Revision 0:eb011b288325, committed 2021-05-04

Comitter:

alanjko9

Date:

Tue May 04 20:38:25 2021 +0000

Commit message:

Piano_Tile_Racer_Source_Code

Changed in this revision

diff -r 000000000000 -r eb011b288325 4DGL-uLCD-SE.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/4DGL-uLCD-SE.lib	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/4180_1/code/4DGL-uLCD-SE/#2cb1845d7681

diff -r 000000000000 -r eb011b288325 SDFileSystem.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SDFileSystem.lib	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/neilt6/code/SDFileSystem/#e4d2567200db

diff -r 000000000000 -r eb011b288325 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,769 @@
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "uLCD_4DGL.h"
+#include <string>
+#include <list>
+#include <mpr121.h>
+#include "rtos.h"
+#include <sstream>
+
+// new class to play a note on Speaker based on PwmOut class
+class Speaker
+{
+public:
+    Speaker(PinName pin) : _pin(pin) {
+// _pin(pin) means pass pin to the Speaker Constructor
+    }
+// class method to play a note based on PwmOut class
+    void playNote(float frequency) {
+        _pin.period(1.0/frequency);
+        _pin = 0.1;
+    }
+    void off() {
+        _pin = 0.0;
+    }
+ 
+private:
+// sets up specified pin for PWM using PwmOut class 
+    PwmOut _pin;
+};
+
+ 
+//set up sd card for storing high scores
+SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card
+//leds to correspond to the key presses for debugging
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+// Create the interrupt receiver object on pin 26
+InterruptIn interrupt(p26);
+// Setup the i2c bus on pins 9 and 10
+I2C i2c(p9, p10);
+// Setup the Mpr121:
+// constructor(i2c object, i2c address of the mpr121)
+Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
+//set up uLCD
+uLCD_4DGL uLCD(p28,p27,p11); // serial tx, serial rx, reset pin;
+//set up speaker on pin 21
+Speaker speaker(p21);
+
+//GLOBAL VARIABLES HERE
+//keycode for touchpad press
+volatile int key_code = 0;
+volatile int keyPressed = -1;
+//bool variables indicating when to update game and screen
+volatile bool updateGame = false;
+//state stores the current game state
+enum State {MENU, PLAYING_GAME, GAME_OVER, SET_MUSIC, SET_DURATION, HIGH_SCORES} state;
+//the total game duration (default 30 sec. can be 15, 30, 45, 60, 120 sec)
+float gameDuration = 30.0;
+//stores the randomly generated tiles in the game (value of 0 is far left, 3 is far right)
+int tileRow0;
+int tileRow1;
+int tileRow2;
+int tileRow3;
+//keeps track of the current game score
+int scoreCount;
+//Note frequencies for songs
+float C=261.63, CX=277.18, D=293.66, DX=311.13, E=329.63, F=349.23, FX=369.99, G=392, GX=415.3, A=440, AX=466.16, B=493.88, C1=523.25;
+//different song arrays 
+float soundOfMusic[] = {C, D, E, C, E, C, E, D, E, F, F, E, D, F, E, F, G, E, G, E, G, F, G, A, A, G, F, A, G, C, D, E, F, G, A, A, D, E, F, G, A, B, B, E, F, G, A, B, C1, C1, B, A, F, B, G, C1, G, E, D};
+float threeBlindMice[] = {E, D, C, E, D, C, G, F, E, G, F, E, G, C1, C1, B, A, B, C1, G, G, G, C1, C1, B, A, B, C1, G, G, G, C1, C1, B, A, B, C1, G, G, F};
+float flyMeToTheMoon[] = {C1, B, A, G, F, G, A, C1, B, A, G, F, E, A, G, F, E, D, E, F, A, GX, F, E, D, C, C, D, A, A, C1, B, B, G, C, C, F, F, A, G, E, E};
+float halfStepScale[] = {C, CX, D, DX, E, F, FX, G, GX, A, AX, B, C1, C1, B, AX, A, GX, G, FX, F, E, DX, D, CX, C};
+//int used to determine which song is chosen (0-3)
+int soundToggle = 0;
+//bool to play song or not
+bool isSoundOn = false;
+//int used to toggle through highscores by game duration (0-4) corresponding to increasing time durations)
+int highScoreToggle = 0;
+//high score arrays pulled from SD card storage. only need top 5 scores
+std::list<int> hs15;
+std::list<int> hs30;
+std::list<int> hs45;
+std::list<int> hs60;
+std::list<int> hs120;
+//game timer
+Timer t;
+//threads
+Thread gameTimerThread;
+Thread playSoundThread;
+Mutex m;
+
+//below are various draw fuctions to draw on the uLCD
+//draw the white grid for the piano tiles
+void refreshGrid()
+{
+    uLCD.filled_rectangle(0, 0, 80, 127, 0xFFFFFF);
+}
+//draw the 4 black tiles corresponding to tileRow0-3
+void drawTiles() {
