[英]exc_bad_access on createfixture
I got a class called block. 我上了一堂课,叫做街区。 In this class I load a sprite, make a b2bodydef and a fixturedef.
在此类中,我加载一个精灵,创建一个b2bodydef和一个fixturedef。 In another class I make 2 blocks, add them to a vector and then loop the vector to create fixtures:
在另一个类中,我制作2个块,将它们添加到向量中,然后将向量循环以创建固定装置:
Block *b = new Block(5, 20);
this->addChild(b->sprite);
blocks.push_back(b);
Block *b1 = new Block(15, 35);
this->addChild(b1->sprite);
blocks.push_back(b1);
b2Body *blockbody;
for(int i = 0; i<blocks.size();i++)
{
b2BodyDef def = blocks[i]->blockbodydef;
blockbody = world->CreateBody(&def);
if(blockbody == NULL)
cocos2d::CCLog("blockbody is null");
blockbody->CreateFixture(&blocks[i]->blockshapedef);
}
I get the error "exc_bad_access" on the last line. 我在最后一行收到错误“ exc_bad_access”。
This is my block.h: 这是我的block.h:
class Block
{
public:
cocos2d::CCSprite *sprite;
Block(float x, float y);
b2BodyDef blockbodydef;
b2FixtureDef blockshapedef;
};
and .cpp: 和.cpp:
Block::Block(float x, float y)
{
sprite = cocos2d::CCSprite::create("Block.png");
sprite->setPosition(ccp(x,y));
blockbodydef.type = b2_kinematicBody;
blockbodydef.position.Set(x/PTM_RATIO,y/PTM_RATIO);
blockbodydef.userData = sprite;
b2PolygonShape blockPoly;
blockPoly.SetAsBox(37.5/PTM_RATIO , 37.5 / PTM_RATIO);
blockshapedef.shape = &blockPoly;
blockshapedef.density = 2.0f;
blockshapedef.friction = 0.2f;
blockshapedef.restitution = 0.8f;
}
blockbody isn't null, neither is blockshapedef. blockbody不为null,blockshapeef也为null。 Any tips?
有小费吗?
Solved the problem. 解决了问题。 Removing
b2PolygonShape blockPoly;
删除
b2PolygonShape blockPoly;
from the .cpp and adding it to the .h file did the trick. 从.cpp中并将其添加到.h文件中就可以了。
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