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+var additiveBlendingDemo = function(canvas, bgColor) {
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+ var COLOR_INNER = new spine.Color(0.8, 0, 0, 0.5);
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+ var COLOR_OUTER = new spine.Color(0.8, 0, 0, 0.8);
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+ var COLOR_INNER_SELECTED = new spine.Color(0.0, 0, 0.8, 0.5);
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+ var COLOR_OUTER_SELECTED = new spine.Color(0.0, 0, 0.8, 0.8);
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+ var HANDLE_SIZE = 0.10;
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+
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+ var gl, renderer, input, assetManager;
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+ var skeleton, state, bounds;
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+ var timeKeeper, loadingScreen;
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+ var target = null;
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+ var dragging = false;
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+ var handle = new spine.Vector2();
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+ var coords = new spine.webgl.Vector3(), temp = new spine.webgl.Vector3(), temp2 = new spine.Vector2(), temp3 = new spine.webgl.Vector3();
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+ var isPlaying = true;
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+
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+ var left, right, up, down;
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+
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+ var DEMO_NAME = "AdditiveBlendingDemo";
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+
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+ if (!bgColor) bgColor = new spine.Color(235 / 255, 239 / 255, 244 / 255, 1);
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+
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+ function isMobileDevice() {
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+ return (typeof window.orientation !== "undefined") || (navigator.userAgent.indexOf('IEMobile') !== -1);
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+ };
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+
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+ function init () {
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+ canvas.width = canvas.clientWidth; canvas.height = canvas.clientHeight;
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+ gl = canvas.ctx.gl;
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+
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+ renderer = new spine.webgl.SceneRenderer(canvas, gl);
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+ assetManager = spineDemos.assetManager;
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+ var textureLoader = function(img) { return new spine.webgl.GLTexture(gl, img); };
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+ assetManager.loadTexture(DEMO_NAME, textureLoader, "atlas2.png");
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+ assetManager.loadText(DEMO_NAME, "atlas2.atlas");
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+ assetManager.loadJson(DEMO_NAME, "demos.json");
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+ timeKeeper = new spine.TimeKeeper();
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+ }
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+
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+ function loadingComplete () {
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+ var atlas = new spine.TextureAtlas(assetManager.get(DEMO_NAME, "atlas2.atlas"), function(path) {
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+ return assetManager.get(DEMO_NAME, path);
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+ });
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+ var atlasLoader = new spine.AtlasAttachmentLoader(atlas);
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+ var skeletonJson = new spine.SkeletonJson(atlasLoader);
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+ var skeletonData = skeletonJson.readSkeletonData(assetManager.get(DEMO_NAME, "demos.json")["owl"]);
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+ skeleton = new spine.Skeleton(skeletonData);
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+ state = new spine.AnimationState(new spine.AnimationStateData(skeleton.data));
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+
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+ state.setAnimation(0, "idle", true);
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+ left = state.setAnimation(1, "blink", true);
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+
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+ left = state.setAnimation(2, "left", true);
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+ right = state.setAnimation(3, "right", true);
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+ up = state.setAnimation(4, "up", true);
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+ down = state.setAnimation(5, "down", true);
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+
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+
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+ left.mixBlend = spine.MixBlend.add;
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+ left.alpha = 0;
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+ right.mixBlend = spine.MixBlend.add;
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+ right.alpha = 0;
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+ up.mixBlend = spine.MixBlend.add;
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+ up.alpha = 0;
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+ down.mixBlend = spine.MixBlend.add;
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+ down.alpha = 0;
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+
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+ state.apply(skeleton);
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+ skeleton.updateWorldTransform();
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+ var offset = new spine.Vector2();
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+ bounds = new spine.Vector2();
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+ skeleton.getBounds(offset, bounds, []);
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+
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+ renderer.camera.position.x = offset.x + bounds.x / 2;
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+ renderer.camera.position.y = offset.y + bounds.y / 2;
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+
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+ renderer.skeletonDebugRenderer.drawMeshHull = false;
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+ renderer.skeletonDebugRenderer.drawMeshTriangles = false;
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+
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+ setupInput();
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+ }
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+
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+ function calculateBlend (x, y, isPageCoords) {
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+ if (isPageCoords) {
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+ var canvasBounds = canvas.getBoundingClientRect();
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+ x = Math.max(0, Math.min(canvasBounds.width, x - canvasBounds.x));
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+ y = Math.max(0, Math.min(canvasBounds.height, y - canvasBounds.y));
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+ }
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+ x = x / canvas.width;
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+ y = y / canvas.height;
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+ left.alpha = (Math.max(x, 0.5) - 0.5) * 2;
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+ right.alpha = (0.5 - Math.min(x, 0.5)) * 2;
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+ up.alpha = (0.5 - Math.min(y, 0.5)) * 2;
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+ down.alpha = (Math.max(y, 0.5) - 0.5) * 2;
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+ }
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+
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+ function setupInput () {
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+ if (!isMobileDevice()) {
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+ document.addEventListener("mousemove", function (event) {
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+ calculateBlend(event.clientX, event.clientY, true);
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+ }, false);
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+ } else {
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+ var input = new spine.webgl.Input(canvas);
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+ input.addListener({
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+ down: function(x, y) {
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+ renderer.camera.screenToWorld(coords.set(x, y, 0), canvas.width, canvas.height);
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+ if (temp.set(handle.x, handle.y, 0).distance(coords) < canvas.width * HANDLE_SIZE) {
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+ dragging = true;
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+ }
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+ },
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+ up: function(x, y) {
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+ dragging = false;
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+ },
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+ dragged: function(x, y) {
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+ if (dragging) {
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+ renderer.camera.screenToWorld(coords.set(x, y, 0), canvas.width, canvas.height);
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+ handle.x = coords.x;
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+ handle.y = coords.y;
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+ calculateBlend(x, y, false);
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+ }
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+ }
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+ });
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+ }
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+ }
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+
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+ function render () {
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+ timeKeeper.update();
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+ var delta = timeKeeper.delta;
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+
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+ state.update(delta);
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+ state.apply(skeleton);
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+ skeleton.updateWorldTransform();
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+
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+ renderer.camera.viewportWidth = bounds.x * 1.4;
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+ renderer.camera.viewportHeight = bounds.y * 1.4;
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+ renderer.resize(spine.webgl.ResizeMode.Fit);
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+
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+ gl.clearColor(bgColor.r, bgColor.g, bgColor.b, bgColor.a);
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+ gl.clear(gl.COLOR_BUFFER_BIT);
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+
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+ renderer.begin();
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+ renderer.drawSkeleton(skeleton, true);
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+
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+ if (isMobileDevice()) {
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+ gl.lineWidth(2);
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+ renderer.circle(true, handle.x, handle.y, canvas.width * HANDLE_SIZE, COLOR_INNER);
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+ renderer.circle(false, handle.x, handle.y, canvas.width * HANDLE_SIZE, COLOR_OUTER);
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+ gl.lineWidth(1);
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+ }
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+
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+ renderer.end();
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+ }
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+
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+ additiveBlendingDemo.loadingComplete = loadingComplete;
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+ additiveBlendingDemo.render = render;
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+ additiveBlendingDemo.DEMO_NAME = DEMO_NAME;
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+ init();
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+};
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badlogic