Fix crashes

cpp/src/MainScene.cpp

@@ -89,8 +89,7 @@ bool MainScene::init()
         Director::getInstance()->replaceScene(Chapter4::createScene());
     });
     vMenuItems.at(3)->setCallback([&](cocos2d::Ref *sender) {
-        auto chapter5 = Chapter5();
-        Director::getInstance()->replaceScene(chapter5.getScene1());
+        Director::getInstance()->replaceScene(Chapter5::createScene());
     });
     vMenuItems.at(4)->setCallback([&](cocos2d::Ref *sender) {
         Director::getInstance()->replaceScene(Chapter6::createScene());

cpp/src/chapter2/Chapter2.h

@@ -1,5 +1,5 @@
-#ifndef __HELLOWORLD_SCENE_H__
-#define __HELLOWORLD_SCENE_H__
+#ifndef __CHAPTER2_H__
+#define __CHAPTER2_H__
 
 #include "cocos2d.h"
 
@@ -13,4 +13,4 @@ class Chapter2
         static cocos2d::Scene* createScene();
 };
 
-#endif // __HELLOWORLD_SCENE_H__
+#endif // __CHAPTER2_H__

cpp/src/chapter5/Chapter5.cpp

@@ -1,166 +1,77 @@
 #include "Chapter5.h"
+#include "Chapter5_1.h"
+#include "Chapter5_2.h"
+#include "Chapter5_3.h"
 
 USING_NS_CC;
 
-Chapter5::Chapter5()
+Scene* Chapter5::createScene()
 {
-    initialize();
-}
+    // 'scene' is an autorelease object
+    auto scene = Scene::create();
+
+    // 'layer' is an autorelease object
+    auto layer = Chapter5::create();
 
-Chapter5::~Chapter5() { }
+    // add layer as a child to scene
+    scene->addChild(layer);
 
-void Chapter5::initialize()
+    // return the scene
+    return scene;
+}
+
+// on "init" you need to initialize your instance
+bool Chapter5::init()
 {
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    // super init first
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    if (!Node::init())
+    {
+        return false;
+    }
+
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     // some upfront items that we need
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    auto dirs = Director::getInstance();
-    Size visibleSize = dirs->getVisibleSize();
-    Vec2 origin = dirs->getVisibleOrigin();
-
+    Size visibleSize = Director::getInstance()->getVisibleSize();
+    Vec2 origin = Director::getInstance()->getVisibleOrigin();
+
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    // create a scene
-    // 'scene' is an autorelease object
+    // create a label
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    scene1 = Scene::create();
-
+    auto thisSceneLabel = Label::createWithTTF("This Is A Scene", "Marker Felt.ttf", 32);
+    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
+
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    // create a node to hold non-sprites.
+    // create a menu item
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    auto nodeItems = Node::create();
-    nodeItems->setName("nodeItems");
-
+    auto menuItem = MenuItemFont::create("Make A New Scene");
+    menuItem->setFontNameObj("Marker Felt.ttf");
+    menuItem->setFontSizeObj(32);
+    menuItem->setPosition(Vec2(origin.x + visibleSize.width/2, origin.y + visibleSize.height/2).x,
+                          (Vec2(origin.x + visibleSize.width/2, origin.y + visibleSize.height).y - 80));
+    menuItem->setCallback([&] (cocos2d::Ref* sender) {
+        Director::getInstance()->replaceScene(Chapter5_1::createScene());
+    });
+
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    // create a node to hold menu
     // create a menu
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    auto menuNode = Node::create();
-    menuNode->setName("menuNode");
-    int index = 2;
-
-    auto thisSceneLabel = Label::createWithTTF("This Is A Scene", "Marker Felt.ttf", 32);
-    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
-    scene1->addChild(thisSceneLabel, 1);
-
-    auto menuItem1 = MenuItemFont::create("Make A New Scene");
-    menuItem1->setFontNameObj("Marker Felt.ttf");
-    menuItem1->setFontSizeObj(32);
-    menuItem1->setName("menuItem1");
-    menuItem1->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
-                           (Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - (index) * 40));
-    menuItem1->setCallback([&](cocos2d::Ref *sender) {
-
-        Director::getInstance()->replaceScene(createScene2());
-    });
-
-    auto menu = Menu::create(menuItem1, NULL);
-    menu->setName("menu");
-    menuNode->addChild(menu, 1);
+    auto menu = Menu::create(menuItem, NULL);
     menu->setPosition(Vec2::ZERO);
-
-    scene1->addChild(menuNode, 2);
-}
 
