///////////////////////////////////////////////////////////////////////
//	CEmitter.h
//	Author: Christian Benavides
//  Description: Class in charge of managing the initialization and
//	update of the particles. 
////////////////////////////////////////////////////////////////////////

#pragma once

#include <vector>

#define MAX_NUM_PARTICLES 100
#define DEFAULT_SPEED 10

class CParticle;
class CConsole;
class CPlane;

class CEmitter
{
	Vector m_ptPosition;

	std::vector<CParticle*> m_vAliveParticles;
	std::vector<CParticle*> m_vDeadParticles;

	std::vector<CParticle*>::iterator m_itAliveIterator;


	float	m_fSpawnRatePerSec;
	float	m_fSpawnTimer;
	float	m_fMaxLifeTime;

	int		m_nNumParticles;

	CPlane* m_myGroundPlane;	///	Plane to test against

public:

	CEmitter();
	CEmitter(Vector _ptPosition, const int& _nNumParticles, const float& _fLifeTime , const float& _fSpawnRate);
	~CEmitter();

	/*ACCESORS*/
	Vector GetPosition() const { return m_ptPosition; };
	int GetNumParticles() const { return m_nNumParticles; };
	float GetSpawnRate() const { return m_fSpawnRatePerSec; };
	float GetLifeTime() const { return m_fMaxLifeTime; };
	
	/*MUTATORS*/
	void SetPosition(Vector _ptPosition) { m_ptPosition= _ptPosition; };
	void SetNumParticles(int _nNumParticles) { m_nNumParticles = _nNumParticles; };
	void SetSpawnRate(float _fSpawnRate) {  m_fSpawnRatePerSec= _fSpawnRate; };
	void SetLifeTime(float _fLifeTime)  { m_fMaxLifeTime = _fLifeTime; };
	void SetPlane(CPlane* _pPlane)	{ m_myGroundPlane = _pPlane; };

	/*METHODS*/
	CParticle*  InitializeParticle();
	void		RemoveParticle(std::vector<CParticle*>::iterator&  _pParticle);

	float	GetRandomLifeTime() const;
	Vector	GetRandomVelocity() const;


	void Update(float _dt);
	void PrintParticleStatus(CConsole* _hConsole);
	void TestAgainstPlane(CParticle** _plane);
};