Michael Martin / Mbed 2 deprecated 4180Lab4

Flappy Bird game on mbed with a micro LCD screen, class D amp, speaker, SD card reader/writer, 5-button navigation switch, and potentiometer speed control

Dependencies:   4DGL-uLCD-SE PinDetect SDFileSystem mbed-rtos mbed

soundBuilder.cpp@0:cd1d2540aaf4, 2016-03-15 (annotated)

Committer:
Mpmart08
Date:
Tue Mar 15 01:11:07 2016 +0000
Revision:
0:cd1d2540aaf4
added comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Mpmart08 0:cd1d2540aaf4 1 #include "Speaker.h"
Mpmart08 0:cd1d2540aaf4 2 #include "soundBuilder.h"
Mpmart08 0:cd1d2540aaf4 3
Mpmart08 0:cd1d2540aaf4 4 Note::Note(){
Mpmart08 0:cd1d2540aaf4 5 setFreq(0);
Mpmart08 0:cd1d2540aaf4 6 setLength(0);
Mpmart08 0:cd1d2540aaf4 7 setVolume(0);
Mpmart08 0:cd1d2540aaf4 8 }
Mpmart08 0:cd1d2540aaf4 9
Mpmart08 0:cd1d2540aaf4 10 Note::Note(float freq, float dur, float vol){
Mpmart08 0:cd1d2540aaf4 11 setFreq(freq);
Mpmart08 0:cd1d2540aaf4 12 setLength(dur);
Mpmart08 0:cd1d2540aaf4 13 setVolume(vol);
Mpmart08 0:cd1d2540aaf4 14 }
Mpmart08 0:cd1d2540aaf4 15
Mpmart08 0:cd1d2540aaf4 16 void Note::setFreq(float nfreq){
Mpmart08 0:cd1d2540aaf4 17 freq = nfreq;
Mpmart08 0:cd1d2540aaf4 18 }
Mpmart08 0:cd1d2540aaf4 19
Mpmart08 0:cd1d2540aaf4 20 void Note::setLength(float dur){
Mpmart08 0:cd1d2540aaf4 21 length = dur;
Mpmart08 0:cd1d2540aaf4 22 }
Mpmart08 0:cd1d2540aaf4 23
Mpmart08 0:cd1d2540aaf4 24 void Note::setVolume(float vol){
Mpmart08 0:cd1d2540aaf4 25 volume = vol;
Mpmart08 0:cd1d2540aaf4 26 }
Mpmart08 0:cd1d2540aaf4 27
Mpmart08 0:cd1d2540aaf4 28 float Note::getFreq(){
Mpmart08 0:cd1d2540aaf4 29 return freq;
Mpmart08 0:cd1d2540aaf4 30 }
Mpmart08 0:cd1d2540aaf4 31
Mpmart08 0:cd1d2540aaf4 32 float Note::getLength(){
Mpmart08 0:cd1d2540aaf4 33 return length;
Mpmart08 0:cd1d2540aaf4 34 }
Mpmart08 0:cd1d2540aaf4 35
Mpmart08 0:cd1d2540aaf4 36 float Note::getVolume(){
Mpmart08 0:cd1d2540aaf4 37 return volume;
Mpmart08 0:cd1d2540aaf4 38 }
Mpmart08 0:cd1d2540aaf4 39
Mpmart08 0:cd1d2540aaf4 40 SoundBuilder::SoundBuilder(float freq[], float dur[], float vol[], int numNotes, Speaker *mainspeaker){
Mpmart08 0:cd1d2540aaf4 41 // add each note to the song
Mpmart08 0:cd1d2540aaf4 42 for (int i = 0; i < numNotes; i++){
Mpmart08 0:cd1d2540aaf4 43 song[i].setFreq(freq[i]);
Mpmart08 0:cd1d2540aaf4 44 song[i].setLength(dur[i]);
Mpmart08 0:cd1d2540aaf4 45 song[i].setVolume(vol[i]);
Mpmart08 0:cd1d2540aaf4 46 }
Mpmart08 0:cd1d2540aaf4 47 speaker = &(*mainspeaker);
Mpmart08 0:cd1d2540aaf4 48 }
Mpmart08 0:cd1d2540aaf4 49
Mpmart08 0:cd1d2540aaf4 50 void SoundBuilder::setNote(float freq, float dur, float vol, int noteNum){
Mpmart08 0:cd1d2540aaf4 51 // set frequency, length, and volume of the specified note
Mpmart08 0:cd1d2540aaf4 52 song[noteNum].setFreq(freq);
Mpmart08 0:cd1d2540aaf4 53 song[noteNum].setLength(dur);
Mpmart08 0:cd1d2540aaf4 54 song[noteNum].setVolume(vol);
Mpmart08 0:cd1d2540aaf4 55 }
Mpmart08 0:cd1d2540aaf4 56
Mpmart08 0:cd1d2540aaf4 57 void SoundBuilder::playNotes(int start, int stop){
Mpmart08 0:cd1d2540aaf4 58 // play each note in the song successively from given start and stop positions
Mpmart08 0:cd1d2540aaf4 59 for (int i = start; i <= stop; i++)
Mpmart08 0:cd1d2540aaf4 60 speaker->PlayNote(song[i].getFreq(), song[i].getLength(), song[i].getVolume());
Mpmart08 0:cd1d2540aaf4 61 }
Mpmart08 0:cd1d2540aaf4 62
Mpmart08 0:cd1d2540aaf4 63 void SoundBuilder::playSong(){
Mpmart08 0:cd1d2540aaf4 64 // play each note in the song successively from the beginning to the end
Mpmart08 0:cd1d2540aaf4 65 playNotes(0, sizeof(song)/sizeof(*song)-1);
Mpmart08 0:cd1d2540aaf4 66 }
Mpmart08 0:cd1d2540aaf4 67
Mpmart08 0:cd1d2540aaf4 68 void SoundBuilder::clearSong(){
Mpmart08 0:cd1d2540aaf4 69 // clear all note data from the song
Mpmart08 0:cd1d2540aaf4 70 for (int i = 0; i < sizeof(song)/sizeof(*song); i++){
Mpmart08 0:cd1d2540aaf4 71 song[i].setFreq(0);
Mpmart08 0:cd1d2540aaf4 72 song[i].setLength(0);
Mpmart08 0:cd1d2540aaf4 73 song[i].setVolume(0);
Mpmart08 0:cd1d2540aaf4 74 }
Mpmart08 0:cd1d2540aaf4 75 }