57 lines
1.9 KiB
QBasic
57 lines
1.9 KiB
QBasic
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5 DEFINT A-Z
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10 ' BASICA/GWBASIC Version of Sound Effects Demo Program
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15 '
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20 ' Sound effect menu
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25 Q = 2
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30 WHILE Q >= 1
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35 CLS
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40 PRINT "Sound effects": PRINT
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45 COLOR 15, 0: PRINT " B"; : COLOR 7, 0: PRINT "ouncing"
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50 COLOR 15, 0: PRINT " F"; : COLOR 7, 0: PRINT "alling"
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55 COLOR 15, 0: PRINT " K"; : COLOR 7, 0: PRINT "laxon"
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60 COLOR 15, 0: PRINT " S"; : COLOR 7, 0: PRINT "iren"
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65 COLOR 15, 0: PRINT " Q"; : COLOR 7, 0: PRINT "uit"
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70 PRINT : PRINT "Select: ";
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75 Q$ = INPUT$(1): Q = INSTR("BFKSQbfksq", Q$) ' Get valid key
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80 IF Q = 0 GOTO 75
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85 CLS ' Take action based on key
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90 ON Q GOSUB 100, 200, 300, 400, 500, 100, 200, 300, 400, 500
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95 WEND
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100 ' Bounce - loop two sounds down at decreasing time intervals
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105 HTONE = 32767: LTONE = 246
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110 PRINT "Bouncing . . ."
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115 FOR COUNT = 60 TO 1 STEP -2
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120 SOUND LTONE - COUNT / 2, COUNT / 20
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125 SOUND HTONE, COUNT / 15
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130 NEXT COUNT
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135 RETURN
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200 ' Fall - loop down from a high sound to a low sound
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205 HTONE = 2000: LTONE = 550: DELAY = 500
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210 PRINT "Falling . . ."
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215 FOR COUNT = HTONE TO LTONE STEP -10
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220 SOUND COUNT, DELAY / COUNT
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225 NEXT COUNT
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230 RETURN
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300 ' Klaxon - alternate two sounds until a key is pressed
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305 HTONE = 987: LTONE = 329
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310 PRINT "Oscillating . . ."
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315 PRINT " . . . press any key to end."
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320 WHILE INKEY$ = ""
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325 SOUND HTONE, 5: SOUND LTONE, 5
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330 WEND
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335 RETURN
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400 ' Siren - loop a sound from low to high to low
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405 HTONE = 780: RANGE = 650
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410 PRINT "Wailing . . ."
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415 PRINT " . . . press any key to end."
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420 WHILE INKEY$ = ""
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425 FOR COUNT = RANGE TO -RANGE STEP -4
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430 SOUND HTONE - ABS(COUNT), .3
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435 COUNT = COUNT - 2 / RANGE
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440 NEXT COUNT
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445 WEND
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450 RETURN
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500 ' Quit
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505 END
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