75 lines
3.0 KiB
TypeScript

/******************************************************************************
* Spine Runtimes License Agreement
* Last updated July 28, 2023. Replaces all prior versions.
*
* Copyright (c) 2013-2023, 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.
*****************************************************************************/
import type { AssetExtension } from "@pixi/assets";
import { LoaderParserPriority, checkExtension } from "@pixi/assets";
import { ExtensionType, settings, extensions } from "@pixi/core";
type SkeletonJsonAsset = any;
type SkeletonBinaryAsset = Uint8Array;
function isJson(resource: any): resource is SkeletonJsonAsset {
return resource.hasOwnProperty("bones");
}
function isBuffer(resource: any): resource is SkeletonBinaryAsset {
return resource instanceof Uint8Array;
}
const spineLoaderExtension: AssetExtension<SkeletonJsonAsset | SkeletonBinaryAsset> = {
extension: ExtensionType.Asset,
loader: {
extension: {
type: ExtensionType.LoadParser,
priority: LoaderParserPriority.Normal,
},
test(url) {
return checkExtension(url, ".skel");
},
async load(url: string): Promise<SkeletonBinaryAsset> {
const response = await settings.ADAPTER.fetch(url);
const buffer = new Uint8Array(await response.arrayBuffer());
return buffer;
},
testParse(asset: unknown, options: {src: string}): Promise<boolean> {
const isJsonSpineModel = checkExtension(options.src, ".json") && isJson(asset);
const isBinarySpineModel = checkExtension(options.src, ".skel") && isBuffer(asset);
return Promise.resolve(isJsonSpineModel || isBinarySpineModel);
},
},
} as AssetExtension<SkeletonJsonAsset | SkeletonBinaryAsset>;
extensions.add(spineLoaderExtension);