+    uLCD.filled_rectangle(20 * tileRow0, 96, 20 * tileRow0 + 20, 127, 0x000000);
+    uLCD.filled_rectangle(20 * tileRow1, 64, 20 * tileRow1 + 20, 95, 0x000000);
+    uLCD.filled_rectangle(20 * tileRow2, 32, 20 * tileRow2 + 20, 63, 0x000000);
+    uLCD.filled_rectangle(20 * tileRow3, 0, 20 * tileRow3 + 20, 31, 0x000000);
+}
+//draw the initialized game with all components
+void drawInitGame() {
+    m.lock();
+    uLCD.cls();
+    refreshGrid();
+    drawTiles();
+    uLCD.color(WHITE);
+    uLCD.text_height(2);
+    uLCD.locate(12,0);
+    uLCD.printf("Timer:");
+    uLCD.locate(12, 2);
+    uLCD.printf(" %.0f  ", gameDuration);
+    uLCD.locate(12,4);
+    uLCD.printf("Score:");
+    uLCD.locate(12,6);
+    uLCD.printf(" %d  ", scoreCount);
+    m.unlock();
+} 
+//draw only the updated components during gameplay
+void drawPlayingGame() {
+    m.lock();
+    refreshGrid();
+    drawTiles();/*
+    uLCD.locate(12, 2);
+    uLCD.printf(" %.0f  ", gameDuration - t.read());*/
+    uLCD.locate(12,6);
+    uLCD.printf(" %d  ", scoreCount);
+    m.unlock();
+}
+//draw the game over screen
+void drawGameOver() {
+    m.lock();
+   
+    uLCD.cls();
+   
+    uLCD.text_height(2);
+    uLCD.text_width(2);
+    uLCD.printf("Game Over\n\n");
+   
+    uLCD.text_height(1);
+    uLCD.text_width(1);
+    uLCD.printf("\nYour score: %d\n", scoreCount);
+    uLCD.printf("\nPress 4 to return to menu");
+
+    m.unlock();
+}
+//draw static menu screen
+void drawMenu() {
+    m.lock();
+   
+    uLCD.cls();
+    uLCD.color(WHITE);
+    uLCD.text_height(2);
+    uLCD.printf(" Piano Tile Racer \n");
+   
+    uLCD.color(16757350);
+    uLCD.text_height(1);
+    uLCD.printf("\n\n0. Start Game\n");
+    uLCD.color(6730495);
+    uLCD.printf("\n1. Change Song\n");
+    uLCD.color(6736896);
+    uLCD.printf("\n2. Change Duration\n");
+    uLCD.color(16751001);
+    uLCD.printf("3. See Highscores\n");
+    uLCD.color(13408767);
+    uLCD.printf("\nSound:   Duration:\n");
+    if(isSoundOn) {
+        uLCD.printf("[On]       [%.0f]", gameDuration);
+    } else {
+        uLCD.printf("[Off]       [%.0f]", gameDuration);
+    }
+    m.unlock();
+}
+//draw static song selection screen
+void drawSetMusic() {
+    m.lock();
+   
+    uLCD.cls();
+   
+    uLCD.color(6730495);
+    uLCD.text_height(2);
+    uLCD.printf("  Song Selection  \n");
+   
+    uLCD.text_height(1);
+    uLCD.printf("\n0. Back\n");
+    uLCD.printf("\n1. No Music\n");
+    uLCD.printf("\n2. Sound of Music\n");
+    uLCD.printf("\n3. 3 Blind Mice\n");
+    uLCD.printf("\n4. Fly Me to the     Moon\n");
+    uLCD.printf("\n5. Half Step Scale\n");
+    m.unlock();
+}
+//draw static set duration screen
+void drawSetDuration() {
+    m.lock();
+   
+    uLCD.cls();
+   
+    uLCD.color(6736896);
+    uLCD.text_height(2);
+    uLCD.printf("  Game Duration  \n");
+   
+    uLCD.text_height(1);
+    uLCD.printf("\n\n0. Back\n");
+    uLCD.printf("\n1. 15 seconds\n");
+    uLCD.printf("\n2. 30 seconds\n");
+    uLCD.printf("\n3. 45 seconds\n");
+    uLCD.printf("\n4. 60 seocnds\n");
+    uLCD.printf("\n5. 120 seconds\n");
+    m.unlock();
+}
+//draw highscores screen
+void drawHighScores() {
+    m.lock();
+    uLCD.cls();
+    uLCD.color(16751001);
+    uLCD.text_height(2);
+    uLCD.printf("    High Scores   \n");
+    uLCD.text_height(1);
+    uLCD.printf("\n0. Back\n");
+    uLCD.printf("\n1. Toggle Duration\n");
+    uLCD.text_height(2);
+    std::list<int>::iterator it;
+    if (highScoreToggle == 0) {
+        uLCD.printf("    15 Seconds:   \n");
+        uLCD.locate(0,5);
+        for (it=hs15.begin(); it!=hs15.end(); ++it) {
+            printf("%d, ", *it);
+            uLCD.printf("%d, ", *it);
+        }
+    } else if (highScoreToggle == 1) {
+        uLCD.printf("    30 Seconds:   \n");
+        uLCD.locate(0,5);
+        for (it=hs30.begin(); it!=hs30.end(); ++it) {
+            printf("%d, ", *it);
+            uLCD.printf("%d, ", *it);
+        }
+    } else if (highScoreToggle == 2) {
+        uLCD.printf("    45 Seconds:   \n");
+        uLCD.locate(0,5);
+        for (it=hs45.begin(); it!=hs45.end(); ++it) {
+            printf("%d, ", *it);
+            uLCD.printf("%d, ", *it);
+        }
+    } else if (highScoreToggle == 3) {
