113 lines
17 KiB
JavaScript
113 lines
17 KiB
JavaScript
/******************************************************************************
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* Spine Runtimes License Agreement
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* Last updated April 5, 2025. Replaces all prior versions.
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*
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* Copyright (c) 2013-2025, Esoteric Software LLC
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*
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* Integration of the Spine Runtimes into software or otherwise creating
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* derivative works of the Spine Runtimes is permitted under the terms and
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* conditions of Section 2 of the Spine Editor License Agreement:
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* http://esotericsoftware.com/spine-editor-license
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*
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* Otherwise, it is permitted to integrate the Spine Runtimes into software
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* or otherwise create derivative works of the Spine Runtimes (collectively,
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* "Products"), provided that each user of the Products must obtain their own
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* Spine Editor license and redistribution of the Products in any form must
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* include this license and copyright notice.
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*
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* THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
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* BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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import { TimeKeeper, AssetManager, ManagedWebGLRenderingContext, SceneRenderer, Input } from "./index.js";
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/** Manages the life-cycle and WebGL context of a {@link SpineCanvasApp}. The app loads
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* assets and initializes itself, then updates and renders its state at the screen refresh rate. */
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export class SpineCanvas {
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config;
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context;
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/** Tracks the current time, delta, and other time related statistics. */
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time = new TimeKeeper();
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/** The HTML canvas to render to. */
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htmlCanvas;
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/** The WebGL rendering context. */
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gl;
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/** The scene renderer for easy drawing of skeletons, shapes, and images. */
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renderer;
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/** The asset manager to load assets with. */
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assetManager;
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/** The input processor used to listen to mouse, touch, and keyboard events. */
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input;
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disposed = false;
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/** Constructs a new spine canvas, rendering to the provided HTML canvas. */
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constructor(canvas, config) {
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this.config = config;
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if (!config.pathPrefix)
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config.pathPrefix = "";
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if (!config.app)
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config.app = {
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loadAssets: () => { },
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initialize: () => { },
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update: () => { },
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render: () => { },
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error: () => { },
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dispose: () => { },
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};
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if (!config.webglConfig)
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config.webglConfig = { alpha: true };
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this.htmlCanvas = canvas;
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this.context = new ManagedWebGLRenderingContext(canvas, config.webglConfig);
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this.renderer = new SceneRenderer(canvas, this.context);
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this.gl = this.context.gl;
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this.assetManager = new AssetManager(this.context, config.pathPrefix);
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this.input = new Input(canvas);
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if (config.app.loadAssets)
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config.app.loadAssets(this);
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let loop = () => {
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if (this.disposed)
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return;
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requestAnimationFrame(loop);
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this.time.update();
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if (config.app.update)
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config.app.update(this, this.time.delta);
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if (config.app.render)
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config.app.render(this);
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};
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let waitForAssets = () => {
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if (this.disposed)
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return;
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if (this.assetManager.isLoadingComplete()) {
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if (this.assetManager.hasErrors()) {
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if (config.app.error)
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config.app.error(this, this.assetManager.getErrors());
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}
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else {
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if (config.app.initialize)
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config.app.initialize(this);
