core: formatting cleanup

Reviewed-on: Trianta/snakeplusplus#6

.gitignore

@@ -33,7 +33,20 @@
 *.json
 *.ps1
 
+# ---> CMake
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+build
+
 # Extras
 .vs*
-build
+.cache
-bin

CMakeLists.txt

@@ -4,7 +4,7 @@ project(
     snakeplusplus
     LANGUAGES CXX)
 
-set(CMAKE_CXX_STANDARD 11 CACHE STRING "The C++ standard to use")
+set(CMAKE_CXX_STANDARD 23 CACHE STRING "The C++ standard to use")
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)

src/botinterface.cpp

@@ -1,149 +1,343 @@
 #include "botinterface.hpp"
 #include "common.hpp"
+#include "gamestate.hpp"
 #include <array>
 #include <cstdlib>
+#include <iostream>
 #include <queue>
 #include <stdexcept>
-#include <SFML/System/Vector2.hpp>
 
-namespace snakeplusplus
+PlayerDirection lastKnownDirection = kNone;
-{
-    PlayerDirection lastKnownDirection = kNone;
 
-    AISnake::AISnake() {
+AISnake::AISnake(void) {
-        ;
+    ;
-    }
+}
 
-    PlayerDirection AISnake::GetInput(const sf::Vector2f* source)
+PlayerDirection AISnake::GetInput(void) {
-    {
+    sf::Vector2f source(g_pEngine->GetHeadLocation());
-        sf::Vector2f directionDelta;
+    //if (g_pEngine->state.m_bSmart && path.empty())
-        if (*source == path.top()) { path.pop(); }
+    //    return CurrentBestDecision();
-        if (path.empty()) { return kUp; } // Snake is trapped
+    sf::Vector2f directionDelta;
-        directionDelta = *source - path.top();
+
+    while (source == path.top() && !path.empty())
         path.pop();
-        if ((directionDelta.y == 1)
+    if (path.empty())
-                && (lastKnownDirection != kDown))
+        path.push(GetAnyOpenPath());
-            { lastKnownDirection = kUp; }
-        else if ((directionDelta.y == -1)
-                && (lastKnownDirection != kUp)) 
-            { lastKnownDirection = kDown; }
-        else if ((directionDelta.x == 1)
-                && (lastKnownDirection != kRight)) 
-            { lastKnownDirection = kLeft; }
-        else if ((directionDelta.x == -1)
-                && (lastKnownDirection != kLeft)) 
-            { lastKnownDirection = kRight; }
-        return lastKnownDirection;
-    }
 
-    // Gets a new path for the bot to follow
+    directionDelta = source - path.top();
-    // Uses DFS algorithm
+    path.pop();
-    void AISnake::GetNewPath(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries, const int snakeSize)
-    {
-        // Search for food
-        if (snakeSize < 135) {
-            BFS(gameBoard, source, boundaries);
-        } else {
-            DFS(gameBoard, source, boundaries);
-        }
-        // Create path for food
-        path.push(botPathUnsanitized.top());
-        botPathUnsanitized.pop();
-        while (!botPathUnsanitized.empty()) {
-            sf::Vector2f deltaVector = botPathUnsanitized.top() - path.top();
-            int delta = abs(deltaVector.x) + abs(deltaVector.y);
-            if (delta == 1) {
-                path.push(botPathUnsanitized.top());
-            }
-            botPathUnsanitized.pop();
-        }
-    }
 
-    void AISnake::BFS(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries) {
+    if ((directionDelta.y == 1) && (lastKnownDirection != kDown))
-        std::queue<sf::Vector2f> search;
+        lastKnownDirection = kUp;
-        std::vector<std::vector<bool>> visited(boundaries.y, std::vector<bool> (boundaries.x, false));
+    else if ((directionDelta.y == -1) && (lastKnownDirection != kUp)) 
-        bool foodFound = false;
+        lastKnownDirection = kDown;
-        search.push(source);
+    else if ((directionDelta.x == 1) && (lastKnownDirection != kRight))
-        while (!search.empty()) {
+        lastKnownDirection = kLeft;
-            sf::Vector2f currentLocation = search.front();
+    else if ((directionDelta.x == -1) && (lastKnownDirection != kLeft))
-            search.pop();
+        lastKnownDirection = kRight;
-            if (foodFound) { break; }
+    return lastKnownDirection;
-            if (visited.at(currentLocation.y).at(currentLocation.x)) { continue; }
+}
-            if (gameBoard.at(currentLocation.y).at(currentLocation.x) == 'X') {
-                foodFound = true;
-            }
-            botPathUnsanitized.push(currentLocation);
-            std::array<sf::Vector2f, 4> localLocations;
-            localLocations.fill(currentLocation);
-            localLocations[0].y += 1;
-            localLocations[1].x += 1;
-            localLocations[2].y -= 1;
-            localLocations[3].x -= 1;
-            for (auto i : localLocations) { 
-                try {
-                    if (gameBoard.at(i.y).at(i.x) == 'X') {
-                        botPathUnsanitized.push(i);
-                        foodFound = true;
-                    }
-                } catch (const std::out_of_range& error) {
-                    continue; // Out of bounds
-                }
-            }
-            for (sf::Vector2f newLocation : localLocations) {
-                try {
-                    if ((!visited.at(newLocation.y).at(newLocation.x))
-                            && (gameBoard.at(newLocation.y).at(newLocation.x) == ' ')) {
-                        search.push(newLocation);
-                    }
-                } catch (const std::out_of_range& error) {
-                    continue; // Out of bounds
-                }
-            }
-            visited.at(currentLocation.y).at(currentLocation.x) = true;
-        }
-    }
 