+        uLCD.printf("    60 Seconds:   \n");
+        uLCD.locate(0,5);
+        for (it=hs60.begin(); it!=hs60.end(); ++it) {
+            printf("%d, ", *it);
+            uLCD.printf("%d, ", *it);
+        }
+    } else if (highScoreToggle == 4) {
+        uLCD.printf("    120 Seconds:   \n");
+        uLCD.locate(0,5);
+        for (it=hs120.begin(); it!=hs120.end(); ++it) {
+            printf("%d, ", *it);
+            uLCD.printf("%d, ", *it);
+        }
+    }
+    printf("\n");
+    m.unlock();
+}
+//thread called in main to continuously update game timer 
+void gameTimer() {
+    t.reset();
+    t.start();
+    while(1) {
+        //The game duration is reached and the game is over
+        if (t.read() >= gameDuration) {
+            speaker.off();
+            state = GAME_OVER;
+            drawGameOver();
+            gameTimerThread.terminate();
+            playSoundThread.terminate();
+        } 
+        m.lock();
+        uLCD.locate(12, 2);
+        uLCD.printf(" %.0f  ", gameDuration - t.read());
+        m.unlock();
+        Thread::wait(100);
+    }
+}
+//Thread called in main to play sound
+void playSound() {
+    int prevScoreCount = 0;
+    Timer s;
+    while(1) {
+        //means correct key has been pressed and next note should play
+        if (prevScoreCount != scoreCount) {
+            if (soundToggle == 0)
+                speaker.playNote(soundOfMusic[(scoreCount-1) % 59]);
+            else if (soundToggle == 1)
+                speaker.playNote(threeBlindMice[(scoreCount-1) % 40]);
+            else if (soundToggle == 2)
+                speaker.playNote(flyMeToTheMoon[(scoreCount-1) % 42]);
+            else if (soundToggle == 3)
+                speaker.playNote(halfStepScale[(scoreCount-1) % 26]);
+            s.reset();
+            s.start();
+            prevScoreCount = scoreCount;
+        }
+        //only allow each note to play a max of 0.3 seconds
+        else if (s.read() > 0.3) {
+            speaker.off();
+            s.stop();
+        }
+        Thread::wait(100);
+    }
+}
+
+//function called inside updateHighScoreArrays to update SD card
+//dur specifies which duration's highscores have been updated
+void updateHighScoreSD(int dur) {
+    //mkdir("/sd/PianoTileRacer", 0777);
+    std::list<int>::iterator iterator;
+    if (dur == 15) { 
+        FILE *fp = fopen("/sd/PianoTileRacer/highScores15.txt", "w");
+        if(fp == NULL) {
+            error("Could not open file for write\n");
+        }
+        for (iterator = hs15.begin(); iterator != hs15.end(); ++iterator) {
+            fprintf(fp, "%d ", *iterator);
+        }
+        fclose(fp); 
+        return;
+    } else if (dur == 30) {
+        FILE *fp = fopen("/sd/PianoTileRacer/highScores30.txt", "w");
+        if(fp == NULL) {
+            error("Could not open file for write\n");
+        }
+        for (iterator = hs30.begin(); iterator != hs30.end(); ++iterator) {
+            fprintf(fp, "%d ", *iterator);
+        }
+        fclose(fp); 
+        return;
+    } else if (dur == 45) {
+        FILE *fp = fopen("/sd/PianoTileRacer/highScores45.txt", "w");
+        if(fp == NULL) {
+            error("Could not open file for write\n");
+        }
+        for (iterator = hs45.begin(); iterator != hs45.end(); ++iterator) {
+            fprintf(fp, "%d ", *iterator);
+        }
+        fclose(fp); 
+        return;
+    } else if (dur == 60) {
+        FILE *fp = fopen("/sd/PianoTileRacer/highScores60.txt", "w");
+        if(fp == NULL) {
+            error("Could not open file for write\n");
+        }
+        for (iterator = hs60.begin(); iterator != hs60.end(); ++iterator) {
+            fprintf(fp, "%d ", *iterator);
+        }
+        fclose(fp); 
+        return;
+    } else if (dur == 120) {
+        FILE *fp = fopen("/sd/PianoTileRacer/highScores120.txt", "w");
+        if(fp == NULL) {
+            error("Could not open file for write\n");
+        }
+        for (iterator = hs120.begin(); iterator != hs120.end(); ++iterator) {
+            fprintf(fp, "%d ", *iterator);
+        }
+        fclose(fp); 
+        return;
+    } 
+}
+
+//update highscores to arrays 
+void updateHighScoreArrays(int score) {
+    std::list<int>::iterator iterator;
