Finish lecture 82: Implement the World class

Signed-off-by: Daniel Henry <iamdanhenry@gmail.com>

LightYearsEngine/src/EntryPoint.cpp

@@ -0,0 +1,8 @@
+#include "EntryPoint.h"
+#include "framework/Application.h"
+
+int main() {
+	ly::Application* app = GetApplication();
+	app->Run();
+	delete app;
+}

LightYearsEngine/src/framework/Application.cpp

@@ -0,0 +1,65 @@
+#include "framework/Application.h"
+#include "framework/Core.h"
+#include "framework/World.h"
+
+namespace ly {
+	Application::Application():
+		mWindow{sf::VideoMode(1440,1024), "LightYears"},
+		mTargetFrameRate{60.0f},
+		mTickClock{},
+		currentWorld{nullptr}
+	{
+	}
+
+	void Application::Run()
+	{
+		mTickClock.restart();
+		float accumulatedTime = 0.0f;
+		float targetDeltaTime = 1.f / mTargetFrameRate;
+		while (mWindow.isOpen()) {
+			sf::Event windowEvent;
+			while (mWindow.pollEvent(windowEvent)) {
+				if (windowEvent.type == sf::Event::EventType::Closed) {
+					mWindow.close();
+				}
+			}
+			float frameDeltaTime = mTickClock.restart().asSeconds();
+			accumulatedTime += frameDeltaTime;
+			while (accumulatedTime > targetDeltaTime) {
+				accumulatedTime -= targetDeltaTime;
+				TickInternal(targetDeltaTime);
+				RenderInternal();
+			}
+		}
+	}
+
+	void Application::TickInternal(float deltaTime)
+	{
+		Tick(deltaTime);
+		if (currentWorld) {
+			currentWorld->TickInternal(deltaTime);
+		}
+	}
+
+	void Application::Tick(float deltaTime)
+	{
+	}
+
+	void Application::RenderInternal()
+	{
+		mWindow.clear();
+
+		Render();
+
+		mWindow.display();
+	}
+
+	void Application::Render()
+	{
+		sf::RectangleShape rect{ sf::Vector2f{100,100} };
+		rect.setFillColor(sf::Color::Green);
+		rect.setOrigin(50, 50);
+		rect.setPosition(mWindow.getSize().x / 2, mWindow.getSize().y / 2);
+		mWindow.draw(rect);
+	}
+}

LightYearsEngine/src/framework/World.cpp

@@ -0,0 +1,36 @@
+#include "framework/World.h"
+#include "framework/Core.h"
+
+namespace ly {
+	World::World(Application* owningApp) : mOwningApp{ owningApp }, mBeganPlay{ false } {
+
+	}
+
+	void World::BeginPlayInternal() {
+		if (!mBeganPlay) {
+			mBeganPlay = true;
+			BeginPlay();
+		}
+	}
+
+	World::~World()
+	{
+	}
+
+	void World::TickInternal(float deltaTime)
+	{
+		Tick(deltaTime);
+	}
+
+	
+
+	void World::BeginPlay()
+	{
+		LOG("Began Play");
+	}
+
+	void World::Tick(float deltaTime)
+	{
+		LOG("Ticking at frame rate: %f", 1.f / deltaTime);
+	}
+}