implement lesson01

components/Point.cpp

@@ -1,36 +1,25 @@
 #include "Point.h"
 
-Point::Point(uint32_t y, uint32_t x, int img)
-    : x_ {x}, y_ {y}, img_ {img}
-{ }
-
-void Point::setPoint(uint32_t y, uint32_t x) {
-    x_ = x;
-    y_ = y;
-}
-
-uint32_t Point::getX() const {
-    return x_;
+Point::Point(uint32_t y, uint32_t x, int img) {
+    // TODO: implement constructor
+    // should copy x,y and image
 }
 
-uint32_t Point::getY() const {
-    return y_;
+Point::~Point() {
+    // TODO: implement destructor
+    // should hide the point (hint: function for this already exists)
 }
 
-void Point::moveUp() {
-    y_--;
-}
-
-void Point::moveDown() {
-    y_++;
+void Point::setPoint(uint32_t y, uint32_t x) {
+    // TODO: implement this setter
 }
 
-void Point::moveLeft() {
-    x_--;
+uint32_t Point::getX() const {
+    // TODO: implement this getter
 }
 
-void Point::moveRight() {
-    x_++;
+uint32_t Point::getY() const {
+    // TODO: implement this getter
 }
 
 int Point::getImg() const {

components/Point.h

@@ -10,16 +10,12 @@ private:
 
 public:
     Point(uint32_t y, uint32_t x, int img = '*');
+    ~Point();
 
     void setPoint(uint32_t y, uint32_t x);
     uint32_t getX() const;
     uint32_t getY() const;
 
-    void moveUp();
-    void moveDown();
-    void moveLeft();
-    void moveRight();
-
     int getImg() const;
     void setImg(int image);
 

components/Snack.cpp

@@ -1,17 +0,0 @@
-#include "Snack.h"
-
-#include <random>
-
-void generateSnack(Point* snack){
-    std::random_device dev;
-    static std::mt19937 prng(dev());
-    static std::uniform_int_distribution<uint32_t> distX(0, GAME_RIGHT_WALL_X);
-    static std::uniform_int_distribution<uint32_t> distY(0, GAME_BOTTOM_WALL_Y);
-
-    const uint32_t x = distX(prng);
-    const uint32_t y = distY(prng);
-
-    snack->setImg(SNACK_CHAR);
-    snack->setPoint(y, x);
-    snack->print();
-}

components/Snack.h

@@ -1,7 +0,0 @@
-#pragma once
-
-#include "Point.h"
-
-static constexpr int SNACK_CHAR = '*';
-
-void generateSnack(Point* snack);

components/Snake.cpp

@@ -1,163 +0,0 @@
-#include "Snake.h"
-
-Snake::Snake(uint32_t headY, uint32_t headX)
-    :direction_{LEFT}
-{
-    snake_.push_back(Point{headY, headX, '>'});
-
-    for (uint32_t i = 1; i <= SNAKE_DEFAULT_SIZE; i++) {
-        snake_.push_back(Point{headY, headX + i, SNAKE_BODY_CHAR});
-    }
-}
-
-bool Snake::isBitten() const {
-    const Point& head = snake_.front();
-
-    // use manual iterator loop instead of
-    // range-based for as we need to skip head
-
-    for (auto it = std::next(snake_.begin()); it != snake_.end(); it++) {
-        if (it->getX() == head.getX() && it->getY() == head.getY()) {
-            return true;
-        }
-    }
-
-    return false;
-}
-
-bool Snake::hasBitSnack(uint32_t snackY, uint32_t snackX) const {
-    return snake_.front().getY() == snackY && snake_.front().getX() == snackX;
-}
-
-bool Snake::hasCrashedWall() const {
-    const Point& head = snake_.front();
-
-    return (head.getY() < GAME_TOP_WALL_Y)    ||
-           (head.getY() > GAME_BOTTOM_WALL_Y) ||
-           (head.getX() < GAME_LEFT_WALL_X)   ||
-           (head.getX() > GAME_RIGHT_WALL_X);
-}
-
-uint32_t Snake::getSize() const {
-    return snake_.size();
-}
-
-void Snake::incSize(){
-    const auto tail = std::prev(snake_.end());
-    const uint32_t tailX = tail->getX();
-    const uint32_t tailY = tail->getY();
-
-    const auto prev = std::prev(tail);
-    const uint32_t prevX = prev->getX();
-    const uint32_t prevY = prev->getY();
-
-    if (prevY == tailY){ 
-        // if the two last parts are on the same 'height' (horizontal tail direction)
-
-        if (prevX < tailX) {
-            // if the tail continues to the left:
-            // add one part to the right of the tail
-            snake_.push_back(Point{tailY, tailX + 1, SNAKE_BODY_CHAR}); 
-        }
-        else {
-            // if the tail continues to the right:
-            // add one part to the left of the tail
-            snake_.push_back(Point{tailY, tailX - 1, SNAKE_BODY_CHAR});
-        }
-    }
-    else {
-        // if the two last parts are on the same 'width' (vertical tail direction)
-
-        if (prevY < tailY) {
-            // if the tail continues to the upper side:
-            // add one part facing down
-            snake_.push_back(Point{tailY + 1, tailX, SNAKE_BODY_CHAR});
-        }
-        else {
-            // if the tail continues to the lower side:
-            // add one part facing up
-            snake_.push_back(Point{tailY - 1, tailX, SNAKE_BODY_CHAR});
-        }
-    }
-}
-
-void Snake::updateHead(){
-    switch (direction_) {
-    case UP:
-        snake_.front().moveUp();
-        break;
-
-    case DOWN:
-        snake_.front().moveDown();
-        break;
-
-    case LEFT:
-        snake_.front().moveLeft();
-        break;
-
-    case RIGHT:
-        snake_.front().moveRight();
-        break;
-    }
-}
-
-void Snake::printSnake() const {
-    //We print each element of the snake-list
-    for (const Point& part : snake_){
-        part.print();    
-    }
-
-    Graphics::get().refreshScreen();
-}
-
-void Snake::move() {
-    auto head = snake_.begin();
-    auto second = std::next(snake_.begin());
-
-    // clear the tail - overwrites with ' '
-    snake_.back().clear();
-
-    // update all nodes by iterating from the back
-    // and copying the previous nodes values in
-    // until the second-to-first one
-    auto iter = std::prev(snake_.end());
-    while (iter != second) {
-        auto prev = std::prev(iter);
-        *iter = *prev;
-        iter = prev;
-    }
-
-    // update the previous to head node
-    // by copying from head and setting
-    // the image to be body instead of head
-    *second = *head;
-    iter->setImg(SNAKE_BODY_CHAR);
-
-    updateHead();
-
-    printSnake();
-}
-
-void Snake::moveUp(){
-    snake_.front().setImg('v');
-    direction_ = UP;
-    move();
-}
-
-void Snake::moveDown(){
-    snake_.front().setImg('^');
-    direction_ = DOWN;
-    move();
-}
-
-void Snake::moveLeft(){
-    snake_.front().setImg('>');
-    direction_ = LEFT;
-    move();
-}
-
-void Snake::moveRight(){
-    snake_.front().setImg('<');
-    direction_ = RIGHT;
-    move();
-}

