cocos2d-x Box2d点击随机生成刚体

// // GB2ShapeCache-x.cpp // // Loads physics sprites created with http://www.PhysicsEditor.de // To be used with cocos2d-x // // Generic Shape Cache for box2d // // Created by Thomas Broquist // // http://www.PhysicsEditor.de // http://texturepacker.com // http://www.code-and-web.de // // Copyright (c) 2012 Chris Hannon / channon.us // // All rights reserved. // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. // #include "GB2ShapeCache.h" #include "Box2D/Box2D.h" #include "..\cocoa\CCNS.h" #include "HelloWorldScene.h" using namespace cocos2d; //USING_NS_GB; /** * Internal class to hold the fixtures */ class FixtureDef { public: FixtureDef() : next(NULL) {} ~FixtureDef() { delete next; delete fixture.shape; } FixtureDef *next; b2FixtureDef fixture; int callbackData; }; class BodyDef { public: BodyDef() : fixtures(NULL) {} ~BodyDef() { if (fixtures) delete fixtures; } FixtureDef *fixtures; CCPoint anchorPoint; }; static GB2ShapeCache *_sharedGB2ShapeCache = NULL; GB2ShapeCache* GB2ShapeCache::sharedGB2ShapeCache(void) { if (!_sharedGB2ShapeCache) { _sharedGB2ShapeCache = new GB2ShapeCache(); _sharedGB2ShapeCache->init(); } return _sharedGB2ShapeCache; } bool GB2ShapeCache::init() { return true; } void GB2ShapeCache::reset() { std::map<std::string, BodyDef *>::iterator iter; for (iter = shapeObjects.begin() ; iter != shapeObjects.end() ; ++iter) { delete iter->second; } shapeObjects.clear(); } void GB2ShapeCache::addFixturesToBody(b2Body *body, const std::string &shape) { std::map<std::string, BodyDef *>::iterator pos = shapeObjects.find(shape); assert(pos != shapeObjects.end()); BodyDef *so = (*pos).second; FixtureDef *fix = so->fixtures; while (fix) { body->CreateFixture(&fix->fixture); fix = fix->next; } } //设置锚点坐标 cocos2d::CCPoint GB2ShapeCache::anchorPointForShape(const std::string &shape) { std::map<std::string, BodyDef *>::iterator pos = shapeObjects.find(shape); assert(pos != shapeObjects.end()); BodyDef *bd = (*pos).second; return bd->anchorPoint; } //加入形状 void GB2ShapeCache::addShapesWithFile(const std::string &plist) { CCDictionary *dict = CCDictionary::createWithContentsOfFile(plist.c_str()); CCAssert(dict != NULL, "Shape-file not found"); // not triggered - cocos2dx delivers empty dict if non was found CCAssert(dict->count() != 0, "plist file empty or not existing"); CCDictionary *metadataDict = (CCDictionary *)dict->objectForKey("metadata"); int format = static_cast<CCString *>(metadataDict->objectForKey("format"))->intValue(); ptmRatio = static_cast<CCString *>(metadataDict->objectForKey("ptm_ratio"))->floatValue(); CCAssert(format == 1, "Format not supported"); CCDictionary *bodyDict = (CCDictionary *)dict->objectForKey("bodies"); b2Vec2 vertices[b2_maxPolygonVertices]; CCDictElement* pElement = NULL; CCDICT_FOREACH(bodyDict, pElement) { BodyDef *bodyDef = new BodyDef(); CCString *bodyName = ccs(pElement->getStrKey()); CCDictionary *bodyData = (CCDictionary *)pElement->getObject(); bodyDef->anchorPoint = CCPointFromString(static_cast<CCString *>(bodyData->objectForKey("anchorpoint"))->getCString()); CCArray *fixtureList = (CCArray *)bodyData->objectForKey("fixtures"); FixtureDef **nextFixtureDef = &(bodyDef->fixtures); CCObject *fixture = NULL; CCARRAY_FOREACH(fixtureList, fixture) { b2FixtureDef basicData; CCDictionary *fixtureData = (CCDictionary *)fixture; int callbackData = 0; basicData.filter.categoryBits = static_cast<CCString *>(fixtureData->objectForKey("filter_categoryBits"))->intValue(); basicData.filter.maskBits = static_cast<CCString *>(fixtureData->objectForKey("filter_maskBits"))->intValue(); basicData.filter.groupIndex = static_cast<CCString *>(fixtureData->objectForKey("filter_groupIndex"))->intValue(); basicData.friction = static_cast<CCString *>(fixtureData->objectForKey("friction"))->floatValue(); basicData.density = static_cast<CCString *>(fixtureData->objectForKey("density"))->floatValue(); basicData.restitution = static_cast<CCString *>(fixtureData->objectForKey("restitution"))->floatValue(); basicData.isSensor = (bool)static_cast<CCString *>(fixtureData->objectForKey("isSensor"))->intValue(); if(fixtureData->objectForKey("id")){ basicData.userData = static_cast<CCString *>(fixtureData->objectForKey("id")); callbackData = static_cast<CCString *>(fixtureData->objectForKey("id"))->intValue(); } std::string fixtureType = static_cast<CCString *>(fixtureData->objectForKey("fixture_type"))->getCString(); //CCString *fixtureType = static_cast<CCString *>(fixtureData->objectForKey("fixture_type"))->getCString(); if (fixtureType == "POLYGON") { //CCDictionary *polygons = (CCDictionary *)fixtureData->objectForKey("polygons"); CCArray *polygons = (CCArray *)fixtureData->objectForKey("polygons"); //CCDictElement *polygon = NULL; CCObject *polygon = NULL; //CCDICT_FOREACH(polygons, polygon) CCARRAY_FOREACH(polygons, polygon) { FixtureDef *fix = new FixtureDef(); fix->fixture = basicData; // copy basic data fix->callbackData = callbackData; b2PolygonShape *polyshape = new b2PolygonShape(); int vindex = 0; //CCDictionary *polygonData = (CCDictionary *)polygon->getObject(); CCArray *polygonData = (CCArray *)polygon; assert(polygonData->count() <= b2_maxPolygonVertices); //CCDictElement *offset = NULL; CCObject *offset = NULL; //CCDICT_FOREACH(polygonData, offset) CCARRAY_FOREACH(polygonData, offset) { CCString *pStr = (CCString *)offset; CCPoint p = CCPointFromString(pStr->getCString()); vertices[vindex].x = (p.x / ptmRatio) ; vertices[vindex].y = (p.y / ptmRatio) ; vindex++; } polyshape->Set(vertices, vindex); fix->fixture.shape = polyshape; *nextFixtureDef = fix; nextFixtureDef = &(fix->next); } } else if (fixtureType == "CIRCLE") { FixtureDef *fix = new FixtureDef(); fix->fixture = basicData; // copy basic data fix->callbackData = callbackData; CCDictionary *circleData = (CCDictionary *)fixtureData->objectForKey("circle"); b2CircleShape *circleShape = new b2CircleShape(); circleShape->m_radius = static_cast<CCString *>(circleData->objectForKey("radius"))->floatValue() / ptmRatio; CCPoint p = CCPointFromString(static_cas