cocos2d-x 菜单CCMenu和CCMenuItemImage应用实例

最新推荐文章于 2021-03-15 23:30:46 发布

原创最新推荐文章于 2021-03-15 23:30:46 发布 · 4.0k 阅读

2 ·

CC 4.0 BY-SA版权

cocos2d-x 专栏收录该内容

104 篇文章

订阅专栏

本文通过实例代码介绍了如何使用cocos2d-x中的CCMenu和CCMenuItemImage创建游戏菜单，帮助开发者实现游戏界面的交互功能。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

制作了一个游戏菜单的小例子，效果如下：

LayerMainMenu.h的代码如下：

#pragma once

#include "cocos2d.h"
using namespace cocos2d;

class LayerMainMenu
	: public CCLayer
{
public:
	LayerMainMenu(void);
	~LayerMainMenu(void);

	virtual bool init();

	virtual void onEnterTransitionDidFinish();

	void newGame(CCObject *sender);
	void continueGame(CCObject *sender);
	void setting(CCObject *sender);
	void help(CCObject *sender);
	void exit(CCObject *sender);

	CREATE_FUNC(LayerMainMenu);

};

LayerMainMenu.cpp代码如下：

#include "LayerMainMenu.h"


LayerMainMenu::LayerMainMenu(void)
{
}

LayerMainMenu::~LayerMainMenu(void)
{
}

bool LayerMainMenu::init(){
	bool isRet = false;

	do 
	{
		CC_BREAK_IF(! CCLayer::init());
		//背景图
		CCSprite* pSprite = CCSprite::create("Image/bg_menu.png");
		CC_BREAK_IF(! pSprite);

		// Place the sprite on the center of the screen
		CCSize size = CCDirector::sharedDirector()->getWinSize();
		pSprite->setPosition(ccp(size.width/2, size.height/2));

		// Add the sprite to HelloWorld layer as a child layer.
		this->addChild(pSprite);

		//添加一个半透明黑色图层
		CCLayerColor *layerColor = CCLayerColor::create(ccc4(0,0,0,50));
		this->addChild(layerColor);

		CCSprite* spriteName = CCSprite::create("Image/name_game.png");
		spriteName->setPosition(ccp(size.width/2, size.height-150));
		this->addChild(spriteName);

		//行间距
		int gapLine = 40;

		//菜单子项
		CCMenuItemImage *menuNewGame = CCMenuItemImage::create("Image/button_new_game.png", "Image/button_new_game_pressed.png", this, menu_selector(LayerMainMenu::newGame));
		CCMenuItemImage *menuContinueGame = CCMenuItemImage::create("Image/button_continue_game.png", "Image/button_continue_game_pressed.png", this, menu_selector(LayerMainMenu::continueGame));
		CCMenuItemImage *menuSetting = CCMenuItemImage::create("Image/button_setting.png", "Image/button_setting_pressed.png", this, menu_selector(LayerMainMenu::setting));
		CCMenuItemImage *menuHelp = CCMenuItemImage::create("Image/button_help.png", "Image/button_help_pressed.png", this, menu_selector(LayerMainMenu::help));
		CCMenuItemImage *menuExit = CCMenuItemImage::create("Image/button_exit.png", "Image/button_exit_pressed.png", this, menu_selector(LayerMainMenu::exit));
		
		//一个菜单子项和行间距高度的和
		int heightItem = menuNewGame->getContentSize().height + gapLine;
		//菜单的起始纵坐标
		int yStart = size.height-150-spriteName->getContentSize().height - 50 + menuNewGame->getContentSize().height/2;

		//设置所有菜单子项的坐标(相对于CCMenu的相对坐标)
		menuNewGame->setPosition(ccp(0, 0));
		menuContinueGame->setPosition(ccp(0, -heightItem));
		menuSetting->setPosition(ccp(0, -heightItem*2));
		menuHelp->setPosition(ccp(0, - heightItem*3));
		menuExit->setPosition(ccp(0, - heightItem*4));

		//创建菜单
		CCMenu *menu = CCMenu::create(menuNewGame, menuContinueGame,menuSetting,menuHelp, menuExit, NULL);
		menu->setPosition(size.width/2, yStart);
		this->addChild(menu);

		isRet = true;
	} while (0);

	return isRet;
}

void LayerMainMenu::onEnterTransitionDidFinish(){

}

void LayerMainMenu::newGame(CCObject *sender){

}
void LayerMainMenu::continueGame(CCObject *sender){

}
void LayerMainMenu::setting(CCObject *sender){

}
void LayerMainMenu::help(CCObject *sender){

}
void LayerMainMenu::exit(CCObject *sender){

}