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loop();
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}
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return;
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}
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requestAnimationFrame(waitForAssets);
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};
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requestAnimationFrame(waitForAssets);
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}
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/** Clears the canvas with the given color. The color values are given in the range [0,1]. */
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clear(r, g, b, a) {
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this.gl.clearColor(r, g, b, a);
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this.gl.clear(this.gl.COLOR_BUFFER_BIT);
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}
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/** Disposes the app, so the update() and render() functions are no longer called. Calls the dispose() callback.*/
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dispose() {
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if (this.config.app.dispose)
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this.config.app.dispose(this);
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this.disposed = true;
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}
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}
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Replaces all prior versions.\n *\n * Copyright (c) 2013-2025, Esoteric Software LLC\n *\n * Integration of the Spine Runtimes into software or otherwise creating\n * derivative works of the Spine Runtimes is permitted under the terms and\n * conditions of Section 2 of the Spine Editor License Agreement:\n * http://esotericsoftware.com/spine-editor-license\n *\n * Otherwise, it is permitted to integrate the Spine Runtimes into software\n * or otherwise create derivative works of the Spine Runtimes (collectively,\n * \"Products\"), provided that each user of the Products must obtain their own\n * Spine Editor license and redistribution of the Products in any form must\n * include this license and copyright notice.\n *\n * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC \"AS IS\" AND ANY\n * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY\n * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,\n * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND\n * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n *****************************************************************************/\n\nimport { TimeKeeper, AssetManager, ManagedWebGLRenderingContext, SceneRenderer, Input, StringMap } from \"./index.js\";\n\n/** An app running inside a {@link SpineCanvas}. The app life-cycle\n * is as follows:\n *\n * 1. `loadAssets()` is called. The app can queue assets for loading via {@link SpineCanvas.assetManager}.\n * 2. `initialize()` is called when all assets are loaded. The app can setup anything it needs to enter the main application logic.\n * 3. `update()` is called periodically at screen refresh rate. The app can update its state.\n * 4. `render()` is called periodically at screen refresh rate. The app can render its state via {@link SpineCanvas.renderer} or directly via the WebGL context in {@link SpineCanvas.gl}.\n *\n * The `error()` method is called in case the assets could not be loaded. The `dispose()` method is called in case the canvas has been disposed via {@link SpineCanvas.dispose}.\n */\nexport interface SpineCanvasApp {\n\tloadAssets?(canvas: SpineCanvas): void;\n\tinitialize?(canvas: SpineCanvas): void;\n\tupdate?(canvas: SpineCanvas, delta: number): void;\n\trender?(canvas: SpineCanvas): void;\n\terror?(canvas: SpineCanvas, errors: StringMap<string>): void;\n\tdispose?(canvas: SpineCanvas): void;\n}\n\n/** Configuration passed to the {@link SpineCanvas} constructor */\nexport interface SpineCanvasConfig {\n\t/* The {@link SpineCanvasApp} to be run in the canvas. */\n\tapp: SpineCanvasApp;\n\t/* The path prefix to be used by the {@link AssetManager}. */\n\tpathPrefix?: string;\n\t/* The WebGL context configuration */\n\twebglConfig?: any;\n}\n\n/** Manages the life-cycle and WebGL context of a {@link SpineCanvasApp}. The app loads\n * assets and initializes itself, then updates and renders its state at the screen refresh rate. */\nexport class SpineCanvas {\n\treadonly context: ManagedWebGLRenderingContext;\n\n\t/** Tracks the current time, delta, and other time related statistics. */\n\treadonly time = new TimeKeeper();\n\t/** The HTML canvas to render to. */\n\treadonly htmlCanvas: HTMLCanvasElement;\n\t/** The WebGL rendering context. */\n\treadonly gl: WebGLRenderingContext;\n\t/** The scene renderer for easy drawing of skeletons, shapes, and images. */\n\treadonly renderer: SceneRenderer;\n\t/** The asset manager to load assets with. */\n\treadonly assetManager: AssetManager;\n\t/** The input processor used to listen to mouse, touch, and keyboard events. */\n\treadonly input: Input;\n\n\tprivate disposed = false;\n\n\t/** Constructs a new spine canvas, rendering to the provided HTML canvas. */\n\tconstructor (canvas: HTMLCanvasElement, private config: SpineCanvasConfig) {\n\t\tif (!config.pathPrefix) config.pathPrefix = \"\";\n\t\tif (!config.app) config.app = {\n\t\t\tloadAssets: () => { },\n\t\t\tinitialize: () => { },\n\t\t\tupdate: () => { },\n\t\t\trender: () => { },\n\t\t\terror: () => { },\n\t\t\tdispose: () => { },\n\t\t}\n\t\tif (!config.webglConfig) config.webglConfig = { alpha: true };\n\n\t\tthis.htmlCanvas = canvas;\n\t\tthis.context = new ManagedWebGLRenderingContext(canvas, config.webglConfig);\n\t\tthis.renderer = new SceneRenderer(canvas, this.context);\n\t\tthis.gl = this.context.gl;\n\t\tthis.assetManager = new AssetManager(this.context, config.pathPrefix);\n\t\tthis.input = new Input(canvas);\n\n\t\tif (config.app.loadAssets) config.app.loadAssets(this);\n\n\t\tlet loop = () => {\n\t\t\tif (this.disposed) return;\n\t\t\trequestAnimationFrame(loop);\n\t\t\tthis.time.update();\n\t\t\tif (config.app.update) config.app.update(this, this.time.delta);\n\t\t\tif (config.app.render) config.app.render(this);\n\t\t}\n\n\t\tlet waitForAssets = () => {\n\t\t\tif (this.disposed) return;\n\t\t\tif (this.assetManager.isLoadingComplete()) {\n\t\t\t\tif (this.assetManager.hasErrors()) {\n\t\t\t\t\tif (config.app.error) config.app.error(this, this.assetManager.getErrors());\n\t\t\t\t} else {\n\t\t\t\t\tif (config.app.initialize) config.app.initialize(this);\n\t\t\t\t\tloop();\n\t\t\t\t}\n\t\t\t\treturn;\n\t\t\t}\n\t\t\trequestAnimationFrame(waitForAssets);\n\t\t}\n\t\trequestAnimationFrame(waitForAssets);\n\t}\n\n\t/** Clears the canvas with the given color. The color values are given in the range [0,1]. */\n\tclear (r: number, g: number, b: number, a: number) {\n\t\tthis.gl.clearColor(r, g, b, a);\n\t\tthis.gl.clear(this.gl.COLOR_BUFFER_BIT);\n\t}\n\n\t/** Disposes the app, so the update() and render() functions are no longer called. Calls the dispose() callback.*/\n\tdispose () {\n\t\tif (this.config.app.dispose) this.config.app.dispose(this);\n\t\tthis.disposed = true;\n\t}\n}\n"]}
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