80 lines
2.0 KiB
QBasic
80 lines
2.0 KiB
QBasic
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DECLARE SUB Bounce (Hi%, Low%)
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DECLARE SUB Fall (Hi%, Low%, Del%)
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DECLARE SUB Siren (Hi%, Range%)
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DECLARE SUB Klaxon (Hi%, Low%)
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DEFINT A-Z
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' QB4 Version of Sound Effects Demo Program
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' Sound effects menu
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DO
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CLS
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PRINT "Sound effects": PRINT
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COLOR 15, 0: PRINT " B"; : COLOR 7, 0: PRINT "ouncing"
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COLOR 15, 0: PRINT " F"; : COLOR 7, 0: PRINT "alling"
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COLOR 15, 0: PRINT " K"; : COLOR 7, 0: PRINT "laxon"
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COLOR 15, 0: PRINT " S"; : COLOR 7, 0: PRINT "iren"
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COLOR 15, 0: PRINT " Q"; : COLOR 7, 0: PRINT "uit"
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PRINT : PRINT "Select: ";
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' Get valid key
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DO
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Q$ = UCASE$(INPUT$(1))
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LOOP WHILE INSTR("BFKSQ", Q$) = 0
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' Take action based on key
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CLS
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SELECT CASE Q$
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CASE IS = "B"
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PRINT "Bouncing . . . "
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Bounce 32767, 246
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CASE IS = "F"
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PRINT "Falling . . . "
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Fall 2000, 550, 500
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CASE IS = "S"
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PRINT "Wailing . . ."
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PRINT " . . . press any key to end."
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Siren 780, 650
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CASE IS = "K"
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PRINT "Oscillating . . ."
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PRINT " . . . press any key to end."
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Klaxon 987, 329
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CASE ELSE
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END SELECT
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LOOP UNTIL Q$ = "Q"
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END
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' Loop two sounds down at decreasing time intervals
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SUB Bounce (Hi%, Low%) STATIC
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FOR Count = 60 TO 1 STEP -2
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SOUND Low - Count / 2, Count / 20
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SOUND Hi, Count / 15
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NEXT Count
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END SUB
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' Loop down from a high sound to a low sound
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SUB Fall (Hi%, Low%, Del%) STATIC
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FOR Count = Hi TO Low STEP -10
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SOUND Count, Del / Count
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NEXT Count
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END SUB
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' Alternate two sounds until a key is pressed
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SUB Klaxon (Hi%, Low%) STATIC
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DO WHILE INKEY$ = ""
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SOUND Hi, 5
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SOUND Low, 5
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LOOP
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END SUB
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' Loop a sound from low to high to low
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SUB Siren (Hi%, Range%)
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DO WHILE INKEY$ = ""
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FOR Count = Range TO -Range STEP -4
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SOUND Hi - ABS(Count), .3
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Count = Count - 2 / Range
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NEXT Count
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LOOP
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END SUB
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