AppDelegate.cpp

#include "AppDelegate.h"
#include "HelloWorldScene.h"

#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
#include "IMGUIGLViewImpl.h"
#include "ImGuiLayer.h"
#endif
USING_NS_CC;

static cocos2d::Size designResolutionSize = cocos2d::Size(1136, 640);
static cocos2d::Size smallResolutionSize = cocos2d::Size(480, 320);
static cocos2d::Size mediumResolutionSize = cocos2d::Size(1024, 768);
static cocos2d::Size largeResolutionSize = cocos2d::Size(2048, 1536);

AppDelegate::AppDelegate() {

}

AppDelegate::~AppDelegate() 
{
}

//if you want a different context,just modify the value of glContextAttrs
//it will takes effect on all platforms
void AppDelegate::initGLContextAttrs()
{
    //set OpenGL context attributions,now can only set six attributions:
    //red,green,blue,alpha,depth,stencil
    GLContextAttrs glContextAttrs = {8, 8, 8, 8, 24, 8};

    GLView::setGLContextAttrs(glContextAttrs);
}

// If you want to use packages manager to install more packages, 
// don't modify or remove this function
static int register_all_packages()
{
    return 0; //flag for packages manager
}

bool AppDelegate::applicationDidFinishLaunching() {
    // initialize director
    auto director = Director::getInstance();
    auto glview = director->getOpenGLView();
    if(!glview) {
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
        glview = IMGUIGLViewImpl::createWithRect("HomeTown", Rect(0, 0, designResolutionSize.width, designResolutionSize.height));
#elif (CC_TARGET_PLATFORM == CC_PLATFORM_LINUX)
		glview = GLViewImpl::createWithRect("HomeTown", Rect(0, 0, designResolutionSize.width, designResolutionSize.height));
#else
        glview = GLViewImpl::create("HomeTown");
#endif
        director->setOpenGLView(glview);
    }

    // turn on display FPS
    director->setDisplayStats(true);

    // set FPS. the default value is 1.0/60 if you don't call this
    director->setAnimationInterval(1.0 / 60);

    // Set the design resolution
    glview->setDesignResolutionSize(designResolutionSize.width, designResolutionSize.height, ResolutionPolicy::NO_BORDER);
    register_all_packages();
    // create a scene. it's an autorelease object

	auto scene = Scene::create();
	scene->addChild(HelloWorldScene::create());
    director->runWithScene(scene);

	// auto check when imGUI layer is not added yet.
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32) || (CC_TARGET_PLATFORM == CC_PLATFORM_MAC)
	director->getScheduler()->schedule([=](float dt)
	{
		if(director->getRunningScene()->getChildByName("ImGUILayer") == NULL)
		{
			scene->addChild(ImGuiLayer::create(), INT_MAX, "ImGUILayer");
		}
	}, this, 0,false, "checkImGUI");
#endif
    return true;
}

// This function will be called when the app is inactive. When comes a phone call,it's be invoked too
void AppDelegate::applicationDidEnterBackground() {
    Director::getInstance()->stopAnimation();

    // if you use SimpleAudioEngine, it must be pause
    // SimpleAudioEngine::getInstance()->pauseBackgroundMusic();
}

// this function will be called when the app is active again
void AppDelegate::applicationWillEnterForeground() {
    Director::getInstance()->startAnimation();

    // if you use SimpleAudioEngine, it must resume here
    // SimpleAudioEngine::getInstance()->resumeBackgroundMusic();
}