#pragma once
#include "Vector.h"
#include "Particle.h"

class ParticleEmitter
{
public:
	ParticleEmitter(void);
	~ParticleEmitter(void);

private:
	float m_Radius;//emitter type=point if radius=0
	
	/*
	float m_Transparency[3];
	float albedo;
	float symmetry;
	*/

	Vector* m_ScriptPositions;
	int m_ScriptPositionCount;
	float m_Offset;

	int m_Type;
	Vector m_Position;
	float m_Velocity;
	float m_VelocityVariation;
	Vector m_Direction;
	unsigned int m_TimeToLive; //if 0 live forever
	float m_Size;
	float m_Sizevariation;
	unsigned int m_TTLvariation;
	unsigned int m_EmissionRate; //particles/sec; if 0 emits as much as possible
	
	bool m_isDirectionSet;

	unsigned int m_EmittedInSecond; //number of particles allready emitted in this second

public:

	unsigned int Emit(unsigned int Dt,unsigned int maxcount,Particle* particles,Vector CamPos=Vector());
	void setPosition(Vector pos){m_Position=pos;}
	void setRadius(float radius){m_Radius=radius;}
	void setVelocity(float vel){m_Velocity=vel;}
	void setVelocityVariation(float vel){m_VelocityVariation=vel;}
	void setDirection(Vector dir){m_Direction=dir;m_isDirectionSet=true;}
	void setTimeToLive(unsigned int ttl){m_TimeToLive=ttl;}
	void setTimeToLiveVariation(unsigned int ttl){m_TTLvariation=ttl;}
	void setSize(float size){m_Size=size;}
	void setSizevariation(float var){m_Sizevariation=var;}
	void setEmissionRate(unsigned int rate){m_EmissionRate=rate;}
	void setPositionsFile(char* filename);
	void setOffset(float o){m_Offset=o;}

	float getSize(){return m_Size;}
};