Copy over pacman game

01_foundation/CMakeLists.txt

@@ -1 +0,0 @@
-add_executable(01_main main.cpp)

01_foundation/main.cpp

@@ -1,4 +0,0 @@
-#include <iostream>
-int main() {
-  std::cout << "Hello World\n";
-}

02_foundation/CMakeLists.txt

@@ -1 +0,0 @@
-add_executable(02_main main.cpp)

02_foundation/main.cpp

@@ -1,4 +0,0 @@
-#include <iostream>
-int main() {
-  std::cout << "Hello World\n";
-}

11_intermediate/CMakeLists.txt

@@ -1 +0,0 @@
-add_executable(11_main main.cpp)

11_intermediate/main.cpp

@@ -1,4 +0,0 @@
-#include <iostream>
-int main() {
-  std::cout << "Hello World\n";
-}

CMakeLists.txt

@@ -1,16 +1,14 @@
-if (NOT APPLE AND NOT WIN32)
-    set(CMAKE_TOOLCHAIN_FILE toolchains/linux_clang_11.cmake)
-endif ()
-
-cmake_minimum_required(VERSION 3.10)
-project(modern_cpp C CXX)
+cmake_minimum_required(VERSION 3.17)
+project(pacman)
 
 set(CMAKE_CXX_STANDARD 20)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CMAKE_CXX_EXTENSIONS NO)
 
-include_directories(include)
+# Download automatically, you can also just copy the conan.cmake file
+if (NOT EXISTS "${CMAKE_BINARY_DIR}/conan.cmake")
+    message(STATUS "Downloading conan.cmake from https://github.com/conan-io/cmake-conan")
+    file(DOWNLOAD "https://github.com/conan-io/cmake-conan/raw/v0.15/conan.cmake"
+            "${CMAKE_BINARY_DIR}/conan.cmake")
+endif ()
 
-add_subdirectory(01_foundation)
-add_subdirectory(02_foundation)
-add_subdirectory(11_intermediate)
+set(CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR}/src)
+add_subdirectory(src)

README.md

@@ -1,2 +1,43 @@
-# modern_cpp_exercises
-Exercises for the TurtleSec training "Mod(C++)" - Foundation and Intermediate
+# Mod(C++) - Pac-Man Exercise
+
+## Ghosts
+This will probably become relevant https://en.wikipedia.org/wiki/Ghosts_(Pac-Man)
+This as well https://youtu.be/ataGotQ7ir8
+https://gameinternals.com/understanding-pac-man-ghost-behavior
+https://www.gamasutra.com/view/feature/3938/the_pacman_dossier.php?print=1
+
+## Windows Toolchain
+
+Visual Studio Community 2019 - latest (MSVC 19.28.29334.0)
+
+## Get Clion
+
+https://www.jetbrains.com/clion/download/download-thanks.html
+
+## Get Python 3
+
+https://docs.python.org/3/using/windows.html#the-full-installer
+
+## Get Conan
+
+pip3 install conan --upgrade
+
+## Conan on Linux
+
+Set this environment variable and Conan will tell you which packages you need to
+intall on Linux.
+CONAN_SYSREQUIRES_MODE=verify
+
+In case of link errors around sndio, try to uninstall this package and rebuild the conan cache:
+~~~
+sudo apt remove libsndio-dev*
+~~~
+https://bugzilla.libsdl.org/show_bug.cgi?id=5105
+
+## Currently does not work on windows - Get Clang
+
+Clang 10 works seamlessly with Conan (version 1.31.4) - with 11 you have to update your 
+<userhome>/.conan/settings.yml file, add "11" to the list at "clang: version:"
+
+https://releases.llvm.org/download.html
+https://www.jetbrains.com/help/clion/quick-tutorial-on-configuring-clion-on-windows.html#clang-cl

