Cocos2d-x贪吃蛇代码

#include "GameScene.h" #include "StartScene.h" Scene * GameScene::createScene() { auto scene = Scene::create(); auto layer = GameScene::create(); scene->addChild(layer); return scene; } bool GameScene::init() { if (!Layer::init()) { return false; } auto visibleSize = Director::getInstance()->getVisibleSize(); timeval tv; gettimeofday(&tv, NULL); unsigned long int seed = tv.tv_sec * 1000 + tv.tv_usec / 100; srand(seed); auto backLabel = Label::createWithTTF("Main Menu", "fonts/Marker Felt.ttf", 24); auto backItem = MenuItemLabel::create(backLabel, CC_CALLBACK_1(GameScene::menuCallBack, this)); backItem->setAnchorPoint(Point::ANCHOR_BOTTOM_RIGHT); backItem->setPosition(Vec2(visibleSize.width, 0)); auto menu = Menu::create(backItem, NULL); menu->setPosition(Vec2::ZERO); addChild(menu); _sHead = new SnakeNode(); _sHead->row = rand() % 10; _sHead->col = rand() % 15; _sHead->preNode = NULL; _sFood = new SnakeNode(); _sFood->row = rand() % 10; _sFood->col = rand() % 15; auto snakeNode = Sprite::create("snake_head.png"); snakeNode->setAnchorPoint(Point::ANCHOR_BOTTOM_LEFT); snakeNode->setPosition(Vec2(_sHead->col * 32, _sHead->row * 32)); _sHead->nodeSprite = snakeNode; addChild(snakeNode); auto foodNode = Sprite::create("snake_food.png"); foodNode->setAnchorPoint(Point::ANCHOR_BOTTOM_LEFT); foodNode->setPosition(Vec2(_sFood->col * 32, _sFood->row * 32)); _sFood->nodeSprite = foodNode; addChild(foodNode); /* auto listener = EventListenerTouchOneByOne::create(); listener->setSwallowTouches(true); listener->onTouchBegan = CC_CALLBACK_2(GameScene::onTouchBegan, this); Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener, this); */ this->schedule(SEL_SCHEDULE(&GameScene::logic), 0.2f); rocker = HRocker::createHRocker("rocker.png", "rockerBG.png", Vec2(70, 70)); rocker->startRocker(); addChild(rocker); _dir = -1; return true; } /* bool GameScene::onTouchBegan(Touch * touch, Event * event) { auto point = touch->getLocation(); int touchRow = (int)(point.y / 32); int touchCol = (int)(point.x / 32); if (abs(touchRow - _sHead->row) > abs(touchCol - _sHead->col)) { if (touchRow > _sHead->row) { if (_dir != DIR_DEF::DOWN || _dir == -1) { _dir = DIR_DEF::UP; _sHead->dir = DIR_DEF::UP; } } else { if (_dir != DIR_DEF::UP || _dir == -1) { _dir = DIR_DEF::DOWN; _sHead->dir = DIR_DEF::DOWN; } } } else { if (touchCol > _sHead->col) { if (_dir != DIR_DEF::LEFT || _dir == -1) { _dir = DIR_DEF::RIGHT; _sHead->dir = DIR_DEF::RIGHT; } } else { if (_dir != DIR_DEF::RIGHT || _dir == -1) { _dir = DIR_DEF::LEFT; _sHead->dir = DIR_DEF::LEFT; } } } return true; } */ void GameScene::logic(float dt) { if (rocker->_rockerDirection == rocker_up) { if (_dir != DIR_DEF::DOWN || _dir == -1) { _dir = DIR_DEF::UP; _sHead->dir = DIR_DEF::UP; } } else if (rocker->_rockerDirection == rocker_down) { if (_dir != DIR_DEF::UP || _dir == -1) { _dir = DIR_DEF::DOWN; _sHead->dir = DIR_DEF::DOWN; } } else if (rocker->_rockerDirection == rocker_left) { if (_dir != DIR_DEF::RIGHT || _dir == -1) { _dir = DIR_DEF::LEFT; _sHead->dir = DIR_DEF::LEFT; } } else if (rocker->_rockerDirection == rocker_right) { if (_dir != DIR_DEF::LEFT || _dir == -1) { _dir = DIR_DEF::RIGHT; _sHead->dir = DIR_DEF::RIGHT; } } for (int i = _allBody.size() - 1; i >= 0; --i) { auto sn = _allBody.at(i); sn->row = sn->preNode->row; sn->col = sn->preNode->col; sn->dir = sn->preNode->dir; } switch (_sHead->dir) { case DIR_DEF::UP: _sHead->row++; break; case DIR_DEF::DOWN: _sHead->row--; break; case DIR_DEF::LEFT: _sHead->col--; break; case DIR_DEF::RIGHT: _sHead->col++; break; default: break; } if (_sHead->row >= 10 || _sHead->row < 0 || _sHead->col >= 15 || _sHead->col < 0) { gameOver(); return; } for (int i = _allBody.size() - 1; i >= 0; --i) { auto sn = _allBody.at(i); if (_sHead->row == sn->row && _sHead->col == sn->col) { gameOver(); return; } } for (int i = _allBody.size() - 1; i >= 0; --i) { auto sn = _allBody.at(i); sn->nodeSprite->runAction(MoveTo::create(0.2f, Vec2(sn->col * 32, sn->row * 32))); } _sHead->nodeSprite->runAction(MoveTo::create(0.2f, Vec2(_sHead->col * 32, _sHead->row * 32))); if (_sHead->row == _sFood->row && _sHead->col == _sFood->col) { _sFood->row = rand() % 10; _sFood->col = rand() % 15; _sFood->nodeSprite->setPosition(Vec2(_sFood->col * 32, _sFood->row * 32)); auto snakeNode = new SnakeNode(); if (_allBody.empty()) { snakeNode->preNode = _sHead; } else { snakeNode->preNode = _allBody.back(); } switch (snakeNode->preNode->dir) { case DIR_DEF::UP: snakeNode->row = snakeNode->preNode->row - 1; snakeNode->col = snakeNode->preNode->col; break; case DIR_DEF::DOWN: snakeNode->row = snakeNode->preNode->row + 1; snakeNode->col = snakeNode->preNode->col; break; case DIR_DEF::LEFT: snakeNode->row = snakeNode->preNode->row; snakeNode->col = snakeNode->preNode->col + 1; break; case DIR_DEF::RIGHT: snakeNode->row = snakeNode->preNode->row; snakeNode->col = snakeNode->preNode->col - 1; break; default: break; } auto nodeSprite = Sprite::create("snake_head.png"); nodeSprite->setAnchorPoint(Point::ANCHOR_BOTTOM_LEFT); nodeSprite->setPosition(Vec2(snakeNode->col * 32, snakeNode->row * 32)); snakeNode->nodeSprite = nodeSprite; addChild(nodeSprite); _allBody.pushBack(snakeNode); } } void GameScene::menuCallBack(Ref * pSender) { Director::getInstance()->getScheduler()->unschedule(schedule_selector(GameScene::logic), this); Director::getInstance()->replaceScene(StartScene::createScene()); } void GameScene::gameOver() { this->unschedule(SEL_SCHEDULE(&GameScene::logic)); auto visibleSize = Director::getInstance()->getVisibleSize(); auto label = Label::createWithTTF("Game Over", "fonts/Marker Felt.ttf", 48); label->setAnchorPoint(Point::ANCHOR_MIDDLE); label->setPosition(Vec2(visibleSize.width / 2, visibleSize.height / 2)); addChild(label); this->scheduleOnce(SEL_SCHEDULE(&GameScene::menuCallBack), 2.0f); }