【iOS】Cocos2dx封装为view方便做3D动画效果

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写在前面

本文件只是将Cocos2dx 封装为一个 UIView，方便直接添加使用

使用的 coco2d-x 版本为 3.13.1

添加过程

首先将 ~/cocos2d/build/cocos2d_lib.xcodeproj 添加到工程中

然后对照new出来的工程，修改配置：

然后添加两个 Header Search Paths，同样对照样本工程

设置TARGETS中Header Search Paths


PROJECT中设置Header Search Paths，相对路径


设置预处理的宏定义，Debug和Release

修改Custom Compiler Flags

至此，不出意外编译可以成功了。

设置view

然后在CocosViewController（我自己建立的测试界面）中设置弹出HelloWorld界面，HelloWorld界面的两个类 AppDelegate 和 HelloWorldScene要添加到工程中。

注意这个文件是C++混编，所以 CocosViewController.m 文件要改后缀为 CocosViewController.mm

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#import "CocosViewController.h"

#import "CocosAppDelegate.h"
#import "platform/ios/CCEAGLView-ios.h"
#import "platform/ios/CCDirectorCaller-ios.h"

// cocos2d application instance
static CocosAppDelegate s_sharedApplication;

@interface CocosViewController ()

@property (weak, nonatomic) UIView *blackView;
@property (weak, nonatomic) CCEAGLView *eaglView;

@end

@implementation CocosViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    self.view.backgroundColor = [UIColor whiteColor];
    [self drawButton];
    
}


#pragma mark - 绘制按钮
- (void)drawButton
{
    UIButton *cocoaButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 70, 80, 50)];
    [cocoaButton setTitle:@"动画开关" forState:UIControlStateNormal];
    [cocoaButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
    [cocoaButton addTarget:self action:@selector(presentCocosView) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:cocoaButton];
    
}

- (void)presentView
{
    if (self.blackView) {
        [self.blackView removeFromSuperview];
        self.blackView = nil;
    } else {
        UIView *view = [[UIView alloc] initWithFrame:CGRectMake(50, 120, [UIScreen mainScreen].bounds.size.width / 2.0, [UIScreen mainScreen].bounds.size.height / 2.0)];
        [view setBackgroundColor:[UIColor blackColor]];
        [self.view addSubview:view];
        
        self.blackView = view;
    }
}

- (void)presentCocosView
{
    if (self.eaglView) {
        [self destroyCocosView];
    } else {
        [self addCocosView];
    }
}

- (void)addCocosView
{
    cocos2d::Application *app = cocos2d::Application::getInstance();
    
    // Initialize the GLView attributes
    app->initGLContextAttrs();
    cocos2d::GLViewImpl::convertAttrs();
    
    // Initialize the CCEAGLView
    CCEAGLView *eaglView = [CCEAGLView viewWithFrame: CGRectMake(0, 120, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height * 0.8)
                                         pixelFormat: (__bridge NSString *)cocos2d::GLViewImpl::_pixelFormat
                                         depthFormat: cocos2d::GLViewImpl::_depthFormat
                                  preserveBackbuffer: NO
                                          sharegroup: nil
                                       multiSampling: NO
                                     numberOfSamples: 0 ];
    
    // Enable or disable multiple touches
    [eaglView setMultipleTouchEnabled:NO];
    
    // Set EAGLView as view of RootViewController
    //    self.view = eaglView;
    [self.view addSubview:eaglView];
    self.eaglView = eaglView;
    
    cocos2d::GLView *glview = cocos2d::GLViewImpl::createWithEAGLView((__bridge void *)eaglView);
    
    //set the GLView as OpenGLView of the Director
    cocos2d::Director::getInstance()->setOpenGLView(glview);
    
    
    //run the cocos2d-x game scene
    app->run();
}

- (void)destroyCocosView
{
    //    cocos2d::Director::getInstance()->getTextureCache()
    cocos2d::PoolManager::destroyInstance();
    cocos2d::Director::getInstance()->purgeCachedData();
    cocos2d::Director::getInstance()->purgeDirector();
    