conanfile.py

@@ -0,0 +1,19 @@
+from conans import ConanFile, CMake
+
+class ConanDependencies(ConanFile):
+
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "cmake", "cmake_find_package"
+    default_options = {
+        "sdl2_image:jpg": "libjpeg"
+    }
+
+    def requirements(self):
+        self.requires("sdl2/2.0.9@bincrafters/stable")
+        self.requires("sdl2_image/2.0.4@bincrafters/stable")
+
+    def imports(self):
+        self.copy("*.dll", dst="bin", src="bin")
+        self.copy("*.dylib*", dst="bin", src="lib")
+        self.copy('*.so*', dst='lib', src='lib')
+        self.copy("license*", dst="licenses", folder=True, ignore_case=True)

src/Board.cpp

@@ -0,0 +1,103 @@
+#include "Board.h"
+
+// Legend
+// 0 - wall
+// 1 - pellet
+// 2 - nothing
+// 3 - door
+// 4 - superpower
+
+// 16 pixels per square
+// Maze in pixels - width: 448 - height - 496
+
+static const uint8_t board[ROWS][COLUMNS] = {
+// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7
+  {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // 0
+  {0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0}, // 1
+  {0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,1,0}, // 2
+  {0,4,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,4,0}, // 3
+  {0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,1,0}, // 4
+  {0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0}, // 5
+  {0,1,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0}, // 6
+  {0,1,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0}, // 7
+  {0,1,1,1,1,1,1,0,0,1,1,1,1,0,0,1,1,1,1,0,0,1,1,1,1,1,1,0}, // 8
+  {0,0,0,0,0,0,1,0,0,0,0,0,2,0,0,2,0,0,0,0,0,1,0,0,0,0,0,0}, // 9
+  {0,0,0,0,0,0,1,0,0,0,0,0,2,0,0,2,0,0,0,0,0,1,0,0,0,0,0,0}, // 10
+  {0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0}, // 11
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,3,3,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 12
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 13
+  {3,2,2,2,2,2,1,2,2,2,0,0,0,0,0,0,0,0,2,2,2,1,2,2,2,2,2,3}, // 14
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 15
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 16
+  {0,0,0,0,0,0,1,0,0,2,2,2,2,2,2,2,2,2,2,0,0,1,0,0,0,0,0,0}, // 17
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 18
+  {0,0,0,0,0,0,1,0,0,2,0,0,0,0,0,0,0,0,2,0,0,1,0,0,0,0,0,0}, // 19
+  {0,1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0}, // 20
+  {0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,1,0}, // 21
+  {0,1,0,0,0,0,1,0,0,0,0,0,1,0,0,1,0,0,0,0,0,1,0,0,0,0,1,0}, // 22
+  {0,4,1,1,0,0,1,1,1,1,1,1,1,2,2,1,1,1,1,1,1,1,0,0,1,1,4,0}, // 23
+  {0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0}, // 24
+  {0,0,0,1,0,0,1,0,0,1,0,0,0,0,0,0,0,0,1,0,0,1,0,0,1,0,0,0}, // 25
+  {0,1,1,1,1,1,1,0,0,1,1,1,1,0,0,1,1,1,1,0,0,1,1,1,1,1,1,0}, // 26
+  {0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0}, // 27
+  {0,1,0,0,0,0,0,0,0,0,0,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,1,0}, // 28
+  {0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0}, // 29
+  {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, // 30
+};
+
+Board::Board() {
+  resetBoardState();
+}
+
+void Board::resetBoardState() {
+  for (uint8_t row = 0; row < ROWS; row++)
+    for (uint8_t column = 0; column < COLUMNS; column++)
+      board_state[row][column] = board[row][column];
+}
+
+bool Board::isWalkable(Position point, float_t position_delta, Direction direction) const {
+
+  switch (direction) {
+    case Direction::LEFT:
+      return board_state[int(point.y)][int(point.x - position_delta)] != 0;
+    case Direction::RIGHT:
+      return board_state[int(point.y)][int(point.x) + 1] != 0;
+    case Direction::UP:
+      return board_state[int(point.y - position_delta)][int(point.x)] != 0;
+    case Direction::DOWN:
+      return board_state[int(point.y) + 1][int(point.x)] != 0;
+    case Direction::NONE:
+    default: return true;
+  }
+}
+
+SDL_Rect Board::pelletSprite() {
+  return pellet;
+}
+
+SDL_Rect Board::superPelletSprite() {
+  return super_pellet;
+}
+
+std::vector<SDL_Point> Board::pelletPositions() {
+  std::vector<SDL_Point> positions;
+  for (uint8_t row = 0; row < ROWS; row++) {
+    for (uint8_t column = 0; column < COLUMNS; column++) {
+      if (board_state[row][column] == 1)
+        positions.push_back({column, row});
+    }
+  }
+  return positions;
+}
+
+std::vector<SDL_Point> Board::superPelletPositions() {
+  // Hard coded is probably better than this
+  std::vector<SDL_Point> positions;
+  for (uint8_t row = 0; row < ROWS; row++) {
+    for (uint8_t column = 0; column < COLUMNS; column++) {
+      if (board_state[row][column] == 4)
+        positions.push_back({column, row});
+    }
+  }
+  return positions;
+}