+    if (gameDuration == 15.0) {
+        //empty list case
+        if (hs15.empty()) {
+            hs15.push_front(score);
+            updateHighScoreSD(15);
+            return;
+        }
+        //insert somewhere in the middle case
+        for (iterator = hs15.begin(); iterator != hs15.end(); ++iterator) {
+            if(score > *iterator) {
+                hs15.insert(iterator, score);
+                //make sure list is a max size of 5
+                if (hs15.size() > 5) {
+                    hs15.pop_back();
+                }
+                updateHighScoreSD(15);
+                return;
+            }
+        }
+        //insert at the end of list case
+        if (hs15.size() < 5) {
+            hs15.push_back(score);
+            updateHighScoreSD(15);
+        }
+        return;
+    } else if (gameDuration == 30.0) {
+        //empty list case
+        if (hs30.empty()) {
+            hs30.push_front(score);
+            updateHighScoreSD(30);
+            return;
+        }
+        //insert somewhere in the middle case
+        for (iterator = hs30.begin(); iterator != hs30.end(); ++iterator) {
+            if(score > *iterator) {
+                hs30.insert(iterator, score);
+                //make sure list is a max size of 5
+                if (hs30.size() > 5) {
+                    hs30.pop_back();
+                }
+                updateHighScoreSD(30);
+                return;
+            }
+        }
+        //insert at the end of list case
+        if (hs30.size() < 5) {
+            hs30.push_back(score);
+            updateHighScoreSD(30);
+        }
+        return;
+    } else if (gameDuration == 45.0) {
+        //empty list case
+        if (hs45.empty()) {
+            hs45.push_front(score);
+            updateHighScoreSD(45);
+            return;
+        }
+        //insert somewhere in the middle case
+        for (iterator = hs45.begin(); iterator != hs45.end(); ++iterator) {
+            if(score > *iterator) {
+                hs45.insert(iterator, score);
+                //make sure list is a max size of 5
+                if (hs45.size() > 5) {
+                    hs45.pop_back();
+                }
+                updateHighScoreSD(45);
+                return;
+            }
+        }
+        //insert at the end of list case
+        if (hs45.size() < 5) {
+            hs45.push_back(score);
+            updateHighScoreSD(45);
+        }
+        return;
+    } else if (gameDuration == 60.0) {
+        //empty list case
+        if (hs60.empty()) {
+            hs60.push_front(score);
+            updateHighScoreSD(60);
+            return;
+        }
+        //insert somewhere in the middle case
+        for (iterator = hs60.begin(); iterator != hs60.end(); ++iterator) {
+            if(score > *iterator) {
+                hs60.insert(iterator, score);
+                //make sure list is a max size of 5
+                if (hs60.size() > 5) {
+                    hs60.pop_back();
+                }
+                updateHighScoreSD(60);
+                return;
+            }
+        }
+        //insert at the end of list case
+        if (hs60.size() < 5) {
+            hs60.push_back(score);
+            updateHighScoreSD(60);
+        }
+        return;
+    } else if (gameDuration == 120.0) {
+        //empty list case
+        if (hs120.empty()) {
+            hs120.push_front(score);
+            updateHighScoreSD(120);
+            return;
+        }
+        //insert somewhere in the middle case
+        for (iterator = hs120.begin(); iterator != hs120.end(); ++iterator) {
+            if(score > *iterator) {
+                hs120.insert(iterator, score);
+                //make sure list is a max size of 5
+                if (hs120.size() > 5) {
+                    hs120.pop_back();
+                }
+                updateHighScoreSD(120);
+                return;
+            }
+        }
+        //insert at the end of list case
+        if (hs120.size() < 5) {
+            hs120.push_back(score);
+            updateHighScoreSD(120);
+        }
+        return;
+    } 
+}
+
+//reads in highscores to the arrays. This is only called once in the very beginning of main
