX(THREE.MathUtils.degToRad(x))
    camera.rotateY(THREE.MathUtils.degToRad(y))
    console.log(`Rotating camera by (${x};${y})`)
}

export const getCameraRotation = () => {
    return camera.rotation
}

export const getCameraQuaternion = () => {
    return camera.quaternion
}

export const getCameraPosition = () => {
    return camera.position
}

export const setCameraPostion = (x, y ,z) => {
    if (x != undefined) camera.position.x = x;
    if (y != undefined) camera.position.y = y;
    if (z != undefined) camera.position.z = z;
    console.log(`Setting camera position to (${x};${y};${z})`)
}

export const getCanvasSize = () => {
    return {width: canvas.width, height: canvas.height}
}

export const getDistance = () => {
    return distance
}

export const setDistance = (d) => {
    distance = d;
}

// console.log((THREE.MathUtils.radToDeg(camera.rotation._y)));
// camera.rotateY(THREE.MathUtils.degToRad(90));
// console.log((THREE.MathUtils.radToDeg(camera.rotation._y)));
// camera.rotateY(THREE.MathUtils.degToRad(90));
// console.log((THREE.MathUtils.radToDeg(camera.rotation._y)));
// camera.rotateY(THREE.MathUtils.degToRad(90));
// console.log((THREE.MathUtils.radToDeg(camera.rotation._y)));
// camera.rotateY(THREE.MathUtils.degToRad(90));
// console.log((THREE.MathUtils.radToDeg(camera.rotation._y)));

//main loop
function animate() {
    if (resizeRendererToDisplaySize(renderer)) {
        const canvas = renderer.domElement;
        camera.aspect = canvas.clientWidth / canvas.clientHeight;
        camera.updateProjectionMatrix();
    }

    camera.lookAt(0, 0, 0);

    renderer.render(scene, camera);

    requestAnimationFrame(animate);
}

function resizeRendererToDisplaySize(renderer) {
    const canvas = renderer.domElement;
    const width = canvas.clientWidth;
    const height = canvas.clientHeight;

    const needResize = canvas.width !== width || canvas.height !== height;
    if (needResize) renderer.setSize(width, height, false);

    return needResize;
}

animate();