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318
simon_says.ino
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318
simon_says.ino
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/*
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* Author: Denis Cosmin
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* Date: 19.09.2016
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* Name: Simon Says
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*
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* To add a reset button connect: reset -> button <- pulldown resistor ground.
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* The buttons have 1k pulldown resitors.
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* The leds have a 220 ohm resistor.
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*
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* Will use the following numbers for colors, pins and notes
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* 0 - Yellow
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* 1 - Green
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* 2 - Red
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* 3 - Blue
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*
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*/
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/*
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* The game class, handles everything.
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*/
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class Game {
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private:
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int debounce(int last, int buttonPin);
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void playNote(int note, int noteSpeed) const;
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void flashLed(int led, int flashSpeed) const;
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public:
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static const int RED_PIN;
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static const int BLUE_PIN;
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static const int GREEN_PIN;
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static const int YELLOW_PIN;
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static const int MICROPHONE_PIN;
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static const int RED_BUTTON_PIN;
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static const int BLUE_BUTTON_PIN;
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static const int GREEN_BUTTON_PIN;
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static const int YELLOW_BUTTON_PIN;
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static const int RED_TONE;
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static const int BLUE_TONE;
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static const int GREEN_TONE;
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static const int YELLOW_TONE;
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static const int GAMEOVER_TONE;
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int gameLevel[200];
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int gameSpeed;
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int lastButtonValue;
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int currentLevel;
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int gameIsOver;
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double gameDifficulty;
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enum color { YELLOW, GREEN, RED, BLUE };
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public:
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Game();
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Game(int);
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void playLevel();
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int userInput();
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int gameOver();
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int getNote(int note) const;
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int pinToColorCode(int);
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int colorCodeToPin(int);
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int readButton(int buttonPin);
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};
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// Settings
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/* Pin settings */
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// Button pins must be in consecutive descending order! Eg: blue 12, red 11, green 10, yellow 9
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static const int Game::MICROPHONE_PIN = 13;
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static const int Game::BLUE_PIN = 12;
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static const int Game::RED_PIN = 11;
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static const int Game::GREEN_PIN = 10;
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static const int Game::YELLOW_PIN = 9;
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static const int Game::BLUE_BUTTON_PIN = 8;
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static const int Game::RED_BUTTON_PIN = 7;
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static const int Game::GREEN_BUTTON_PIN = 6;
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static const int Game::YELLOW_BUTTON_PIN = 5;
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/* Tone frequencies */
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static const int Game::RED_TONE = 200;
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static const int Game::BLUE_TONE = 400;
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static const int Game::YELLOW_TONE = 600;
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static const int Game::GREEN_TONE = 800;
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static const int Game::GAMEOVER_TONE = 1000;
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// Construct and initialize the Game object.
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Game::Game(int difficulty) : gameSpeed(1000), lastButtonValue(-1), currentLevel(0), gameDifficulty(difficulty), gameIsOver(0) {
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Serial.print("Constructing game object with difficulty: ");
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Serial.println(difficulty);
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pinMode(Game::MICROPHONE_PIN, OUTPUT);
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pinMode(Game::BLUE_PIN, OUTPUT);
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pinMode(Game::RED_PIN, OUTPUT);
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pinMode(Game::GREEN_PIN, OUTPUT);
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pinMode(Game::YELLOW_PIN, OUTPUT);
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}
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Game::Game() : gameSpeed(1000), lastButtonValue(-1), currentLevel(0), gameDifficulty(10), gameIsOver(0) {
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Serial.println("Constructing game object");
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pinMode(Game::MICROPHONE_PIN, OUTPUT);
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pinMode(Game::BLUE_PIN, OUTPUT);
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pinMode(Game::RED_PIN, OUTPUT);
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pinMode(Game::GREEN_PIN, OUTPUT);
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pinMode(Game::YELLOW_PIN, OUTPUT);
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}
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/*
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* Makes sure the button is pressed only once.
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*/
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int Game::debounce(int last, int buttonPin) {
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int current = digitalRead(buttonPin);
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if (last != current)
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{
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delay(5);
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current = digitalRead(buttonPin);
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}
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return current;
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}
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/*
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* Plays a note.
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* Receives the button number and plays the corresponding note.
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*/
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void Game::playNote(int note, int noteSpeed) const {
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Serial.print("playNote: Playing note: ");
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Serial.print(note);
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Serial.print(" with speed: ");
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Serial.println(noteSpeed);
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note = Game::getNote(note);
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tone(Game::MICROPHONE_PIN, note, noteSpeed);
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}
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/*
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* Returns the corresponding color code based on pin.
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*/
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int Game::colorCodeToPin(int value) {
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int ret_val = -1;
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switch(value) {
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case RED:
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ret_val = Game::RED_PIN;
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break;
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case GREEN:
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ret_val = Game::GREEN_PIN;
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break;
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case BLUE:
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ret_val = Game::BLUE_PIN;
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break;
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case YELLOW:
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ret_val = Game::YELLOW_PIN;
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break;
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default:
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Serial.println("colorCodeToPin: Invalid value!");
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delay(1000);
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exit(0);
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}
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return ret_val;
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}
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/*
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* Converts the button pin to a color code.
