File content as of revision 0:3951c8490b9e:

#include "mbed.h"
#include "music.h"

float fu = 2;
float ha = fu/2;
float qu = ha/2;
float tq = fu*3/4;
float ei = fu/8;
float si = fu/16;

char nyanNotes[] = {  Eb5,E5,Fs5,Bb5,E5,Eb5,E5,Fs5,B5,Eb6,E6,Eb6,Bb5,B5,Fs5,Eb5,E5,Fs5,B5,Cs6,Bb5,B5,Cs6,E6,Eb6,E6,Cs6,
                       Fs5,Gs5,D5,Eb5,Cs5,Eb5,Cs5,B4,B4,Cs5,D5,D5,Cs5,B4,Cs5,Eb5,Fs5,Gs5,Eb5,Fs5,Cs5,Eb5,B4,Cs5,B4,
                       Eb5,Fs5,Gs5,Eb5,Fs5,Cs5,Eb5,B4,D5,Eb5,D5,Cs5,B4,Cs5,Eb5,B4,Cs5,Eb5,Fs5,Cs5,D5,Cs5,D5,Cs5,B4,Cs5,Fs5,Gs5,D5,Eb5,Cs5,Eb5,Cs5,B4,B4,Cs5,
                       D5,D5,Cs5,B4,Cs5,Eb5,Fs5,Gs5,Eb5,Fs5,Cs5,Eb5,B4,Cs5,B4,Eb5,Fs5,Gs5,Eb5,Gs5,Cs5,Eb5,B4,D5,E5,D5,Cs5,B4,Cs5,
                       Eb5,B4,Cs5,Eb5,Fs5,Cs5,D5,Cs5,D5,Cs5,B4,B4,B4,Fs4,Gs4,B4,Fs4,Gs4,B4,Cs5,Eb5,Cs5,E5,Eb5,E5,Fs5,
                       B4,B4,Fs4,Gs4,B4,Fs4,E5,Eb5,Cs5,B4,E4,Eb4,E4,Fs4,B4,Fs4,Gs4,B4,Fs4,Gs4,B4,B4,Cs5,Eb5,B4,Fs4,Gs4,Fs4,
                       B4,B4,Bb4,B4,Fs4,Gs4,B4,E5,Eb5,E5,Fs5,Eb5,Cs5,B4,Fs4,Gs4,B4,Fs4,Gs4,B4,Cs5,Eb5,Cs5,E5,Eb5,E5,Fs5,
                       B4,B4,Fs4,Gs4,B4,Fs4,E5,Eb5,Cs5,B4,E4,Eb4,E4,Fs4,B4,Fs4,Gs4,B4,Fs4,Gs4,B4,B4,Cs5,Eb5,B4,Fs4,Gs4,Fs4,
                       B4,B4,Bb4,B4,Fs4,Gs4,B4,E5,Eb5,E5,Fs5,B4,B4
                    };
float nyanBeat[]= { si,si,ei,si,si,si,si,si,si,si,si,si,si,ei,ei,si,si,ei,si,si,si,si,si,si,si,si,ei,
                   ei,ei,si,ei,si,si,si,ei,ei,ei,ei,si,si,si,si,si,si,si,si,si,si,si,si,si,si,
                   ei,ei,si,si,si,si,si,si,si,si,si,si,si,si,ei,si,si,si,si,si,si,si,si,ei,ei,ei,ei,ei,si,ei,si,si,si,ei,ei,ei,
                   ei,si,si,si,si,si,si,si,si,si,si,si,si,si,si,ei,ei,si,si,si,si,si,si,si,si,si,si,si,si,
                   ei,si,si,si,si,si,si,si,si,ei,ei,ei,ei,si,si,ei,si,si,si,si,si,si,si,si,si,si,
                   ei,ei,si,si,si,si,si,si,si,si,si,si,si,si,ei,si,si,ei,si,si,si,si,si,si,si,si,si,si,
                   ei,si,si,si,si,si,si,si,si,si,si,ei,ei,ei,si,si,ei,si,si,si,si,si,si,si,si,si,si,
                   ei,ei,si,si,si,si,si,si,si,si,si,si,si,si,ei,si,si,ei,si,si,si,si,si,si,si,si,si,si,
                   ei,si,si,si,si,si,si,si,si,si,si,si,si
                  };//beat array


//float song[];
//float beat[];

//float alive_1[];
//float alive_2[];

PwmOut spkr(p26);
DigitalIn fire(p14);
DigitalIn up(p15);
DigitalIn down(p12);
DigitalIn left(p13);
I2C i2c(p9, p10);

const unsigned char addr = 0x42;
const unsigned char read = 0x01;


int main() {
    i2c.frequency(1000); // 1kHz 
    while(1) 
    {
     /*   
        if(up)
        {
            // both play master's song 
            
            unsigned char freq;
            float note;
            
            for(int i = 0; i < sizeof(song) / sizeof(float); i++)
            {
                freq = song[i];
                note = notes[freq];
                
                i2c.start();
                i2c.write(addr);
                i2c.write(freq);
                i2c.stop();
                
                spkr.period(1/note);
                spkr = 0.5f;
                wait(beat[i]);
            }
            
            i2c.start();
            i2c.write(addr);
            i2c.write(0xFF); // end song code
            i2c.stop();
            
            spkr = 0;
            
        }
        
        if(down)
        {
            // both play slave's song
            int prev = -1;
            freq = 0;
            
            i2c.start();
            i2c.write(addr | read);
            
            while(freq != 0xFF)
            {
                freq = i2c.read(addr);
                if(freq != prev) {
                       note = notes[freq];
                       spkr.period(1/note);
                       spkr = 0.5f;
                }   
                prev = freg;
            }
            
            i2c.stop();
            spkr = 0;
        }
        
        if(fire)
        {
            // secret special sauce
            unsigned char freq;
            float note;
            
            for(int i = 0; i < sizeof(...); i++)
            {
                // play
                freq = alive_1[i];
                note = notes[freq];
                
                spkr.period(1/freq);
                spkr = 0.5f;
                
                // send
                freq = alive_2[i];
                note = notes[freq];
                
                i2c.start();
                i2c.write(addr);
                i2c.write(freq);
                i2c.stop();
                
                wait(beat[i]);
            }
            
            i2c.start();
            i2c.write(addr);
            i2c.write(0xFF);
            i2c.stop();
            
            spkr = 0;   
        }*/
        
        if(left)
        {
               char freq;
               float note;
               for(int i = 0; i < sizeof(nyanNotes) / sizeof(nyanNotes[0]); i++)
               {
                    freq = nyanNotes[i];
                    note = notes[freq];
                    spkr.period( 1 / note);
                    spkr = .5; 
                    wait(nyanBeat[i]);  
               }
               spkr = 0;
        }
    }
}