extracted game logic into separate library

CMakeLists.txt

@@ -9,4 +9,6 @@ project ("KoiKoi")
 add_subdirectory ("vendor/spdlog")
 add_subdirectory ("vendor/glfw")
 add_subdirectory ("vendor/lol")
+
+add_subdirectory ("engine")
 add_subdirectory ("src")

engine/Board.cpp

@@ -0,0 +1,21 @@
+#include "Board.hpp"
+
+#include "Game.hpp"
+
+Board::Board(Game* parent) :
+	parent(parent)
+{
+	
+}
+
+void Board::RevealCard()
+{
+	openCards.push_back(parent->GetStack().DrawCard());
+	if (callback)
+		callback(openCards.back());
+}
+
+void Board::SetRevealCallback(RevealCallbackFunc callbackFunc)
+{
+	callback = callbackFunc;
+}

engine/Board.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <vector>
+#include "Card.hpp"
+
+typedef std::function<void(std::shared_ptr<Card>)> RevealCallbackFunc;
+
+class Game;
+
+class Board
+{
+public:
+	Board(Game* parent);
+
+	void RevealCard();
+	inline const std::vector<std::shared_ptr<Card>>& GetOpenCards() { return openCards; }
+
+	void SetRevealCallback(RevealCallbackFunc callbackFunc);
+
+private:
+	std::vector<std::shared_ptr<Card>> openCards;
+
+	RevealCallbackFunc callback;
+	Game* parent;
+};

engine/CMakeLists.txt

@@ -0,0 +1,10 @@
+add_library(koikoiengine STATIC 
+	"Game.cpp"
+	"Card.cpp"
+	"CardStack.cpp"
+	"Board.cpp"
+)
+
+target_include_directories(koikoiengine PUBLIC 
+	${CMAKE_CURRENT_LIST_DIR}
+)

engine/Card.cpp

@@ -0,0 +1,7 @@
+#include "Card.hpp"
+
+Card::Card(Month month, int type) :
+	suit(month), type(type)
+{
+
+}

engine/Card.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+enum class Month
+{
+	January, February, March, April, May, June, July, August, September, October, November, December
+};
+
+class Card
+{
+public:
+	Card(Month month, int type);
+
+	inline Month GetSuit() { return suit; }
+	inline int GetType() { return type; }
+
+private:
+	Month suit;
+	int type;
+};

engine/CardStack.cpp

@@ -0,0 +1,32 @@
+#include "CardStack.hpp"
+
+#include <algorithm>
+#include <chrono>
+#include <random>
+
+CardStack::CardStack()
+{
+	// Create a full stack of cards
+	for (int month = 0; month < 11; month++)
+	{
+		for (int type = 0; type < 4; type++)
+		{
+			stack.push_back(std::make_shared<Card>(static_cast<Month>(month), type));
+		}
+	}
+
+	// Shuffle stack
+	std::default_random_engine engine(time(0));
+	std::shuffle(stack.begin(), stack.end(), engine);
+}
+
+CardStack::~CardStack()
+{
+}
+
+std::shared_ptr<Card> CardStack::DrawCard()
+{
+	std::shared_ptr<Card> drawnCard = stack.back();
+	stack.pop_back();
+	return drawnCard;
+}

engine/CardStack.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include "Card.hpp"
+
+class CardStack
+{
+public:
+	CardStack();
+	~CardStack();
+
+	std::shared_ptr<Card> DrawCard();
+	inline bool Empty() const { return stack.empty(); }
+
+private:
+	std::vector<std::shared_ptr<Card>> stack;
+};

engine/Game.cpp

@@ -0,0 +1,14 @@
+#include "Game.hpp"
+
+Game::Game() :
+	board(this)
+{
+
+}
+
+void Game::Setup()
+{
+	// Put 8 cards on the table
+	for (int i = 0; i < 8; i++)
+		board.RevealCard();
+}

engine/Game.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "CardStack.hpp"
+#include "Board.hpp"
+
+class Game
+{
+public:
+	Game();
+	~Game() {}
+
+	void Setup();
+	inline CardStack& GetStack() { return stack; }
+	inline Board& GetBoard() { return board; }
+
+private:
+	CardStack stack;
+	Board board;
+};

src/Application.cpp

@@ -10,8 +10,8 @@
 #include <stbi_image.h>
 
 #include "Window.hpp"
-#include "CardStack.hpp"
-#include "Board.hpp"
+#include "layers/CardStackLayer.hpp"
+#include "layers/BoardLayer.hpp"
 
