void GameScene::initFloorsAndCoins()
{
int num = 0;//用来作为数组下标
int count = 0;//用来控制山体的X坐标
isFrontBlank = false;
//创建20个山体和金币，放入数组中
for (int i=0; i<floorCount; i++) {
Floor *floor = Floor::createFloor();
floor->setScale(scaleFix);
this->addChild(floor);
floorArray.pushBack(floor);
Coin *coin = Coin::createCoin();
this->addChild(coin);
coinArray.pushBack(coin);
}
//循环遍历修改山体和金币的位置
while (num<floorCount) {
count++;
if (num<floorCount/2) {
//前10个山体和金币单独处理,count用来控制位置,根据player的初始化位置设置地面的位置
floorArray.at(num)->setPosition(Point(count*35,winSize.height/2 -100));
Floor *floortemp = floorArray.at(num);
//金币放在山体上方一定距离
coinArray.at(num)->setPosition(Point(count*35,floortemp->getPositionY()+80));
num++;
}else{
//后10个山体和金币的处理
randomNum = this->getRandomNumber(0, 2); //0~2的随机数
if (randomNum == 0) {
isFrontBlank = true;
continue;
}
if (isFrontBlank) {
//山体高度设置为100到320-220即100之间的随机数
floorArray.at(num)->setPosition(Point(count*35, this->getRandomNumber(winSize.height/2 -100, 180)));
//金币高度设置为山体以上30到100的高度
float y = floorArray.at(num)->getPositionY() + this->getRandomNumber(50, 150);
coinArray.at(num)->setPosition(Point(count*35, y));
isFrontBlank = false;
}else{
//设置山体的高度为前一个山体的高度
floorArray.at(num)->setPosition(Point(count*35, floorArray.at(num -1)->getPositionY()));
//金币的高度为山体以上30到100的高度
float y = floorArray.at(num)->getPositionY() + this->getRandomNumber(50, 150);
coinArray.at(num)->setPosition(Point(count*35, y));
}
num++;
}
}
}
void GameScene::updateFloorsAndCoins()
{
//改变山体的位置
for (int i =0; i<floorArray.size(); i++) {
Floor *floor = floorArray.at(i);
//forceX=300,speedFix = 0.01
floor->setPosition(Point(floor->getPositionX()-forceX * speedFix, floor->getPositionY()));
}
//改变金币的位置
for (int i = 0; i<coinArray.size(); i++) {
Coin *coin = coinArray.at(i);
coin->setPosition(Point(coin->getPositionX()-forceX * speedFix, coin->getPositionY()));
}
//当第一个山体移出屏幕
if (floorArray.at(0)->getPositionX() <-50) {
int num = floorArray.size()-1;//数组中最后一个元素下标
float posx = floorArray.at(num)->getPositionX();//获取最后一个山体的X坐标
//将第一个山体再加入数组中，这样它就成为最后一个元素
floorArray.pushBack(floorArray.at(0));
//删除数组中第一个元素，这样就完成了第一个山体移动到数组中最后的位置
floorArray.eraseObject(floorArray.at(0));
coinArray.pushBack(coinArray.at(0));
coinArray.eraseObject(coinArray.at(0));
//获取0~2的随机数
randomNum = this->getRandomNumber(0, 2);
if (randomNum == 0) {
isFrontBlank = true;
randomNum = this->getRandomNumber(1, 4);
}
Coin *coin = coinArray.at(num);
//数组中最后一个元素，即原来的第一个元素移动到最后位置，再获取最后一个
coin->setVisible(true);
if (isFrontBlank) {
//posx为数组中倒数第二个元素的X坐标，高度为随机数100~150之间
//设置新的最后一个元素的位置
floorArray.at(num)->setPosition(Point(posx + randomNum*35 + 35, this->getRandomNumber(winSize.height/2 -100,170)));
coinArray.at(num)->setPosition(Point(posx + randomNum*35 + 35, floorArray.at(num)->getPositionY() + this->getRandomNumber(50, 150)));
isFrontBlank = false;
}else{
//X轴坐标后移，高度同前一个山体
floorArray.at(num)->setPosition(Point(posx + 35 , floorArray.at(num - 1)->getPositionY()));
coinArray.at(num)->setPosition(Point(posx + 35, floorArray.at(num)->getPositionY() + this->getRandomNumber(50, 150)));
}
randomNum = this ->getRandomNumber(0, 2);
if (randomNum == 0) {
coin->setVisible(false);
}
}
}