src/Board.h

@@ -0,0 +1,35 @@
+#ifndef PACMAN_BOARD_H
+#define PACMAN_BOARD_H
+
+#include "Direction.h"
+#include "Position.h"
+#include <SDL2/SDL_rect.h>
+#include <cstdint>
+#include <vector>
+
+const uint8_t ROWS = 31;
+const uint8_t COLUMNS = 28;
+
+class Board {
+public:
+  Board();
+
+  [[nodiscard]] bool isWalkable(Position point, float_t d, Direction direction) const;
+
+  SDL_Rect pelletSprite();
+
+  SDL_Rect superPelletSprite();
+
+  std::vector<SDL_Point> pelletPositions();
+
+  std::vector<SDL_Point> superPelletPositions();
+
+private:
+  uint8_t board_state[ROWS][COLUMNS];
+  const SDL_Rect super_pellet = {0*32, 9*32, 32, 32};
+  const SDL_Rect pellet       = {1*32, 9*32, 32, 32};
+
+  void resetBoardState();
+};
+
+#endif //PACMAN_BOARD_H

src/CMakeLists.txt

@@ -0,0 +1,12 @@
+include(${CMAKE_BINARY_DIR}/conan.cmake)
+conan_add_remote(NAME bincrafters INDEX 1 URL https://api.bintray.com/conan/bincrafters/public-conan)
+
+conan_cmake_run(CONANFILE ../conanfile.py BASIC_SETUP CMAKE_TARGETS BUILD missing)
+
+find_package(sdl2 REQUIRED)
+find_package(sdl2_image REQUIRED)
+include_directories(${sdl2_INCLUDE_DIRS} ${sdl2_image_INCLUDE_DIRS})
+
+file(GLOB_RECURSE sources CONFIGURE_DEPENDS "*.cpp")
+add_executable(${PROJECT_NAME} ${sources})
+target_link_libraries(${PROJECT_NAME} sdl2::sdl2 sdl2_image::sdl2_image)

src/Direction.h

@@ -0,0 +1,12 @@
+#ifndef PACMAN_DIRECTION_H
+#define PACMAN_DIRECTION_H
+
+enum class Direction {
+  NONE,
+  LEFT,
+  RIGHT,
+  UP,
+  DOWN
+};
+
+#endif //PACMAN_DIRECTION_H

