#include "pch.h"

#include "BehaviorEvent.h"

#include "BehaviorTreeEvent.h"

#include <algorithm>

#include <random>

#include <functional>

#include<assert.h>

extern std::_Binder<std::_Unforced, std::uniform_int_distribution<>&, std::default_random_engine&> dice;

using namespace BTEvent;

EStatus Behavior::Tick()

{

if (Status != EStatus::Running)

{

OnInitialize();

}

Status = Update();

if (Status != EStatus::Running)

{

OnTerminate(Status);

}

return Status;

}

void Composite::RemoveChild(Behavior* InChild)

{

auto it = std::find(Children.begin(), Children.end(), InChild);

if (it != Children.end())

{

Children.erase(it);

}

}

void Sequence::OnInitialize()

{

CurrChild = Children.begin();

BehaviorObserver observer = std::bind(&Sequence::OnChildComplete, this, std::placeholders::_1);

Tree->Start(*CurrChild, &observer);

}

void Sequence::OnChildComplete(EStatus Status)

{

Behavior* child = *CurrChild;

if (child->IsFailuer())

{

m_pBehaviorTree->Stop(this, EStatus::Failure);

return;

}

assert(child->GetStatus() == EStatus::Success);

if (++CurrChild == Children.end())

{

Tree->Stop(this, EStatus::Success);

}

else

{

BehaviorObserver observer = std::bind(&Sequence::OnChildComplete, this, std::placeholders::_1);

Tree->Start(*CurrChild, &observer);

}

}