RunSource_cppAndlua.zip

#include "Terrain2.h" #include <algorithm> int patterns[] = {1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,3,3,3}; int widths[] = {2,2,2,2,2,3,3,3,3,3,3,4,4,4,4,4,4}; int heights[] = {0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,2,2,2,3,3,3,3,3,3,4}; int types[] = {1,2,3,4,1,3,2,4,3,2,1,4,2,3,1,4,2,3,1,2,3,2,3,4,1,2,4,3,1,3,1,4,2,4,2,1,2,3}; vector<int> _blockPattern (patterns, patterns + sizeof(patterns) / sizeof(int)); vector<int> _blockWidths (widths, widths + sizeof(widths) / sizeof(int)); vector<int> _blockHeights (heights, heights + sizeof(heights) / sizeof(int)); vector<int> _blockTypes (types, types + sizeof(types) / sizeof(int)); Terrain2::~Terrain2 () { CC_SAFE_RELEASE(_blockPool); CC_SAFE_RELEASE(_blocks); } Terrain2::Terrain2() :_screenSize(CCDirector::getInstance()->getWinSize()) ,_startTerrain(false) ,_blockPoolIndex(0) ,_currentPatternCnt(1) ,_currentPatternIndex(0) ,_currentTypeIndex(0) ,_currentWidthIndex(0) ,_currentHeightIndex(0) ,_showGap(false) { } Terrain2 * Terrain2::create() { Terrain2 * terrain = new Terrain2(); //if (terrain && terrain->initWithFile("blank.png")) { if (terrain && terrain->initWithSpriteFrameName("blank.png")) { terrain->setAnchorPoint(Vect(0,0)); terrain->initTerrain(); terrain->autorelease(); return terrain; } CC_SAFE_DELETE(terrain); return NULL; } void Terrain2::initTerrain () { _increaseGapInterval = 5000; _increaseGapTimer = 0; _gapSize = 2; _blockPool = CCArray::createWithCapacity(20); _blockPool->retain(); //init object pools Block * block; for (int i = 0; i < 20; i++) { block = Block::create(); this->addChild(block); _blockPool->addObject(block); } _blocks = CCArray::createWithCapacity(20); _blocks->retain(); _minTerrainWidth = _screenSize.width * 1.5f; //随机排序 random_shuffle(_blockPattern.begin(), _blockPattern.end()); random_shuffle(_blockWidths.begin(), _blockWidths.end()); random_shuffle(_blockHeights.begin(), _blockHeights.end()); this->addBlocks(0); } void Terrain2::addBlocks(int currentWidth) { Block * block; while (currentWidth < _minTerrainWidth) { block = (Block *) _blockPool->getObjectAtIndex(_blockPoolIndex); _blockPoolIndex++; if (_blockPoolIndex == _blockPool->count()) { _blockPoolIndex = 0; } this->initBlock(block); currentWidth += block->getWidth(); _blocks->addObject(block); printf("blockArray.count=%d\n",(int)_blocks->count()); } this->distributeBlocks(); } void Terrain2::initBlock(Block * block) { int blockWidth; int blockHeight; int type = _blockTypes[_currentTypeIndex]; _currentTypeIndex++; if (_currentTypeIndex == _blockTypes.size()) { _currentTypeIndex = 0; } // _showGap=false; //check if min distance reached; if (_startTerrain) { if (_showGap) {//生成空隙，用于主角掉下去 int gap = rand() % _gapSize; //设置多少空隙 if (gap < 2) gap = 2; // gap=5; block->setupBlock (gap, 0, kBlockGap); _showGap = false; } else {//生成新的屋顶，有高度和宽度 //得到block的宽度 blockWidth = _blockWidths[_currentWidthIndex]; _currentWidthIndex++; if (_currentWidthIndex == _blockWidths.size()) { random_shuffle(_blockWidths.begin(), _blockWidths.end()); _currentWidthIndex = 0; } //得到block的高度 if (_blockHeights[_currentHeightIndex] != 0) { //change height of next block blockHeight = _blockHeights[_currentHeightIndex]; //if difference too high, decrease it if (blockHeight - _lastBlockHeight > 2 && _gapSize == 2) { blockHeight = 1; } } else { //等于0，高度和上一个block一样 blockHeight = _lastBlockHeight; } _currentHeightIndex++; if (_currentHeightIndex == _blockHeights.size()) { _currentHeightIndex = 0; random_shuffle(_blockHeights.begin(), _blockHeights.end()); } //设置宽度和高度 block->setupBlock (blockWidth, blockHeight, type); _lastBlockWidth = blockWidth; _lastBlockHeight = blockHeight; //select next block series pattern 确定什么时候出现沟渠 _currentPatternCnt++; if (_currentPatternCnt > _blockPattern[_currentPatternIndex]) { _showGap = true; _currentPatternIndex++; if (_currentPatternIndex == _blockPattern.size()) { random_shuffle(_blockPattern.begin(), _blockPattern.end()); _currentPatternIndex = 0; } _currentPatternCnt = 1; } } } else { //初始的那5个走这个，高度都为2，相当于热身 _lastBlockHeight = 2; _lastBlockWidth = rand() % 2 + 2; block->setupBlock (_lastBlockWidth, _lastBlockHeight, type); } } void Terrain2::distributeBlocks() { int count = (int)_blocks->count(); Block * block; Block * prev_block; int i; for (i = 0; i < count; i++) { block = (Block *) _blocks->getObjectAtIndex(i); if (i != 0) { prev_block = (Block *) _blocks->getObjectAtIndex(i - 1); block->setPositionX( prev_block->getPositionX() + prev_block->getWidth()); } else { block->setPositionX ( 0 ); } } } void Terrain2::move (float xMove) { if (xMove < 0) { return; } if (_startTerrain) { //开始生成间隙了 if (xMove > 0 && _gapSize < 5) //我的理解是越往后越难 { _increaseGapTimer += xMove; } if (_increaseGapTimer > _increaseGapInterval) { _increaseGapTimer = 0; _gapSize += 1; } } this->setPositionX(this->getPositionX() - xMove); Block * block; block = (Block *) _blocks->getObjectAtIndex(0); if (this->getPositionX() + block->getWidth() < 0) { //最开始的一个block退到头了，第二个block出现在屏幕最左侧了马上 _blocks->removeObjectAtIndex(0); //移除之后，为什么要重新添加呢，因为上面移除只是移除了blocks数组里面的block，但是这个block还是存在的，没有被释放，他还被添加到了 //Terrain中，所以如果你只是移除他，但是不重新添加，那么之后distributeBlocks中对block数组的排列就不会包括这个删除的block，也就是说 //这个block依然是原来的坐标，添加到Terrain中的，重新排列坐标对他没有影响，从而产生奇怪现象，你可以试试，把他屏蔽掉 _blocks->addObject(block); printf("以前的坐标是%f\n",this->getPositionX() ); this->setPositionX(this->getPositionX() + block->getWidth()); printf("现在的坐标是%f\n",this->getPositionX()); float width_cnt = this->getWidth() - block->getWidth() - ((Block *) _blocks->getObjectAtIndex(0))->getWidth(); this->initBlock(block);//重新初始化，从而生成屋顶新的高度和宽度 //因为我们设置的最小block集合宽度为_minTerrainWidth，所以需要添加这一步，从而达到这个最小宽度 //当达到了，