File content as of revision 4:577404e4d53f:

#include "mbed.h"
#include "rtos.h"
#include "SDFileSystem.h"
#include "uLCD_4DGL.h"
#include "PinDetect.h"
//code change
Mutex lcd_mut;
//SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card
uLCD_4DGL uLCD(p28,p27,p30); // serial tx, serial rx, reset pin;
//AnalogOut DACout(p18);
//wave_player waver(&DACout);

PinDetect pb_1(p9, PullUp);
PinDetect pb_2(p10, PullUp);
PinDetect pb_3(p11, PullUp);
PinDetect pb_4(p12, PullUp);

#define Main_Menu 0  // the first screen being shown
#define Choose_Difficulty 1 // after hitting start, player chooses difficult
#define Choose_Song 2       // after choosing difficullyt, choose song
#define Start_Game 3      // the game has started
#define Game_Over 4       // the game is done


//colors
#define YELLOW 16709376

//speed based on difficulty
#define Easy 2   
#define Medium 5     
#define Hard 8       


DigitalOut myled1(LED1);
DigitalOut myled2(LED2);
DigitalOut myled3(LED3);
DigitalOut myled4(LED4);

volatile int Game_State = Game_Over;
volatile bool draw_enable = true;
volatile int Speed = Easy; 

FILE *wave_file;

void LCD(void const *args) {
    myled1 = 1;
    while(1) {
         switch (Game_State) {
            case Start_Game :
               if (draw_enable) {
                    lcd_mut.lock();
                        uLCD.cls();
                        uLCD.printf("Start_Game");
                    lcd_mut.unlock();
                }
                break;
            case Game_Over :
               if (draw_enable) {
                    draw_enable = false;
                    lcd_mut.lock();
                        uLCD.cls();
                        uLCD.line(0, 0, 127, 0, RED);
                        uLCD.line(127, 0, 127, 127, BLUE);
                        uLCD.line(127, 127, 0, 127, GREEN);
                        uLCD.line(0, 127, 0, 0, YELLOW);
                        uLCD.text_width(1);
                        uLCD.text_height(2);
                        uLCD.text_string("Game Over",4,0,FONT_8X8, BLUE);
                        
                        uLCD.text_width(1);
                        uLCD.text_height(1);
                        uLCD.text_string("Score:",2,6,FONT_8X8, YELLOW);
                        uLCD.text_string("Hits:",2,8,FONT_8X8, GREEN);
                        uLCD.text_string("Misses:",2,10,FONT_8X8, RED);
                        uLCD.text_height(2);
                        uLCD.text_string("High Score:",2,6,FONT_8X8, WHITE);
                        uLCD.text_height(1);
                        
                    lcd_mut.unlock();
                }
                break;
            case Choose_Song :
               if (draw_enable) {
                    draw_enable = false;
                    lcd_mut.lock();
                        uLCD.cls();
                        uLCD.text_width(1);
                        uLCD.text_height(1);
                        uLCD.locate(1,1);
                        uLCD.color(BLUE);
                        uLCD.text_underline(ON);
                        uLCD.text_string("Choose Song",4,1,FONT_8X8, BLUE);
                        uLCD.text_underline(OFF);
                        uLCD.set_font(FONT_7X8);
                        uLCD.triangle(64, 32,58, 40, 70, 40,  WHITE);
                        uLCD.triangle(64, 92 ,58, 84, 70, 84,  WHITE);
                        uLCD.color(GREEN);
                        uLCD.rectangle(10,44,118, 80, LGREY);
                        uLCD.text_width(2);
                        uLCD.text_height(2);
                        uLCD.text_string("Schools\nOut",1,3,FONT_8X8, GREEN);
                        uLCD.text_width(1);
                        uLCD.text_height(1);
                    lcd_mut.unlock();
                }
                break;
            case Choose_Difficulty :
               if (draw_enable) {
                    draw_enable = false;
                    lcd_mut.lock();
                        uLCD.cls();
                        uLCD.text_width(1.5);
                        uLCD.text_height(1.5);
                        uLCD.locate(1,1);
                        uLCD.color(BLUE);
                        uLCD.text_underline(ON);
                        uLCD.text_string("Choose Difficulty",1,1,FONT_8X8, BLUE);
                        uLCD.text_underline(OFF);
                        uLCD.set_font(FONT_7X8);
                        uLCD.text_width(2);
                        uLCD.text_height(2);
                        uLCD.color(GREEN);
                        uLCD.locate(1,2);
                        uLCD.printf("1|EASY");
                        uLCD.locate(1,4);
                        uLCD.color(YELLOW);
                        
                        uLCD.printf("2|MEDIUM");
                        uLCD.locate(1,6);
                        uLCD.color(RED);
                        uLCD.printf("3|HARD");
                        uLCD.text_width(1);
                        uLCD.text_height(1);
                    lcd_mut.unlock();
                }
                break;
            case Main_Menu :
               if (draw_enable) {
                    draw_enable = false;
                    lcd_mut.lock();
                        uLCD.cls();
                        uLCD.line(0, 0, 127, 0, RED);
                        uLCD.line(127, 0, 127, 127, BLUE);
                        uLCD.line(127, 127, 0, 127, GREEN);
                        uLCD.line(0, 127, 0, 0, YELLOW);
                        uLCD.text_width(2);
                        uLCD.text_height(2);
                        uLCD.locate(2,2);
                        uLCD.color(RED);
                        uLCD.printf("Guitar");
                        uLCD.color(BLUE);
                        uLCD.locate(3,4);
                        uLCD.printf("Hero");
                        
