clean code adding a menu class

src/config.h

@@ -10,6 +10,6 @@
 #define PADDLE_LENGTH 3
 #define INITIAL_BALL_DELAY 200
 
-#define MAX_POINTS 9
-#define START_TIMER 3
+#define MAX_POINTS 2
+#define START_TIMER 2
 #define FIRST_START_BALL_DELAY 500

src/menu.cpp

@@ -0,0 +1,42 @@
+#include "menu.h"
+
+void Menu::next_mode() {
+  if (_game_mode < _game_modes(COUNT_MODES) - 1)
+    _game_mode= _game_modes(_game_mode+1);
+}
+
+void Menu::prev_mode() {
+  if (_game_mode > 0) {
+    _game_mode= _game_modes(_game_mode-1);
+  }
+}
+
+uint8_t Menu::get_mode() {
+  return _game_mode;
+}
+
+uint8_t Menu::number_of_bots() {
+  if (_game_mode == PVC) return 1;
+  else if (_game_mode == CVC) return 2;
+  return 0;
+}
+
+void Menu::increase_skills() {
+  if (_bot_skill < _bot_skill_levels(COUNT_SKILLS) - 1)
+    _bot_skill= _bot_skill_levels(_bot_skill+1);
+}
+
+void Menu::decrease_skills() {
+  if (_bot_skill > 0) {
+    _bot_skill= _bot_skill_levels(_bot_skill-1);
+  }
+}
+
+uint8_t Menu::get_skill() {
+  return _bot_skill;
+}
+
+void Menu::reset_menu() {
+  _game_mode= PVP;
+  _bot_skill= EASY;
+}

src/menu.h

@@ -0,0 +1,26 @@
+#ifndef MENU_H
+#define MENU_H
+
+#include <Arduino.h>
+#include "font.h"
+
+class Menu {
+
+  private:
+    enum _game_modes : uint8_t {PVP, PVC, CVC, COUNT_MODES};
+    _game_modes _game_mode = PVP;
+    enum _bot_skill_levels : uint8_t {EASY, HARD, COUNT_SKILLS};
+    _bot_skill_levels _bot_skill = EASY;
+
+  public:
+    void next_mode();
+    void prev_mode();
+    uint8_t get_mode();
+    uint8_t number_of_bots();
+    void increase_skills();
+    void decrease_skills();
+    uint8_t get_skill();
+    void reset_menu();
+};
+
+#endif

src/paddle.cpp

@@ -121,7 +121,7 @@ uint8_t BotPaddle::get_skills() {
 }
 
 void BotPaddle::set_skills(uint8_t skills) {
-  if (skills < 0) _skills= 0;
-  else if (skills > 1) _skills= 1;
+  if (skills < 1) _skills= 1;
+  else if (skills > 2) _skills= 2;
   else _skills= skills;
 }