-    void AISnake::DFS(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries) {
+void AISnake::UpdateProbability(int snakeSize) {
-        std::stack<sf::Vector2f> search;
+    probabilityBFS = 1 - ((double) snakeSize) / 1000;
-        std::vector<std::vector<bool>> visited(boundaries.y, std::vector<bool> (boundaries.x, false));
+    return;
-        bool foodFound = false;
+}
-        search.push(source);
+
-        while (!search.empty()) {
+void AISnake::AdjustProbability(double amount) {
-            sf::Vector2f currentLocation = search.top();
+    probabilityBFS += amount;
-            search.pop();
+    if (probabilityBFS > 1.0)
-            if (foodFound) { break; }
+        probabilityBFS = 1.0;
-            if (visited.at(currentLocation.y).at(currentLocation.x)) { continue; }
+    if (probabilityBFS < 0.0)
-            if (gameBoard.at(currentLocation.y).at(currentLocation.x) == 'X') {
+        probabilityBFS = 0.0;
-                foodFound = true;
+    return;
-            }
+}
-            botPathUnsanitized.push(currentLocation);
+
-            std::array<sf::Vector2f, 4> localLocations;
+void AISnake::AddIteration(const int size) {
-            localLocations.fill(currentLocation);
+    if (size > 40) {
-            localLocations[0].y += 1;
+        UpdateAverage(size);
-            localLocations[1].x += 1;
+        double adjustmentAmount = 0.002;
-            localLocations[2].y -= 1;
+        if (average > size)
-            localLocations[3].x -= 1;
+            AdjustProbability(adjustmentAmount);
-            for (auto i : localLocations) { 
+        else
-                try {
+            AdjustProbability(-adjustmentAmount);
-                    if (gameBoard.at(i.y).at(i.x) == 'X') {
+    }
-                        botPathUnsanitized.push(i);
+    std::cout << "[LOG - AI] Current average: " << average << std::endl;
-                        foodFound = true;
+    std::cout << "[LOG - AI] Previous iteration size: " << size << std::endl;
-                    }
+}
-                } catch (const std::out_of_range& error) {
+
-                    continue; // Out of bounds
+void AISnake::ResetPath(void) {
-                }
+    while (!path.empty())
-            }
+        path.pop();
-            for (sf::Vector2f newLocation : localLocations) {
+}
-                try {
+
-                    if ((!visited.at(newLocation.y).at(newLocation.x))
+// Gets a new path for the bot to follow
-                            && (gameBoard.at(newLocation.y).at(newLocation.x) == ' ')) {
+// Uses DFS algorithm
-                        search.push(newLocation);
+void AISnake::GetNewPath(void) {
-                    }
+    // Search for food
-                } catch (const std::out_of_range& error) {
+    // Probability-based approach for fun
-                    continue; // Out of bounds
+    double roll = ((double) GenerateRandomNumber(RAND_MAX)) / ((double) RAND_MAX);
-                }
+    if (roll <= probabilityBFS)
-            }
+        BFS();
-            visited.at(currentLocation.y).at(currentLocation.x) = true;
+    else
-        }
+        DFS();
+
+    UnvisitBoard();
+
+    if (pathFailed) {
+        pathFailed = false;
+        EmptyPath();
+    } else {
+        TrimPath();
+        if (path.empty())
+            path.push(GetAnyOpenPath());
+    }
+}
+
+void AISnake::BFS(void) {
+    std::queue<sf::Vector2f> search;
+    search.push(g_pEngine->GetHeadLocation());
+    while (!search.empty()) {
+        sf::Vector2f currentLocation = search.front();
+        search.pop();
+        if (g_pEngine->gameBoard.at(currentLocation.y).at(currentLocation.x).m_bVisited)
+            continue;
+        botPathUnsanitized.push(currentLocation);
+        std::array<sf::Vector2f, 4> localLocations;
+        localLocations.fill(currentLocation);
+        localLocations[0].y += 1;
+        localLocations[1].x += 1;
+        localLocations[2].y -= 1;
+        localLocations[3].x -= 1;
+        for (sf::Vector2f nearby : localLocations) {
+            try {
+                GameSpace* space = &g_pEngine->gameBoard.at(nearby.y).at(nearby.x);
+                if (space->m_bFood) {
+                    botPathUnsanitized.push(nearby);
+                    return;
+                }
+                if (nearby.x < 1 || nearby.x > g_pEngine->GetGameBoundaries().x - 2)
+                    continue;
+                if (space->m_bVisited)
+                    continue;
+                if (space->m_bSnake)
+                    continue;
+                search.push(nearby);
+            } catch (const std::out_of_range& error) {
+                continue; // Out of bounds
+            }
+        }
+        g_pEngine->gameBoard.at(currentLocation.y).at(currentLocation.x).m_bVisited = true;
+    }
+    pathFailed = true;
+}
+
+void AISnake::DFS(void) {
+    std::stack<sf::Vector2f> search;
+    search.push(g_pEngine->GetHeadLocation());
+    while (!search.empty()) {
+        sf::Vector2f currentLocation = search.top();
+        search.pop();
+        if (g_pEngine->gameBoard.at(currentLocation.y).at(currentLocation.x).m_bVisited)
+            continue;
+        botPathUnsanitized.push(currentLocation);
+        std::array<sf::Vector2f, 4> localLocations;
+        localLocations.fill(currentLocation);
+        localLocations.at(0).y += 1;
+        localLocations.at(1).x += 1;
+        localLocations.at(2).y -= 1;
+        localLocations.at(3).x -= 1;
+        for (sf::Vector2f nearby : localLocations) {
+            try {
+                GameSpace* space = &g_pEngine->gameBoard.at(nearby.y).at(nearby.x);
+                if (space->m_bFood) {
+                    botPathUnsanitized.push(nearby);
+                    return;
+                }
+                if (nearby.x < 1 || nearby.x > g_pEngine->GetGameBoundaries().x - 2)
+                    continue;
+                if (space->m_bVisited)
+                    continue;
+                if (space->m_bSnake)
+                    continue;
+                search.push(nearby);
+            } catch (const std::out_of_range& error) {
+                continue; // Out of bounds
+            }
+        }
+        g_pEngine->gameBoard.at(currentLocation.y).at(currentLocation.x).m_bVisited = true;
+    }
+    pathFailed = true;
+}
+
+sf::Vector2f AISnake::GetAnyOpenPath(void) {
+    sf::Vector2f bail;
+    std::array<sf::Vector2f, 4> paths;
+    paths.fill(g_pEngine->GetHeadLocation());
+    paths[0].x -= 1;
+    paths[1].x += 1;
+    paths[2].y -= 1;
+    paths[3].y += 1;
+
+    for (auto path : paths) {
+        try {
+            bail = path;
+            if (g_pEngine->gameBoard.at(path.y).at(path.x).m_bSnake)
+                continue;
+            return path;
+        } catch (const std::out_of_range& error) {
+            continue; // Out of bounds
+        }
+    }
+
+    return bail; // Snake is trapped, give up and die
+}
+
+void AISnake::UnvisitBoard(void) {
+    for (std::vector<GameSpace>& i : g_pEngine->gameBoard)
+        for (GameSpace& j : i)
+            j.m_bVisited = false;
+}
+
+void AISnake::UpdateAverage(const int size) {
+    totalLength += size;
+    amountPlayed += 1;
+    average = (double)totalLength / amountPlayed;
+}
+
+void AISnake::TrimPath(void) {
+    bool reachedSnake = false;
+    path.push(botPathUnsanitized.top()); // Push food location
+    while (!botPathUnsanitized.empty()) {
+        if (!reachedSnake) {
+            sf::Vector2f location = botPathUnsanitized.top();
+            if (g_pEngine->gameBoard[location.y][location.x].m_bSnake)
+                reachedSnake = true;
+            sf::Vector2f deltaVector = location - path.top();
+            int delta = abs(deltaVector.x) + abs(deltaVector.y);
+            if (delta == 1)
+                path.push(location);
+        }
+        botPathUnsanitized.pop();
+    }
+}
+
+void AISnake::EmptyPath(void) {
+    while (!botPathUnsanitized.empty())
+        botPathUnsanitized.pop();
+}
+
+// Main method for using AI snake
+PlayerDirection AISnake::CurrentBestDecision(void) {
+    // Reset probabilities
+    probabilityUp = 0.25;
+    probabilityDown = 0.25;
+    probabilityLeft = 0.25;
+    probabilityRight = 0.25;
+
+    // Calculate options
+    CheckLocalFreedom();
+    CheckFoodDirection();
+
+    // Deny impossible movement
+    RemoveImpossibleChoice();
+
+    // Make decision
+    if (probabilityUp > probabilityDown) {
+        if (probabilityUp < probabilityLeft)
+            return kLeft;
+        if (probabilityUp < probabilityRight)
+            return kRight;
+        return kUp;
+    } else {
+        if (probabilityDown < probabilityLeft)
+            return kLeft;
+        if (probabilityDown < probabilityRight)
+            return kRight;
+        return kDown;
+    }
+}
+
+// Improves probability based on amount of local open spaces
+// TODO: Add weights
+void AISnake::CheckLocalFreedom(void) {
+    std::array<sf::Vector2f, 4> choices;
+    std::array<double, 4> chances;
+    chances.fill(0);
+    choices.fill(g_pEngine->GetHeadLocation());
+    choices[0].y += 1;
+    choices[1].x += 1;
+    choices[2].y -= 1;
+    choices[3].x -= 1;
+    for (int i = 0; i < 4; ++i) {
+        try {
+            if (g_pEngine->gameBoard.at(choices[i].y).at(choices[i].x).m_bSnake) {
+                chances[i] = 0;
+                continue;
+            }
+            if (g_pEngine->gameBoard.at(choices[i].y).at(choices[i].x).m_bFood) {
+                chances[0] = 0;
+                chances[1] = 0;
+                chances[2] = 0;
+                chances[3] = 0;
+                chances[i] = 1;
+                break;
+            }
+        } catch (const std::out_of_range& error) {
+            chances[i] = 0;
+            continue;
+        }
+        double openSpaces = 0;
+        for (int j = -1; j < 2; ++j) {
+            for (int k = -1; k < 2; ++k) {
+                try {
+                    if (!g_pEngine->gameBoard.at(choices[i].y + j).at(choices[i].x + k).m_bSnake)
+                        ++openSpaces;
+                } catch (const std::out_of_range& error) {
+                    continue; // Out of bounds
+                }
+            }
+        }
+        chances[i] = openSpaces * 0.11111111111;
+    }
+    probabilityDown *= chances[0] * 4;
+    probabilityRight *= chances[1] * 4;
+    probabilityUp *= chances[2] * 4;
+    probabilityLeft *= chances[3] * 4;
+}
+
+// Improves probability that direction of food is best option
+// TODO: Add weights
+void AISnake::CheckFoodDirection(void) {
+    sf::Vector2f delta = g_pEngine->GetHeadLocation() - g_pEngine->GetFoodLocation();
+    if (delta.x > 0)
+        probabilityLeft *= 1.5;
+    if (delta.x < 0)
+        probabilityRight *= 1.5;
+    if (delta.y > 0)
+        probabilityUp *= 1.5;
+    if (delta.y < 0)
+        probabilityDown *= 1.5;
+}
+
+void AISnake::RemoveImpossibleChoice(void) {
+    if (g_pEngine->GetPlayerSize() == 1)
+        return; // Player can go any direction
+    PlayerDirection currentDirection = g_pEngine->GetCurrentDirection();
+    switch (currentDirection) {
+        case (kUp):
+            probabilityDown = 0;
+            break;
+        case (kDown):
+            probabilityUp = 0;
+            break;
+        case (kLeft):
+            probabilityRight = 0;
+            break;
+        case (kRight):
+            probabilityLeft = 0;
+            break;
+        default:
+            std::cout << "[ERR - AI] Impossibility defaulted somehow??" << std::endl;
+            break;
     }
 }

