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spiral_calendar
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Spiral is now infinite

This commit is contained in:
leca 2023-12-05 03:17:38 +03:00
parent f2f5a26729
commit bb15002a38
3 changed files with 179 additions and 98 deletions
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87
view/controls.js vendored
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@ -1,22 +1,21 @@
import { Euler, MathUtils, Quaternion, Vector3 } from "three"; import * as THREE from "three";
import { getDistance, setDistance, getCameraPosition, setCameraPostion, rotateCamera, getCanvasSize, getCameraRotation, getCameraQuaternion } from "./graphics.js";
let isMousePressed = false let isMousePressed = false
let angle = 0; export class SpiralCamera {
constructor(canvas, segmentHeight) {
// this.camera = new THREE.PerspectiveCamera(75, canvas.clientWidth / canvas.clientHeight, 0.1, 1000);
this.camera = new THREE.PerspectiveCamera(75, canvas.clientWidth / canvas.clientHeight, 0.1, 1000);
this.angle = 0;
this.distance = 5;
this.canvas = canvas
this.offset = 0;
this.segmentHeight = segmentHeight;
this.viewingYear = new Date().getFullYear();
const updateCameraPosition = (horizontal, vertical) => { console.log(this.canvas)
let ratio = 4 * Math.PI / getCanvasSize().width;
let distance = getDistance();
let alpha = (360 * (horizontal * ratio / (2 * Math.PI))) ; this.camera.position.z = this.distance;
let betta = MathUtils.degToRad(angle);
let x = Math.cos(betta) * distance;
let z = Math.sin(betta) * distance;
setCameraPostion(x, undefined, z);
angle += alpha;
}
addEventListener('mousedown', (event) => { addEventListener('mousedown', (event) => {
if (event.button == 0) { if (event.button == 0) {
@ -34,13 +33,61 @@ addEventListener('mousemove', (event) => {
if (isMousePressed) { if (isMousePressed) {
let horizontal = event.movementX; let horizontal = event.movementX;
let vertical = event.movementY; let vertical = event.movementY;
updateCameraPosition(horizontal, vertical); this.updateCameraPosition(horizontal, vertical);
} }
}); });
addEventListener('wheel', (event) => { addEventListener('wheel', (event) => {
let d = getDistance(); this.distance += this.distance / (event.deltaY / 60);
console.log(d + d / (event.deltaY/60)) this.updateCameraPosition(0, 0);
setDistance(d + d / (event.deltaY/60)); });
updateCameraPosition(0, 0);
}) this.changedViewingYear = new CustomEvent("changedViewYear", {});
}
updateCameraPosition = (horizontal, vertical) => {
let ratio = 4 * Math.PI / this.canvas.width;
let alpha = (360 * (horizontal * ratio / (2 * Math.PI)));
let betta = THREE.MathUtils.degToRad(this.angle);
let z = Math.sin(betta) * this.distance;
let x = Math.cos(betta) * this.distance;
this.offset -= vertical * ratio
if (this.offset > this.segmentHeight) {
this.offset = 0;
this.viewingYear--;
dispatchEvent(this.changedViewingYear)
}
if (this.offset < 0) {
this.offset = this.segmentHeight;
this.viewingYear++;
dispatchEvent(this.changedViewingYear)
}
this.camera.position.x = x;
this.camera.position.z = z;
this.angle += alpha;
};
getCamera = () => {
return this.camera;
};
getOffset = () => {
return this.offset;
};
getViewingYear = () => {
return this.viewingYear;
};
}