                        uLCD.text_width(1);
                        uLCD.text_height(1);
                        uLCD.locate(3,12);
                        uLCD.color(GREEN);
                        uLCD.printf("Press to start");
                        
                    lcd_mut.unlock();
                }
                break;
            default:
                break;
        } 
        Thread::wait(10);   
    }  
}
void lights(void const *args) {
    while(1) {
        switch (Game_State) {
            case Start_Game :
                myled1 = 0;
                myled2 = 0;
                myled3 = 0;
                myled4 = 1;
                break;
            case Game_Over :
               myled1 = 1;
                myled2 = 1;
                myled3 = 1;
                myled4 = 1;
                break;
            case Choose_Song :
                myled1 = 0;
                myled2 = 0;
                myled3 = 1;
                myled4 = 0;
                break;
            case Choose_Difficulty :
               
                myled1 = 0;
                myled2 = 1;
                myled3 = 0;
                myled4 = 0;
                    
                
                break;
            case Main_Menu :
               
                myled1 = 1;
                myled2 = 0;
                myled3 = 0;
                myled4 = 0;
                
                break;
            default:
                break;
        } 
        Thread::wait(500);
    }    
}

void Thread3(void const *args) {
   
    while(1) {
        Thread::wait(1000);
    }

}

void Thread4(void const *args) {
   
    while(1){
        Thread::wait(1000);
    }
        
}

void pb_1_pressed(void) {
    switch (Game_State) {
            case Start_Game :
                draw_enable = true;
                Game_State = Game_Over;
                break;
            case Game_Over :
               draw_enable = true;
                Game_State = Main_Menu;
                break;
            case Choose_Song :
                draw_enable = true;
                Game_State = Start_Game;
                break;
            case Choose_Difficulty :
               
                draw_enable = true;
                Game_State = Choose_Song;
                Speed = Easy;    
                
                break;
            case Main_Menu :
               
                draw_enable = true;
                Game_State = Choose_Difficulty;
                
                break;
            default:
                break;
        } 
}
void pb_2_pressed(void) {
        switch (Game_State) {
            case Start_Game :
                draw_enable = true;
                Game_State = Game_Over;
                break;
            case Game_Over :
               draw_enable = true;
                Game_State = Main_Menu;
                break;
            case Choose_Song :
                draw_enable = true;
                Game_State = Start_Game;
                break;
            case Choose_Difficulty :
               
                draw_enable = true;
                Game_State = Choose_Song;
                Speed = Medium;
                break;
            case Main_Menu :
               
                draw_enable = true;
                Game_State = Choose_Difficulty;
                
                break;
            default:
                break;
        } 
        
}
void pb_3_pressed(void) {
        switch (Game_State) {
            case Start_Game :
                draw_enable = true;
                Game_State = Game_Over;
                break;
            case Game_Over :
               draw_enable = true;
                Game_State = Main_Menu;
                break;
            case Choose_Song :
                draw_enable = true;
                Game_State = Start_Game;
                break;
            case Choose_Difficulty :
               
                draw_enable = true;
                Game_State = Choose_Song;
                Speed = Hard;
                
                break;
            case Main_Menu :
               
                draw_enable = true;
                Game_State = Choose_Difficulty;
                
                break;
            default:
                break;
        } 
}
void pb_4_pressed(void) {
        switch (Game_State) {
            case Start_Game :
                draw_enable = true;
                Game_State = Game_Over;
                break;
            case Game_Over :
               draw_enable = true;
                Game_State = Main_Menu;
                break;
            case Choose_Song :
                draw_enable = true;
                Game_State = Start_Game;
                break;
            case Choose_Difficulty :
                //not used
                break;
            case Main_Menu :
               
                draw_enable = true;
                Game_State = Choose_Difficulty;
                
                break;
            default:
                break;
        } 
}
        
int main()
{
    
    pb_1.attach_deasserted( &pb_1_pressed );
    pb_2.attach_deasserted( &pb_2_pressed );
    pb_3.attach_deasserted( &pb_3_pressed );
    pb_4.attach_deasserted( &pb_4_pressed );
    pb_1.setSampleFrequency();
    pb_2.setSampleFrequency();
    pb_3.setSampleFrequency();
    pb_4.setSampleFrequency();
    lcd_mut.lock();
    uLCD.cls();
    uLCD.printf("starting...");
    uLCD.background_color(BLACK);
    uLCD.baudrate(3000000);
    lcd_mut.unlock();
    Thread::wait(1000);
    Thread Thread1(LCD);
    Thread Thread2(lights);

    
    while(1) {
        Thread::wait(1000);
    }
    
}