Time.cpp

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#include "Engine/Utility/Time.hpp"
#include "Engine/engine.hpp"
#include "Engine/Renderer/IMGUI/imgui.h"

namespace Engine
{
    float beginTime = 0;
    float endTime = 0;

    Time::Time() : deltaTime(0)
    {
        previousFramerates.resize(maxIterations);
    }

    float Time::GetDeltaTime() const
    {
        return deltaTime;
    }

    int Time::GetMaxIterations() const
    {
        return maxIterations;
    }

    eastl::vector<float> Time::GetPreviousFramerates() const
    {
        return previousFramerates;
    }

    void Time::OnUpdateBegin()
    {
        beginTime = float(glfwGetTime());
    }

    void Time::OnUpdateEnd()
    {
        endTime = float(glfwGetTime());
        deltaTime = beginTime > 0.0 ? float(endTime - beginTime) : float(1.0f / 60.0f);
        previousFramerates[iterations + 1 >= maxIterations ? 0 : iterations + 1] = ImGui::GetIO().Framerate;
        iterations++;
    }
} //namespace Engine