PlayerHealthBar

//PlayerHealthBar.h
#pragma once
#include "stdafx.h"
#include "GUIBase.h"

class Sprite;
//class SpriteManager;

class PlayerHealthBar : public GUIBase {
public:
    PlayerHealthBar(sf::Texture *p_frontTexture, sf::Texture *p_backTexture);
    ~PlayerHealthBar();

    void Update(int p_currentHealth, unsigned int p_maxHealth);

    void draw(sf::RenderTarget &p_window, sf::RenderStates p_renderStates = sf::RenderStates::Default) const;

private:
    int m_backgroundHeight, m_backgroundWidth;
};


//PlayerHealthBar.cpp
#include "stdafx.h"
#include "PlayerHealthBar.h"
#include "Sprite.h"


PlayerHealthBar::PlayerHealthBar(sf::Texture *p_frontTexture, sf::Texture *p_backTexture) : GUIBase()
{
    m_sprite = new Sprite[2];

    m_sprite[0].setTexture(*p_backTexture);
    m_sprite[1].setTexture(*p_frontTexture);

    m_backgroundHeight = m_sprite[0].getTexture()->getSize().y;
    m_backgroundWidth = m_sprite[0].getTexture()->getSize().x;
}

PlayerHealthBar::~PlayerHealthBar()
{
    delete [] m_sprite;
}

void PlayerHealthBar::Update(int p_currentHealth, unsigned int p_maxHealth)
{
    m_sprite[0].setPosition(m_position);
    m_sprite[1].setPosition(m_position.x - 2, m_position.y - 11);

    float percentage = ((float)p_currentHealth / p_maxHealth);
    sf::IntRect size(0,                                                             //X base
                     m_backgroundHeight - (m_backgroundHeight * percentage),        //Y base
                     m_backgroundWidth,                                             //Width
                     m_backgroundHeight * percentage);                              //Height

    m_sprite[0].setTextureRect(size);
}

void PlayerHealthBar::draw(sf::RenderTarget &p_window, sf::RenderStates p_states) const {
    p_window.draw(m_sprite[0]);
    p_window.draw(m_sprite[1]);
}