'*
'* QB64 Simple Piano
'*
'* by Terry Ritchie
'*
'* Demonstrates the use of external sound files to create a realistic piano.
'*
'* Modified 03/26/20
'* Removed the need for a separate .\PIANO\ folder to hold the graphics and
'* sound assets. All assets are now to be contained in the same folder as
'* PIANO.EXE
'*
'* ESC - exit program
'* RIGHT ARROW - increase octave
'* LEFT ARROW - decrease octave
'* Piano Keys - R T U I O (black keys)
'* - D F GH J K L (white keys)
'*
'--------------------------------
'- Variable Declaration Section -
'--------------------------------
TYPE IVORY
' key information
DIM K
(12) AS IVORY
' key information array DIM Tone&
(88) ' piano key sounds array DIM imgPiano&
' piano keyboard image DIM imgAoctave&
' active octave image DIM imgIoctave&
' inactive octave image DIM Octave%
' current octave DIM Khit&
' keyboard status DIM Keys%
' key cycle counter
'----------------------------
'- Main Program Begins Here -
'----------------------------
LOADPIANO ' load piano assets
_TITLE "PIANO" ' set window title _PUTIMAGE (0, 0), imgPiano&
' show piano image SHOWOCTAVE ' update octave indicator
Khit&
= _KEYHIT ' get keyboard status IF Khit&
THEN ' was a key hit? IF Khit&
= 19200 OR Khit&
= 19712 THEN ' yes, left or right key? IF Khit&
= 19200 THEN ' yes, left key? Octave% = Octave% - 1 ' yes, decrease octave
IF Octave%
= -1 THEN Octave%
= 0 ' keep octave in limits ELSE ' no, must be right key Octave% = Octave% + 1 ' increase octave
IF Octave%
= 5 THEN Octave%
= 4 ' keep octave in limits SHOWOCTAVE ' update octave indicator
QUIT ' yes, quit program
FOR Keys%
= 1 TO 12 ' cycle through keys PRESS Keys% ' yes, play note
RELEASE Keys% ' remove key indicator
'-----------------------------------
'- Function and Subroutine section -
'-----------------------------------
'--------------------------------------------------------------------------------------------
'*
'* Cleans RAM by removing all image and sound assets and then exits to Windows.
'*
SHARED Tone&
() ' need access to piano key sounds array SHARED imgPiano&
' need access to piano keyboard image SHARED imgAoctave&
' need access to active octave image SHARED imgIoctave&
' need access to inactive octave image
DIM Count%
' generic counter
FOR Count%
= 1 TO 88 ' cycle through all 88 sound files _SNDCLOSE Tone&
(Count%
) ' remove sound file from RAM _FREEIMAGE imgPiano&
' remove piano image from RAM _FREEIMAGE imgAoctave&
' remove active octave image from RAM _FREEIMAGE imgIoctave&
' remove inactive octave image from RAM
'--------------------------------------------------------------------------------------------
'*
'* Removes key press display and sets key as being released
'*
SHARED K
() AS IVORY
' need access to key information array
IF K
(k%
).Down
THEN ' is key pressed? K(k%).Down = 0 ' yes, set it as released
CASE 1, 3, 5, 6, 8, 10, 12 ' white key LINE (K
(k%
).x
, K
(k%
).y
)-(K
(k%
).x
+ 27, K
(k%
).y
+ 27), _RGB32(255, 255, 255), BF
LINE (K
(k%
).x
, K
(k%
).y
)-(K
(k%
).x
+ 27, K
(k%
).y
+ 27), _RGB32(32, 32, 32), BF
'--------------------------------------------------------------------------------------------
'*
'* Applies key press display and sets key as being pressed
'*
SHARED K
() AS IVORY
' need access to key information array SHARED Tone&
() ' need access to piano key sounds array SHARED Octave%
