#include <LTBL/Light/LightSystem.h>  
  #include <LTBL/Light/Light_Point.h>  
  #include <LTBL/Utils.h>  

  #include <assert.h>  
  #include <SFML/Graphics.hpp>  
  #include <sstream>  
  int main(int argc, char* args[])  
  {    
       sf::VideoMode vidMode;  
       vidMode.width = 800;  
       vidMode.height = 600;  
       vidMode.bitsPerPixel = 32;  
       assert(vidMode.isValid());  
       sf::RenderWindow win;  
       win.create(vidMode, "Let there be Light - Demo");  
       sf::View view;  
       sf::Vector2u windowSize(win.getSize());  
       view.setSize(sf::Vector2f(static_cast<float>(windowSize.x), static_cast<float>(windowSize.y)));  
       view.setCenter(view.getSize() / 2.0f);  
       // ---------------------- Background Image ---------------------  
       sf::Texture backgroundImage;  
       assert(backgroundImage.loadFromFile("data/background.png"));  
       // Tiling background  
       backgroundImage.setRepeated(true);  
       sf::Sprite backgroundSprite(backgroundImage);  
       backgroundSprite.setTextureRect(sf::IntRect(0, 0, vidMode.width * 2, vidMode.height * 2));  
       backgroundSprite.setPosition(-400.0f, -400.0f);  
       // --------------------- Light System Setup ---------------------  
       ltbl::LightSystem ls(AABB(Vec2f(0.0f, 0.0f),  
Vec2f(static_cast<float>(vidMode.width),  
static_cast<float>(vidMode.height))), &win,  
"data/lightFin.png", "data/shaders/lightAttenuationShader.frag");  
       // Create a light  
       ltbl::Light_Point* testLight = new ltbl::Light_Point();  
       testLight->m_intensity = 2.0f;  
       testLight->m_center = Vec2f(200.0f, 200.0f);  
       testLight->m_radius = 600.0f;  
       testLight->m_size = 15.0f;  
       testLight->m_spreadAngle = ltbl::pifTimes2;  
       testLight->m_softSpreadAngle = 0.0f;  
       testLight->CalculateAABB();  
       testLight->m_bleed = 0.4f;  
       testLight->m_linearizeFactor = 0.2f;  
       ls.AddLight(testLight);  
       testLight->SetAlwaysUpdate(true);  
       // Create a light  
       ltbl::Light_Point* testLight2 = new ltbl::Light_Point();  
       testLight2->m_center = Vec2f(200.0f, 200.0f);  
       testLight2->m_radius = 500.0f;  
       testLight2->m_size = 30.0f;  
       testLight2->m_color.r = 0.5f;  
       testLight2->m_intensity = 1.5f;  
       testLight2->m_spreadAngle = ltbl::pifTimes2;  
       testLight2->m_softSpreadAngle = 0.0f;  
       testLight2->CalculateAABB();  
       ls.AddLight(testLight2);  
       testLight2->SetAlwaysUpdate(false);  
       // Create an emissive light  
       ltbl::EmissiveLight* emissiveLight = new ltbl::EmissiveLight();  
       sf::Texture text;  
       if(!text.loadFromFile("data/emissive.png"))  
           abort();  
       emissiveLight->SetTexture(&text);  
       emissiveLight->SetRotation(45.0f);  
       emissiveLight->m_intensity = 1.3f;  
       ls.AddEmissiveLight(emissiveLight);  
       emissiveLight->SetCenter(Vec2f(500.0f, 500.0f));  
       // Create a hull by loading it from a file  
       ltbl::ConvexHull* testHull = new ltbl::ConvexHull();  
       if(!testHull->LoadShape("data/testShape.txt"))  
           abort();  
       // Pre-calculate certain aspects  
       testHull->CalculateNormals();  
       testHull->CalculateAABB();  
       testHull->SetWorldCenter(Vec2f(300.0f, 300.0f));  
       testHull->m_renderLightOverHull = true;  
       ls.AddConvexHull(testHull);  
       // ------------------------- Game Loop --------------------------  
       sf::Event eventStructure;  
       bool quit = false;  
       ls.m_useBloom = true;  
       while(!quit)  
       {  
           while(win.pollEvent(eventStructure))  
               if(eventStructure.type == sf::Event::Closed)  
               {  
                   quit = true;  
                   break;  
               }  
           if(sf::Keyboard::isKeyPressed(sf::Keyboard::A))  
               view.move(sf::Vector2f(-1.0f, 0.0f));  
           else if(sf::Keyboard::isKeyPressed(sf::Keyboard::D))  
               view.move(sf::Vector2f(1.0f, 0.0f));  
           if(sf::Keyboard::isKeyPressed(sf::Keyboard::W))  
               view.move(sf::Vector2f(0.0f, -1.0f));  
           else if(sf::Keyboard::isKeyPressed(sf::Keyboard::S))  
              view.move(sf::Vector2f(0.0f, 1.0f));  
           sf::Vector2i mousePos = sf::Mouse::getPosition(win);  
           //testLight2->IncCenter(ltbl::Vec2f(0.1f, 0.0f));  
           // Update light  
           testLight->SetCenter(Vec2f(static_cast<float>(mousePos.x), static_cast<float>(vidMode.height) -  
static_cast<float>(mousePos.y)));  
           win.clear();  
           win.setView(view);  
           ls.SetView(view);  
           // Draw the background  
           win.draw(backgroundSprite);  
           // Calculate the lights  
           ls.RenderLights();  
           // Draw the lights  
           ls.RenderLightTexture();  
           //ls.DebugRender();  
           win.display();  
       }  
       win.close();  
  }