mirror of
https://github.com/irmen/prog8.git
synced 2024-12-23 09:32:43 +00:00
127 lines
4.2 KiB
Lua
127 lines
4.2 KiB
Lua
%import textio
|
|
%import syslib
|
|
%import psg
|
|
|
|
main {
|
|
|
|
sub explosion() {
|
|
; this subroutine is not used but it is an example of how to make a sound effect using the psg library!
|
|
psg.silent()
|
|
cx16.enable_irq_handlers(true)
|
|
cx16.set_vsync_irq_handler(&psg.envelopes_irq)
|
|
psg.voice(0, psg.LEFT, 0, psg.NOISE, 0)
|
|
psg.voice(1, psg.RIGHT, 0, psg.NOISE, 0)
|
|
psg.freq(0, 1000)
|
|
psg.freq(1, 2000)
|
|
psg.envelope(0, 63, 50, 0, 5)
|
|
psg.envelope(1, 63, 80, 0, 6)
|
|
sys.wait(100)
|
|
psg.silent()
|
|
cx16.disable_irq_handlers()
|
|
}
|
|
|
|
sub sweeping() {
|
|
; this subroutine is not used but it is an example of how to make a sound effect using the psg library!
|
|
psg.silent()
|
|
psg.voice(0, psg.LEFT, 63, psg.PULSE, 0)
|
|
psg.voice(1, psg.LEFT, 63, psg.PULSE, 1)
|
|
psg.voice(2, psg.RIGHT, 63, psg.PULSE, 2)
|
|
psg.voice(3, psg.RIGHT, 63, psg.PULSE, 3)
|
|
psg.freq(0, 160)
|
|
psg.freq(1, 161)
|
|
psg.freq(2, 162)
|
|
psg.freq(3, 163)
|
|
repeat {
|
|
ubyte pw
|
|
for pw in 0 to 63 {
|
|
psg.pulse_width(0, pw)
|
|
psg.pulse_width(1, pw)
|
|
psg.pulse_width(2, pw)
|
|
psg.pulse_width(3, pw)
|
|
sys.wait(2)
|
|
}
|
|
for pw in 62 downto 1 {
|
|
psg.pulse_width(0, pw)
|
|
psg.pulse_width(1, pw)
|
|
psg.pulse_width(2, pw)
|
|
psg.pulse_width(3, pw)
|
|
sys.wait(2)
|
|
}
|
|
}
|
|
psg.silent()
|
|
}
|
|
|
|
|
|
sub start() {
|
|
txt.print("will play the music from boulderdash,\nmade in 1984 by peter liepa.\npress enter to start: ")
|
|
void cbm.CHRIN()
|
|
txt.clear_screen()
|
|
|
|
psg.silent()
|
|
psg.voice(0, psg.LEFT, 63, psg.TRIANGLE, 0)
|
|
psg.voice(1, psg.RIGHT, 63, psg.TRIANGLE, 0)
|
|
|
|
cx16.enable_irq_handlers(true)
|
|
cx16.set_vsync_irq_handler(&psg.envelopes_irq)
|
|
|
|
repeat {
|
|
uword note
|
|
for note in notes {
|
|
ubyte note0 = lsb(note)
|
|
ubyte note1 = msb(note)
|
|
psg.freq(0, vera_freqs[note0])
|
|
psg.freq(1, vera_freqs[note1])
|
|
psg.envelope(0, 63, 255, 0, 6)
|
|
psg.envelope(1, 63, 255, 0, 6)
|
|
print_notes(note0, note1)
|
|
sys.wait(10)
|
|
}
|
|
}
|
|
|
|
psg.silent()
|
|
cx16.disable_irq_handlers()
|
|
}
|
|
|
|
sub print_notes(ubyte n1, ubyte n2) {
|
|
txt.nl()
|
|
txt.plot(n1, txt.DEFAULT_HEIGHT-1)
|
|
txt.color(7)
|
|
txt.chrout('Q')
|
|
txt.plot(n2, txt.DEFAULT_HEIGHT-1)
|
|
txt.color(4)
|
|
txt.chrout('Q')
|
|
}
|
|
|
|
|
|
; details about the boulderdash music can be found here:
|
|
; https://www.elmerproductions.com/sp/peterb/sounds.html#Theme%20tune
|
|
|
|
uword[] notes = [
|
|
$1622, $1d26, $2229, $252e, $1424, $1f27, $2029, $2730,
|
|
$122a, $122c, $1e2e, $1231, $202c, $3337, $212d, $3135,
|
|
$1622, $162e, $161d, $1624, $1420, $1430, $1424, $1420,
|
|
$1622, $162e, $161d, $1624, $1e2a, $1e3a, $1e2e, $1e2a,
|
|
$142c, $142c, $141b, $1422, $1c28, $1c38, $1c2c, $1c28,
|
|
$111d, $292d, $111f, $292e, $0f27, $0f27, $1633, $1627,
|
|
$162e, $162e, $162e, $162e, $222e, $222e, $162e, $162e,
|
|
$142e, $142e, $142e, $142e, $202e, $202e, $142e, $142e,
|
|
$162e, $322e, $162e, $332e, $222e, $322e, $162e, $332e,
|
|
$142e, $322e, $142e, $332e, $202c, $302c, $142c, $312c,
|
|
$162e, $163a, $162e, $3538, $222e, $2237, $162e, $3135,
|
|
$142c, $1438, $142c, $1438, $202c, $2033, $142c, $1438,
|
|
$162e, $322e, $162e, $332e, $222e, $322e, $162e, $332e,
|
|
$142e, $322e, $142e, $332e, $202c, $302c, $142c, $312c,
|
|
$2e32, $292e, $2629, $2226, $2c30, $272c, $2427, $1420,
|
|
$3532, $322e, $2e29, $2926, $2730, $242c, $2027, $1420
|
|
]
|
|
|
|
uword[] @split vera_freqs = [
|
|
0,0,0,0,0,0,0,0,0,0, ; first 10 notes are not used
|
|
120, 127, 135, 143, 152, 160, 170, 180, 191, 203,
|
|
215, 227, 240, 255, 270, 287, 304, 320, 341, 360,
|
|
383, 405, 429, 455, 479, 509, 541, 573, 607, 640,
|
|
682, 720, 766, 810, 859, 910, 958, 1019, 1082, 1147,
|
|
1215, 1280, 1364, 1440, 1532, 1621, 1718, 1820, 1917]
|
|
|
|
}
|