@smoud/tiny/extras/three/systems/Loader.js

Fast and tiny JavaScript library for HTML5 game and playable ads creation.

var THREE = require("three"),
    LoadingManager = THREE.LoadingManager,
    Texture = THREE.Texture,
    sRGBEncoding = THREE.sRGBEncoding;

var gltfLoader = null;

Tiny.Cache.gltf = {};
Tiny.Cache.texture3d = {};
Tiny.Cache.mesh3d = {};
Tiny.Cache.animation3d = {};

Tiny.Loader.prototype.gltf = function (key, json, splitObjects, cb) {
    this.list.push({
        key: key,
        src: json,
        type: "gltf",
        split: splitObjects,
        cb: cb
    });
};

Tiny.Loader.prototype.texture3d = function (key, src, cb) {
    this.list.push({
        key: key,
        src: src,
        type: "texture3d",
        cb: cb
    });
};

Tiny.Loader.gltf = function (resource, cb) {
    var key = resource.key;

    if (gltfLoader == null) {
        var manager = new LoadingManager();
        gltfLoader = new window.GLTFLoader(manager);
    }

    function loaded(gltf) {
        Tiny.Cache.gltf[key] = gltf;

        if (resource.split) {
            gltf.scene.traverse(function (obj) {
                if (obj.isMesh) Tiny.Cache.mesh3d[key + "." + obj.name] = obj;
            });

            for (var i = 0; i < gltf.animations.length; i++) {
                var obj = gltf.animations[i];
                Tiny.Cache.animation3d[key + "." + obj.name] = obj;
            }
        }

        if (resource.cb) resource.cb(gltf);

        cb();
    }

    if (resource.src.length > 200) {
        gltfLoader.parse(resource.src, "", loaded);
    } else {
        gltfLoader.load(resource.src, loaded);
    }
};

Tiny.Loader.texture3d = function (resource, cb) {
    var key = resource.key;

    Tiny.Loader.image(resource, function (resource, image) {
        var texture = new Texture(image);
        texture.encoding = sRGBEncoding;
        texture.flipY = false;
        texture.needsUpdate = true;
        texture.key = key;

        Tiny.Cache.texture3d[resource.key] = texture;

        cb();
    });
};