src/Game.cpp

@@ -0,0 +1,60 @@
+#include "Game.h"
+
+#include <SDL2/SDL.h>
+
+#include <chrono>
+
+Game::Game()
+  : window(448*2, 496*2) {
+}
+
+auto Game::now() {
+  return std::chrono::system_clock::now();
+}
+
+void Game::run() {
+  InputState inputState;
+  auto current_time = now();
+  while (!inputState.close) {
+    processEvents(inputState);
+    auto time_delta = now() - current_time;
+    auto milli_delta = std::chrono::duration_cast<std::chrono::milliseconds>(time_delta);
+    pacMan.update(milli_delta, inputState, board);
+    current_time += time_delta;
+    window.update(pacMan, board);
+  }
+}
+
+void Game::processEvents(InputState & inputState) {
+  SDL_Event event;
+  while (SDL_PollEvent(&event)) {
+    switch (event.type) {
+      case SDL_QUIT:
+        inputState.close = true;
+        break;
+      case SDL_KEYDOWN:
+        keyToggle(event, inputState, true);
+        break;
+      case SDL_KEYUP:
+        keyToggle(event, inputState, false);
+        break;
+    }
+  }
+}
+
+void Game::keyToggle(const SDL_Event & event, InputState & inputState, bool on) {
+  switch (event.key.keysym.sym) {
+    case SDLK_UP:
+      inputState.up = on;
+      break;
+    case SDLK_DOWN:
+      inputState.down = on;
+      break;
+    case SDLK_LEFT:
+      inputState.left = on;
+      break;
+    case SDLK_RIGHT:
+      inputState.right = on;
+      break;
+  }
+}

src/Game.h

@@ -0,0 +1,24 @@
+#ifndef PACMAN_GAME_H
+#define PACMAN_GAME_H
+
+#include "Board.h"
+#include "GameWindow.h"
+#include "InputState.h"
+#include "PacMan.h"
+
+class Game {
+public:
+  Game();
+  void run();
+
+private:
+  GameWindow window;
+  PacMan pacMan;
+  Board board;
+
+  static void processEvents(InputState & inputState) ;
+  static void keyToggle(const SDL_Event & event, InputState & inputState, bool on);
+  [[nodiscard]] static auto now() ;
+};
+
+#endif //PACMAN_GAME_H

