Finished lecture 82

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

CMakeLists.txt

@@ -7,6 +7,12 @@ project(LightYears
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFf)
+set(CMAKE_EXPORT_COMPILE_COMMANDS   ON)
+
+if(APPLE)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-command-line-argument")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-unused-command-line-argument")
+endif()
 
 include(FetchContent)
 set(SFML_LIB_NAME SFML)

LightYearsEngine/CMakeLists.txt

@@ -10,6 +10,9 @@ add_library(${LIGHT_YEARS_ENGINE_TARGET_NAME} STATIC
 
 	${CMAKE_CURRENT_SOURCE_DIR}/include/framework/World.h
 	${CMAKE_CURRENT_SOURCE_DIR}/src/framework/World.cpp
+
+  ${CMAKE_CURRENT_SOURCE_DIR}/include/framework/Actor.h
+  ${CMAKE_CURRENT_SOURCE_DIR}/src/framework/Actor.cpp
 )
 
 target_include_directories(${LIGHT_YEARS_ENGINE_TARGET_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)

LightYearsEngine/include/framework/Actor.h

@@ -0,0 +1,20 @@
+#pragma once
+
+class World;
+
+namespace ly {
+
+class Actor {
+public:
+  Actor(World *owningWorld);
+
+  void         BeginPlayInternal();
+  virtual void BeginPlay();
+  virtual void Tick(float deltaTime);
+
+private:
+  World *mOwningWorld;
+  bool   mHasBeganPlay;
+};
+
+} // namespace ly

LightYearsEngine/include/framework/Application.h

@@ -1,34 +1,38 @@
 #pragma once
-#include <SFML/Graphics.hpp>
+#include "World.h"
 #include "framework/Core.h"
+#include <SFML/Graphics.hpp>
 
 namespace ly {
 
-	class World;
-	class Application {
-	public:
-		Application();
-		void Run();
+class Application {
+public:
+  Application();
+  void Run();
 
-		template<typename WorldType>
-		weak<World> LoadWorld() {
-			shared<WorldType> newWorld{ new WorldType{this} };
-			currentWorld = newWorld;
-			currentWorld->BeginPlayInternal();
-			return newWorld;
-		}
-	private:
-		void TickInternal(float deltaTime);
-		void RenderInternal();	
+  template <typename WorldType>
+  weak<World> LoadWorld();
 
-		virtual void Render();
-		virtual void Tick(float deltaTime);
+private:
+  void TickInternal(float deltaTime);
+  void RenderInternal();
 
-		sf::RenderWindow mWindow;
-		float mTargetFrameRate;
-		sf::Clock mTickClock;
+  virtual void Render();
+  virtual void Tick(float deltaTime);
 
-		shared<World> currentWorld;
-	};
+  sf::RenderWindow mWindow;
+  float            mTargetFrameRate;
+  sf::Clock        mTickClock;
 
+  shared<World> currentWorld;
+};
+
+template <typename WorldType>
+inline weak<World> Application::LoadWorld() {
+  shared<WorldType> newWorld{new WorldType{this}};
+  currentWorld = newWorld;
+  currentWorld->BeginPlayInternal();
+  return newWorld;
 }
+
+} // namespace ly

LightYearsEngine/include/framework/World.h

@@ -1,21 +1,33 @@
 #pragma once
 
+#include "framework/Core.h"
+class Application;
+class Actor;
+
 namespace ly {
-	class Application;
 
-	class World {
-	public:
-		World(Application *owningApp);
+class World {
+public:
+  World(Application *owningApp);
 
-		void BeginPlayInternal();
-		void TickInternal(float deltaTime);
+  void BeginPlayInternal();
+  void TickInternal(float deltaTime);
 
-		virtual ~World();
+  virtual ~World();
 
-	private:
-		void BeginPlay();
-		void Tick(float deltaTime);
-		Application* mOwningApp;
-		bool mBeganPlay;
-	};
-}
+  template <typename ActorType>
+  weak<ActorType> SpawnActor() {
+    shared<ActorType> newActor{new ActorType{this}};
+    mPendingActors.push_back(newActor);
+    return newActor;
+  }
+
+private:
+  void                BeginPlay();
+  void                Tick(float deltaTime);
+  Application        *mOwningApp;
+  bool                mBeganPlay;
+  List<shared<Actor>> mActors;
+  List<shared<Actor>> mPendingActors;
+};
+} // namespace ly

LightYearsEngine/src/framework/Actor.cpp

@@ -0,0 +1,22 @@
+#include "framework/Actor.h"
+#include "framework/Core.h"
+
+namespace ly {
+Actor::Actor(World *owningWorld)
+    : mOwningWorld{owningWorld}, mHasBeganPlay{false} {}
+
+void Actor::BeginPlayInternal() {
+
+  if (!mHasBeganPlay) {
+    mHasBeganPlay = true;
+    BeginPlay();
+  }
+}
+
+void Actor::BeginPlay() {
+  LOG("Actor begin play");
+}
+void Actor::Tick(float deltaTime) {
+  LOG("Actor tick");
+}
+} // namespace ly

LightYearsEngine/src/framework/Application.cpp

@@ -3,63 +3,53 @@
 #include "framework/World.h"
 
 namespace ly {
-	Application::Application():
-		mWindow{sf::VideoMode(1440,1024), "LightYears"},
-		mTargetFrameRate{60.0f},
-		mTickClock{},
-		currentWorld{nullptr}
-	{
-	}
+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);
-	}
+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.f, mWindow.getSize().y / 2.f);
+  mWindow.draw(rect);
+}
+} // namespace ly