【cocos2d-x 3.7 飛機大戰】 決戰南海I (二) 我方飛機的實現
阿新 • • 發佈：2017-06-10
this pre ram object float engine 執行 osi new
.cpp文件
更新生命值的函數僅僅用在我方飛機生命值降低是調用。
能夠在項目中加入一個XML文件
通過對應的key來顯示顯示對應的中文。
在上一篇中。我們實現了遊戲的開始界面，接下來要實現遊戲的主界面。主界面包括地圖、我方飛機、敵機等
先來實現我方飛機
我方飛機具有哪些屬性呢？ 飛機要具有生命值、要有動畫效果(尾部噴氣),飛機不可以飛出邊界。所以要進行邊界檢測，當飛機生命值為0時。飛機會爆炸。然後被移除。
.h文件
//飛機動畫 Animate* planeFly(); //邊界檢測 void borderCheck(float dt); //飛機爆炸 void blowUp(); //移除飛機 void removePlane(); //獲取生命值 int getAlive(); //設定生命值 void loseAlive(); // 更新生命值 void updateAlive(int alive);
這個變量在create()函數中初始化，方便其它層調用我方飛機的相關數據
static MyPlane* instancePlane; //飛機實例
private: int m_alive; Label* aliveItem1; Label* aliveItem2;
.cpp文件
/*
************************************************************************
*
* MyPlane.cpp
* 杜星飛 2015年8月13日
* 描寫敘述: 包括飛機的屬性、功能等
*
************************************************************************
*/
#include "MyPlane.h"
#include "SimpleAudioEngine.h"
MyPlane::MyPlane() :m_alive(5)
{
}
MyPlane::~MyPlane()
{
}
MyPlane* MyPlane::instancePlane = NULL;
MyPlane* MyPlane::create()
{
MyPlane* m_plane = NULL;
do
{
m_plane = new MyPlane();
CC_BREAK_IF(!m_plane);
if (m_plane && m_plane->init())
{
m_plane->autorelease();
instancePlane = m_plane;
}
else
CC_SAFE_DELETE(m_plane);
} while (0);
return m_plane;
}
//飛機動畫
Animate* MyPlane::planeFly()
{
Vector<SpriteFrame *> vector;
for (int i = 0; i < 2; i++)
{
auto frameName = __String::createWithFormat("chinaFly%d.png", i + 1);
auto temSpriteFrame = SpriteFrameCache::getInstance()->getSpriteFrameByName(frameName->getCString());
vector.pushBack(temSpriteFrame);
}
//設置不斷播放飛機的動畫
auto animation = Animation::createWithSpriteFrames(vector, 0.2f, -1);
auto animate = Animate::create(animation);
return animate;
}
bool MyPlane::init()
{
if(!Layer::init())
return false;
Size winSize = Director::getInstance()->getWinSize();
//加入飛機
auto m_planeSprite = Sprite::createWithSpriteFrameName("chinaFly1.png");
m_planeSprite->setPosition(Point(winSize.width / 2, m_planeSprite->getContentSize().height / 2));
m_planeSprite->setTag(AIRPLANE);
this->addChild(m_planeSprite);
m_planeSprite->runAction(this->planeFly());
// 飛機觸摸
auto listener = EventListenerTouchOneByOne::create();
listener->setSwallowTouches(true); //吞噬觸摸事件
//對觸摸事件的監聽過程直接寫在這裏
listener->onTouchBegan = [](Touch* touch, Event *event)
{
auto target = static_cast<Sprite*>(event->getCurrentTarget());
Point locationInNode = target->convertToNodeSpace(touch->getLocation());
Size s = target->getContentSize();
Rect rect = Rect(0, 0, s.width, s.height);
if (rect.containsPoint(locationInNode))
return true;
else
return false;
};
listener->onTouchMoved = [](Touch* touch, Event *event)
{
auto target = static_cast<Sprite*>(event->getCurrentTarget());
target->setPosition(target->getPosition() + touch->getDelta());
};
listener->onTouchEnded = [](Touch* touch, Event* event)
{
};
//將觸摸監聽加入到eventDispacher中去
_eventDispatcher->addEventListenerWithSceneGraphPriority(listener, m_planeSprite);
//初始化生命值
//設置標簽 並 獲取中文文本
auto dictionary = Dictionary::createWithContentsOfFile("fonts/AboutMe.xml");
aliveItem1 = Label::createWithTTF(
