cocos2dx 3.8版关于#include "GB2ShapeCache-x.h"

关于coco2d-x 3.8版的PhysicsEditor.exe1.09版的GB2ShapeCache-x.h.cpp中有些方法更新了和容器的使用方法，还有就是头文件include "CCNS.h"  以前在cocoa包中现在在base包中。

//GB2ShapeCache-x.h.cpp

#include "GB2ShapeCache-x.h"  
#include "Box2D/Box2D.h"  
#include "base/CCNS.h"

using namespace cocos2d;

/**
* 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;
    }
}

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;
}

void GB2ShapeCache::addShapesWithFile(const std::string &plist) {

CCDictionary *dict = CCDictionary::createWithContentsOfFileThreadSafe(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];

DictElement* pElement = NULL;
    CCDICT_FOREACH(bodyDict, pElement)
    {
        BodyDef *bodyDef = new BodyDef();

CCString *bodyName = ccs(pElement->getStrKey());

CCDictionary *bodyData = (CCDictionary *)pElement->getObject();
        bodyDef->anchorPoint = PointFromString(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 = PointFromString(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 = PointFromString(static_cast<CCString *>(circleData->objectForKey("position"))->getCString());
                circleShape->m_p = b2Vec2(p.x / ptmRatio, p.y / ptmRatio);
                fix->fixture.shape = circleShape;

// create a list  
                *nextFixtureDef = fix;
                nextFixtureDef = &(fix->next);

}
            else {
                CCAssert(0, "Unknown fixtureType");
            }

// add the body element to the hash  
            shapeObjects[bodyName->getCString()] = bodyDef;
        }
    }
}

//GB2ShapeCache-x.h

#ifndef __CCSHAPECACHE_H__  
#define __CCSHAPECACHE_H__  
#include "cocos2d.h"  
USING_NS_CC;
class BodyDef;
class b2Body;
namespace cocos2d {
    class GB2ShapeCache : public CCObject{
    public:
        static GB2ShapeCache* sharedGB2ShapeCache(void);
    public:
        bool init();
        void addShapesWithFile(const std::string &plist);
        void addFixturesToBody(b2Body *body, const std::string &shape);
        cocos2d::CCPoint anchorPointForShape(const std::string &shape);
        void reset();
        float getPtmRatio() { return ptmRatio; }
        ~GB2ShapeCache() {}
    private:
        std::map<std::string, BodyDef *> shapeObjects;
        GB2ShapeCache(void) {}
        float ptmRatio;
    };
}
#endif /* defined(__CCSHAPECACHE_H__) */