src/botinterface.hpp

@@ -3,22 +3,46 @@
 
 #include "common.hpp"
 #include <stack>
-#include <vector>
 #include <SFML/System/Vector2.hpp>
 
-namespace snakeplusplus
+class AISnake {
-{
+public:
-    class AISnake {
+    std::stack<sf::Vector2f> path;
-    public:
+    AISnake(void);
-        std::stack<sf::Vector2f> path;
+    void GetNewPath(void);
-        AISnake();
+    PlayerDirection GetInput(void);
-        void GetNewPath(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries, const int snakeSize);
+    void UpdateProbability(int snakeSize);
-        PlayerDirection GetInput(const sf::Vector2f* source);
+    void AdjustProbability(double amount);
-    private:
+    void AddIteration(const int size);
-        std::stack<sf::Vector2f> botPathUnsanitized;
+    void ResetPath(void);
-        void BFS(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries);
+    int amountPlayed = 0;
-        void DFS(const std::vector< std::vector<char> >& gameBoard, const sf::Vector2f& source, const sf::Vector2f& boundaries);
+private:
-    };
+    int totalLength = 0;
-}
+    double average = 0;
+    double probabilityBFS = 0.200;
+    bool pathFailed = false;
+
+    // Generic search algorithms
+    std::stack<sf::Vector2f> botPathUnsanitized;
+    void BFS(void);
+    void DFS(void);
+    sf::Vector2f GetAnyOpenPath(void);
+    void UnvisitBoard(void);
+    void UpdateAverage(const int size);
+    void TrimPath(void);
+    void EmptyPath(void);
+
+    // Unsupervised learning
+    // Make decisions about current state of board
+    double probabilityUp = 0.25;
+    double probabilityDown = 0.25;
+    double probabilityLeft = 0.25;
+    double probabilityRight = 0.25;
+    PlayerDirection CurrentBestDecision(void);
+    void CheckLocalFreedom(void);
+    void CheckFoodDirection(void);
+    void RemoveImpossibleChoice(void);
+    
+};
 