+void readInHighScores() {
+    int tempScore;
+    char c;
+    std::string scoreStr = "";
+    //15 second highscores
+    FILE *fp = fopen("/sd/PianoTileRacer/highScores15.txt", "r");
+    if(fp == NULL) {
+        error("Could not open file for read 15\n");
+    }
+    while (!feof(fp)){                        // while not end of file
+        c = fgetc(fp);
+        if (c != ' ') {
+            scoreStr = scoreStr + c;
+        } else {
+            stringstream ss(scoreStr);
+            ss >> tempScore;
+            hs15.push_back(tempScore);
+            scoreStr = "";
+        }
+    }
+    fclose(fp);
+    //30 second highscores
+    tempScore = -1;
+    c = NULL;
+    scoreStr = "";
+    fp = fopen("/sd/PianoTileRacer/highScores30.txt", "r");
+    if(fp == NULL) {
+        error("Could not open file for read 30\n");
+    }
+    while (!feof(fp)){                        // while not end of file
+        c = fgetc(fp);
+        if (c != ' ') {
+            scoreStr = scoreStr + c;
+        } else {
+            stringstream ss(scoreStr);
+            ss >> tempScore;
+            hs30.push_back(tempScore);
+            scoreStr = "";
+        }
+    }
+    fclose(fp);
+    //45 second highscores
+    tempScore = -1;
+    c = NULL;
+    scoreStr = "";
+    fp = fopen("/sd/PianoTileRacer/highScores45.txt", "r");
+    if(fp == NULL) {
+        error("Could not open file for read 45\n");
+    }
+    while (!feof(fp)){                        // while not end of file
+        c = fgetc(fp);
+        if (c != ' ') {
+            scoreStr = scoreStr + c;
+        } else {
+            stringstream ss(scoreStr);
+            ss >> tempScore;
+            hs45.push_back(tempScore);
+            scoreStr = "";
+        }
+    }
+    fclose(fp);
+    //60 second highscores
+    tempScore = -1;
+    c = NULL;
+    scoreStr = "";
+    fp = fopen("/sd/PianoTileRacer/highScores60.txt", "r");
+    if(fp == NULL) {
+        error("Could not open file for read 60\n");
+    }
+    while (!feof(fp)){                        // while not end of file
+        c = fgetc(fp);
+        if (c != ' ') {
+            scoreStr = scoreStr + c;
+        } else {
+            stringstream ss(scoreStr);
+            ss >> tempScore;
+            hs60.push_back(tempScore);
+            scoreStr = "";
+        }
+    }
+    fclose(fp);
+    //120 second highscores
+    tempScore = -1;
+    c = NULL;
+    scoreStr = "";
+    fp = fopen("/sd/PianoTileRacer/highScores120.txt", "r");
+    if(fp == NULL) {
+        error("Could not open file for read 120\n");
+    }
+    while (!feof(fp)){                        // while not end of file
+        c = fgetc(fp);
+        if (c != ' ') {
+            scoreStr = scoreStr + c;
+        } else {
+            stringstream ss(scoreStr);
+            ss >> tempScore;
+            hs120.push_back(tempScore);
+            scoreStr = "";
+        }
+    }
+    fclose(fp); 
+    m.unlock();
+}
+ 
+//function called upon touchpad press
+//this function is responsible for managing backend updates and calling the correct draw functions
+//returning 1 means the actual game is starting and starts the game timer thread
+int updateGameInfo() {
+    //playing game state
+    if(state == PLAYING_GAME) {
+        //if the right key is pressed
+        if (keyPressed == tileRow0) {
+            //increase score count
+            m.lock();
+            scoreCount++;
+            m.unlock();
+            //shift down the rows and generate a new row
+            tileRow0 = tileRow1;
+            tileRow1 = tileRow2;
+            tileRow2 = tileRow3;
+            tileRow3 = rand() % 4;
+            drawPlayingGame();
+            return 0;
+        } else { //if the wrong key is pressed
+            speaker.off();
+            state = GAME_OVER;
+            gameTimerThread.terminate();
+            playSoundThread.terminate();
+            drawGameOver();
+            return 0;
+        }
+    }
+    //game over state, keypress 4 returns to menu and writes highscores to arrays and SD card
+    else if (state == GAME_OVER && keyPressed == 4) {
+        updateHighScoreArrays(scoreCount);
+        state = MENU;
+        drawMenu();
+        return 0;
+    } 
+    //menu state
