text: /******************************************************************************
   * Spine Runtimes Software License v2.5
   *
   * Copyright (c) 2013-2016, Esoteric Software
   * All rights reserved.
   *
   * You are granted a perpetual, non-exclusive, non-sublicensable, and
   * non-transferable license to use, install, execute, and perform the Spine
   * Runtimes software and derivative works solely for personal or internal
   * use. Without the written permission of Esoteric Software (see Section 2 of
   * the Spine Software License Agreement), you may not (a) modify, translate,
   * adapt, or develop new applications using the Spine Runtimes or otherwise
   * create derivative works or improvements of the Spine Runtimes or (b) remove,
   * delete, alter, or obscure any trademarks or any copyright, trademark, patent,
   * or other intellectual property or proprietary rights notices on or in the
   * Software, including any copy thereof. Redistributions in binary or source
   * form must include this license and terms.
   *
   * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "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 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 THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *****************************************************************************/
  
  #include "RaptorExample.h"
  #include "TankExample.h"
  #include <spine/extension.h>
  
  USING_NS_CC;
  using namespace spine;
  
  spSwirlVertexEffect* effect = spSwirlVertexEffect_create(400);
  
  Scene* RaptorExample::scene () {
  	Scene *scene = Scene::create();
  	scene->addChild(RaptorExample::create());
  	return scene;
  }
  
  bool RaptorExample::init () {
  	if (!LayerColor::initWithColor(Color4B(128, 128, 128, 255))) return false;
  
  	skeletonNode = SkeletonAnimation::createWithJsonFile("raptor-pro.json", "raptor.atlas", 0.5f);
  	skeletonNode->setAnimation(0, "walk", true);
  	skeletonNode->setAnimation(1, "empty", false);
  	skeletonNode->addAnimation(1, "gungrab", false, 2);
  	skeletonNode->setTwoColorTint(true);
  	
  	effect->centerY = 200;
  	swirlTime = 0;
  	
  	skeletonNode->setVertexEffect(&effect->super);
  
  	skeletonNode->setPosition(Vec2(_contentSize.width / 2, 20));
  	addChild(skeletonNode);
  
  	scheduleUpdate();
  	
  	EventListenerTouchOneByOne* listener = EventListenerTouchOneByOne::create();
  	listener->onTouchBegan = [this] (Touch* touch, Event* event) -> bool {
  		if (!skeletonNode->getDebugBonesEnabled()) {
  			skeletonNode->setDebugBonesEnabled(true);
  			skeletonNode->setDebugMeshesEnabled(true);
  			skeletonNode->setDebugBoundingRectEnabled(true);
  		} else if (skeletonNode->getTimeScale() == 1)
  			skeletonNode->setTimeScale(0.3f);
  		else
  			Director::getInstance()->replaceScene(TankExample::scene());
  		return true;
  	};
  	_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
  
  	return true;
  }
  
  void RaptorExample::update(float fDelta) {
  	swirlTime += fDelta;
  	float percent = fmod(swirlTime, 2);
  	if (percent > 1) percent = 1 - (percent - 1);
  	effect->angle = _spMath_interpolate(_spMath_pow2_apply, -60, 60, percent);
  }
  