-Scene* Chapter5::createScene2()
-{
-    auto dirs = Director::getInstance();
-    Size visibleSize = dirs->getVisibleSize();
-    Vec2 origin = dirs->getVisibleOrigin();
-
-    scene2 = Scene::create();
-    scene2->retain();
-
-    auto nodeItems = Node::create();
-    nodeItems->setName("nodeItems");
-
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    // create a node to hold menu
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     auto menuNode = Node::create();
-    menuNode->setName("menuNode");
-    int index = 2;
-
-    auto thisSceneLabel = Label::createWithTTF("This Is A New Scene", "Marker Felt.ttf", 32);
-    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
-    scene2->addChild(thisSceneLabel, 1);
-
-    auto menuItem1 = MenuItemFont::create("Make a New Scene Using a Transition Fade");
-    menuItem1->setFontNameObj("Marker Felt.ttf");
-    menuItem1->setFontSizeObj(32);
-    menuItem1->setName("menuItem1");
-    menuItem1->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
-                           (Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - (index) * 40));
-    menuItem1->setCallback([&](cocos2d::Ref *sender) {
-
-        Director::getInstance()->replaceScene(TransitionFade::create(0.5, createScene3(), Color3B(0,255,255)));
-    });
-
-    auto menu = Menu::create(menuItem1, NULL);
-    menu->setName("menu");
-    menuNode->addChild(menu, 1);
-    menu->setPosition(Vec2::ZERO);
-
-    scene2->addChild(menuNode, 2);
-
-    return scene2;
-}
 
-Scene* Chapter5::createScene3()
-{
-    auto dirs = Director::getInstance();
-    Size visibleSize = dirs->getVisibleSize();
-    Vec2 origin = dirs->getVisibleOrigin();
-
-    scene3 = Scene::create();
-    scene3->retain();
-
-    auto nodeItems = Node::create();
-    nodeItems->setName("nodeItems");
-
-    auto menuNode = Node::create();
-    menuNode->setName("menuNode");
-    int index = 2;
-
-    auto thisSceneLabel = Label::createWithTTF("This Scene used a Transition!", "Marker Felt.ttf", 32);
-    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
-    scene3->addChild(thisSceneLabel, 1);
-
-    auto menuItem1 = MenuItemFont::create("Make a New Scene Using a Flip");
-    menuItem1->setFontNameObj("Marker Felt.ttf");
-    menuItem1->setFontSizeObj(32);
-    menuItem1->setName("menuItem1");
-    menuItem1->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
-                           (Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - (index) * 40));
-    menuItem1->setCallback([&](cocos2d::Ref *sender) {
-
-        Director::getInstance()->replaceScene(TransitionFlipX::create(2, createScene4()));
-    });
-
-    auto menu = Menu::create(menuItem1, NULL);
-    menu->setName("menu");
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    // add child nodes to containers
+    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     menuNode->addChild(menu, 1);
-    menu->setPosition(Vec2::ZERO);
-
-    scene3->addChild(menuNode, 2);
+    this->addChild(thisSceneLabel, 1);
+    this->addChild(menuNode, 2);
 
-    return scene3;
-}
-
-Scene* Chapter5::createScene4()
-{
-    auto dirs = Director::getInstance();
-    Size visibleSize = dirs->getVisibleSize();
-    Vec2 origin = dirs->getVisibleOrigin();
-
-    scene4 = Scene::create();
-    scene4->retain();
-
-    auto nodeItems = Node::create();
-    nodeItems->setName("nodeItems");
-
-    auto menuNode = Node::create();
-    menuNode->setName("menuNode");
-
-    auto thisSceneLabel = Label::createWithTTF("This Scene used a Flip!", "Marker Felt.ttf", 32);
-    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
-    scene4->addChild(thisSceneLabel, 1);
-
-    return scene4;
+    return true;
 }

cpp/src/chapter5/Chapter5.h

@@ -3,27 +3,16 @@
 
 #include "cocos2d.h"
 
-USING_NS_CC;
-
-class Chapter5 : public Ref
+class Chapter5 : public cocos2d::Node
 {
-    public:
-        Chapter5();
-        ~Chapter5();
-
-        void initialize();
-        Scene* createScene2();
-        Scene* createScene3();
-        Scene* createScene4();
-
-        inline Scene* getScene1(){ return scene1; };
-
-    protected:
-        Scene* scene1;
-        Scene* scene2;
-        Scene* scene3;
-        Scene* scene4;
-
+public:
+    // there's no 'id' in cpp, so we recommend returning the class instance pointer
+    static cocos2d::Scene* createScene();
+
+    virtual bool init();
+
+    // implement the "static create()" method manually
+    CREATE_FUNC(Chapter5);
 };
 