 #endif 

src/common.cpp

@@ -2,20 +2,26 @@
 #include <random>
 #include "common.hpp"
 
-namespace snakeplusplus
+std::default_random_engine generator;
-{
-    std::default_random_engine generator;
-    void InitializeGenerator(void)
-    {
-        generator.seed(std::random_device{}());
-    }
 
-    // Returns a newly generated number
+void InitializeGenerator(void) {
-    int GenerateRandomNumber(int generationLimit)
+    generator.seed(std::random_device{}());
-    {
+}
-        int generatedNumber;
+
-        std::uniform_int_distribution<> distribution(0, generationLimit - 1);
+// Returns a newly generated number
-        generatedNumber = distribution(snakeplusplus::generator);
+int GenerateRandomNumber(int generationLimit) {
-        return generatedNumber;
+    int generatedNumber;
-    }
+    std::uniform_int_distribution<> distribution(0, generationLimit - 1);
+    generatedNumber = distribution(generator);
+    return generatedNumber;
+}
+
+GameSpace::GameSpace(void) {
+    Reset();
+}
+
+void GameSpace::Reset(void) {
+    m_bFood = 0;
+    m_bSnake = 0;
+    m_bVisited = 0;
 }

src/common.hpp

@@ -1,20 +1,28 @@
-#ifndef COMMON_HPP
+#ifndef COMMON_HPP
-#define COMMON_HPP
+#define COMMON_HPP
-
+
-namespace snakeplusplus
+void InitializeGenerator(void);
-{
+int GenerateRandomNumber(int generationLimit);
-    void InitializeGenerator(void);
+
-    int GenerateRandomNumber(int generationLimit);
+enum PlayerDirection {
-
+    kNone = 0,
-    enum PlayerDirection
+    kLeft = 1,
-    {
+    kUp = 2,
-        kNone = 0,
+    kDown = 3,
-        kLeft = 1,
+    kRight = 4
-        kUp = 2,
+};
-        kDown = 3,
+
-        kRight = 4
+struct GameSpace {
-    };
+    GameSpace(void);
-
+    unsigned char m_bFood : 1 = 0;
-}
+    unsigned char m_bSnake : 1 = 0;
-
+    unsigned char m_bVisited : 1 = 0; // Used for BFS/DFS
-#endif
+    unsigned char _3 : 1 = 0;
+    unsigned char _4 : 1 = 0;
+    unsigned char _5 : 1 = 0;
+    unsigned char _6 : 1 = 0;
+    unsigned char _7 : 1 = 0;
+    void Reset(void);
+};
+
+#endif

src/gamestate.cpp

@@ -6,150 +6,177 @@
 #include "playerinterface.hpp"
 #include "gamestate.hpp"
 
-namespace snakeplusplus
+GameEngine::GameEngine(void) {
-{
+    InitializeGenerator();
-    GameEngine::GameEngine()
+}
-    {
-        InitializeGenerator();
-        return;
-    }
 
-    void GameEngine::Start()
+void GameEngine::Start(void) {
-    {
+    PrepareGameBoard();
-        PrepareGameBoard();
+    if (!state.m_bNoDisplay)
         graphics.StartGameWindow();
-        Loop();
+    Loop();
+}
+
+void GameEngine::Reset(void) {
+    if (!state.m_bIsBotControlled)
+        graphics.CheckContinue();
+    else
+        bot.AddIteration(player.body.size());
+    player.Reset();
+    PrepareGameBoard();
+    state.m_bIsGameOver = false;
+    if (!state.m_bIsBotControlled)
         return;
+    if (!state.m_bSmart) {
+        while (!bot.path.empty())
+            bot.path.pop();
     }
+    if (state.m_bNoDisplay)
+        graphics.SetShowGame(false);
+    if (state.m_bSkipIterations)
+        graphics.SetShowGame((bot.amountPlayed + 1) % 50 == 0);
+    // TODO: Replace with value to force this effect
+    graphics.SetShowGame(true);
+}
 