src/GameWindow.cpp

@@ -0,0 +1,149 @@
+#include "GameWindow.h"
+#include "PacMan.h"
+
+#include <SDL2/SDL_image.h>
+#include <iostream>
+#include <vector>
+
+GameWindow::GameWindow(int width, int height) {
+  initSDL();
+  initSDLImage();
+  auto sdl_window = createWindow(width, height);
+  auto sdl_renderer = createRenderer(sdl_window);
+  createWindowSurface(sdl_window);
+  setDrawColor(sdl_renderer);
+  maze_texture = loadTexture(sdl_renderer, "../../../assets/maze.png");
+  sprite_texture = loadTexture(sdl_renderer, "../../../assets/sprites32.png");
+}
+
+void GameWindow::update(const PacMan & pacMan, Board board) {
+  SDL_RenderClear(renderer.get());
+
+  renderMaze();
+  renderBoard(board);
+  renderPacMan(pacMan);
+
+  SDL_RenderPresent(renderer.get());
+}
+
+void GameWindow::renderMaze() const {
+  renderTexture(maze_texture.get(), nullptr, nullptr);
+}
+
+void GameWindow::renderBoard(Board board) {
+  renderPellets(board);
+  renderSuperPellets(board);
+}
+
+void GameWindow::renderSuperPellets(Board & board) const {
+  SDL_Rect sprite_rect = board.superPelletSprite();
+  std::vector<SDL_Point> superPelletPositions = board.superPelletPositions();
+  for (const auto & pos : superPelletPositions) {
+    SDL_Rect maze_rect = targetRect({ float_t(pos.x), float_t(pos.y) }, 16);
+    renderTexture(sprite_texture.get(), &sprite_rect, &maze_rect);
+  }
+}
+
+void GameWindow::renderPellets(Board & board) const {
+  SDL_Rect sprite_rect = board.pelletSprite();
+  std::vector<SDL_Point> pelletPositions = board.pelletPositions();
+  for (const auto & pos : pelletPositions) {
+    SDL_Rect maze_rect = targetRect({ float_t(pos.x), float_t(pos.y) }, 16);
+    renderTexture(sprite_texture.get(), &sprite_rect, &maze_rect);
+  }
+}
+
+void GameWindow::renderPacMan(const PacMan & pac_man) const {
+  Position maze_position = pac_man.currentPosition();
+  SDL_Rect maze_rect = targetRect(maze_position, 16);
+  SDL_Rect sprite_rect = pac_man.currentSprite();
+  renderTexture(sprite_texture.get(), &sprite_rect, &maze_rect);
+}
+
+SDL_Rect GameWindow::targetRect(const Position & position, int pixel_increase) {
+  int pixels = 32;
+  int displacement = pixel_increase / 2;
+  return {
+    int(pixels * position.x) - displacement,
+    int(pixels * position.y) - displacement,
+    (pixels + pixel_increase),
+    (pixels + pixel_increase)
+  };
+}
+
+void GameWindow::renderTexture(SDL_Texture * texture, SDL_Rect * texture_rect, SDL_Rect * target_rect) const {
+  if (SDL_RenderCopy(renderer.get(), texture, texture_rect, target_rect) < 0)
+    exitFailure("Failed to copy texture to renderer");
+}
+
+void GameWindow::initSDL() {
+  if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
+    exitFailure("Failed to initialize the SDL2 library");
+}
+
+void GameWindow::initSDLImage() {
+  int img_flags = IMG_INIT_PNG;
+  if (IMG_Init(img_flags) != img_flags)
+    exitImgFailure("Failed to init SDL_Image with png");
+}
+
+SDL_Window * GameWindow::createWindow(int width, int height) {
+  window = std::unique_ptr<SDL_Window, SDL_Window_Deleter>(SDL_CreateWindow(
+    "Pacman",
+    SDL_WINDOWPOS_CENTERED,
+    SDL_WINDOWPOS_CENTERED,
+    width,
+    height,
+    SDL_WINDOW_OPENGL));
+
+  if (!window)
+    exitFailure("Failed to create window");
+
+  return window.get();
+}
+
+SDL_Renderer * GameWindow::createRenderer(SDL_Window * sdl_window) {
+  renderer = std::unique_ptr<SDL_Renderer, SDL_Renderer_Deleter>(SDL_CreateRenderer(
+    sdl_window,
+    -1,
+    SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC));
+
+  if (!renderer)
+    exitFailure("Failed to create renderer");
+
+  return renderer.get();
+}
+
+void GameWindow::createWindowSurface(SDL_Window * sdl_window) {
+  window_surface = std::unique_ptr<SDL_Surface, SDL_Surface_Deleter>(SDL_GetWindowSurface(sdl_window));
+  if (!window_surface)
+    exitFailure("Failed to get the surface from the window");
+}
+
+void GameWindow::setDrawColor(SDL_Renderer * sdl_renderer) {
+  if (SDL_SetRenderDrawColor(sdl_renderer, 0, 0, 0, SDL_ALPHA_OPAQUE) < 0)
+    exitFailure("Failed to set renderer color");
+}
+
+std::unique_ptr<SDL_Texture, SDL_Texture_Deleter> GameWindow::loadTexture(SDL_Renderer * sdl_renderer, const std::string& path) {
+  auto surface = std::unique_ptr<SDL_Surface, SDL_Surface_Deleter>(IMG_Load(path.c_str()));
+  if (!surface)
+    exitImgFailure("Failed to load image");
+
+  auto texture = std::unique_ptr<SDL_Texture, SDL_Texture_Deleter>(SDL_CreateTextureFromSurface(sdl_renderer, surface.get()));
+  if (!texture)
+    exitFailure("Failed to create texture from surface");
+  return texture;
+}
+
+void GameWindow::exitFailure(const std::string& message) {
+  std::cerr << message << "\n";
+  std::cerr << "SDL2 Error: " << SDL_GetError() << "\n";
+  exit(1);
+}
+
+void GameWindow::exitImgFailure(const std::string& message) {
+  std::cerr << message << "\n";
+  std::cerr << "SDL2_Image Error: " << IMG_GetError() << "\n";
+  exit(1);
+}

