LayerStack.cpp

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#include <algorithm>
 
#include <ElevateEngine/Core/Layers/LayerStack.h>
#include <ElevateEngine/Core/Layers/Layer.h>
 
Elevate::LayerStack::LayerStack()
{
}
 
Elevate::LayerStack::~LayerStack()
{
    for (Layer* layer : m_Layers)
        delete layer;
}
 
void Elevate::LayerStack::PushLayer(Layer* layer)
{   
    m_Layers.emplace(m_Layers.begin() + m_LayerInsertIndex, layer);
    m_LayerInsertIndex++;
}
 
void Elevate::LayerStack::PushOverlay(Layer* overlay)
{
    m_Layers.emplace_back(overlay);
}
 
void Elevate::LayerStack::PopLayer(Layer* layer)
{
    auto it = std::find(m_Layers.begin(), m_Layers.end(), layer);
    if (it != m_Layers.end())
    {
        m_Layers.erase(it);
        m_LayerInsertIndex--;
    }
}
 
void Elevate::LayerStack::PopOverlay(Layer* overlay)
{
    auto it = std::find(m_Layers.begin(), m_Layers.end(), overlay);
    if (it != m_Layers.end())
    {
        m_Layers.erase(it);
    }
}