-    void GameEngine::Reset()
+void GameEngine::Loop(void) {
-    {
+    int currentScore = 0;
-        graphics.CheckContinue(isBotControlled);
+    while (graphics.IsOpen() || state.m_bNoDisplay) {
-        player.Reset();
+        if (state.m_bIsGameOver)
-        if (isBotControlled) { 
+            Reset();
-            while (!bot.path.empty()) { bot.path.pop(); }
+        UpdatePlayerSpeed();
-        }
+        PlaceNewSnakePart(MovePlayer());
-        PrepareGameBoard();
+        RegenerateFood();
-        isGameOver = false;
+        currentScore = player.body.size() * 100;
-        return;
+        if (!state.m_bNoDisplay)
-    }
+            graphics.DisplayGameState(gameBoard, currentScore);
-
-    void GameEngine::Loop(void)
-    {
-        while (graphics.IsOpen())
-        {
-            if (isGameOver) { Reset(); }
-            UpdatePlayerSpeed();
-            PlaceNewSnakePart(MovePlayer());
-            RegenerateFood();
-            graphics.DisplayGameState(gameBoard);
-        }
-        return;
-    }
-
-    sf::Vector2f GameEngine::MovePlayer(void)
-    {
-        sf::Vector2f newHeadPosition;
-        newHeadPosition.x = player.headLocation.x + player.speed.x;
-        newHeadPosition.y = player.headLocation.y + player.speed.y;
-        return newHeadPosition;
-    }
-
-    sf::Vector2f GameEngine::GetGameBoundaries(void)
-    {
-        return graphics.gameBoundaries;
-    }
-
-    void GameEngine::PlaceNewSnakePart(sf::Vector2f location)
-    {
-        if (!player.speed.x && !player.speed.y) { return; }
-        try 
-        {
-            char* locationState;
-            locationState = &gameBoard.at(location.y).at(location.x);
-            if (*locationState == 'O' && (player.body.size() > 1))
-                isGameOver = true; // Game should end (Snake touching snake)
-            *locationState = 'O';
-            player.body.push(locationState);
-            player.headLocation = location;
-            if (playerFood.location != location)
-                player.Pop();
-        } catch (const std::out_of_range& error) {
-            isGameOver = true; // Snake ran into edge
-        }
-        return;
-    }
-
-    // Generates new food until not colliding with player
-    void GameEngine::RegenerateFood(void)
-    {
-        sf::Vector2f newLocation = playerFood.location;
-        bool isUpdated = false;
-        while (gameBoard.at(newLocation.y).at(newLocation.x) == 'O')
-        {
-            isUpdated = true;
-            playerFood.GenerateNewFood(GetGameBoundaries());
-            newLocation = playerFood.location;
-        }
-        if (isUpdated) { 
-            gameBoard.at(newLocation.y).at(newLocation.x) = 'X';
-        }
-        return;
-    }
-
-    void GameEngine::PrepareGameBoard(void)
-    {
-        gameBoard.clear();
-        sf::Vector2f boardDimensions = GetGameBoundaries();
-        gameBoard.resize(boardDimensions.y, std::vector<char> (boardDimensions.x, ' '));
-        // Snake setup
-        player.headLocation.x = GenerateRandomNumber(boardDimensions.x);
-        player.headLocation.y = GenerateRandomNumber(boardDimensions.y);
-        {
-            char* locationState = &gameBoard.at(player.headLocation.y).at(player.headLocation.x);
-            player.body.push(locationState);
-            *locationState = 'O';
-        }
-        // Food setup
-        playerFood.GenerateNewFood(boardDimensions);
-        gameBoard.at(playerFood.location.y).at(playerFood.location.x) = 'X';
-        return;
-    }
-
-    void GameEngine::UpdatePlayerSpeed(void)
-    {
-        PlayerDirection controller;
-        if (isBotControlled) { 
-            if (bot.path.empty()) { 
-                bot.GetNewPath(gameBoard, player.headLocation, GetGameBoundaries(), player.body.size()); 
-            }
-            controller = bot.GetInput(&player.headLocation); 
-        }
-        else { controller = GetPlayerInput(); }
-        switch (controller) { 
-            case kUp:
-                if (player.speed.y == kUnitSpeed) { break; }
-                player.speed.x = 0;
-                player.speed.y = -kUnitSpeed;
-                break;
-            case kLeft:
-                if (player.speed.x == kUnitSpeed) { break; }
-                player.speed.x = -kUnitSpeed;
-                player.speed.y = 0;
-                break;
-            case kRight:
-                if (player.speed.x == -kUnitSpeed) { break; }
-                player.speed.x = kUnitSpeed;
-                player.speed.y = 0;
-                break;
-            case kDown:
-                if (player.speed.y == -kUnitSpeed) { break; }
-                player.speed.x = 0;
-                player.speed.y = kUnitSpeed;
-                break;
-            default:
-                break;
-        }
-        return;
     }
 }
+
+sf::Vector2f GameEngine::MovePlayer(void) {
+    return sf::Vector2f(player.headLocation.x + player.speed.x, player.headLocation.y + player.speed.y);
+}
+
+
+sf::Vector2f GameEngine::GetGameBoundaries(void) {
+    return graphics.gameBoundaries;
+}
+
+PlayerDirection GameEngine::GetCurrentDirection(void) {
+    if (player.speed.x) {
+        if (player.speed.x > 0)
+            return kRight;
+        else
+            return kLeft;
+    } else {
+        if (player.speed.y > 0)
+            return kDown;
+        else
+            return kUp;
+    }
+}
+
+int GameEngine::GetPlayerSize(void) {
+    return player.body.size();
+}
+
+sf::Vector2f GameEngine::GetHeadLocation(void) {
+    return player.headLocation;
+}
+
+sf::Vector2f GameEngine::GetFoodLocation(void) {
+    return playerFood.location;
+}
+
+void GameEngine::PlaceNewSnakePart(sf::Vector2f location) {
+    if (!player.speed.x && !player.speed.y)
+        return;
+    try {
+        GameSpace* locationState = &gameBoard.at(location.y).at(location.x);
+        if (locationState->m_bSnake && (player.body.size() > 1))
+            state.m_bIsGameOver = true; // Game should end (Snake touching snake)
+        locationState->m_bSnake = true;
+        player.body.push(locationState);
+        player.headLocation = location;
+        if (playerFood.location != location)
+            player.Pop();
+        else {
+            locationState->m_bFood = false;
+            if (state.m_bIsBotControlled)
+                bot.ResetPath();
+        }
+    } catch (const std::out_of_range& error) {
+        state.m_bIsGameOver = true; // Snake ran into edge
+    }
+}
+
+
+// Generates new food until not colliding with player
+void GameEngine::RegenerateFood(void) {
+    // Generate a new food location if the current one is occupied
+    while (gameBoard.at(playerFood.location.y).at(playerFood.location.x).m_bSnake)
+        playerFood.GenerateNewFood(GetGameBoundaries());
+
+    // Update the game board with the new food location
+    gameBoard.at(playerFood.location.y).at(playerFood.location.x).m_bFood = 1;
+}
+
+
+void GameEngine::PrepareGameBoard(void) {
+    // Create empty game board
+    gameBoard.clear();
+    sf::Vector2f boardDimensions = GetGameBoundaries();
+    gameBoard.resize(boardDimensions.y, std::vector<GameSpace>(boardDimensions.x));
+
+    // Snake setup
+    player.headLocation.x = GenerateRandomNumber(boardDimensions.x);
+    player.headLocation.y = GenerateRandomNumber(boardDimensions.y);
+    GameSpace* locationState = &gameBoard.at(player.headLocation.y).at(player.headLocation.x);
+    player.body.push(locationState);
+    locationState->m_bSnake = true;
+
+    // Food setup
+    playerFood.GenerateNewFood(boardDimensions);
+    gameBoard.at(playerFood.location.y).at(playerFood.location.x).m_bFood = true;
+    return;
+}
+
+void GameEngine::UpdatePlayerSpeed(void) {
+    PlayerDirection controller;
+    if (state.m_bIsBotControlled) { 
+        if (bot.path.empty())
+            bot.GetNewPath(); 
+        controller = bot.GetInput();
+    } else
+        controller = GetPlayerInput();
+
+    switch (controller) { 
+        case kUp:
+            if (player.speed.y == kUnitSpeed)
+                break;
+            player.speed.x = 0;
+            player.speed.y = -kUnitSpeed;
+            break;
+        case kLeft:
+            if (player.speed.x == kUnitSpeed)
+                break;
+            player.speed.x = -kUnitSpeed;
+            player.speed.y = 0;
+            break;
+        case kRight:
+            if (player.speed.x == -kUnitSpeed)
+                break;
+            player.speed.x = kUnitSpeed;
+            player.speed.y = 0;
+            break;
+        case kDown:
+            if (player.speed.y == -kUnitSpeed)
+                break;
+            player.speed.x = 0;
+            player.speed.y = kUnitSpeed;
+            break;
+        default:
+            break;
+    }
+    return;
+}

src/gamestate.hpp

@@ -3,37 +3,48 @@
 #define GAMESTATE_HPP
 
 #include <SFML/Graphics.hpp>
+#include <memory>
 #include "botinterface.hpp"
+#include "common.hpp"
 #include "snake.hpp"
 #include "playerinterface.hpp"
 