 #include "resources.h"
 #include "ObjectIDs.hpp"
@@ -41,6 +41,12 @@ void Application::Run()
 	}
 }
 
+void Application::OnKeyPressed(unsigned int character)
+{
+	if (character == 'd' || character == 'D')
+		game.GetBoard().RevealCard();
+}
+
 Application::Application() :
 	valid(true), window(nullptr)
 {
@@ -56,7 +62,7 @@ Application::Application() :
 	}
 	spdlog::debug("GLFW initialized");
 
-	window = new Window(1280, 720, "Koi Koi");
+	window = new Window(this, 1280, 720, "Koi Koi");
 	valid = window->IsValid();
 
 	if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress))
@@ -78,11 +84,14 @@ Application::Application() :
 	manager.Create<lol::Shader>(SHADER_CARD, std::string((char*)card_vs, card_vs_size), std::string((char*)card_fs, card_fs_size));
 	spdlog::debug("Done!");
 
-	spdlog::debug("Creating card stack");
-	
+	spdlog::debug("Setting up layers");
+	layerStack.push_back(new CardStackLayer(manager, game.GetStack()));
+	BoardLayer* boardLayer = new BoardLayer(manager, game.GetBoard());
+	game.GetBoard().SetRevealCallback(std::bind(&BoardLayer::OnRevealCard, boardLayer, std::placeholders::_1));
+	layerStack.push_back(boardLayer);
 
-	spdlog::debug("Setting up board");
-	layerStack.push_back(new Board(manager));
+	spdlog::debug("Setting up game");
+	game.Setup();
 
 	glViewport(0, 0, 1280, 720);
 

src/Application.hpp

@@ -4,6 +4,7 @@
 #include <lol/lol.hpp>
 
 #include "CardStack.hpp"
+#include "Game.hpp"
 
 
 class Window;
@@ -19,11 +20,14 @@ public:
 
 public:
 	void Run();
+	void OnKeyPressed(unsigned int character);	// TODO: Remove later on
 
 private:
 	bool valid;
 	Window* window;
 
+	Game game;
+
 	lol::ObjectManager manager;
 	std::vector<lol::Layer*> layerStack;
 

src/Board.cpp

@@ -1,50 +0,0 @@
-#include "Board.hpp"
-
-#include "CardStack.hpp"
-#include "ObjectIDs.hpp"
-
-Board::Board(lol::ObjectManager& manager) :
-	Layer("Board"), stack(manager)
-{
-	stack.SetScale(glm::vec3(0.2f));
-	stack.SetPosition(glm::vec3(
-		0.25f - (stack.GetSize().x + 0.05f),
-		0.5f - (stack.GetSize().y * 0.5f),
-		0.0f
-	));
-
-	// Draw 8 cards from stack
-	for (int y = 0; y < 2; y++)
-	{
-		for (int x = 0; x < 4; x++)
-		{
-			std::shared_ptr<Card> card = stack.DrawCard();
-			card->SetScale(glm::vec3(0.2f));
-
-			glm::vec3 cardSize = card->GetSize();
-			card->SetPosition(glm::vec3(
-				0.25f + (cardSize.x + 0.05f) * x, 
-				0.5f - cardSize.y - 0.025f + (cardSize.y + 0.05f) * y,
-				0.0f
-			));
-
-			openCards.push_back(card);
-		}
-	}
-}
-
-Board::~Board()
-{
-}
-
-void Board::OnUpdate()
-{
-}
-
-void Board::OnRender(lol::CameraBase& camera)
-{
-	stack.Draw(camera);
-
-	for (std::shared_ptr<Card> card : openCards)
-		card->Draw(camera);
-}

src/Board.hpp

@@ -1,19 +0,0 @@
-#pragma once
-
-#include <lol/lol.hpp>
-#include "Card.hpp"
-#include "CardStack.hpp"
-
-class Board : public lol::Layer
-{
-public:
-	Board(lol::ObjectManager& manager);
-	~Board();
-
-	void OnUpdate() override;
-	void OnRender(lol::CameraBase& camera) override;
-
-private:
-	CardStack stack;
-	std::vector<std::shared_ptr<Card>> openCards;
-};