142
view/graphics.js
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@ -1,9 +1,12 @@
import * as THREE from 'three'; import * as THREE from 'three';
import { SpiralSegment } from './spiral.js'; import { SpiralSegment } from './spiral.js';
import { SpiralCamera } from './controls.js';
import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';
import { FontLoader } from 'three/addons/loaders/FontLoader.js';
const spiralHeight = 2; const segmentHeight = 2;
let spiralMaterial = new THREE.MeshPhongMaterial({color: 0xffffff}); let spiralMaterial = new THREE.MeshPhongMaterial({ color: 0x0f0f0f });
let distance = 5; let distance = 5;
const scene = new THREE.Scene(); const scene = new THREE.Scene();
@ -12,8 +15,7 @@ var canvas = document.querySelector('#canvas');
const renderer = new THREE.WebGLRenderer({ antialias: true, canvas }); const renderer = new THREE.WebGLRenderer({ antialias: true, canvas });
document.body.appendChild(renderer.domElement); document.body.appendChild(renderer.domElement);
const camera = new THREE.PerspectiveCamera(75, canvas.clientWidth / canvas.clientHeight, 0.1, 1000); const camera = (new SpiralCamera(canvas, segmentHeight));
camera.position.z = distance;
// setting light // setting light
const pointLight = new THREE.PointLight(0xffffff, 1); const pointLight = new THREE.PointLight(0xffffff, 1);
@ -24,73 +26,98 @@ const ambientLight = new THREE.AmbientLight(0xffffff, 10);
scene.add(pointLight); scene.add(pointLight);
scene.add(ambientLight); scene.add(ambientLight);
let segments = [] let segments = [];
let viewingYear = new Date().getFullYear();
let viewDistance = 5;
let verticalOffset = 0;
let switched = true;
for (let i = 0; i < 40; i ++) { // for (let i = 0; i < 40; i ++) {
// let color = `#${(Math.floor(Math.random() * 16777215)).toString(16)}`;
// let material = new THREE.MeshPhongMaterial({color: color});
// segments.push(new SpiralSegment(0, i - 20, spiralHeight, material).getSegment());
// scene.add(segments[i]);
// }
// let text = document.createElement('div');
// text.style.position = 'absolute'
// text.style.width = 100
// text.style.height = 100
// text.style.color = "white"
// text.innerHTML = "test"
// text.style.top = 200 + 'px'
// text.style.left = 200 + 'px'
// document.body.appendChild(text)
// const loader = new FontLoader();
// loader.load( 'fonts/helvetiker_regular.typeface.json', function ( font ) {
// const geometry = new TextGeometry('Hello three.js!', {
// font: font,
// size: 80,
// height: 5,
// curveSegments: 12,
// bevelEnabled: true,
// bevelThickness: 10,
// bevelSize: 8,
// bevelOffset: 0,
// bevelSegments: 5
// });
// const textmesh = new THREE.Mesh(geometry, spiralMaterial);
// // textmesh.scale = new THREE.Vector3(2, 2, 2)
// scene.add(textmesh)
// } );
for (let i = 0; i < viewDistance * 2 + 1; i++) {
let color = `#${(Math.floor(Math.random() * 16777215)).toString(16)}`; let color = `#${(Math.floor(Math.random() * 16777215)).toString(16)}`;
let material = new THREE.MeshPhongMaterial({ color: color }); let material = new THREE.MeshPhongMaterial({ color: color });
segments.push(new SpiralSegment(i - 20, spiralHeight, material).getSegment()); segments.push(new SpiralSegment(viewingYear - viewDistance + i, segmentHeight, material));
scene.add(segments[i]); scene.add(segments[i].getSegment());
} }
export const rotateCamera = (x, y) => { addEventListener("changedViewYear", (e) => {
camera.rotateX(THREE.MathUtils.degToRad(x)) let color = `#${(Math.floor(Math.random() * 16777215)).toString(16)}`;
camera.rotateY(THREE.MathUtils.degToRad(y)) let material = new THREE.MeshPhongMaterial({ color: color });
console.log(`Rotating camera by (${x};${y})`) let newYear = camera.getViewingYear();
if (newYear > viewingYear) { // +
scene.remove(segments[0].getSegment())
for (let i = 0; i < segments.length; i++) {
if (i < segments.length - 1) segments[i] = segments[i + 1]
else segments[i] = new SpiralSegment(newYear + viewDistance, segmentHeight, material);
}
scene.add(segments[segments.length - 1].getSegment());
} else {
scene.remove(segments[segments.length - 1].getSegment())
segments.pop();
segments.unshift(new SpiralSegment(newYear - viewDistance, segmentHeight, material))
scene.add(segments[0].getSegment());
} }
export const getCameraRotation = () => { viewingYear = newYear;
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 //main loop
function animate() { function animate() {
if (resizeRendererToDisplaySize(renderer)) { if (resizeRendererToDisplaySize(renderer)) {
const canvas = renderer.domElement; const canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight; camera.getCamera().aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix(); camera.getCamera().updateProjectionMatrix();
} }
camera.lookAt(0, 0, 0); for (let i = 0; i < segments.length; i++) {
segments[i].getSegment().position.y = ((segments[i].year - camera.getViewingYear()) * segmentHeight + camera.getOffset());
}
renderer.render(scene, camera); camera.getCamera().lookAt(0, 0, 0);
renderer.render(scene, camera.getCamera());
requestAnimationFrame(animate); requestAnimationFrame(animate);
} }
@ -106,4 +133,9 @@ function resizeRendererToDisplaySize(renderer) {
return needResize; return needResize;
} }
const rebuildSpiral = () => {
segments = [];
}
animate(); animate();

10
view/spiral.js
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@ -17,11 +17,13 @@ export const calculateGeometry = (spiralHeight) => {
return new THREE.TubeGeometry(curve, 400, 0.1, 400, false); return new THREE.TubeGeometry(curve, 400, 0.1, 400, false);
} }
const geom = calculateGeometry(2)
export class SpiralSegment { export class SpiralSegment {
constructor(number, height, material) { constructor(year, height, material) {
this.number = number; this.year = year;
this.segment = new THREE.Mesh(calculateGeometry(height), material); this.segment = new THREE.Mesh(geom, material);
this.segment.position.y += number * height; // this.segment.position.y += number * height;
} }
getSegment() { getSegment() {