' need access to current octave
K(k%).Down = -1 ' yes, set it as pressed
_SNDPLAY Tone&
(Octave%
* 12 + k%
) ' play tone for key CASE 1, 3, 5, 6, 8, 10, 12 ' white key LINE (K
(k%
).x
, K
(k%
).y
)-(K
(k%
).x
+ 27, K
(k%
).y
+ 27), _RGB32(0, 0, 0), BF
LINE (K
(k%
).x
, K
(k%
).y
)-(K
(k%
).x
+ 27, K
(k%
).y
+ 27), _RGB32(255, 255, 255), BF
'--------------------------------------------------------------------------------------------
'*
'* Updates the small top piano keyboard to show current active octave
'*
SHARED Octave%
' need access to current octave SHARED imgAoctave&
' need access to active octave image SHARED imgIoctave&
' need access to inactive octave image
DIM Count%
' generic counter
FOR Count%
= 0 TO 4 ' cycle through octaves IF Count%
= Octave%
THEN ' current octave? _PUTIMAGE (96 + (Count%
* 64), 0), imgAoctave&
' yes, place active octave image _PUTIMAGE (96 + (Count%
* 64), 0), imgIoctave&
' place inactive octave image
'--------------------------------------------------------------------------------------------
'*
'* Loads the piano sounds and images and initializes variables
'*
SHARED K
() AS IVORY
' need access to key information array SHARED Tone&
() ' need access to piano key sounds array SHARED imgPiano&
' need access to piano keyboard image SHARED imgAoctave&
' need access to active octave image SHARED imgIoctave&
' need access to inactive octave image SHARED Octave%
' need access to current octave
DIM Note%
' counter used to open sounds DIM Count%
' counter used to close sounds if error DIM File$
' sound file names
FOR Note%
= 1 TO 88 ' cycle through notes File$
= LTRIM$(STR$(Note%
)) + ".ogg" ' construct file name Tone&
(Note%
) = _SNDOPEN(File$
, "VOL,SYNC,LEN,PAUSE") ' yes, load sound file ELSE ' no, sound file missing PRINT ' report error to user PRINT " ERROR: Sound file "; File$;
" is missing." IF Note%
> 1 THEN ' did any sounds load? FOR Count%
= Note%
TO 1 STEP -1 ' yes, cycle notes backwards _SNDCLOSE Tone&
(Count%
) ' remove sound from RAM imgPiano&
= _LOADIMAGE("piano.png", 32) ' yes, load image file ELSE ' no, image file missing PRINT ' report error to user PRINT " ERROR: piano.png missing." imgAoctave&
= _LOADIMAGE("active.png", 32) ' yes, load image file ELSE ' no, image file missing PRINT ' report error to user PRINT " ERROR: active.png missing." imgIoctave&
= _LOADIMAGE("inactive.png", 32) ' yes, load image file ELSE ' no, image file missing PRINT ' report error to user PRINT " ERROR: inactive.png missing."
K(1).x = 22: K(1).y = 212: K(2).x = 60: K(2).y = 132 ' set indicator coordinates
K(3).x = 95: K(3).y = 212: K(4).x = 134: K(4).y = 132
K(5).x = 168: K(5).y = 212: K(6).x = 241: K(6).y = 212
K(7).x = 278: K(7).y = 132: K(8).x = 314: K(8).y = 212
K(9).x = 353: K(9).y = 132: K(10).x = 387: K(10).y = 212
K(11).x = 428: K(11).y = 132: K(12).x = 460: K(12).y = 212
K(1).l = 100: K(1).u = 68: K(2).l = 114: K(2).u = 82 ' set key case values
K(3).l = 102: K(3).u = 70: K(4).l = 116: K(4).u = 84
K(5).l = 103: K(5).u = 71: K(6).l = 104: K(6).u = 72
K(7).l = 117: K(7).u = 85: K(8).l = 106: K(8).u = 74
K(9).l = 105: K(9).u = 73: K(10).l = 107: K(10).u = 75
K(11).l = 111: K(11).u = 79: K(12).l = 108: K(12).u = 76
Octave% = 2 ' set initial octave
'--------------------------------------------------------------------------------------------