-namespace snakeplusplus
+const int kUnitSpeed = 1;
-{
-    const int kUnitSpeed = 1;
 
-    class GameEngine
+class GameEngine {
-    {
+public:
-    public:
+    GameEngine(void);
-        GameEngine();
+    void Start(void);
-        void Start(void);
+    void Reset(void);
-        void Reset(void);
+    sf::Vector2f GetGameBoundaries(void);
-        sf::Vector2f GetGameBoundaries(void);
+    struct GameState {
-    private:
+        unsigned char m_bIsGameOver : 1 = 0;
-        std::vector< std::vector<char> > gameBoard;
+        unsigned char m_bIsBotControlled : 1 = 0;
-        PlayerOutput graphics;
+        unsigned char m_bNoDisplay : 1 = 0;
-        Snake player;
+        unsigned char m_bSmart : 1 = 0;
-        Food playerFood;
+        unsigned char m_bSkipIterations : 1 = 0;
-        AISnake bot;
+        unsigned char _5 : 1 = 0;
-        bool isGameOver = 0;
+        unsigned char _6 : 1 = 0;
-        bool isBotControlled = 1;
+        unsigned char _7 : 1 = 0;
-        void DisplayEndScreen(void);
+    } state;
-        void Loop(void);
+    std::vector< std::vector<GameSpace> > gameBoard;
-        sf::Vector2f MovePlayer(void);
+    PlayerDirection GetCurrentDirection(void);
-        void PlaceNewSnakePart(sf::Vector2f location);
+    int GetPlayerSize(void);
-        void RegenerateFood(void);
+    sf::Vector2f GetHeadLocation(void);
-        void PrepareGameBoard(void);
+    sf::Vector2f GetFoodLocation(void);
-        void UpdatePlayerSpeed();
+private:
-    };
+    PlayerOutput graphics;
-}
+    Snake player;
+    Food playerFood;
+    AISnake bot;
+    void Loop(void);
+    sf::Vector2f MovePlayer(void);
+    void PlaceNewSnakePart(sf::Vector2f location);
+    void RegenerateFood(void);
+    void PrepareGameBoard(void);
+    void UpdatePlayerSpeed(void);
+};
+
+inline std::unique_ptr<GameEngine> g_pEngine;
 
 #endif

src/main.cpp

@@ -1,8 +1,48 @@
-#include "gamestate.hpp"
+#include "gamestate.hpp"
-
+#include <memory>
-int main(void)
+#include <string>
-{
+#include <vector>
-    snakeplusplus::GameEngine game;
+#include <iostream>
-    game.Start();
+
-    return 0;
+void Help(void) {
-}
+    std::cout << "Usage: snakeplusplus [OPTIONS]" << std::endl;
+    std::cout << "Options:" << std::endl;
+    std::cout << "\t--server\tRun snake in server mode (also sets --bot)" << std::endl;
+    std::cout << "\t--auto\t\tControl snake using a bot or AI" << std::endl;
+    std::cout << "\t-h, --help\tPrint this help message and exit" << std::endl;
+    std::cout << std::endl;
+    std::cout << "Autoplay options (requires --auto):" << std::endl;
+    std::cout << "\t--dumb\t\tPlays using basic search algorithms BFS and DFS" << std::endl;
+    std::cout << "\t--smart\t\tTrains an algorithm using unsupervised learning" << std::endl;
+    std::cout << std::endl;
+}
+
+int main(int argc, char* argv[]) {
+    std::vector<std::string> args(argv, argv + argc);
+    g_pEngine = std::make_unique<GameEngine>();
+    for (int i = 1; i < args.size(); ++i) {
+        if (args[i].compare("--server") == 0) {
+            g_pEngine->state.m_bNoDisplay = true;
+            g_pEngine->state.m_bIsBotControlled = true;
+            std::cout << "[LOG - Main] Disabling display" << std::endl;
+        } else if (args[i].compare("--auto") == 0) {
+            g_pEngine->state.m_bIsBotControlled = true;
+            std::cout << "[LOG - Main] Bot control enabled" << std::endl;
+        } else if (args[i].compare("--smart") == 0) {
+            g_pEngine->state.m_bSmart = true;
+            std::cout << "[LOG - Main] Using AI" << std::endl;
+        } else if (args[i].compare("--skip") == 0) {
+            g_pEngine->state.m_bSkipIterations = true;
+            std::cout << "[LOG - Main] Only showing every 50 epochs" << std::endl;
+        } else if (args[i].compare("-h") == 0 || args[i].compare("--help") == 0) {
+            Help();
+            return 0;
+        } else {
+            std::cout << "[LOG - Main] Argument `" << args[i] << "` unrecognized, printing help and exiting..."<< std::endl;
+            Help();
+            return 1;
+        }
+    }
+    g_pEngine->Start();
+    return 0;
+}

src/playerinterface.cpp

@@ -2,144 +2,146 @@
 #include <SFML/System/Vector2.hpp>
 #include <SFML/Window/Keyboard.hpp>
 
-namespace snakeplusplus 
+PlayerDirection GetPlayerInput(void) {
-{
+    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left) ||
-    PlayerDirection GetPlayerInput(void)
+            (sf::Keyboard::isKeyPressed(sf::Keyboard::A)))
-    {
+        return kLeft;
-        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Left) 
+    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up) ||
-                || sf::Keyboard::isKeyPressed(sf::Keyboard::A))
+            (sf::Keyboard::isKeyPressed(sf::Keyboard::W)))
-            return kLeft;
+        return kUp;
-        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Up)
+    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Down) ||
-                || sf::Keyboard::isKeyPressed(sf::Keyboard::W))
+            (sf::Keyboard::isKeyPressed(sf::Keyboard::S)))
-            return kUp;
+        return kDown;
-        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Down)
+    if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right) ||
-                || sf::Keyboard::isKeyPressed(sf::Keyboard::S))
+            (sf::Keyboard::isKeyPressed(sf::Keyboard::D)))
-            return kDown;
+        return kRight;
-        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Right)
+    return kNone;
-                || sf::Keyboard::isKeyPressed(sf::Keyboard::D))
+}
-            return kRight;
-        return kNone;
-    }
 