src/CMakeLists.txt

@@ -2,9 +2,10 @@ add_executable(koikoi
 	"main.cpp"
 	"Application.cpp" 
 	"Window.cpp"
-	"Card.cpp"
-	"CardStack.cpp"
-	"Board.cpp"
+	"CardSprite.cpp"
+	"CardStackSprite.cpp"
+	"layers/CardStackLayer.cpp"
+	"layers/BoardLayer.cpp"
 )
 
 set( RC_DEPENDS "" )
@@ -41,10 +42,12 @@ target_include_directories(koikoi PUBLIC
 	spdlog
 	glfw
 	lol
+	koikoiengine
 )
 
 target_link_libraries(koikoi
 	spdlog
 	glfw
 	lol
+	koikoiengine
 )

src/Card.hpp

@@ -1,27 +0,0 @@
-#pragma once
-
-#include <lol/lol.hpp>
-
-enum class Month
-{
-	January, February, March, April, May, June, July, August, September, October, November, December
-};
-
-class Card : public lol::Drawable, public lol::Transformable
-{
-public:
-	Card(lol::ObjectManager& manager, Month month, int type);
-
-	void UpdateSuitAndType(Month month, int type);
-	glm::vec3 GetSize() { return glm::vec3(0.61035f, 1.0f, 0.0f) * GetScale(); }
-
-private:
-	void PreRender(const lol::CameraBase& camera) override;
-
-private:
-	std::shared_ptr<lol::Texture2D> cards;
-
-	Month suit;
-	int type;
-	glm::vec2 textureOffset;
-};

src/CardSprite.cpp

@@ -1,9 +1,10 @@
-#include "Card.hpp"
+#include "CardSprite.hpp"
 
 #include <spdlog/spdlog.h>
 #include "ObjectIDs.hpp"
 
-Card::Card(lol::ObjectManager& manager, Month month, int type)
+CardSprite::CardSprite(lol::ObjectManager& manager, std::shared_ptr<Card> card) :
+	card(card)
 {
 	try
 	{
@@ -36,22 +37,14 @@ Card::Card(lol::ObjectManager& manager, Month month, int type)
 
 	shader = manager.Get<lol::Shader>(SHADER_CARD);
 	cards = manager.Get<lol::Texture2D>(TEXTURE_CARD_ATLAS);
-
-	UpdateSuitAndType(month, type);
-}
-
-void Card::UpdateSuitAndType(Month month, int type)
-{
-	this->suit = month;
-	this->type = type;
-
+	
 	textureOffset = glm::vec2(
-		static_cast<int>(this->suit) / 12.0f,
-		this->type / 4.0f
+		static_cast<int>(card->GetSuit()) / 12.0f,
+		card->GetType() / 4.0f
 	);
 }
 
-void Card::PreRender(const lol::CameraBase& camera)
+void CardSprite::PreRender(const lol::CameraBase& camera)
 {
 	cards->Bind();
 	shader->SetUniform("offset", textureOffset);

src/CardSprite.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+#include <lol/lol.hpp>
+#include "Card.hpp"
+
+class CardSprite : public lol::Drawable, public lol::Transformable
+{
+public:
+	CardSprite(lol::ObjectManager& manager, std::shared_ptr<Card> card);
+
+	glm::vec3 GetSize() { return glm::vec3(0.61035f, 1.0f, 0.0f) * GetScale(); }
+
+private:
+	void PreRender(const lol::CameraBase& camera) override;
+
+private:
+	std::shared_ptr<lol::Texture2D> cards;
+	glm::vec2 textureOffset;
+
+	std::shared_ptr<Card> card;
+};

src/CardStack.hpp

@@ -1,22 +0,0 @@
-#pragma once
-
-#include <lol/lol.hpp>
-#include "Card.hpp"
-
-class CardStack : public lol::Transformable, public lol::Drawable
-{
-public:
-	CardStack(lol::ObjectManager& manager);
-	~CardStack();
-
-	std::shared_ptr<Card> DrawCard();
-	inline bool Empty() { return stack.empty(); }
-	glm::vec3 GetSize() { return glm::vec3(0.61035f, 1.0f, 0.0f) * GetScale(); }
-
-private:
-	void PreRender(const lol::CameraBase& camera) override;
-
-private:
-	std::shared_ptr<lol::Texture2D> backside;
-	std::vector<std::shared_ptr<Card>> stack;
-};

src/CardStackSprite.cpp

@@ -1,14 +1,10 @@
-#include "CardStack.hpp"
-
-#include <algorithm>
-#include <chrono>
-#include <random>
+#include "CardStackSprite.hpp"
 
