Commodore VIC-20 User Manual page 260

246
The VIC 20 User Guide
651
CLOSE 1
"I PRINT IIREADY. II
67.
OOTO
3'~
To store the data into a disk file, change line 620 to
READING MUSIC FROM THE
DATASSmE OR DISK
To read a song from a music file, you will need to read the information
back into an array that can be ready by your electronic organ program. The
following routine accomplishes this. You'll need to give the new version of
your song another name, such as "SONG. 1, "if you are using the disk drive.
Here is the Datasette version.
399
IF R,-III" THEN
7.
709
INPUT"SONO HAME"iSN.
718 OPEN 1,1,0,SN'
728 INPUTll,'(C):'-ST
738 C-C+l:IF I-I THEN 728
748 CLOSE 1:PRINT"READY.":0OTO
3e~
If you have a disk drive, change line 710 to
COMBINING SOUND WITH
ANIMATION
Most video games use sound very effectively. The sounds can be used to
create a mood or to give the player more information about the action that is
taking place on the screen.
Timing
When playing a video game, the player is more dependent on the timing
of the sound than on the visual portion of the game. Try this ping-pong
program with no sound.