LightManager.cpp

#include "Lighting/LightManager.h"
#include "imgui/imgui.h"
 
#include "glm/gtc/type_ptr.hpp"
 
#include <string>
 
static int ID = 0;
 
LightManager::LightManager()
{
    lightManagerID = ID++;
    position.y = -0.3f;
    position.x = position.z = 0.0f;
    color[0] = color[1] = color[2] = color[3] = 0.8;
    ambientColor[0] = ambientColor[1] = ambientColor[2] = ambientColor[3] = 0.8;
    strength = 50.0f;
}
 
LightManager::~LightManager()
{
}
 
void LightManager::ShowSettings(bool renderWindow, bool *pOpen)
{
    if (*pOpen)
    {
        if (renderWindow)
        {
            ImGui::Begin(("Light Setting##" + std::to_string(lightManagerID)).c_str(), pOpen);
        }
 
        ImGui::Text("Strength");
        ImGui::DragFloat("##lightStrength", &strength, 0.1f);
        ImGui::Text("Position");
        ImGui::DragFloat3("##lightPosition", &position[0], 0.01f);
        ImGui::Separator();
        ImGui::Separator();
        ImGui::Text("Light Color");
        ImGui::ColorEdit3("##lightColor", color);
 
        if (renderWindow)
        {
            ImGui::End();
        }
    }
}
 
nlohmann::json LightManager::Save()
{
    nlohmann::json data, tmp;
    tmp["x"] = position.x;
    tmp["y"] = position.y;
    tmp["z"] = position.z;
    data["position"] = tmp;
    tmp = nlohmann::json();
    tmp["r"] = color[0];
    tmp["g"] = color[1];
    tmp["b"] = color[2];
    tmp["a"] = color[3];
    data["color"] = tmp;
    data["strength"] = strength;
    return data;
}
 
void LightManager::Load(nlohmann::json data)
{
    position[0] = data["position"]["x"];
    position[1] = data["position"]["y"];
    position[2] = data["position"]["z"];
    color[0] = data["color"]["r"];
    color[1] = data["color"]["g"];
    color[2] = data["color"]["b"];
    color[3] = data["color"]["a"];
    strength = data["strength"];
}