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224 lines
5.8 KiB
224 lines
5.8 KiB
3 years ago
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<!-- Licensed under a BSD license. See license.html for license -->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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<title>Three.js - Game - Load Models</title>
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<style>
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html, body {
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margin: 0;
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height: 100%;
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}
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#c {
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width: 100%;
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height: 100%;
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display: block;
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}
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#loading {
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position: absolute;
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left: 0;
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top: 0;
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width: 100%;
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height: 100%;
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display: flex;
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align-items: center;
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justify-content: center;
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text-align: center;
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font-size: xx-large;
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font-family: sans-serif;
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}
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#loading>div>div {
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padding: 2px;
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}
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.progress {
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width: 50vw;
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border: 1px solid black;
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}
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#progressbar {
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width: 0%;
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transition: width ease-out .5s;
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height: 1em;
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background-color: #888;
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background-image: linear-gradient(
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-45deg,
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rgba(255, 255, 255, .5) 25%,
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transparent 25%,
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transparent 50%,
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rgba(255, 255, 255, .5) 50%,
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rgba(255, 255, 255, .5) 75%,
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transparent 75%,
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transparent
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);
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background-size: 50px 50px;
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animation: progressanim 2s linear infinite;
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}
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@keyframes progressanim {
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0% {
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background-position: 50px 50px;
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}
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100% {
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background-position: 0 0;
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}
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}
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</style>
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</head>
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<body>
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<canvas id="c"></canvas>
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<div id="loading">
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<div>
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<div>...loading...</div>
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<div class="progress"><div id="progressbar"></div></div>
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</div>
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</div>
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</body>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../../build/three.module.js",
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"three/addons/": "../../examples/jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import {OrbitControls} from 'three/addons/controls/OrbitControls.js';
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import {GLTFLoader} from 'three/addons/loaders/GLTFLoader.js';
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import * as SkeletonUtils from 'three/addons/utils/SkeletonUtils.js';
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function main() {
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const canvas = document.querySelector('#c');
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const renderer = new THREE.WebGLRenderer({canvas});
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renderer.outputEncoding = THREE.sRGBEncoding;
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const fov = 45;
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const aspect = 2; // the canvas default
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const near = 0.1;
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const far = 100;
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const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
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camera.position.set(0, 20, 40);
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const controls = new OrbitControls(camera, canvas);
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controls.target.set(0, 5, 0);
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controls.update();
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const scene = new THREE.Scene();
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scene.background = new THREE.Color('white');
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function addLight(...pos) {
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const color = 0xFFFFFF;
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const intensity = 0.8;
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const light = new THREE.DirectionalLight(color, intensity);
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light.position.set(...pos);
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scene.add(light);
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scene.add(light.target);
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}
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addLight(5, 5, 2);
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addLight(-5, 5, 5);
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const manager = new THREE.LoadingManager();
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manager.onLoad = init;
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const progressbarElem = document.querySelector('#progressbar');
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manager.onProgress = (url, itemsLoaded, itemsTotal) => {
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progressbarElem.style.width = `${itemsLoaded / itemsTotal * 100 | 0}%`;
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};
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const models = {
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pig: { url: 'resources/models/animals/Pig.gltf' },
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cow: { url: 'resources/models/animals/Cow.gltf' },
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llama: { url: 'resources/models/animals/Llama.gltf' },
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pug: { url: 'resources/models/animals/Pug.gltf' },
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sheep: { url: 'resources/models/animals/Sheep.gltf' },
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zebra: { url: 'resources/models/animals/Zebra.gltf' },
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horse: { url: 'resources/models/animals/Horse.gltf' },
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knight: { url: 'resources/models/knight/KnightCharacter.gltf' },
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};
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{
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const gltfLoader = new GLTFLoader(manager);
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for (const model of Object.values(models)) {
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gltfLoader.load(model.url, (gltf) => {
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model.gltf = gltf;
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});
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}
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}
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function prepModelsAndAnimations() {
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Object.values(models).forEach(model => {
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const animsByName = {};
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model.gltf.animations.forEach((clip) => {
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animsByName[clip.name] = clip;
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});
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model.animations = animsByName;
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});
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}
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const mixers = [];
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function init() {
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// hide the loading bar
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const loadingElem = document.querySelector('#loading');
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loadingElem.style.display = 'none';
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prepModelsAndAnimations();
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Object.values(models).forEach((model, ndx) => {
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const clonedScene = SkeletonUtils.clone(model.gltf.scene);
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const root = new THREE.Object3D();
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root.add(clonedScene);
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scene.add(root);
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root.position.x = (ndx - 3) * 3;
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const mixer = new THREE.AnimationMixer(clonedScene);
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const firstClip = Object.values(model.animations)[0];
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const action = mixer.clipAction(firstClip);
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action.play();
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mixers.push(mixer);
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});
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}
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function resizeRendererToDisplaySize(renderer) {
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const canvas = renderer.domElement;
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const width = canvas.clientWidth;
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const height = canvas.clientHeight;
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const needResize = canvas.width !== width || canvas.height !== height;
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if (needResize) {
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renderer.setSize(width, height, false);
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}
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return needResize;
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}
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let then = 0;
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function render(now) {
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now *= 0.001; // convert to seconds
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const deltaTime = now - then;
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then = now;
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if (resizeRendererToDisplaySize(renderer)) {
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const canvas = renderer.domElement;
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camera.aspect = canvas.clientWidth / canvas.clientHeight;
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camera.updateProjectionMatrix();
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}
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for (const mixer of mixers) {
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mixer.update(deltaTime);
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}
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renderer.render(scene, camera);
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requestAnimationFrame(render);
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}
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requestAnimationFrame(render);
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}
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main();
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</script>
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</html>
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