BRandon Foley / Two mbed Agario

simple game using 2 mbed devices

Dependencies:   4DGL-uLCD-SE mbed-rtos mbed LSM9DS0

player2/SongPlayer.h@0:8016d44e8294, 2015-10-20 (annotated)

Committer:
bfoley13
Date:
Tue Oct 20 20:04:10 2015 +0000
Revision:
0:8016d44e8294
Project

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bfoley13 0:8016d44e8294 1 //#include "mbed.h"
bfoley13 0:8016d44e8294 2 // new class to play a note on Speaker based on PwmOut class
bfoley13 0:8016d44e8294 3 class SongPlayer
bfoley13 0:8016d44e8294 4 {
bfoley13 0:8016d44e8294 5 public:
bfoley13 0:8016d44e8294 6 SongPlayer(PinName pin) : _pin(pin) {
bfoley13 0:8016d44e8294 7 // _pin(pin) means pass pin to the constructor
bfoley13 0:8016d44e8294 8 }
bfoley13 0:8016d44e8294 9 // class method to play a note based on PwmOut class
bfoley13 0:8016d44e8294 10 void PlaySong(float frequency[], float duration[], float volume=1.0) {
bfoley13 0:8016d44e8294 11 vol = volume;
bfoley13 0:8016d44e8294 12 notecount = 0;
bfoley13 0:8016d44e8294 13 _pin.period(1.0/frequency[notecount]);
bfoley13 0:8016d44e8294 14 _pin = volume/2.0;
bfoley13 0:8016d44e8294 15 noteduration.attach(this,&SongPlayer::nextnote, duration[notecount]);
bfoley13 0:8016d44e8294 16 // setup timer to interrupt for next note to play
bfoley13 0:8016d44e8294 17 frequencyptr = frequency;
bfoley13 0:8016d44e8294 18 durationptr = duration;
bfoley13 0:8016d44e8294 19 //returns after first note starts to play
bfoley13 0:8016d44e8294 20 }
bfoley13 0:8016d44e8294 21 void nextnote();
bfoley13 0:8016d44e8294 22 int getDuration();
bfoley13 0:8016d44e8294 23 int getNoteCount();
bfoley13 0:8016d44e8294 24
bfoley13 0:8016d44e8294 25 private:
bfoley13 0:8016d44e8294 26 Timeout noteduration;
bfoley13 0:8016d44e8294 27 PwmOut _pin;
bfoley13 0:8016d44e8294 28 int notecount;
bfoley13 0:8016d44e8294 29 float vol;
bfoley13 0:8016d44e8294 30 float * frequencyptr;
bfoley13 0:8016d44e8294 31 float * durationptr;
bfoley13 0:8016d44e8294 32 };
bfoley13 0:8016d44e8294 33 //Interrupt Routine to play next note
bfoley13 0:8016d44e8294 34 void SongPlayer::nextnote()
bfoley13 0:8016d44e8294 35 {
bfoley13 0:8016d44e8294 36 _pin = 0.0;
bfoley13 0:8016d44e8294 37 notecount++; //setup next note in song
bfoley13 0:8016d44e8294 38 if (durationptr[notecount]!=0.0) {
bfoley13 0:8016d44e8294 39 _pin.period(1.0/frequencyptr[notecount]);
bfoley13 0:8016d44e8294 40 noteduration.attach(this,&SongPlayer::nextnote, durationptr[notecount]);
bfoley13 0:8016d44e8294 41 _pin = vol/2.0;
bfoley13 0:8016d44e8294 42 } else
bfoley13 0:8016d44e8294 43 _pin = 0.0; //turn off on last note
bfoley13 0:8016d44e8294 44 }
bfoley13 0:8016d44e8294 45
bfoley13 0:8016d44e8294 46 int SongPlayer::getDuration(){
bfoley13 0:8016d44e8294 47 return sizeof(durationptr)/sizeof(durationptr[0]);
bfoley13 0:8016d44e8294 48 }
bfoley13 0:8016d44e8294 49
bfoley13 0:8016d44e8294 50 int SongPlayer::getNoteCount(){
bfoley13 0:8016d44e8294 51 return notecount;
bfoley13 0:8016d44e8294 52 }