cocos2d-x 3.0游戏实例学习笔记《跑酷》第五步--按钮控制主角Jump&Crouch

来源：互联网发布：unity3d材质球介绍编辑：程序博客网时间：2024/04/29 14:17

说明：这里是借鉴：晓风残月前辈的博客，他是将泰然网的跑酷教程，用cocos2d-x 2.X 版本重写的，目前我正在学习cocos2d-X3.0 于是就用cocos2d-X 3.0重写，并做相关笔记

这一步当中，我们给PlayScene中添加两个按钮，让主角Jump and Crouch，按钮功能如下：

Jump按钮，按下主角跳起来

Crouch按钮，按下主角下蹲，一直按着一直蹲，松开之后主角才站起来

这里用按钮包含头文件"cocos-ext.h"会遇到一点点问题，后面给出详细解决方法：

首先PlayScene.h中要包含头文件：

<span style="font-size:14px;">#include "cocos-ext.h"USING_NS_CC_EXT;</span>

然后添加函数：

//Jumpvoid createJumpButton();void jumpEvent(Ref* pSender,Control::EventType event);//Crouchvoid createCrouchButton();void crouchDown(Ref* pSender,Control::EventType event);void crouchUp(Ref* pSender,Control::EventType event);

这里先解释一下，Crouch 有两个事件，我们在按钮中，要添加两个按钮事件，一个是按下，那么人物蹲下，然后按钮松开，人物又起来，两个事件，两个回调函数

然后实现：

void PlayScene::createJumpButton(){auto visibleSize = Director::getInstance()->getVisibleSize();auto jumpLabel = Label::create("Jump","Arail",30);auto norBtn = Scale9Sprite::create("norBtn.png");auto lightBtn = Scale9Sprite::create("lightBtn.png");auto jumpBtn = ControlButton::create(jumpLabel,norBtn);jumpBtn->setPosition(visibleSize.width-80,130);jumpBtn->setBackgroundSpriteForState(lightBtn,Control::State::HIGH_LIGHTED);jumpBtn->addTargetWithActionForControlEvents(this,cccontrol_selector(PlayScene::jumpEvent),Control::EventType::TOUCH_DOWN);this->addChild(jumpBtn);}void PlayScene::jumpEvent(Ref* pSender,Control::EventType event){//SimpleAudioEngine::sharedEngine()->playEffect("jump.mp3");m_runner->Jump();}void PlayScene::createCrouchButton(){auto visibleSize = Director::getInstance()->getVisibleSize();auto crouchLabel = Label::create("Crouch","Arail",30);auto norBtn = Scale9Sprite::create("norBtn.png");auto lightBtn = Scale9Sprite::create("lightBtn.png");auto crouchBtn = ControlButton::create(crouchLabel,norBtn);crouchBtn->setPosition(visibleSize.width-100,80);crouchBtn->setBackgroundSpriteForState(lightBtn,Control::State::HIGH_LIGHTED);//crouchBtn->addTargetWithActionForControlEvents(this,cccontrol_selector(PlayScene::crouchDown),Control::EventType::TOUCH_DOWN);//crouchBtn->addTargetWithActionForControlEvents(this,cccontrol_selector(PlayScene::crouchUp),Control::EventType::TOUCH_UP_INSIDE);this->addChild(crouchBtn);}void PlayScene::crouchDown(Ref* pSender,Control::EventType event){//添加判断if(m_runner->getState() == running){m_runner->Crouch();m_runner->setPosition(runner_posX,ground_hight+m_runner->getCrouchSize().height/2);}//SimpleAudioEngine::sharedEngine()->playEffect("crouch.mp3");}void PlayScene::crouchUp(Ref* pSender,Control::EventType event){//否则，在跳起来的时候，点击crouch 松开之后，状态就会变成runningif(m_runner->getState() == crouch){m_runner->stopAllActions();m_runner->Run();    m_runner->setPosition(runner_posX,ground_hight+m_runner->getRunJumpSize().height/2);}}

然后在Runner.cpp中的init 函数中，还要记得

this->scheduleUpdate();,因为我们需要在update中判断起跳到最高点下落

然后在 PlayScene 的init函数也要添加两个create按钮函数

那么生成，然后这里就会遇到问题：

那么这里我们需要在项目上右键到属性，【配置属性】->【C/C++】->【常规】->【附加包含目录】如图：