在Cocos2d中启用多点触控,可以通过以下步骤实现:
AppDelegate.cpp
文件中设置kCCHiRes
标志,以启用多点触控。#include "AppDelegate.h"
#include "HelloWorldScene.h"
#include "cocos2d.h"
USING_NS_CC;
AppDelegate::AppDelegate() {
}
AppDelegate::~AppDelegate()
{
}
bool AppDelegate::applicationDidFinishLaunching() {
// initialize director
auto director = Director::getInstance();
auto glview = director->getOpenGLView();
if(!glview) {
glview = GLViewImpl::createWithRect("Cocos2d", Rect(0, 0, 800, 450));
director->setOpenGLView(glview);
}
// Set the design resolution
glview->setDesignResolutionSize(800, 450, ResolutionPolicy::NO_BORDER);
// Turn on multi-touch
glview->setMultipleTouchEnabled(true);
// ...
}
EventListenerTouchAllAtOnce
对象,并将其添加到事件分发器中。这将允许您的场景接收到所有触摸事件。#include "HelloWorldScene.h"
#include "cocos2d.h"
USING_NS_CC;
Scene* HelloWorld::createScene()
{
// 'scene' is an autorelease object
auto scene = Scene::create();
// 'layer' is an autorelease object
auto layer = HelloWorld::create();
// add layer as a child to scene
scene->addChild(layer);
// ...
// Create a touch event listener
auto touchListener = EventListenerTouchAllAtOnce::create();
touchListener->onTouchesBegan = CC_CALLBACK_2(HelloWorld::onTouchesBegan, this);
touchListener->onTouchesMoved = CC_CALLBACK_2(HelloWorld::onTouchesMoved, this);
touchListener->onTouchesEnded = CC_CALLBACK_2(HelloWorld::onTouchesEnded, this);
// Add the touch event listener to the event dispatcher
_eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this);
return scene;
}
onTouchesBegan
、onTouchesMoved
和onTouchesEnded
方法,以处理触摸事件。bool HelloWorld::onTouchesBegan(const std::vector<Touch*>& touches, Event* event)
{
for (auto& touch : touches)
{
// Handle the touch began event
}
return true;
}
void HelloWorld::onTouchesMoved(const std::vector<Touch*>& touches, Event* event)
{
for (auto& touch : touches)
{
// Handle the touch moved event
}
}
void HelloWorld::onTouchesEnded(const std::vector<Touch*>& touches, Event* event)
{
for (auto& touch : touches)
{
// Handle the touch ended event
}
}
现在,您已经在Cocos2d中启用了多点触控支持。您可以根据需要处理触摸事件,并在您的游戏或应用程序中使用多点触控功能。
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