components/Snake.h

@@ -1,34 +0,0 @@
-#pragma once
-
-#include <vector>
-
-#include "Point.h"
-#include "Snack.h"
-
-static constexpr int SNAKE_BODY_CHAR = 'o';
-static constexpr uint32_t SNAKE_DEFAULT_SIZE = 4;
-
-class Snake{
-private:
-    std::vector<Point> snake_;
-    int direction_;
-
-    void updateHead();
-    void printSnake() const;
-
-public:
-    Snake(uint32_t headY = LINES/2, uint32_t headX = COLS/2);
-
-    void moveUp();
-    void moveDown();
-    void moveLeft();
-    void moveRight();
-    void move();
-
-    bool isBitten() const;
-    bool hasBitSnack(uint32_t snackY, uint32_t snackX) const;
-    bool hasCrashedWall() const;
-
-    uint32_t getSize() const;
-    void incSize();
-};

game/Controller.cpp

@@ -1,74 +0,0 @@
-#include "Controller.h"
-
-#include <string>
-#include <iostream>
-
-Controller::Controller()
-    : input_{0}, score_{0}, snack_{Point(0,0,0)}
-{
-    generateSnack(&snack_);
-}
-
-uint32_t Controller::getCurrScore() const {
-    return score_;
-}
-
-void Controller::resetScore() {
-    score_ = 0;
-}
-
-void Controller::printScore(uint32_t score) const {
-    const std::string str = "Score: " + std::to_string(score); 
-    // locate message at (-1,-1) because otherwise it'll be printed inside the game box
-    Graphics::get().printMsg(-1, -1, str);
-}
-
-int Controller::act() {
-    if (snake_.hasBitSnack(snack_.getY(), snack_.getX())) {
-        score_ += 10;
-        snake_.incSize();
-
-        generateSnack(&snack_);
-        Graphics::get().advanceDifficulty();
-        
-        printScore(score_);
-    }
-
-    switch (input_) {
-    case UP:
-        snake_.moveUp();
-        Graphics::get().setVertical(true);
-        break;
-    case DOWN:
-        snake_.moveDown();
-        Graphics::get().setVertical(true);
-        break;
-    case LEFT:
-        snake_.moveLeft();
-        Graphics::get().setVertical(false);
-        break;
-    case RIGHT:
-        snake_.moveRight();
-        Graphics::get().setVertical(false);
-        break;
-    default:
-        snake_.move();
-    }
-
-    Graphics::get().refreshScreen();
-
-    if (snake_.isBitten() || snake_.hasCrashedWall()) {
-        return DEFEAT;
-    }
-
-    return 0;
-}
-
-int Controller::readInput() {
-    input_ = Graphics::get().readInpt();
-    return input_;
-}
-
-bool Controller::wantsToQuit() const {
-    return input_ == EXIT_GAME;
-}