src/GameWindow.h

@@ -0,0 +1,65 @@
+#ifndef PACMAN_GAMEWINDOW_H
+#define PACMAN_GAMEWINDOW_H
+
+#include <memory>
+#include <string>
+
+#include "PacMan.h"
+#include <SDL2/SDL.h>
+
+struct SDL_Window_Deleter {
+  void operator()(SDL_Window * window) {
+    SDL_DestroyWindow(window);
+  }
+};
+
+struct SDL_Renderer_Deleter {
+  void operator()(SDL_Renderer * renderer) {
+    SDL_DestroyRenderer(renderer);
+  }
+};
+
+struct SDL_Surface_Deleter {
+  void operator()(SDL_Surface * surface) {
+    SDL_FreeSurface(surface);
+  }
+};
+
+struct SDL_Texture_Deleter {
+  void operator()(SDL_Texture * texture) {
+    SDL_DestroyTexture(texture);
+  }
+};
+
+class PacMan;
+
+class GameWindow {
+public:
+  explicit GameWindow(int width, int height);
+  void update(const PacMan & pacMan, Board board);
+
+private:
+  std::unique_ptr<SDL_Window, SDL_Window_Deleter> window;
+  std::unique_ptr<SDL_Renderer, SDL_Renderer_Deleter> renderer;
+  std::unique_ptr<SDL_Surface, SDL_Surface_Deleter> window_surface;
+  std::unique_ptr<SDL_Texture, SDL_Texture_Deleter> maze_texture;
+  std::unique_ptr<SDL_Texture, SDL_Texture_Deleter> sprite_texture;
+  SDL_Window * createWindow(int width, int height);
+  SDL_Renderer * createRenderer(SDL_Window * window);
+  void createWindowSurface(SDL_Window * sdl_window);
+  static void initSDL();
+  static void initSDLImage();
+  static void setDrawColor(SDL_Renderer * sdl_renderer);
+  static void exitFailure(const std::string& message);
+  static void exitImgFailure(const std::string& message);
+  static std::unique_ptr<SDL_Texture, SDL_Texture_Deleter> loadTexture(SDL_Renderer * sdl_renderer, const std::string& path);
+  void renderMaze() const;
+  void renderPacMan(const PacMan & pac_man) const;
+  void renderBoard(Board board);
+  void renderPellets(Board & board) const;
+  void renderSuperPellets(Board & board) const;
+  static SDL_Rect targetRect(const Position & position, int pixel_increase);
+  void renderTexture(SDL_Texture * texture, SDL_Rect * texture_rect, SDL_Rect * target_rect) const;
+};
+
+#endif //PACMAN_GAMEWINDOW_H

src/InputState.cpp

@@ -0,0 +1 @@
+#include "InputState.h"

src/InputState.h

@@ -0,0 +1,13 @@
+#ifndef PACMAN_INPUTSTATE_H
+#define PACMAN_INPUTSTATE_H
+
+class InputState {
+public:
+  bool close = false;
+  bool up = false;
+  bool down = false;
+  bool left = false;
+  bool right = false;
+};
+
+#endif //PACMAN_INPUTSTATE_H