+    else if (state == MENU) {
+        if (keyPressed == 0){
+            //initialize tile rows
+            srand (time(NULL));
+            tileRow0 = rand() % 4;
+            tileRow1 = rand() % 4;
+            tileRow2 = rand() % 4;
+            tileRow3 = rand() % 4;
+            scoreCount = 0;
+            state = PLAYING_GAME;
+            drawInitGame();
+            return 1;
+        } else if (keyPressed == 1) {
+            state = SET_MUSIC;
+            drawSetMusic();
+            return 0;
+        } else if (keyPressed == 2) {
+            state = SET_DURATION;
+            drawSetDuration();
+            return 0;   
+        } else if (keyPressed == 3) {
+            state = HIGH_SCORES;
+            drawHighScores();
+            return 0;
+        } else if (keyPressed == 11) {
+            readInHighScores();
+            drawMenu();   
+            return 0;
+        } 
+    } 
+    //changing music screen
+    else if (state == SET_MUSIC) {
+        if (keyPressed == 1) {
+            isSoundOn = false;
+        } else if (keyPressed == 2) {
+            isSoundOn = true;
+            soundToggle = 0;
+        } else if (keyPressed == 3) {
+            isSoundOn = true;
+            soundToggle = 1;
+        } else if (keyPressed == 4) {
+            isSoundOn = true;
+            soundToggle = 2;
+        } else if (keyPressed == 5) {
+            isSoundOn = true;
+            soundToggle = 3;
+        }
+        state = MENU;
+        drawMenu();
+        return 0;
+    } 
+    //changing duration screen
+    else if (state == SET_DURATION) {
+        if (keyPressed == 1) {
+            gameDuration = 15.0;
+        } else if (keyPressed == 2) {
+            gameDuration = 30.0;
+        } else if (keyPressed == 3) {
+            gameDuration = 45.0;
+        } else if (keyPressed == 4) {
+            gameDuration = 60.0;
+        } else if (keyPressed == 5) {
+            gameDuration = 120.0;
+        } 
+        state = MENU;
+        drawMenu();
+        return 0;
+    } 
+    //viewing highscores screen
+    else if (state == HIGH_SCORES) {
+        if (keyPressed == 0) {
+            highScoreToggle = 0;
+            state = MENU;
+            drawMenu();
+            return 0;
+        } else if (keyPressed == 1) {
+            highScoreToggle = (highScoreToggle + 1) % 5;
+            drawHighScores();
+            return 0;
+        }
+    }
+    return 0;
+}
+ 
+// Key hit/release interrupt routine
+void fallInterrupt() {
+    key_code = 0;
+    int i=0;
+    int value=mpr121.read(0x00);
+    value +=mpr121.read(0x01)<<8;
+    // LED demo mod
+    i=0;
+    // puts key number out to LEDs for demo
+    for (i=0; i<12; i++) {
+        if (((value>>i)&0x01)==1) key_code=i+1;
+    }
+    if (key_code != 0) { 
+        updateGame = true;
+    }
+    led4=key_code & 0x01;
+    led3=(key_code>>1) & 0x01;
+    led2=(key_code>>2) & 0x01;
+    led1=(key_code>>3) & 0x01;
+}
+
+int main() {  
+    interrupt.fall(&fallInterrupt);
+    interrupt.mode(PullUp);
+    state = MENU;
+    while (1) {
+        if (updateGame) {
+            keyPressed = key_code - 1;
+            if (updateGameInfo() == 1) {
+                gameTimerThread.start(gameTimer);
+                if(isSoundOn) {
+                    playSoundThread.start(playSound);
+                    //playSoundThread.set_priority(osPriorityHigh);
+                }
+            }
+            updateGame = false;
+        }
+    }
+}

diff -r 000000000000 -r eb011b288325 mbed-rtos.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-rtos.lib	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed-rtos/#58563e6cba1e

diff -r 000000000000 -r eb011b288325 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/0ab6a29f35bf
\ No newline at end of file

diff -r 000000000000 -r eb011b288325 mpr121.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpr121.cpp	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,221 @@
+/*
+Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include <mbed.h>
+#include <sstream>
+#include <string>
+#include <list>
+
+#include <mpr121.h>
+    
+Mpr121::Mpr121(I2C *i2c, Address i2cAddress)
+{
+    this->i2c = i2c;
+    
+    address = i2cAddress;
+           
