Implementing the game sounds

The game sounds are implemented with the GameSoundManager class, which uses the Mobile Media API to create a Player object for each sound needed in the game, and then uses these to play the actual sound.

To implement the game sounds:

1. Use the createToneSequencePlayer method to play MIDI files.

       private Player createToneSequencePlayer() throws IOException,
               MediaException {
           Player p = Manager.createPlayer(Manager.TONE_DEVICE_LOCATOR);
           p.realize();
           ToneControl c = (ToneControl) p.getControl("ToneControl");
           c.setSequence(createSequence());
           p.prefetch();
           return p;
       }

2. Use the createSequence method to create the tone sequence played in the game.

       private byte[] createSequence() {
           byte TEMPO = 30; // set tempo to 120 bpm, tempo is formed by multiplying the tempo modifier by 4
           byte volume = 100;
           byte d = 8; // eighth note
           byte C = ToneControl.C4;
           byte D = (byte) (C + 2);
           byte E = (byte) (C + 4);
   
           byte[] sequence = {
               ToneControl.VERSION, 1, // always 1
               ToneControl.TEMPO, TEMPO, // set the tempo
               ToneControl.SET_VOLUME, volume, // Set the new volume
               ToneControl.BLOCK_START, 0, // define block 0
               C, d, D, d, E, d, // define repeatable block of 3 eighth notes
               ToneControl.BLOCK_END, 0, // end block 0
               ToneControl.PLAY_BLOCK, 0, // play block 0
               ToneControl.SILENCE, d, E, d, D, d, C, d, // play some other
               ToneControl.PLAY_BLOCK, 0, // play block 0 again
           };
           return sequence;
       }