 #endif // __CHAPTER5_H__

cpp/src/chapter5/Chapter5_1.cpp

@@ -0,0 +1,43 @@
+#include "Chapter5_1.h"
+#include "Chapter5_2.h"
+#include "Chapter5.h"
+
+USING_NS_CC;
+
+Scene* Chapter5_1::createScene()
+{
+    // some upfront items that we need
+    Size visibleSize = Director::getInstance()->getVisibleSize();
+    Vec2 origin = Director::getInstance()->getVisibleOrigin();
+
+    // create a scene
+    auto scene = Scene::create();
+
+    // add title
+    auto thisSceneLabel = Label::createWithTTF("This Is A New Scene", "Marker Felt.ttf", 32);
+    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
+
+    // add the menu item for Make a New Scene Using a Transition Fade
+    auto menuItem = MenuItemFont::create("Make a New Scene Using a Transition Fade");
+    menuItem->setFontNameObj("Marker Felt.ttf");
+    menuItem->setFontSizeObj(32);
+    menuItem->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
+                          (Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - 80));
+    menuItem->setCallback([&] (cocos2d::Ref* sender) {
+        Director::getInstance()->replaceScene(TransitionFade::create(0.5, Chapter5_2::createScene(), Color3B(0, 255, 255)));
+    });
+
+    // add menu
+    auto menu = Menu::create(menuItem, NULL);
+    menu->setPosition(Vec2::ZERO);
+
+    // add node to hold menu
+    auto menuNode = Node::create();
+
+    // add child nodes to containers
+    menuNode->addChild(menu, 1);
+    scene->addChild(thisSceneLabel, -1);
+    scene->addChild(menuNode, 2);
+
+    return scene;
+}

cpp/src/chapter5/Chapter5_1.h

@@ -0,0 +1,14 @@
+#ifndef __CHAPTER_5_1_H__
+#define __CHAPTER_5_1_H__
+
+#include "cocos2d.h"
+
+USING_NS_CC;
+
+class Chapter5_1 : public Ref
+{
+public:
+    static cocos2d::Scene* createScene();
+};
+
+#endif // __CHAPTER_5_1_H__

cpp/src/chapter5/Chapter5_2.cpp

@@ -0,0 +1,43 @@
+#include "Chapter5_2.h"
+#include "Chapter5_3.h"
+#include "Chapter5.h"
+
+USING_NS_CC;
+
+Scene* Chapter5_2::createScene()
+{
+    // some upfront items that we need
+    Size visibleSize = Director::getInstance()->getVisibleSize();
+    Vec2 origin = Director::getInstance()->getVisibleOrigin();
+
+    // create a scene
+    auto scene = Scene::create();
+
+    // add title
+    auto thisSceneLabel = Label::createWithTTF("This Scene used a Transition!", "Marker Felt.ttf", 32);
+    thisSceneLabel->setPosition(Vec2(visibleSize.width/2, visibleSize.height/2));
+
+    // add the menu item for Make a New Scene Using a Flip
+    auto menuItem = MenuItemFont::create("Make a New Scene Using a Flip");
+    menuItem->setFontNameObj("Marker Felt.ttf");
+    menuItem->setFontSizeObj(32);
+    menuItem->setPosition(Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height/2).x,
+                          (Vec2(origin.x+visibleSize.width/2, origin.y+visibleSize.height).y - 80));
+    menuItem->setCallback([&] (cocos2d::Ref* sender) {
+        Director::getInstance()->replaceScene(TransitionFlipX::create(2, Chapter5_3::createScene()));
+    });
+
+    // add menu
+    auto menu = Menu::create(menuItem, NULL);
+    menu->setPosition(Vec2::ZERO);
+
+    // add node to hold menu
+    auto menuNode = Node::create();
+
+    // add child nodes to containers
+    menuNode->addChild(menu, 1);
+    scene->addChild(thisSceneLabel, -1);
+    scene->addChild(menuNode, 2);
+
+    return scene;
+}

cpp/src/chapter5/Chapter5_2.h

@@ -0,0 +1,14 @@
+#ifndef __CHAPTER_5_2_H__
+#define __CHAPTER_5_2_H__
+
+#include "cocos2d.h"
+
+USING_NS_CC;
+
+class Chapter5_2 : public Ref
+{
+public:
+    static cocos2d::Scene* createScene();
+};
+
+#endif // __CHAPTER_5_2_H__