所以我试图用一个名为“diffMenu”的难度菜单场景来替换 HelloWorld 场景。它在 XCode 上运行良好，所以我转到 Eclipse 来测试 Android 端并得到一个错误，上面写着“对 `diffMenu::scene() 的未定义引用”我已将 diffMenu.ccp 添加到 Android.mk 但我仍然得到错误。
Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := game_shared
LOCAL_MODULE_FILENAME := libgame
LOCAL_SRC_FILES := helloworld/main.cpp \
../../Classes/AppDelegate.cpp \
../../Classes/HelloWorldScene.cpp \
../../Classes/diffMenu.ccp
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../Classes
LOCAL_WHOLE_STATIC_LIBRARIES := cocos2dx_static cocosdenshion_static
include $(BUILD_SHARED_LIBRARY)
$(call import-module,CocosDenshion/android) $(call import-module,cocos2dx)
HelloWorldScene.ccp
#include "HelloWorldScene.h"
#include <sys/time.h>
#include "diffMenu.h"
USING_NS_CC;
//using namespace CocosDenshion ;
CCScene* HelloWorld::scene()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
HelloWorld *layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool HelloWorld::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
CCSize size = CCDirector::sharedDirector()->getWinSize();
CCSprite* background = CCSprite::create("menuBackground.jpg");
//-------------------Background
background->setPosition(ccp(170, 240));
this->addChild(background, -1);
//-------------------Green Play Now
CCLabelTTF *playLabel = CCLabelTTF::create("Play Now", "American Typewriter", 40.0);
CCMenuItemLabel *playNow = CCMenuItemLabel::create(playLabel, this, menu_selector(HelloWorld::play));
playNow->setPosition(ccp(0, 50));
playNow->setColor(ccc3(0, 255, 0));
//-------------------White Difficulty
CCLabelTTF *diffLabel = CCLabelTTF::create("Difficulty", "American Typewriter", 40.0);
CCMenuItemLabel *difficulty = CCMenuItemLabel::create(diffLabel, this, menu_selector(HelloWorld::diff));
difficulty->setPosition(ccp(0, -25));
difficulty->setColor(ccc3(255, 255, 255));
//-------------------White Language
CCLabelTTF *langLabel = CCLabelTTF::create("Language", "American Typewriter", 40.0);
CCMenuItemLabel *language = CCMenuItemLabel::create(langLabel, this, menu_selector(HelloWorld::lang));
language->setPosition(ccp(0, -100));
language->setColor(ccc3(255, 0, 0));
//-------------------Red Credits
CCLabelTTF *credLabel = CCLabelTTF::create("Credits", "American Typewriter", 40.0);
CCMenuItemLabel *credits = CCMenuItemLabel::create(credLabel, this, menu_selector(HelloWorld::cred));
credits->setPosition(ccp(0, -175));
credits->setColor(ccc3(0, 0, 0));
//-------------------Add Menu
CCMenu *menu = CCMenu::create(playNow,difficulty,language,credits, NULL);
this->addChild(menu,2) ;
return true;
}
void HelloWorld::diff()
{
CCDirector::sharedDirector()->setDepthTest(true);
CCDirector::sharedDirector()->replaceScene(CCTransitionPageTurn::create(1.0f, diffMenu::scene(), false));
}
void HelloWorld::play(){
}
void HelloWorld::cred(){
}
void HelloWorld::lang(){
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
}
diffMenu.h
#ifndef __diffMenu_SCENE_H__
#define __diffMenu_SCENE_H__
#include "cocos2d.h"
USING_NS_CC ;
class diffMenu : public cocos2d::CCLayer
{
public:
// Here's a difference. Method 'init' in cocos2d-x returns bool, instead of returning 'id' in cocos2d-iphone
virtual bool init();
// there's no 'id' in cpp, so we recommand to return the exactly class pointer
static cocos2d::CCScene* scene();
// a selector callback
//void menuCloseCallback(CCObject* pSender);
// implement the "static node()" method manually
LAYER_CREATE_FUNC(diffMenu);
void play();
void diff();
};
#endif // __diffMenu_SCENE_H__
diffMenu.ccp
#include "SimpleAudioEngine.h"
#include "diffMenu.h"
using namespace cocos2d;
using namespace CocosDenshion;
CCScene* diffMenu::scene()
{
// 'scene' is an autorelease object
CCScene *scene = CCScene::create();
// 'layer' is an autorelease object
diffMenu *layer = diffMenu::create();
// add layer as a child to scene
scene->addChild(layer);
// return the scene
return scene;
}
// on "init" you need to initialize your instance
bool diffMenu::init()
{
//////////////////////////////
// 1. super init first
if ( !CCLayer::init() )
{
return false;
}
/////////////////////////////
// 2. add a menu item with "X" image, which is clicked to quit the program
// you may modify it.
// add a "close" icon to exit the progress. it's an autorelease object
/////////////////////////////
// 3. add your codes below...
// add a label shows "Hello World"
// create and initialize a label
CCLabelTTF* pLabel = CCLabelTTF::create("Hello World", "Thonburi", 34);
// ask director the window size
CCSize size = CCDirector::sharedDirector()->getWinSize();
// position the label on the center of the screen
pLabel->setPosition( ccp(size.width / 2, size.height - 20) );
// add the label as a child to this layer
this->addChild(pLabel, 1);
// add "diffMenu" splash screen"
CCSprite* pSprite = CCSprite::create("pencilBackground.jpg");
pSprite->setScale(.7);
pSprite->setRotation(-1);
// position the sprite on the center of the screen
pSprite->setPosition( ccp(size.width/2-80, size.height/2) );
// add the sprite as a child to this layer
this->addChild(pSprite, 0);
return true;
}
/*void diffMenu::menuCloseCallback(CCObject* pSender)
{
CCDirector::sharedDirector()->end();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
exit(0);
#endif
}*/