92 lines
2.6 KiB
JavaScript
92 lines
2.6 KiB
JavaScript
/*
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* This file is part of BlueMap, licensed under the MIT License (MIT).
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*
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* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
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* Copyright (c) contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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export class Tile {
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/**
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* @param x {number}
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* @param z {number}
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* @param onLoad {function(Tile)}
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* @param onUnload {function(Tile)}
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*/
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constructor(x, z, onLoad, onUnload) {
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Object.defineProperty( this, 'isTile', { value: true } );
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/** @type {THREE.Mesh} */
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this.model = null;
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this.onLoad = onLoad;
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this.onUnload = onUnload;
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this.x = x;
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this.z = z;
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this.unloaded = true;
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this.loading = false;
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}
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/**
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* @param tileLoader {TileLoader}
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* @returns {Promise<void>}
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*/
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load(tileLoader) {
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if (this.loading) return Promise.reject("tile is already loading!");
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this.loading = true;
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this.unload();
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this.unloaded = false;
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return tileLoader.load(this.x, this.z)
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.then(model => {
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if (this.unloaded){
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model.geometry.dispose();
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return;
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}
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this.model = model;
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this.onLoad(this);
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})
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.finally(() => {
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this.loading = false;
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});
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}
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unload() {
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this.unloaded = true;
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if (this.model) {
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this.onUnload(this);
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this.model.geometry.dispose();
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this.model = null;
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}
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}
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/**
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* @returns {boolean}
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*/
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get loaded() {
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return !!this.model;
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}
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}
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