game/Controller.h

@@ -1,31 +0,0 @@
-#pragma once
-
-#include <memory>
-
-#include "../input-output/Graphics.h"
-#include "../components/Snake.h"
-#include "../components/Point.h"
-
-static constexpr int DEFEAT = -1;
-
-class Controller {
-private:
-    Snake snake_;
-    Point snack_;
-
-    int input_;
-    uint32_t score_;
-
-    void printScore(uint32_t score) const;
-
-public:
-    Controller();
-
-    uint32_t getCurrScore() const;
-
-    void resetScore();
-    int readInput();
-    int act();
-
-    bool wantsToQuit() const;
-};

game/Game.cpp

@@ -1,64 +0,0 @@
-#include "Game.h"
-
-#include <algorithm>
-#include <limits.h>
-
-void SnakeGame::addPlayer(const std::string& name){
-    players_.emplace_back(Player{name});
-}
-
-uint32_t SnakeGame::getHighScore() const {
-    return high_score_;
-}
-
-const std::string& SnakeGame::getBestPlayer() const {
-    return best_player_;
-}
-
-void SnakeGame::play(const std::string& name){
-    auto find = std::find_if(players_.begin(), players_.end(), [&name](const Player& p){ return p.getName() == name; });
-
-    if (find == players_.end()) {
-        players_.emplace_back(Player(name));
-        find = std::prev(players_.end());
-    }
-
-    Graphics::get().init(game_name_);
-
-    find->play();
-
-    Graphics::get().finalize();
-
-
-    if (find->getHighScore() > high_score_){
-        high_score_ = find->getHighScore();
-        best_player_ = find->getName();
-    }
-
-    std::cout << "Highscore: " << high_score_ << " by " << best_player_ << std::endl;
-}
-
-void SnakeGame::play(){
-    while(1) {
-        std::string name;
-        std::cout << "Who's playing: ";
-        std::cin >> name;
-        std::cout << std::endl;
-
-
-        play(name);
-        std::cin.clear();
-        std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
-        std::cout << "Do you or someone else want to play again? (yes or no): ";
-        std::string ans;
-        
-        std::cin >> ans;
-        
-        if (ans != "yes") {
-            std::cout << "Exiting ..." << std::endl;
-            break;
-        }
-
-        std::cout << "Perfect..." << std::endl;
-    }
-}

game/Game.h

@@ -1,27 +0,0 @@
-#pragma once
-
-#include <string>
-#include <vector>
-
-#include "Controller.h"
-#include "../components/Snake.h"
-#include "../input-output/Player.h"
-
-class SnakeGame{
-private:
-    const std::string game_name_ = "Snake Game for C++ Course";
-    std::vector<Player> players_;
-
-    uint32_t high_score_ = 0;
-    std::string best_player_ = "None";
-    
-    void play(const std::string& name);
-    void addPlayer(const std::string& name);
-
-public:
-    uint32_t getHighScore() const;
-    const std::string& getBestPlayer() const;
-    void printGameStatistics() const;
-
-    void play();
-};

input-output/Player.cpp

@@ -1,32 +0,0 @@
-#include "Player.h"
-
-Player::Player(std::string name)
-    : name_{name}
-{}
-
-const std::string& Player::getName() const {
-    return name_;
-}
-
-uint32_t Player::getHighScore() const {
-    return high_score_;
-}
-
-void Player::play(){
-    Controller controller;
-
-    while (controller.wantsToQuit() == false) {
-        controller.readInput();
-
-        if (controller.act() == DEFEAT) {
-            break;
-        }
-    }
-
-    const uint32_t score = controller.getCurrScore();
-    controller.resetScore();
-
-    if (score > high_score_) {
-        high_score_ = score;
-    }
-}

input-output/Player.h

@@ -1,21 +0,0 @@
-#pragma once
-
-#include "../game/Controller.h"
-
-#include <iostream>
-#include <string>
-
-class Player{
-private:
-    std::string name_;
-    uint32_t high_score_ = 0;
-    uint32_t timesPlayed_ = 0;
-
-public:
-    Player(std::string name);
-
-    void play();
-
-    uint32_t getHighScore() const;
-    const std::string& getName() const;
-};

main.cpp

@@ -1,11 +1,23 @@
-
-#include <ncurses.h>
 #include <iostream>
+#include <thread>
+#include <chrono>
+
+#include "components/Point.h"
+#include "input-output/Graphics.h"
+
+void mainL01() {
+    Graphics::get().init("Learners Helper");
+
+    Point p(10,10,'X');
 
-#include "game/Game.h"
+    std::this_thread::sleep_for(std::chrono::seconds(10));
+
+    Graphics::get().finalize();
+
+    std::cout << "Helper QUIT" << std::endl;
+}
 
 int main() {
-    SnakeGame game;
-    game.play();
+    mainL01();
     return 0;
 }