Musical sound effects!

This commit is contained in:
Jeremy Penner 2021-02-04 19:45:40 -05:00
parent ce40cc342f
commit e90e70f8e3
3 changed files with 72 additions and 6 deletions

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@ -18,5 +18,58 @@
[:bne :sample]]
(vm:drop) (vm:drop))
(vm:word :snd-explode 0x40 :lit :randombytes :blipmem)
(vm:def :bliptone ; duration-f1 f2 --
[:block
[:lda vm.ST1H :x]
[:sta vm.W]
:top
[:lda speaker]
[:ldy vm.ST1 :x]
:wave1 [:dey] [:bne :wave1]
[:lda speaker]
[:lda vm.TOPH :x]
[:ldy vm.TOP :x] [:iny]
:wave2 [:dey] [:bne :wave2]
[:ldy 0xff]
[:sec] [:sbc 1] [:bcs :wave2]
[:dec vm.W]
[:bne :top]
(vm:drop) (vm:drop)])
; 0x39a "samples" = 440hz
(local notes {})
(each [i note (ipairs [:a :a# :b :c :c# :d :d# :e :f :f# :g :g#])]
(tset notes note (- i 1)))
(fn wavelength [note]
(-> 0x39a
(/ (math.pow 1.05946 (. notes note)))
(math.floor)))
(fn octave [wvl oct]
(-> wvl
(/ (math.pow 2 (- oct 3)))
(math.floor)))
(fn parse-note [n]
(values (n:sub 1 -2) (tonumber (n:sub -1))))
(fn note-wavelength [n]
(local (note oct) (parse-note n))
(-> (wavelength note)
(octave oct)))
(fn note [n ?duration ?timbre]
(local timbre (or ?timbre 0x20))
(local duration (or ?duration 0x10))
(local wvl (note-wavelength n))
[:vm (bit.bor (bit.lshift duration 8) timbre) (- wvl timbre) :bliptone])
(fn notes [ns ?duration ?timbre]
(local result [:block])
(each [_ n (ipairs ns)]
(table.insert result (note n ?duration ?timbre)))
result)
(vm:word :snd-explode 0x40 :lit :randombytes :blipmem)
(vm:word :snd-dooropen (notes [:c1 :e1] 8))
(vm:word :snd-doorclose (notes [:e1 :c1] 8))
(vm:word :snd-term-jingle (notes [:e3 :f3 :g3] 0x20))
(vm:word :snd-termon :snd-term-jingle (note :c4 0x20))
(vm:word :snd-termoff :snd-term-jingle (note :c3 0x20))
{: note : notes}

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@ -72,12 +72,23 @@
:get-responder :get :dup :handle-general-move
:swap :over :not (vm:if [:move-player-to] [:drop]))
(vm:var :pre-handled-tile 0)
(vm:var :pre-handled-ev 0)
(vm:word :handle-onoff ; ev off on --
:<rot (vm:case
:responder-itile :pre-handled-tile :set :<rot
:dup ev.tog := (vm:when
:drop :dup :responder-itile := (vm:if [ev.deact] [ev.act])
) :dup :pre-handled-ev :set (vm:case
[ev.act :swap :drop :set-respondertile]
[ev.deact :drop :set-respondertile]
[ev.tog :dup :responder-itile := (vm:if [:drop :set-respondertile] [:set-respondertile :drop])]
[:else :drop :drop]))
(vm:word :on-handled ; xp-on xp-off --
:responder-itile :pre-handled-tile :get := (vm:if
[:drop :drop]
[:pre-handled-ev :get ev.act :=
(vm:if [:drop] [:swap :drop]) :execute]))
(vm:word :activation-ev? ; ev -- f
:dup ev.act := :over ev.deact := :| :swap ev.tog := :|)
(vm:word :activate-link ; ev itile-on --
@ -93,7 +104,8 @@
(vm:word :door ; ev --
:walking-through-door (vm:if
[:move-to-responder :drop]
[(itile :doorclosed) (itile :dooropen) :handle-onoff]))
[(itile :doorclosed) (itile :dooropen) :handle-onoff
:lit :snd-dooropen :lit :snd-doorclose :on-handled]))
(vm:word :exitlevel ; e --
:link-arg :next-level :set)
@ -126,7 +138,8 @@
(say :neut "PLEASE CONTACT YOUR" "SYSTEM ADMINISTRATOR")
(say :neut "THIS INCIDENT HAS" "BEEN REPORTED"))]))]
[]))
(itile :termoff) (itile :termon) :handle-onoff)
(itile :termoff) (itile :termon) :handle-onoff
:lit :snd-termon :lit :snd-termoff :on-handled)
(vm:word :handle-scan ; ev --
:dup (itile :scanoff) (itile :scanon) :handle-onoff