src/PacMan.cpp

@@ -0,0 +1,73 @@
+#include "PacMan.h"
+
+PacMan::PacMan() :
+  right_animation{right_wide, right_narrow, closed, right_narrow},
+  left_animation{left_wide, left_narrow, closed, left_narrow},
+  up_animation{up_wide, up_narrow, closed, up_narrow},
+  down_animation{down_wide, down_narrow, closed, down_narrow} {
+}
+
+SDL_Rect PacMan::currentSprite() const {
+  switch (direction) {
+    case Direction::NONE: return closed;
+    case Direction::LEFT: return left_animation[animation_position];
+    case Direction::RIGHT: return right_animation[animation_position];
+    case Direction::UP: return up_animation[animation_position];
+    case Direction::DOWN: return down_animation[animation_position];
+  }
+}
+
+Position PacMan::currentPosition() const {
+  return pos;
+}
+
+void PacMan::update(std::chrono::milliseconds time_delta, InputState state, const Board & board) {
+  setDirection(state);
+  updateAnimationPosition(time_delta);
+  updateMazePosition(time_delta, board);
+}
+
+void PacMan::setDirection(const InputState & state) {
+  if (state.left)
+    direction = Direction::LEFT;
+  else if (state.right)
+    direction = Direction::RIGHT;
+  else if (state.up)
+    direction = Direction::UP;
+  else if (state.down)
+    direction = Direction::DOWN;
+}
+
+void PacMan::updateAnimationPosition(std::chrono::milliseconds time_delta) {
+  animation_position_delta += (time_delta.count() / 100.0);
+  animation_position = int(animation_position + animation_position_delta) % 4;
+  animation_position_delta = (animation_position_delta < 1) ? animation_position_delta : (animation_position_delta - 1);
+}
+
+void PacMan::updateMazePosition(std::chrono::milliseconds time_delta, const Board & board) {
+  float_t position_delta = (time_delta.count() / 128.0);
+
+  if (board.isWalkable(pos, position_delta, direction)) {
+    switch (direction) {
+      case Direction::NONE:
+        break;
+      case Direction::LEFT:
+        pos.x -= position_delta;
+        pos.y = floor(pos.y);
+        break;
+      case Direction::RIGHT:
+        pos.x += position_delta;
+        pos.y = floor(pos.y);
+        break;
+      case Direction::UP:
+        pos.x = floor(pos.x);
+        pos.y -= position_delta;
+        break;
+      case Direction::DOWN:
+        pos.x = floor(pos.x);
+        pos.y += position_delta;
+        break;
+    }
+  }
+
+}

src/PacMan.h

@@ -0,0 +1,45 @@
+#ifndef PACMAN_PACMAN_H
+#define PACMAN_PACMAN_H
+
+#include "Board.h"
+#include "Direction.h"
+#include "InputState.h"
+#include "Position.h"
+
+#include <SDL2/SDL_rect.h>
+#include <chrono>
+
+class PacMan {
+public:
+  PacMan();
+  [[nodiscard]] SDL_Rect currentSprite() const;
+  [[nodiscard]] Position currentPosition() const;
+
+  void update(std::chrono::milliseconds time_delta, InputState state, const Board & board);
+
+private:
+
+  Direction direction = Direction::NONE;
+  Position pos = {14, 23};
+  const SDL_Rect right_wide   = {0*32, 0, 32, 32};
+  const SDL_Rect right_narrow = {1*32, 0, 32, 32};
+  const SDL_Rect closed       = {2*32, 0, 32, 32};
+  const SDL_Rect left_narrow  = {3*32, 0, 32, 32};
+  const SDL_Rect left_wide    = {4*32, 0, 32, 32};
+  const SDL_Rect up_wide      = {5*32, 0, 32, 32};
+  const SDL_Rect up_narrow    = {6*32, 0, 32, 32};
+  const SDL_Rect down_wide    = {7*32, 0, 32, 32};
+  const SDL_Rect down_narrow  = {8*32, 0, 32, 32};
+  const SDL_Rect right_animation[4];
+  const SDL_Rect left_animation[4];
+  const SDL_Rect up_animation[4];
+  const SDL_Rect down_animation[4];
+  uint8_t animation_position = 0;
+  float_t animation_position_delta = 0.0;
+
+  void setDirection(const InputState & state);
+  void updateAnimationPosition(std::chrono::milliseconds time_delta);
+  void updateMazePosition(std::chrono::milliseconds time_delta, const Board & board);
+};
+
+#endif //PACMAN_PACMAN_H

src/Position.h

@@ -0,0 +1,11 @@
+#ifndef PACMAN_POSITION_H
+#define PACMAN_POSITION_H
+
+#include <math.h>
+
+struct Position {
+  float_t x;
+  float_t y;
+};
+
+#endif //PACMAN_POSITION_H

src/main.cpp

@@ -0,0 +1,7 @@
+#include "Game.h"
+
+extern "C" int main([[maybe_unused]] int argc, [[maybe_unused]] char * argv[]) {
+  Game game;
+  game.run();
+  return 0;
+}