#include "WalkThroughRecorder.h"
#include "Camera.h"
#include "Vector3.h"
#include <sstream>

using namespace std;


namespace CHCDemoEngine
{


WalkThroughRecorder::WalkThroughRecorder(const std::string &filename):
mFile(filename.c_str())
{
}


void WalkThroughRecorder::WriteFrame(Camera *cam)
{
	FrameInfo info(cam->GetPosition(), cam->GetDirection());
	mFile << info << endl;
}


WalkThroughPlayer::WalkThroughPlayer(const std::string &filename):
mFrame(0)
{
	ifstream file(filename.c_str());
	FrameInfo info;
	int i=0;

	std::string token;

	while(std::getline(file, token)) 
	{
		std::stringstream line(token);

		line >> info;
		mFrameInfos.push_back(info);
	}
}


bool WalkThroughPlayer::ReadNextFrame(Camera *cam)
{
	cam->SetDirection(mFrameInfos[mFrame].mDirection);
	cam->SetPosition(mFrameInfos[mFrame].mPosition);

	mFrame = (mFrame + 1) % (int)mFrameInfos.size();

	return mFrame != 0;
}


}