-    bool PlayerOutput::IsOpen(void)
+bool PlayerOutput::IsOpen(void) {
-    {
+    return isWindowAlive;
-        return gameWindow.isOpen();
+}
-    }
 
-    PlayerOutput::PlayerOutput(void)
+PlayerOutput::PlayerOutput(void) {
-    {
+    float kWidth = 1025;
-        float kWidth = 1025;
+    float kHeight = 725;
-        float kHeight = 725;
+    float kBoardWidth = kWidth / kGridSize;
-        float kBoardWidth = kWidth / kGridSize;
+    float kBoardHeight = kHeight / kGridSize;
-        float kBoardHeight = kHeight / kGridSize;
+    gameBoundaries = sf::Vector2f(kBoardWidth, kBoardHeight); 
-        gameBoundaries = sf::Vector2f(kBoardWidth, kBoardHeight); 
+    gameVideoSettings = sf::VideoMode(kWidth, kHeight);
-        gameVideoSettings = sf::VideoMode(kWidth, kHeight);
+    drawObject.setSize(sf::Vector2f(kGridSize, kGridSize));
-        drawObject.setSize(sf::Vector2f(kGridSize, kGridSize));
+    return;
-        return;
+}
-    }
 
-    void PlayerOutput::CheckContinue(bool isBotControlled)
+void PlayerOutput::CheckContinue(void) {
-    {
+    DisplayEndScreen();
-        if (isBotControlled) { return; }
+    while (true) {
-        DisplayEndScreen();
+        gameWindow.pollEvent(event);
-        while (true)
+        if ((event.type == sf::Event::Closed) ||
-        {
+                (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape))) {
-            gameWindow.pollEvent(event);
+            gameWindow.close();
-            if ((event.type == sf::Event::Closed)
+            isWindowAlive = false;
-                    || (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)))
+            return;
-            {
-                gameWindow.close();
-                return;
-            }
-            if (sf::Keyboard::isKeyPressed(sf::Keyboard::Enter)) { return; }
-            sf::sleep(delay);
         }
-    }
+        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Enter))
-
+            return;
-    void PlayerOutput::DisplayEndScreen(void)
-    {
-        gameWindow.clear();
-        sf::Vector2f textPosition(gameBoundaries);
-        textPosition.x = textPosition.x / 2;
-        textPosition.y = textPosition.y / 2;
-        sf::Font font;
-        font.loadFromFile("Arial.ttf");
-        sf::Text gameOverText("Game Over\nPress 'Enter' to play again", font);
-        gameOverText.setPosition(textPosition);
-        gameWindow.draw(gameOverText);
-        gameWindow.display();
-        return;
-    }
-
-    void PlayerOutput::DisplayGameState(std::vector< std::vector<char> >& gameBoard)
-    {
-        CheckWindowEvents();
-        char* letterOnBoard;
-        for (float y = 0; y < gameBoundaries.y; y++)
-        {
-            for (float x = 0; x < gameBoundaries.x; x++)
-            {
-                letterOnBoard = &gameBoard.at(y).at(x);
-                switch (*letterOnBoard)
-                {
-                    case 'O':
-                        DrawSnake(sf::Vector2f(x, y));
-                        break;
-                    case 'X':
-                        DrawFood(sf::Vector2f(x,y));
-                        break;
-                    default:
-                        DrawEmpty(sf::Vector2f(x,y));
-                        break;
-                }
-            }
-        }
-        gameWindow.display();
         sf::sleep(delay);
-        return;
-    }
-
-    void PlayerOutput::StartGameWindow(void)
-    {
-        gameWindow.create(gameVideoSettings, "SnakePlusPlus");
-        isWindowAlive = true;
-        return;
-    }
-
-    void PlayerOutput::CheckWindowEvents(void)
-    {
-        while (gameWindow.pollEvent(event))
-        {
-            if ((event.type == sf::Event::Closed)
-                    || (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)))
-                gameWindow.close();
-        }
-    }
-
-    void PlayerOutput::DrawEmpty(sf::Vector2f location)
-    {
-        location *= static_cast<float>(kGridSize);
-        drawObject.setPosition(location);
-        drawObject.setFillColor(sf::Color::Black);
-        gameWindow.draw(drawObject);
-        return;
-    }
-
-    void PlayerOutput::DrawFood(sf::Vector2f location)
-    {
-        location *= static_cast<float>(kGridSize);
-        drawObject.setPosition(location);
-        drawObject.setFillColor(sf::Color::Red);
-        gameWindow.draw(drawObject);
-        return;
-    }
-
-    void PlayerOutput::DrawSnake(sf::Vector2f location)
-    {
-        location *= static_cast<float>(kGridSize);
-        drawObject.setPosition(location);
-        drawObject.setFillColor(sf::Color::Green);
-        gameWindow.draw(drawObject);
-        return;
     }
 }
+
+void PlayerOutput::DisplayEndScreen(void) {
+    gameWindow.clear();
+    sf::Vector2f textPosition(gameBoundaries);
+    textPosition.x = textPosition.x / 2;
+    textPosition.y = textPosition.y / 2;
+    sf::Font font;
+    font.loadFromFile("Arial.ttf");
+    sf::Text gameOverText("Game Over\nPress 'Enter' to play again", font);
+    gameOverText.setPosition(textPosition);
+    gameWindow.draw(gameOverText);
+    gameWindow.display();
+    return;
+}
+
+void PlayerOutput::DisplayScore(int score) {
+    sf::Vector2f textPosition(gameBoundaries);
+    textPosition.x = textPosition.x / 2;
+    textPosition.y = textPosition.y / 2;
+    sf::Font font;
+    font.loadFromFile("Arial.ttf");
+    std::string text = "Score: " + std::to_string(score);
+    sf::Text ScoreText(text, font);
+    ScoreText.setPosition(textPosition);
+    gameWindow.draw(ScoreText);
+}
+
+void PlayerOutput::DisplayGameState(std::vector< std::vector<GameSpace> >& gameBoard, int score) {
+    CheckWindowEvents();
+    if (delay == sf::milliseconds(0)) { return; }
+    char* letterOnBoard;
+    for (float y = 0; y < gameBoundaries.y; y++) {
+        for (float x = 0; x < gameBoundaries.x; x++) {
+            if (gameBoard.at(y).at(x).m_bSnake)
+                DrawSnake(sf::Vector2f(x, y));
+            else if (gameBoard.at(y).at(x).m_bFood)
+                DrawFood(sf::Vector2f(x,y));
+            else
+                DrawEmpty(sf::Vector2f(x,y));
+        }
+    }
+    DisplayScore(score);
+    gameWindow.display();
+    sf::sleep(delay);
+    return;
+}
+
+void PlayerOutput::StartGameWindow(void) {
+    gameWindow.create(gameVideoSettings, "SnakePlusPlus");
+    isWindowAlive = true;
+}
+
+void PlayerOutput::SetShowGame(bool isShowing) {
+    if (isShowing)
+        delay = sf::milliseconds(5);
+    else
+        delay = sf::milliseconds(0);
+}
+
+void PlayerOutput::CheckWindowEvents(void) {
+    while (gameWindow.pollEvent(event)) {
+        if ((event.type == sf::Event::Closed) || 
+                (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape))) {
+            gameWindow.close();
+            isWindowAlive = false;
+        }
+        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Equal)) { 
+            if (delay > sf::milliseconds(16)) { continue; }
+            delay += sf::milliseconds(1);
+        }
+        if (sf::Keyboard::isKeyPressed(sf::Keyboard::Hyphen)) { 
+            if (delay == sf::milliseconds(0)) { continue; }
+            delay -= sf::milliseconds(1);
+        }
+    }
+}
+
+void PlayerOutput::DrawEmpty(sf::Vector2f location) {
+    location *= static_cast<float>(kGridSize);
+    drawObject.setPosition(location);
+    drawObject.setFillColor(sf::Color::Black);
+    gameWindow.draw(drawObject);
+}
+
+void PlayerOutput::DrawFood(sf::Vector2f location) {
+    location *= static_cast<float>(kGridSize);
+    drawObject.setPosition(location);
+    drawObject.setFillColor(sf::Color::Red);
+    gameWindow.draw(drawObject);
+}
+
+void PlayerOutput::DrawSnake(sf::Vector2f location) {
+    location *= static_cast<float>(kGridSize);
+    drawObject.setPosition(location);
+    drawObject.setFillColor(sf::Color::Green);
+    gameWindow.draw(drawObject);
+}

