#include "RUBehaviacTreeFactory.h"

NS_RU_BEGIN

static RUBehaviacTreeFactory *_instance = nullptr;
RUBehaviacTreeFactory* RUBehaviacTreeFactory::getInstance()
{
    if (_instance == nullptr)
    {
        _instance = new (std::nothrow) RUBehaviacTreeFactory;
    }
    return _instance;
}

void RUBehaviacTreeFactory::registerBehaviacTreeCreator(const std::string& treeName, std::function<RUBehaviacTree*(void)> behaviacTreeCreator)
{
    CCASSERT(_behaviacTreeCreators.find(treeName) == _behaviacTreeCreators.end(), "wtf");
    _behaviacTreeCreators.emplace(treeName,behaviacTreeCreator);
}

RUBehaviacTree* RUBehaviacTreeFactory::createBehaviacTree(const std::string& treeName)
{
    RUBehaviacTree* behaviacTree = nullptr;
    
    //如果注册器的key未注册,返回默认注册器
    if (treeName.empty() || _behaviacTreeCreators.find(treeName) == _behaviacTreeCreators.end()) {
        CCASSERT(false,"有问题");
    }else{
        auto behaviacTreeCreator = _behaviacTreeCreators.find(treeName)->second;
        behaviacTree = behaviacTreeCreator();
    }
    return behaviacTree;
}


NS_RU_END