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node_modules/@esotericsoftware/spine-webgl/dist/SpineCanvas.js

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated April 5, 2025. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2025, 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 { TimeKeeper, AssetManager, ManagedWebGLRenderingContext, SceneRenderer, Input } from "./index.js";
+/** Manages the life-cycle and WebGL context of a {@link SpineCanvasApp}. The app loads
+ * assets and initializes itself, then updates and renders its state at the screen refresh rate. */
+export class SpineCanvas {
+    config;
+    context;
+    /** Tracks the current time, delta, and other time related statistics. */
+    time = new TimeKeeper();
+    /** The HTML canvas to render to. */
+    htmlCanvas;
+    /** The WebGL rendering context. */
+    gl;
+    /** The scene renderer for easy drawing of skeletons, shapes, and images. */
+    renderer;
+    /** The asset manager to load assets with. */
+    assetManager;
+    /** The input processor used to listen to mouse, touch, and keyboard events. */
+    input;
+    disposed = false;
+    /** Constructs a new spine canvas, rendering to the provided HTML canvas. */
+    constructor(canvas, config) {
+        this.config = config;
+        if (!config.pathPrefix)
+            config.pathPrefix = "";
+        if (!config.app)
+            config.app = {
+                loadAssets: () => { },
+                initialize: () => { },
+                update: () => { },
+                render: () => { },
+                error: () => { },
+                dispose: () => { },
+            };
+        if (!config.webglConfig)
+            config.webglConfig = { alpha: true };
+        this.htmlCanvas = canvas;
+        this.context = new ManagedWebGLRenderingContext(canvas, config.webglConfig);
+        this.renderer = new SceneRenderer(canvas, this.context);
+        this.gl = this.context.gl;
+        this.assetManager = new AssetManager(this.context, config.pathPrefix);
+        this.input = new Input(canvas);
+        if (config.app.loadAssets)
+            config.app.loadAssets(this);
+        let loop = () => {
+            if (this.disposed)
+                return;
+            requestAnimationFrame(loop);
+            this.time.update();
+            if (config.app.update)
+                config.app.update(this, this.time.delta);
+            if (config.app.render)
+                config.app.render(this);
+        };
+        let waitForAssets = () => {
+            if (this.disposed)
+                return;
+            if (this.assetManager.isLoadingComplete()) {
+                if (this.assetManager.hasErrors()) {
+                    if (config.app.error)
+                        config.app.error(this, this.assetManager.getErrors());
+                }
+                else {
+                    if (config.app.initialize)
+                        config.app.initialize(this);
+                    loop();
+                }
+                return;
+            }
+            requestAnimationFrame(waitForAssets);
+        };
+        requestAnimationFrame(waitForAssets);
+    }
+    /** Clears the canvas with the given color. The color values are given in the range [0,1]. */
+    clear(r, g, b, a) {
+        this.gl.clearColor(r, g, b, a);
+        this.gl.clear(this.gl.COLOR_BUFFER_BIT);
+    }
+    /** Disposes the app, so the update() and render() functions are no longer called. Calls the dispose() callback.*/
+    dispose() {
+        if (this.config.app.dispose)
+            this.config.app.dispose(this);
+        this.disposed = true;
+    }
+}
+//# 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