src/playerinterface.hpp

@@ -6,32 +6,30 @@
 
 const int kGridSize = 25;
 
-namespace snakeplusplus
+PlayerDirection GetPlayerInput(void);
-{
-    PlayerDirection GetPlayerInput(void);
 
-    class PlayerOutput 
+class PlayerOutput {
-    {
+public:
-    public:
+    sf::Vector2f gameBoundaries;
-        sf::Vector2f gameBoundaries;
+    PlayerOutput(void);
-        PlayerOutput(void);
+    bool IsOpen(void);
-        bool IsOpen(void);
+    void CheckContinue(void);
-        void CheckContinue(bool isBotControlled);
+    void DisplayGameState(std::vector< std::vector<GameSpace> >& gameBoard, int score);
-        void DisplayGameState(std::vector< std::vector<char> >& gameBoard);
+    void DisplayScore(int score);
-        void StartGameWindow(void);
+    void StartGameWindow(void);
-    private:
+    void SetShowGame(bool isShowing);
-        void CheckWindowEvents(void);
+private:
-        void DisplayEndScreen(void);
+    void CheckWindowEvents(void);
-        void DrawEmpty(sf::Vector2f location);
+    void DisplayEndScreen(void);
-        void DrawFood(sf::Vector2f location);
+    void DrawEmpty(sf::Vector2f location);
-        void DrawSnake(sf::Vector2f location);
+    void DrawFood(sf::Vector2f location);
-        sf::RenderWindow gameWindow;
+    void DrawSnake(sf::Vector2f location);
-        sf::VideoMode gameVideoSettings;
+    sf::RenderWindow gameWindow;
-        sf::RectangleShape drawObject;
+    sf::VideoMode gameVideoSettings;
-        sf::Event event;
+    sf::RectangleShape drawObject;
-        bool isWindowAlive;
+    sf::Event event;
-        sf::Time delay = sf::milliseconds(15);
+    bool isWindowAlive = false;
-    };
+    sf::Time delay = sf::milliseconds(12);
-}
+};
 
 #endif

src/snake.cpp

@@ -3,29 +3,24 @@
 #include <SFML/Graphics.hpp>
 #include "common.hpp"
 #include "snake.hpp"
-
+ 
-namespace snakeplusplus
+void Snake::Pop(void) {
-{
+    body.front()->m_bSnake = false;
-    void Snake::Pop(void)
+    body.pop();
-    {
+    return;
-        *(body.front()) = ' ';
+}
-        body.pop();
+
-        return;
+void Snake::Reset(void) {
-    }
+    while (!body.empty())
-
+        Pop();
-    void Snake::Reset(void)
+    speed.x = 0;
-    {
+    speed.y = 0;
-        while (!body.empty()) Pop();
+    return;
-        speed.x = 0;
+}
-        speed.y = 0;
+
-        return;
+// Returns a new food object for the snakeFood
-    }
+void Food::GenerateNewFood(sf::Vector2f boundaries) {
-
+    location.x = GenerateRandomNumber(boundaries.x);
-    // Returns a new food object for the snakeFood
+    location.y = GenerateRandomNumber(boundaries.y);
-    void Food::GenerateNewFood(sf::Vector2f boundaries)
+    return;
-    {
-        location.x = GenerateRandomNumber(boundaries.x);
-        location.y = GenerateRandomNumber(boundaries.y);
-        return;
-    }
 }

src/snake.hpp

@@ -4,26 +4,21 @@
 
 #include <SFML/System/Vector2.hpp>
 #include <queue>
+#include "common.hpp"
 
-namespace snakeplusplus
+struct Snake {
-{
+public:
-    struct Snake
+    sf::Vector2f headLocation;
-    {
+    sf::Vector2f speed;
-    public:
+    std::queue<GameSpace*> body;
-        sf::Vector2f headLocation;
+    void Pop(void);
-        sf::Vector2f speed;
+    void Reset(void);
-        std::queue<char*> body;
+};
-        void Pop(void);
-        void Reset(void);
-    };
 
-    struct Food
+struct Food {
-    {
+public:
-    public:
+    sf::Vector2f location;
-        sf::Vector2f location;
+    void GenerateNewFood(sf::Vector2f boundaries);
-        char* food;
+};
-        void GenerateNewFood(sf::Vector2f boundaries);
-    };
-}
 
 #endif