World In Balance game
Dependencies: 4DGL-uLCD-SE PinDetect mbed
Speaker.h@0:1305fa20a8db, 2017-11-08 (annotated)
- Committer:
- jchin32
- Date:
- Wed Nov 08 20:25:03 2017 +0000
- Revision:
- 0:1305fa20a8db
World In Balance Game
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
jchin32 | 0:1305fa20a8db | 1 | #include "mbed.h" |
jchin32 | 0:1305fa20a8db | 2 | // new class to play a note on Speaker based on PwmOut class |
jchin32 | 0:1305fa20a8db | 3 | class Speaker |
jchin32 | 0:1305fa20a8db | 4 | { |
jchin32 | 0:1305fa20a8db | 5 | public: |
jchin32 | 0:1305fa20a8db | 6 | Speaker(PinName pin) : _pin(pin) { |
jchin32 | 0:1305fa20a8db | 7 | // _pin(pin) means pass pin to the Speaker Constructor |
jchin32 | 0:1305fa20a8db | 8 | } |
jchin32 | 0:1305fa20a8db | 9 | // class method to play a note based on PwmOut class |
jchin32 | 0:1305fa20a8db | 10 | void PlayNote(float frequency, float duration, float volume) { |
jchin32 | 0:1305fa20a8db | 11 | _pin.period(1.0/frequency); |
jchin32 | 0:1305fa20a8db | 12 | _pin = volume/2.0; |
jchin32 | 0:1305fa20a8db | 13 | wait(duration); |
jchin32 | 0:1305fa20a8db | 14 | _pin = 0.0; |
jchin32 | 0:1305fa20a8db | 15 | } |
jchin32 | 0:1305fa20a8db | 16 | |
jchin32 | 0:1305fa20a8db | 17 | private: |
jchin32 | 0:1305fa20a8db | 18 | PwmOut _pin; |
jchin32 | 0:1305fa20a8db | 19 | }; |