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*/
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int Game::pinToColorCode(int value) {
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int ret_val = -1;
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switch(value) {
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case Game::RED_BUTTON_PIN:
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ret_val = RED;
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break;
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case Game::GREEN_BUTTON_PIN:
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ret_val = GREEN;
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break;
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case Game::BLUE_BUTTON_PIN:
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ret_val = BLUE;
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break;
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case Game::YELLOW_BUTTON_PIN:
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ret_val = YELLOW;
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break;
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default:
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Serial.println("pinToColorCode: Invalid value!");
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delay(1000);
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exit(0);
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}
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return ret_val;
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}
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/*
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* The the corresponding note based on the color code it receives.
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*/
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int Game::getNote(int note) const {
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int return_value = -1;
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switch(note) {
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case YELLOW:
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return_value = Game::YELLOW_TONE;
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break;
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case GREEN:
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return_value = Game::GREEN_TONE;
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break;
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case RED:
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return_value = Game::RED_TONE;
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break;
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case BLUE:
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return_value = Game::BLUE_TONE;
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break;
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case 4:
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return_value = Game::GAMEOVER_TONE;
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break;
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default:
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Serial.println("playNote: Error! Invalid note!");
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delay(1000);
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exit(0);
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}
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return return_value;
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}
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/*
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* Flashes a led. Receives the led code and sets it to the corresponding pin.
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*/
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void Game::flashLed(int led, int flashSpeed) const {
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Serial.print("flashLed: Flashing LED: ");
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Serial.print(led);
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Serial.print(" with speed: ");
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Serial.println(flashSpeed);
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led = Game::colorCodeToPin(led);
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digitalWrite(led, HIGH);
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delay(flashSpeed);
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digitalWrite(led, LOW);
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}
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/*
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* Plays the next level.
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*/
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void Game::playLevel() {
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Serial.print("playLevel: Playing on level: ");
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Serial.println(Game::currentLevel);
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Game::gameLevel[Game::currentLevel] = random(0, 4); // Create a random move every time. 0 to 4 exclusive.
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++Game::currentLevel;
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int nextDificulty = Game::gameDifficulty * Game::currentLevel;
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if (Game::gameSpeed - nextDificulty >= 10) {
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Game::gameSpeed -= nextDificulty; // decrease the speed;
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}
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// Play all the moves
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for (int i = 0; i < Game::currentLevel; ++i) {
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Game::playNote(Game::gameLevel[i], Game::gameSpeed);
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Game::flashLed(Game::gameLevel[i], Game::gameSpeed);
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}
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}
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/*
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* Reads the button value and returns the following codes:
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* 0 - Yellow 1 - Green 2 - Red 3 - Blue
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*/
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int Game::readButton(int buttonPin) {
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int currentButtonValue = Game::debounce(Game::lastButtonValue, buttonPin);
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int return_value = -1;
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if (lastButtonValue == LOW && currentButtonValue > LOW) {
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return_value = Game::pinToColorCode(buttonPin);
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}
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Game::lastButtonValue = currentButtonValue;
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if (return_value >= 0) {
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Serial.print("readButton: Received signal from button number: ");
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Serial.println(return_value);
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}
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return return_value;
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}
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int Game::gameOver() {
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Serial.println("game_is_over: Checking if game is over!");
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if (Game::gameIsOver) {
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Serial.println("game_is_over: Game is over!");
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}
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return Game::gameIsOver;
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}
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/*
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* Gets the user button presses and checks them to see if they're good.
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*/
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int Game::userInput() {
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for (int i = 0; i < Game::currentLevel; ++i) {
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Serial.println("userInput: User is pressing.");
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int buttonPressed = -1;
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while(true) {
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buttonPressed = readButton(Game::RED_BUTTON_PIN);
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if (buttonPressed != -1) { break; }
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buttonPressed = readButton(Game::GREEN_BUTTON_PIN);
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if (buttonPressed != -1) { break; }
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buttonPressed = readButton(Game::YELLOW_BUTTON_PIN);
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if (buttonPressed != -1) { break; }
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buttonPressed = readButton(Game::BLUE_BUTTON_PIN);
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if (buttonPressed != -1) { break; }
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}
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if (buttonPressed != gameLevel[i]) {
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Game::playNote(4, 100); // game over note, and game over note speed.
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Game::flashLed(buttonPressed, 1000);
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return 0;
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}
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Game::playNote(buttonPressed, Game::gameSpeed);
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Game::flashLed(buttonPressed, Game::gameSpeed);
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}
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delay(500);
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return 1;
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}
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Game g(50); // Constructs the game object.
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void setup() {
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Serial.begin(9600);
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randomSeed(0);
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}
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void loop() {
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if (g.gameOver()) {
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delay(1000); // Wait for serial to finish printing.
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exit(0);
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}
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g.playLevel();
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if (g.userInput() == 0) {
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g.gameIsOver = 1;
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}
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}
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