//左滑动
bool GameScene:: doLeft ()
{
//判断有没有发生移动
bool isMove = false ;
for ( int y = 0 ; y < 4; y++)
{
for ( int x = 0 ; x < 4; x++)
{
for ( int x1 = x +1 ; x1 < 4; x1++)
{
if ( cardArr [x1 ][ y]-> getNumber () > 0 )
{
if ( cardArr [x ][ y]-> getNumber () <= 0 )
{
cardArr [x ][ y]-> setNumber (cardArr [ x1][ y ]->getNumber ());
cardArr [x1 ][ y]-> setNumber (0 );
x --;
isMove = true;
}
else if ( cardArr[ x ][y ]-> getNumber() == cardArr [ x1][ y ]->getNumber ())
{
cardArr [ x][ y ]->setNumber ( cardArr[ x ][y ]-> getNumber() * 2 );
cardArr [x1 ][ y]-> setNumber (0 );
isMove = true;
}
break ;
}
}
}
}
return isMove ;
}
//右滑动
bool GameScene::doRight()
{
//判断有没有发生移动
bool isMove = false;
for (int y = 0; y < 4; y++)
{
for (int x = 3; x >= 0; x--)
{
for (int x1 = x-1; x1>=0; x1--)
{
if (cardArr[x1][y]->getNumber() > 0)
{
if (cardArr[x][y]->getNumber() <= 0)
{
cardArr[x][y]->setNumber(cardArr[x1][y]->getNumber());
cardArr[x1][y]->setNumber(0);
x++;
isMove = true;
}
else if(cardArr[x][y]->getNumber() == cardArr[x1][y]->getNumber())
{
cardArr[x][y]->setNumber(cardArr[x][y]->getNumber() * 2);
cardArr[x1][y]->setNumber(0);
isMove = true;
}
break;
}
}
}
}
return isMove;
}//上滑动
bool GameScene::doUp()
{
//判断有没有发生移动
bool isMove = false;
for (int x = 0; x < 4; x++)
{
for (int y = 3; y >= 0; y--)
{
for (int y1 = y-1; y1>=0; y1--)
{
if (cardArr[x][y1]->getNumber() > 0)
{
if (cardArr[x][y]->getNumber() <= 0)
{
cardArr[x][y]->setNumber(cardArr[x][y1]->getNumber());
cardArr[x][y1]->setNumber(0);
y++;
isMove = true;
}
else if(cardArr[x][y]->getNumber() == cardArr[x][y1]->getNumber())
{
cardArr[x][y]->setNumber(cardArr[x][y]->getNumber() * 2);
cardArr[x][y1]->setNumber(0);
isMove = true;
}
break;
}
}
}
}
return isMove;
}
//下滑动
bool GameScene::doDown()
{
//判断有没有发生移动
bool isMove = false;
for (int x = 0; x < 4; x++)
{
for (int y = 0; y <4; y++)
{
for (int y1 = y+1; y1<4; y1++)
{
if (cardArr[x][y1]->getNumber() > 0)
{
if (cardArr[x][y]->getNumber() <= 0)
{
cardArr[x][y]->setNumber(cardArr[x][y1]->getNumber());
cardArr[x][y1]->setNumber(0);
y--;
isMove = true;
}
else if(cardArr[x][y]->getNumber() == cardArr[x][y1]->getNumber())
{
cardArr[x][y]->setNumber(cardArr[x][y]->getNumber() * 2);
cardArr[x][y1]->setNumber(0);
isMove = true;
}
break;
}
}
}
}
return isMove;
}
//创建生成随机卡片
void GameScene:: createCardNumber ()
{
int i = CCRANDOM_0_1 () * 4 ; //生成0~3随机数
int j = CCRANDOM_0_1 () * 4 ;
//判断是否已经存在
if ( cardArr [i ][ j]-> getNumber () > 0 )
{
createCardNumber ();
}
else
{
//2和4的生成率为9:1
cardArr [i ][ j]-> setNumber (CCRANDOM_0_1 ()* 10 < 1 ? 4 : 2);
}
}
【来写个2048吧】—— 移动算法与随机数字生成,布布扣,bubuko.com
原文地址：http://blog.csdn.net/wxk_bigworld/article/details/25054197