 #include <spdlog/spdlog.h>
 
 #include "ObjectIDs.hpp"
 
-CardStack::CardStack(lol::ObjectManager& manager)
+CardStackSprite::CardStackSprite(lol::ObjectManager& manager)
 {
 	try
 	{
@@ -40,36 +36,16 @@ CardStack::CardStack(lol::ObjectManager& manager)
 	}
 
 	shader = manager.Get<lol::Shader>(SHADER_CARD);
-	backside = manager.Get<lol::Texture2D>(TEXTURE_BACKSIDE);
-
-	// Create a full stack of cards
-	for (int month = 0; month < 11; month++)
-	{
-		for (int type = 0; type < 4; type++)
-		{
-			stack.push_back(std::make_shared<Card>(manager, static_cast<Month>(month), type));
-		}
-	}
-
-	// Shuffle stack
-	std::default_random_engine engine(time(0));
-	std::shuffle(stack.begin(), stack.end(), engine);
+	texture = manager.Get<lol::Texture2D>(TEXTURE_BACKSIDE);
 }
 
-CardStack::~CardStack()
+CardStackSprite::~CardStackSprite()
 {
 }
 
-std::shared_ptr<Card> CardStack::DrawCard()
+void CardStackSprite::PreRender(const lol::CameraBase& camera)
 {
-	std::shared_ptr<Card> drawnCard = stack.back();
-	stack.pop_back();
-	return drawnCard;
-}
-
-void CardStack::PreRender(const lol::CameraBase& camera)
-{
-	backside->Bind();
+	texture->Bind();
 	shader->SetUniform("offset", glm::vec2(0.0f));
 
 	shader->SetUniform("model", transformation);

src/CardStackSprite.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <lol/lol.hpp>
+
+class CardStackSprite : public lol::Transformable, public lol::Drawable
+{
+public:
+	CardStackSprite(lol::ObjectManager& manager);
+	~CardStackSprite();
+
+	glm::vec3 GetSize() { return glm::vec3(0.61035f, 1.0f, 0.0f) * GetScale(); }
+
+private:
+	void PreRender(const lol::CameraBase& camera) override;
+
+private:
+	std::shared_ptr<lol::Texture2D> texture;
+};

src/Window.cpp

@@ -1,9 +1,10 @@
 #include "Window.hpp"
 
 #include <spdlog/spdlog.h>
+#include "Application.hpp"
 
-Window::Window(int width, int height, const std::string& title) :
-	window(NULL), valid(true)
+Window::Window(Application* app, int width, int height, const std::string& title) :
+	window(NULL), valid(true), app(app)
 {
 	window = glfwCreateWindow(width, height, title.c_str(), NULL, NULL);
 	if (window == NULL)
@@ -28,10 +29,20 @@ Window::Window(int width, int height, const std::string& title) :
 		}
 	);
 
+	glfwSetCharCallback(window,
+		[](GLFWwindow* window, unsigned int character)
+		{
+			UserData* data = (UserData*)glfwGetWindowUserPointer(window);
+			data->app->OnKeyPressed(character);
+		}
+	);
+
 	camera = lol::OrthogonalCamera(0.0f, ((float)width / (float)height) * 1.0f, 0.0f, 1.0f);
 	data.camera = &camera;
 	spdlog::debug("Created orthogonal camera");
 
