Arthur Bui / Mbed 2 deprecated uDoodleJump

Tilt the IMU to stay on the platforms!

Dependencies:   4DGL-uLCD-SE LSM9DS1_Library_cal SDFileSystem mbed wave_player

Fork of uDoodleJump by Arthur Bui

SongPlayer.h@0:78b8bc1cd230, 2016-03-16 (annotated)

Committer:
abui7
Date:
Wed Mar 16 22:11:18 2016 +0000
Revision:
0:78b8bc1cd230
uDoodleJump

Who changed what in which revision?

UserRevisionLine numberNew contents of line
abui7 0:78b8bc1cd230 1 #include "mbed.h"
abui7 0:78b8bc1cd230 2 // new class to play a note on Speaker based on PwmOut class
abui7 0:78b8bc1cd230 3 class SongPlayer
abui7 0:78b8bc1cd230 4 {
abui7 0:78b8bc1cd230 5 public:
abui7 0:78b8bc1cd230 6 SongPlayer(PinName pin) : _pin(pin) {
abui7 0:78b8bc1cd230 7 // _pin(pin) means pass pin to the constructor
abui7 0:78b8bc1cd230 8 }
abui7 0:78b8bc1cd230 9 // class method to play a note based on PwmOut class
abui7 0:78b8bc1cd230 10 void PlaySong(float frequency[], float duration[], float volume=1.0) {
abui7 0:78b8bc1cd230 11 vol = volume;
abui7 0:78b8bc1cd230 12 notecount = 0;
abui7 0:78b8bc1cd230 13 _pin.period(1.0/frequency[notecount]);
abui7 0:78b8bc1cd230 14 _pin = volume/2.0;
abui7 0:78b8bc1cd230 15 noteduration.attach(this,&SongPlayer::nextnote, duration[notecount]);
abui7 0:78b8bc1cd230 16 // setup timer to interrupt for next note to play
abui7 0:78b8bc1cd230 17 frequencyptr = frequency;
abui7 0:78b8bc1cd230 18 durationptr = duration;
abui7 0:78b8bc1cd230 19 //returns after first note starts to play
abui7 0:78b8bc1cd230 20 }
abui7 0:78b8bc1cd230 21 void nextnote();
abui7 0:78b8bc1cd230 22 private:
abui7 0:78b8bc1cd230 23 Timeout noteduration;
abui7 0:78b8bc1cd230 24 PwmOut _pin;
abui7 0:78b8bc1cd230 25 int notecount;
abui7 0:78b8bc1cd230 26 float vol;
abui7 0:78b8bc1cd230 27 float * frequencyptr;
abui7 0:78b8bc1cd230 28 float * durationptr;
abui7 0:78b8bc1cd230 29 };
abui7 0:78b8bc1cd230 30 //Interrupt Routine to play next note
abui7 0:78b8bc1cd230 31 void SongPlayer::nextnote()
abui7 0:78b8bc1cd230 32 {
abui7 0:78b8bc1cd230 33 _pin = 0.0;
abui7 0:78b8bc1cd230 34 notecount++; //setup next note in song
abui7 0:78b8bc1cd230 35 if (durationptr[notecount]!=0.0) {
abui7 0:78b8bc1cd230 36 _pin.period(1.0/frequencyptr[notecount]);
abui7 0:78b8bc1cd230 37 noteduration.attach(this,&SongPlayer::nextnote, durationptr[notecount]);
abui7 0:78b8bc1cd230 38 _pin = vol/2.0;
abui7 0:78b8bc1cd230 39 } else
abui7 0:78b8bc1cd230 40 _pin = 0.0; //turn off on last note
abui7 0:78b8bc1cd230 41 }