(((__String*)(dictionary->objectForKey("alive"))))->getCString(),
"fonts/DFPShaoNvW5-GB.ttf",
25);
aliveItem1->setPosition(Point(winSize.width/8, winSize.height-aliveItem1->getContentSize().height));
aliveItem1->setColor(Color3B(255, 0, 0));
this->addChild(aliveItem1);
aliveItem2 = Label::createWithTTF(
"5",
"fonts/DFPShaoNvW5-GB.ttf",
25);
aliveItem2->setPosition(Point(aliveItem1->getPositionX()*2, winSize.height - aliveItem1->getContentSize().height));
aliveItem2->setColor(Color3B(255, 0, 0));
this->addChild(aliveItem2);
// 開啟邊界檢測
this->schedule(schedule_selector(MyPlane::borderCheck));
return true;
}
//邊界檢測
void MyPlane::borderCheck(float dt)
{
//進行邊界推斷,不可超出屏幕
Point location = this->getChildByTag(AIRPLANE)->getPosition();
Size winSize = Director::getInstance()->getWinSize();
// 返回的就是這個矩形的大小
Size planeSize = this->getChildByTag(AIRPLANE)->getContentSize();
if (location.x<planeSize.width / 2)
location.x = planeSize.width / 2;
if (location.x>winSize.width - planeSize.width / 2)
location.x = winSize.width - planeSize.width / 2;
if (location.y<planeSize.height / 2)
location.y = planeSize.height / 2;
if (location.y>winSize.height - planeSize.height / 2)
location.y = winSize.height - planeSize.height / 2;
this->getChildByTag(AIRPLANE)->setPosition(location);
}
//飛機爆炸
void MyPlane::blowUp()
{
this->unscheduleAllSelectors(); // 停止飛機的全部行動
//載入飛機爆炸動畫 音效
if (CocosDenshion::SimpleAudioEngine::getInstance()->isBackgroundMusicPlaying())
{
CocosDenshion::SimpleAudioEngine::getInstance()->playEffect("sound/chinaDown.mp3");
}
Vector<SpriteFrame*> planeBlowUp;
for (int i = 0; i < 4; i++)
{
auto planeName = __String::createWithFormat("china1_down%d.png", i + 1);
auto tempBlowUp = SpriteFrameCache::getInstance()->getSpriteFrameByName(
planeName->getCString());
planeBlowUp.pushBack(tempBlowUp);
}
Animation* animation = Animation::createWithSpriteFrames(planeBlowUp, 0.2f);
Animate* animate = Animate::create(animation);
CallFunc* m_removePlane = CallFunc::create(this, callfunc_selector(MyPlane::removePlane));
Sequence* sequence = Sequence::create(animate, m_removePlane, NULL);
// 停止一切的飛機動作
this->getChildByTag(AIRPLANE)->stopAllActions();
this->getChildByTag(AIRPLANE)->runAction(sequence);
}
//移除飛機
void MyPlane::removePlane()
{
// 移除飛機精靈 true子節點上的全部執行行為和回調將清理
this->removeChildByTag(AIRPLANE, true);
}
//獲取生命值
int MyPlane::getAlive()
{
return m_alive;
}
//設定生命值
void MyPlane::loseAlive()
{
--m_alive;
updateAlive(m_alive);
}
// 更新生命值
void MyPlane::updateAlive(int alive)
{
if (alive >= 0)
{
CCString* strAlive = CCString::createWithFormat("%d", alive);
aliveItem2->setString(strAlive->getCString());
aliveItem2->setColor(Color3B(rand_0_1() * 255, rand_0_1() * 255, rand_0_1() * 255));
}
}更新生命值的函數僅僅用在我方飛機生命值降低是調用。
還有就是對於中文字符的處理
//設置標簽 並 獲取中文文本
auto dictionary = Dictionary::createWithContentsOfFile("fonts/AboutMe.xml");能夠在項目中加入一個XML文件
<?xml version="1.0" encoding="UTF-8"?> <dict> <key>play</key> <string>開始遊戲</string> <key>score</key> <string>得分:</string> <key>alive</key> <string>生命:</string>
通過對應的key來顯示顯示對應的中文。
還有就是，有些字體不支持中文的顯示，比方 系統自帶的 arial.ttf就不行，而DFPShaoNvW5-GB.ttf能夠。
【cocos2d-x 3.7 飛機大戰】 決戰南海I (二) 我方飛機的實現