+    // Configure the MPR121 settings to default
+    this->configureSettings();
+}
+
+   
+void Mpr121::configureSettings()
+{
+    // Put the MPR into setup mode
+    this->write(ELE_CFG,0x00);
+    
+    // Electrode filters for when data is > baseline
+    unsigned char gtBaseline[] = {
+         0x01,  //MHD_R
+         0x01,  //NHD_R 
+         0x00,  //NCL_R
+         0x00   //FDL_R
+         };
+         
+    writeMany(MHD_R,gtBaseline,4);   
+                 
+     // Electrode filters for when data is < baseline   
+     unsigned char ltBaseline[] = {
+        0x01,   //MHD_F
+        0x01,   //NHD_F
+        0xFF,   //NCL_F
+        0x02    //FDL_F
+        };
+        
+    writeMany(MHD_F,ltBaseline,4);
+        
+    // Electrode touch and release thresholds
+    unsigned char electrodeThresholds[] = {
+        E_THR_T, // Touch Threshhold
+        E_THR_R  // Release Threshold
+        };
+
+    for(int i=0; i<12; i++){
+        int result = writeMany((ELE0_T+(i*2)),electrodeThresholds,2);
+    }   
+
+    // Proximity Settings
+    unsigned char proximitySettings[] = {
+        0xff,   //MHD_Prox_R
+        0xff,   //NHD_Prox_R
+        0x00,   //NCL_Prox_R
+        0x00,   //FDL_Prox_R
+        0x01,   //MHD_Prox_F
+        0x01,   //NHD_Prox_F
+        0xFF,   //NCL_Prox_F
+        0xff,   //FDL_Prox_F
+        0x00,   //NHD_Prox_T
+        0x00,   //NCL_Prox_T
+        0x00    //NFD_Prox_T
+        };
+    writeMany(MHDPROXR,proximitySettings,11);
+
+    unsigned char proxThresh[] = {
+        PROX_THR_T, // Touch Threshold
+        PROX_THR_R  // Release Threshold
+        };
+    writeMany(EPROXTTH,proxThresh,2); 
+       
+    this->write(FIL_CFG,0x04);
+    
+    // Set the electrode config to transition to active mode
+    this->write(ELE_CFG,0x0c);
+}
+
+void Mpr121::setElectrodeThreshold(int electrode, unsigned char touch, unsigned char release){
+    
+    if(electrode > 11) return;
+    
+    // Get the current mode
+    unsigned char mode = this->read(ELE_CFG);
+    
+    // Put the MPR into setup mode
+    this->write(ELE_CFG,0x00);
+    
+    // Write the new threshold
+    this->write((ELE0_T+(electrode*2)), touch);
+    this->write((ELE0_T+(electrode*2)+1), release);
+    
+    //Restore the operating mode
+    this->write(ELE_CFG, mode);
+}
+    
+    
+unsigned char Mpr121::read(int key){
+
+    unsigned char data[2];
+    
+    //Start the command
+    i2c->start();
+
+    // Address the target (Write mode)
+    int ack1= i2c->write(address);
+
+    // Set the register key to read
+    int ack2 = i2c->write(key);
+
+    // Re-start for read of data
+    i2c->start();
+
+    // Re-send the target address in read mode
+    int ack3 = i2c->write(address+1);
+
+    // Read in the result
+    data[0] = i2c->read(0); 
+
+    // Reset the bus        
+    i2c->stop();
+
+    return data[0];
+}
+
+
+int Mpr121::write(int key, unsigned char value){
+    
+    //Start the command
+    i2c->start();
+
+    // Address the target (Write mode)
+    int ack1= i2c->write(address);
+
+    // Set the register key to write
+    int ack2 = i2c->write(key);
+
+    // Read in the result
+    int ack3 = i2c->write(value); 
+
+    // Reset the bus        
+    i2c->stop();
+    
+    return (ack1+ack2+ack3)-3;
+}
+
+
+int Mpr121::writeMany(int start, unsigned char* dataSet, int length){
+    //Start the command
+    i2c->start();
+
+    // Address the target (Write mode)
+    int ack= i2c->write(address);
+    if(ack!=1){
+        return -1;
+    }
+    
+    // Set the register key to write
+    ack = i2c->write(start);
+    if(ack!=1){
+        return -1;
+    }
+
+    // Write the date set
+    int count = 0;
+    while(ack==1 && (count < length)){
+        ack = i2c->write(dataSet[count]);
+        count++;
+    } 
+    // Stop the cmd
+    i2c->stop();
+    
+    return count;
+}
+      
+
+bool Mpr121::getProximityMode(){
+    if(this->read(ELE_CFG) > 0x0c)
+        return true;
+    else
+        return false;
+}
+
+void Mpr121::setProximityMode(bool mode){
+    this->write(ELE_CFG,0x00);
+    if(mode){
+        this->write(ELE_CFG,0x30); //Sense proximity from ALL pads
+    } else {
+        this->write(ELE_CFG,0x0c); //Sense touch, all 12 pads active.