    [CCDirectorCaller destroy];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

此时就可以重复开启关闭cocos动画界面了。

释放cocos单例

检查单例

这里先对所有的cocos2dx中的单例进行检查，主要是想用Director销毁其他的单例，经过检查的结果也证明了王哲说的：用Director来管理项目中的单例，具体释放在上面的 destroyCocosView 方法中。即为：

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- (void)destroyCocosView
{
    //    cocos2d::Director::getInstance()->getTextureCache()
    cocos2d::PoolManager::destroyInstance();
    cocos2d::Director::getInstance()->purgeCachedData();
    cocos2d::Director::getInstance()->purgeDirector();
    
    [CCDirectorCaller destroy];
}

下面为检查结果表格：

单例 是否被cocostudio释放 启动时是否被实例化
ArmatureNodeReader::destroyInstance() 是 否
ButtonReader::destroyInstance() 是 否
ActionManagerEx::destroyInstance() 是 CCActionNode 和 CCSGUIReader
BoneNodeReader::destroyInstance() 否 否
ActionTimelineCache::destroyInstance() CSLoader销毁时会调用这个销毁 CSLoader
Animation3DCache::destroyInstance() 否 否
AnimationCache::destroyInstance() 是 CCNodelLoader 和 CCSprite
ScriptEngineManager::destroyInstance() 否 有一堆类用到这个实例，但没有被销毁，但可以用Application销毁
PoolManager::destroyInstance() 否 同上
ArmatureDataManager::destroyInstance() 是 否
AsyncTaskPool::destroyInstance() 是 其他3个类有用到
Configuration::destroyInstance() 是 二十几个类用到
FileUtils::destroyInstance() 是
GLProgramCache::destroyInstance() 是
GLProgramStateCache::destroyInstance() 是
NodeLoaderLibrary::destroyInstance() 否 否
__NotificationCenter::destroyInstance() 否 否
GUIReader::destroyInstance() 是 十几个类调用
Sprite3DCache::getInstance() 否 自己调用
Sprite3DMaterialCache::destroyInstance() 否
SpriteFrameCache::destroyInstance() 是
SceneReader::destroyInstance() 是
DictionaryHelper::destroyInstance() 是
UserDefault::destroyInstance() 是
CheckBoxReader::destroyInstance() 是
NodeReader::destroyInstance() 是
SingleNodeReader::destroyInstance() 是
SpriteReader::destroyInstance() 是
ParticleReader::destroyInstance() 是
GameMapReader::destroyInstance() 是
ProjectNodeReader::destroyInstance() 是
ComAudioReader::destroyInstance() 是
WidgetReader::destroyInstance() 是
CheckBoxReader::destroyInstance() 是
ImageViewReader::destroyInstance() 是
TextBMFontReader::destroyInstance() 是
TextReader::destroyInstance() 是
TextFieldReader::destroyInstance() 是
TextAtlasReader::destroyInstance() 是
LoadingBarReader::destroyInstance() 是
SliderReader::destroyInstance() 是
LayoutReader::destroyInstance() 是
ScrollViewReader::destroyInstance() 是
PageViewReader::destroyInstance() 是
ListViewReader::destroyInstance() 是
Node3DReader::destroyInstance() 是
Sprite3DReader::destroyInstance() 是
UserCameraReader::destroyInstance() 是
Particle3DReader::destroyInstance() 是
CSLoader::destroyInstance() 是
FlatBuffersSerialize::destroyInstance() 否 一堆调用这个
GameNode3DReader::destroyInstance() 否 否
HttpClient::destroyInstance() 否 否
Light3DReader::destroyInstance() 否 否
JsonLocalizationManager::destroyInstance() 否 否
BinLocalizationManager::destroyInstance() 否 否
ObjectFactory::destroyInstance() 否 是
SkeletonNodeReader::destroyInstance() 否 否
SocketIO::destroyInstance() 否 否
TabControlReader::destroyInstance() 否 否
TabHeaderReader::destroyInstance() 否 否
TabItemReader::destroyInstance() 否 否
TriggerMng::destroyInstance() 是