Unity3D

"실용주의 디자인 패턴"

#include "HelloWorldScene.h"
#include "SimpleAudioEngine.h"

using namespace cocos2d;
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;
    }

    /////////////////////////////
    // 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
    CCMenuItemImage *pCloseItem = CCMenuItemImage::create(
                                        "CloseNormal.png",
                                        "CloseSelected.png",
                                        this,
                                        menu_selector(HelloWorld::menuCloseCallback) );
    pCloseItem->setPosition( ccp(CCDirector::sharedDirector()->getWinSize().width - 20, 20) );

    // create menu, it's an autorelease object
    CCMenu* pMenu = CCMenu::create(pCloseItem, NULL);
    pMenu->setPosition( CCPointZero );
    this->addChild(pMenu, 1);

    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
   
    sprite = CCSprite::create("CloseNormal.png");
    this->addChild(sprite);
    sprite->setPosition(ccp(20, winSize.height/2));
   

//힘

    int Force = 5;
   

//각도 조절
    float x = Force * cos(25);
    float y = Force * sin(25);
//벡터값   
    vector = CCPoint(x, y);
    time = 0.0f;
    initPos = sprite->getPosition();
    CCLog("%f, %f" , x,y);
   
    this->schedule(schedule_selector(HelloWorld::gameLogic));
    return true;
}

void HelloWorld::gameLogic(float dt)
{
   
    CCSize winSize = CCDirector::sharedDirector()->getWinSize();
    //CCLog("gameLogic!");
    time += dt;

//시간에 따른 포물선 운동 공식
    float x = vector.x * time;
    float y = vector.y * time - (9.8f/2.0f * time * time);
   
    CCPoint pos = sprite->getPosition();
    sprite->setPosition(ccp(pos.x+x,pos.y+y));
   
    if(sprite->getPositionY() < 0)
    {
        time = 0;
        sprite->setPosition(ccp(20, winSize.height/2));
    }
   
}
void HelloWorld::menuCloseCallback(CCObject* pSender)
{
    CCDirector::sharedDirector()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

x = S.x + V.x * t;
y = S.y + (V.y * t) - ((1/2) * g * t * t);
z = S.z + V.z * t;

t는 시간
S는 시작위치
g는 중력 가속도이지만 반드시 9.8일 필요는 없고 실제 게임에서 자연스럽게 보이는 값을 지정.

특정시간은 t의 값에 그 시간을 넣고 x,y,z를 최종위치값으로 넣어서 V값을 역산해 결정한 다음
매 프레임마다 t값을 갱신해 가면서 x, y, z를 구하시면 됨