+    }
+}
+
+
+int Mpr121::readTouchData(){
+    return this->read(0x00);
+}
\ No newline at end of file

diff -r 000000000000 -r eb011b288325 mpr121.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpr121.h	Tue May 04 20:38:25 2021 +0000
@@ -0,0 +1,157 @@
+/*
+Copyright (c) 2011 Anthony Buckton (abuckton [at] blackink [dot} net {dot} au)
+
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+   Parts written by Jim Lindblom of Sparkfun
+   Ported to mbed by A.Buckton, Feb 2011
+*/
+
+#ifndef MPR121_H
+#define MPR121_H
+
+//using namespace std;
+
+class Mpr121 
+{
+
+public:
+    // i2c Addresses, bit-shifted
+    enum Address { ADD_VSS = 0xb4,// ADD->VSS = 0x5a <-wiring on Sparkfun board
+                   ADD_VDD = 0xb6,// ADD->VDD = 0x5b
+                   ADD_SCL = 0xb8,// ADD->SDA = 0x5c
+                   ADD_SDA = 0xba // ADD->SCL = 0x5d
+                 };
+
+    // Real initialiser, takes the i2c address of the device.
+    Mpr121(I2C *i2c, Address i2cAddress);
+    
+    bool getProximityMode();
+    
+    void setProximityMode(bool mode);
+    
+    int readTouchData();
+               
+    unsigned char read(int key);
+    
+    int write(int address, unsigned char value);
+    int writeMany(int start, unsigned char* dataSet, int length);
+
+    void setElectrodeThreshold(int electrodeId, unsigned char touchThreshold, unsigned char releaseThreshold);
+        
+protected:
+    // Configures the MPR with standard settings. This is permitted to be overwritten by sub-classes.
+    void configureSettings();
+    
+private:
+    // The I2C bus instance.
+    I2C *i2c;
+
+    // i2c address of this mpr121
+    Address address;
+};
+
+
+// MPR121 Register Defines
+#define    MHD_R        0x2B
+#define    NHD_R        0x2C
+#define    NCL_R        0x2D
+#define    FDL_R        0x2E
+#define    MHD_F        0x2F
+#define    NHD_F        0x30
+#define    NCL_F        0x31
+#define    FDL_F        0x32
+#define    NHDT         0x33
+#define    NCLT         0x34
+#define    FDLT         0x35
+// Proximity sensing controls
+#define    MHDPROXR     0x36
+#define    NHDPROXR     0x37
+#define    NCLPROXR     0x38
+#define    FDLPROXR     0x39
+#define    MHDPROXF     0x3A
+#define    NHDPROXF     0x3B
+#define    NCLPROXF     0x3C
+#define    FDLPROXF     0x3D
+#define    NHDPROXT     0x3E
+#define    NCLPROXT     0x3F
+#define    FDLPROXT     0x40
+// Electrode Touch/Release thresholds
+#define    ELE0_T       0x41
+#define    ELE0_R       0x42
+#define    ELE1_T       0x43
+#define    ELE1_R       0x44
+#define    ELE2_T       0x45
+#define    ELE2_R       0x46
+#define    ELE3_T       0x47
+#define    ELE3_R       0x48
+#define    ELE4_T       0x49
+#define    ELE4_R       0x4A
+#define    ELE5_T       0x4B
+#define    ELE5_R       0x4C
+#define    ELE6_T       0x4D
+#define    ELE6_R       0x4E
+#define    ELE7_T       0x4F
+#define    ELE7_R       0x50
+#define    ELE8_T       0x51
+#define    ELE8_R       0x52
+#define    ELE9_T       0x53
+#define    ELE9_R       0x54
+#define    ELE10_T      0x55
+#define    ELE10_R      0x56
+#define    ELE11_T      0x57
+#define    ELE11_R      0x58
+// Proximity Touch/Release thresholds
+#define    EPROXTTH     0x59
+#define    EPROXRTH     0x5A
+// Debounce configuration
+#define    DEB_CFG      0x5B
+// AFE- Analogue Front End configuration
+#define    AFE_CFG      0x5C 
+// Filter configuration
+#define    FIL_CFG      0x5D
+// Electrode configuration - transistions to "active mode"
+#define    ELE_CFG      0x5E
+
+#define GPIO_CTRL0      0x73
+#define GPIO_CTRL1      0x74
+#define GPIO_DATA       0x75
+#define    GPIO_DIR     0x76
+#define    GPIO_EN      0x77
+#define    GPIO_SET     0x78
+#define GPIO_CLEAR      0x79
+#define GPIO_TOGGLE     0x7A
+// Auto configration registers
+#define    AUTO_CFG_0   0x7B
+#define    AUTO_CFG_U   0x7D
+#define    AUTO_CFG_L   0x7E
+#define    AUTO_CFG_T   0x7F
+
+// Threshold defaults
+// Electrode touch threshold
+#define    E_THR_T      0x0F   
+// Electrode release threshold 
+#define    E_THR_R      0x0A    
+// Prox touch threshold
+#define    PROX_THR_T   0x02
+// Prox release threshold
+#define    PROX_THR_R   0x02
+
+#endif