spine-runtimes/spine-ts/core/src/AssetManager.ts

270 lines
9.2 KiB
TypeScript

/******************************************************************************
* Spine Runtimes License Agreement
* Last updated January 1, 2020. Replaces all prior versions.
*
* Copyright (c) 2013-2020, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
module spine {
export class AssetManager implements Disposable {
private pathPrefix: string;
private textureLoader: (image: HTMLImageElement) => any;
private assets: Map<any> = {};
private errors: Map<string> = {};
private toLoad = 0;
private loaded = 0;
private rawDataUris: Map<string> = {};
constructor (textureLoader: (image: HTMLImageElement) => any, pathPrefix: string = "") {
this.textureLoader = textureLoader;
this.pathPrefix = pathPrefix;
}
private downloadText (url: string, success: (data: string) => void, error: (status: number, responseText: string) => void) {
let request = new XMLHttpRequest();
request.overrideMimeType("text/html");
if (this.rawDataUris[url]) url = this.rawDataUris[url];
request.open("GET", url, true);
request.onload = () => {
if (request.status == 200) {
success(request.responseText);
} else {
error(request.status, request.responseText);
}
}
request.onerror = () => {
error(request.status, request.responseText);
}
request.send();
}
private downloadBinary (url: string, success: (data: Uint8Array) => void, error: (status: number, responseText: string) => void) {
let request = new XMLHttpRequest();
if (this.rawDataUris[url]) url = this.rawDataUris[url];
request.open("GET", url, true);
request.responseType = "arraybuffer";
request.onload = () => {
if (request.status == 200) {
success(new Uint8Array(request.response as ArrayBuffer));
} else {
error(request.status, request.responseText);
}
}
request.onerror = () => {
error(request.status, request.responseText);
}
request.send();
}
setRawDataURI(path: string, data: string) {
this.rawDataUris[this.pathPrefix + path] = data;
}
loadBinary(path: string,
success: (path: string, binary: Uint8Array) => void = null,
error: (path: string, error: string) => void = null) {
path = this.pathPrefix + path;
this.toLoad++;
this.downloadBinary(path, (data: Uint8Array): void => {
this.assets[path] = data;
if (success) success(path, data);
this.toLoad--;
this.loaded++;
}, (state: number, responseText: string): void => {
this.errors[path] = `Couldn't load binary ${path}: status ${status}, ${responseText}`;
if (error) error(path, `Couldn't load binary ${path}: status ${status}, ${responseText}`);
this.toLoad--;
this.loaded++;
});
}
loadText(path: string,
success: (path: string, text: string) => void = null,
error: (path: string, error: string) => void = null) {
path = this.pathPrefix + path;
this.toLoad++;
this.downloadText(path, (data: string): void => {
this.assets[path] = data;
if (success) success(path, data);
this.toLoad--;
this.loaded++;
}, (state: number, responseText: string): void => {
this.errors[path] = `Couldn't load text ${path}: status ${status}, ${responseText}`;
if (error) error(path, `Couldn't load text ${path}: status ${status}, ${responseText}`);
this.toLoad--;
this.loaded++;
});
}
loadTexture (path: string,
success: (path: string, image: HTMLImageElement) => void = null,
error: (path: string, error: string) => void = null) {
path = this.pathPrefix + path;
let storagePath = path;
this.toLoad++;
let img = new Image();
img.crossOrigin = "anonymous";
img.onload = (ev) => {
let texture = this.textureLoader(img);
this.assets[storagePath] = texture;
this.toLoad--;
this.loaded++;
if (success) success(path, img);
}
img.onerror = (ev) => {
this.errors[path] = `Couldn't load image ${path}`;
this.toLoad--;
this.loaded++;
if (error) error(path, `Couldn't load image ${path}`);
}
if (this.rawDataUris[path]) path = this.rawDataUris[path];
img.src = path;
}
loadTextureAtlas (path: string,
success: (path: string, atlas: TextureAtlas) => void = null,
error: (path: string, error: string) => void = null
) {
let parent = path.lastIndexOf("/") >= 0 ? path.substring(0, path.lastIndexOf("/")) : "";
path = this.pathPrefix + path;
this.toLoad++;
this.downloadText(path, (atlasData: string): void => {
let pagesLoaded: any = { count: 0 };
let atlasPages = new Array<string>();
try {
let atlas = new TextureAtlas(atlasData, (path: string) => {
atlasPages.push(parent == "" ? path : parent + "/" + path);
let image = document.createElement("img") as HTMLImageElement;
image.width = 16;
image.height = 16;
return new FakeTexture(image);
});
} catch (e) {
let ex = e as Error;
this.errors[path] = `Couldn't load texture atlas ${path}: ${ex.message}`;
if (error) error(path, `Couldn't load texture atlas ${path}: ${ex.message}`);
this.toLoad--;
this.loaded++;
return;
}
for (let atlasPage of atlasPages) {
let pageLoadError = false;
this.loadTexture(atlasPage, (imagePath: string, image: HTMLImageElement) => {
pagesLoaded.count++;
if (pagesLoaded.count == atlasPages.length) {
if (!pageLoadError) {
try {
let atlas = new TextureAtlas(atlasData, (path: string) => {
return this.get(parent == "" ? path : parent + "/" + path);
});
this.assets[path] = atlas;
if (success) success(path, atlas);
this.toLoad--;
this.loaded++;
} catch (e) {
let ex = e as Error;
this.errors[path] = `Couldn't load texture atlas ${path}: ${ex.message}`;
if (error) error(path, `Couldn't load texture atlas ${path}: ${ex.message}`);
this.toLoad--;
this.loaded++;
}
} else {
this.errors[path] = `Couldn't load texture atlas page ${imagePath}} of atlas ${path}`;
if (error) error(path, `Couldn't load texture atlas page ${imagePath} of atlas ${path}`);
this.toLoad--;
this.loaded++;
}
}
}, (imagePath: string, errorMessage: string) => {
pageLoadError = true;
pagesLoaded.count++;
if (pagesLoaded.count == atlasPages.length) {
this.errors[path] = `Couldn't load texture atlas page ${imagePath}} of atlas ${path}`;
if (error) error(path, `Couldn't load texture atlas page ${imagePath} of atlas ${path}`);
this.toLoad--;
this.loaded++;
}
});
}
}, (state: number, responseText: string): void => {
this.errors[path] = `Couldn't load texture atlas ${path}: status ${status}, ${responseText}`;
if (error) error(path, `Couldn't load texture atlas ${path}: status ${status}, ${responseText}`);
this.toLoad--;
this.loaded++;
});
}
get (path: string) {
path = this.pathPrefix + path;
return this.assets[path];
}
remove (path: string) {
path = this.pathPrefix + path;
let asset = this.assets[path];
if ((<any>asset).dispose) (<any>asset).dispose();
this.assets[path] = null;
}
removeAll () {
for (let key in this.assets) {
let asset = this.assets[key];
if ((<any>asset).dispose) (<any>asset).dispose();
}
this.assets = {};
}
isLoadingComplete (): boolean {
return this.toLoad == 0;
}
getToLoad (): number {
return this.toLoad;
}
getLoaded (): number {
return this.loaded;
}
dispose () {
this.removeAll();
}
hasErrors() {
return Object.keys(this.errors).length > 0;
}
getErrors() {
return this.errors;
}
}
}