+	data.app = app;
+
 	glfwSetWindowUserPointer(window, (void*)&data);
 }
 

src/Window.hpp

@@ -5,19 +5,23 @@
 #include <GLFW/glfw3.h>
 #include <lol/lol.hpp>
 
+class Application;
+
 struct UserData
 {
 	lol::OrthogonalCamera* camera;
+	Application* app;
 };
 
 class Window
 {
 public:
-	Window(int width, int height, const std::string& title);
+	Window(Application* app, int width, int height, const std::string& title);
 	~Window();
 
 	inline bool IsValid() { return valid; }
 	inline bool ShouldClose() { return glfwWindowShouldClose(window); }
+	inline GLFWwindow* GetNativeWindow() { return window; }
 
 	void Clear();
 	void Draw(lol::Layer& layer);
@@ -26,6 +30,7 @@ public:
 private:
 	bool valid;
 	GLFWwindow* window;
+	Application* app;
 	UserData data;
 
 	lol::OrthogonalCamera camera;

src/layers/BoardLayer.cpp

@@ -0,0 +1,55 @@
+#include "BoardLayer.hpp"
+
+BoardLayer::BoardLayer(lol::ObjectManager& manager, const Board& board) :
+	lol::Layer("Board"), manager(manager), board(board)
+{
+}
+
+void BoardLayer::OnUpdate()
+{
+}
+
+void BoardLayer::OnRender(lol::CameraBase& camera)
+{
+	for (CardSprite& sprite : sprites)
+		camera.Draw(sprite);
+}
+
+void BoardLayer::OnRevealCard(std::shared_ptr<Card> card)
+{
+	sprites.push_back(CardSprite(manager, card));
+	CardSprite& newCard = sprites.back();
+	newCard.SetScale(glm::vec3(0.2f));
+	
+	// If this is the first card to be put on the board, place it in the top left slot
+	if (sprites.size() == 1)
+	{
+		newCard.SetPosition(glm::vec3(
+			0.25f + 0.05f,
+			0.5f + 0.025f,
+			0.0f
+		));
+	}
+	else
+	{
+		// If an even number of cards has been drawn, placce the last one below the previous one
+		if (sprites.size() % 2 == 0)
+		{
+			CardSprite& spriteBeforeLast = sprites[sprites.size() - 2];
+			newCard.SetPosition(glm::vec3(
+				spriteBeforeLast.GetPosition().x,
+				spriteBeforeLast.GetPosition().y - newCard.GetSize().y - 0.05f,
+				0.0f
+			));
+		}
+		else // Else, place it in the next row
+		{
+			CardSprite& secondSpriteBeforeLast = sprites[sprites.size() - 3];
+			newCard.SetPosition(glm::vec3(
+				secondSpriteBeforeLast.GetPosition().x + newCard.GetSize().x + 0.05f,
+				secondSpriteBeforeLast.GetPosition().y,
+				0.0f
+			));
+		}
+	}
+}

src/layers/BoardLayer.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <lol/lol.hpp>
+#include "Board.hpp"
+#include "../CardSprite.hpp"
+
+class BoardLayer : public lol::Layer
+{
+public:
+	BoardLayer(lol::ObjectManager& manager, const Board& board);
+
+	void OnUpdate() override;
+	void OnRender(lol::CameraBase& camera) override;
+
+	void OnRevealCard(std::shared_ptr<Card> card);
+
+private:
+	const Board& board;
+
+	lol::ObjectManager& manager;
+	std::vector<CardSprite> sprites;
+};

src/layers/CardStackLayer.cpp

@@ -0,0 +1,25 @@
+#include "CardStackLayer.hpp"
+
+CardStackLayer::CardStackLayer(lol::ObjectManager& manager, const CardStack& stack) :
+	lol::Layer("Stack"), stack(stack), sprite(manager)
+{
+	sprite.SetScale(glm::vec3(0.2f));
+	sprite.SetPosition(glm::vec3(
+		0.25f - sprite.GetSize().x - 0.05f,
+		0.5f - 0.5f* sprite.GetSize().y,
+		0.0f
+	));
+}
+
+void CardStackLayer::OnUpdate()
+{
+	if (stack.Empty())
+		sprite.SetScale(glm::vec3(0.0f));
+	else
+		sprite.SetScale(glm::vec3(0.2f));
+}
+
+void CardStackLayer::OnRender(lol::CameraBase& camera)
+{
+	camera.Draw(sprite);
+}

src/layers/CardStackLayer.hpp

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <lol/lol.hpp>
+#include "CardStack.hpp"
+
+#include "../CardStackSprite.hpp"
+
+class CardStackLayer : public lol::Layer
+{
+public:
+	CardStackLayer(lol::ObjectManager& manager, const CardStack& stack);
+
+	void OnUpdate() override;
+	void OnRender(lol::CameraBase& camera) override;
+
+private:
+	const CardStack& stack;
+	CardStackSprite sprite;
+};