Miroirs/pixelfaucet
1
0
Fork 0
mirror of https://github.com/SleepingInsomniac/pixelfaucet synced 2024-11-17 07:48:20 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add voice, remove voice from sounds array if finished

Browse source
This commit is contained in:
Alex Clink 2022-02-04 00:07:41 -05:00
parent f659763ed8
commit 58850c7f0a
1 changed files with 58 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

77
examples/piano.cr
View file

@ -1,6 +1,5 @@
require "../src/game"
require "../src/controller"
require "../src/pixel_text"
require "../src/audio"
require "../src/audio/*"
@ -8,12 +7,22 @@ module PF
enum Instrument : UInt8
RetroVoice
PianoVoice
DrumVoice
end
class RetroVoice < Voice
def initialize(@note, time)
@envelope = Envelope.new(time,
attack_time: 0.01,
decay_time: 0.1,
sustain_level: 0.5,
release_time: 0.5
)
end
def hertz(time)
envelope.amplitude(time) * (
Oscilator.triangle(note.hertz, time)
Oscilator.square(note.hertz, time, 7.0, 0.001)
)
end
end
@ -21,31 +30,48 @@ module PF
class PianoVoice < Voice
def initialize(@note, time)
@envelope = Envelope.new(time,
attack_time: 0.01,
decay_time: 1.0,
attack_time: 0.001,
decay_time: 0.7,
sustain_level: 0.0,
release_time: 0.1,
releasable: false
release_time: 1.0
)
end
def hertz(time)
envelope.amplitude(time) * (
Oscilator.sin(note.hertz, time)
Oscilator.triangle(note.hertz - 1.5, time - 0.33)
Oscilator.saw(note.hertz, time, 5, 3.0, 0.000001) +
Oscilator.triangle(note.hertz + 1.5, time + 0.33)
) / 3.0
end
end
class DrumVoice < Voice
def initialize(@note, time)
@envelope = Envelope.new(time,
attack_time: 0.01,
decay_time: 1.0,
sustain_level: 0.0,
release_time: 0.1
)
end
def hertz(time)
envelope.amplitude(time) * (
Oscilator.noise(note.hertz + Math.sin(time / 10), time)
)
end
end
class Piano < Game
@text : PF::PixelText = PF::PixelText.new("assets/pf-font.png")
@key_size : Int32
@key_width : Int32
@middle : Int32
@keys : UInt32 = 15
@base_octave : UInt8 = 4u8
@base_octave : Int8 = 4
@accidentals : StaticArray(UInt8, 12) = StaticArray[0u8, 1u8, 0u8, 0u8, 1u8, 0u8, 1u8, 0u8, 0u8, 1u8, 0u8, 1u8]
# @highlight : Pixel = Pixel.new(0, 127, 255)
@highlight : Pixel = Pixel.new(120, 120, 120)
@text_hl : Pixel = Pixel.new(0, 200, 255)
@instrument : Instrument = Instrument::RetroVoice
def initialize(*args, **kwargs)
@ -55,12 +81,20 @@ module PF
@key_width = width // 10
@middle = (height // 2) + 25
@text.color(Pixel.new(127, 127, 127))
@text_color = Pixel.new(127, 127, 127)
@controller = PF::Controller(Keys).new({
Keys::UP => "up",
Keys::DOWN => "down",
Keys::KEY_1 => "1",
Keys::KEY_2 => "2",
Keys::KEY_3 => "3",
Keys::KEY_4 => "4",
Keys::KEY_5 => "5",
Keys::KEY_6 => "6",
Keys::KEY_7 => "7",
Keys::KEY_8 => "8",
Keys::KEY_9 => "9",
Keys::KEY_0 => "0",
Keys::Z => "A",
Keys::S => "AS",
Keys::X => "B",
@ -113,20 +147,23 @@ module PF
def update(dt, event)
@controller.map_event(event)
@base_octave += 1 if @controller.pressed?("up")
@base_octave -= 1 if @controller.pressed?("down")
@base_octave = ((@base_octave + 1) % 8) if @controller.pressed?("up")
@base_octave = ((@base_octave - 1) % 8) if @controller.pressed?("down")
@instrument = Instrument::RetroVoice if @controller.pressed?("1")
@instrument = Instrument::PianoVoice if @controller.pressed?("2")
@instrument = Instrument::DrumVoice if @controller.pressed?("3")
{% for name, n in Note::NOTES + %w[A+ AS+ B+ C+] %}
if @controller.pressed?({{name}})
voice = case @instrument
when Instrument::RetroVoice
RetroVoice.new(Note.new({{n}}_u8, @base_octave), @audio.time)
RetroVoice.new(Note.new({{n}}_i8, @base_octave), @audio.time)
when Instrument::PianoVoice
PianoVoice.new(Note.new({{n}}_u8, @base_octave), @audio.time)
PianoVoice.new(Note.new({{n}}_i8, @base_octave), @audio.time)
when Instrument::DrumVoice
DrumVoice.new(Note.new({{n}}_i8, @base_octave), @audio.time)
else
PianoVoice.new(Note.new({{n}}_u8, @base_octave), @audio.time)
PianoVoice.new(Note.new({{n}}_i8, @base_octave), @audio.time)
end
@keysdown[{{name}}] = voice
@sounds << voice
@ -137,6 +174,8 @@ module PF
@keysdown.delete({{name}})
end
{% end %}
@sounds.reject!(&.finished?)
end
def draw
@ -147,20 +186,20 @@ module PF
1 : RetroVoice, 2 : PianoVoice
Octave: #{@base_octave}, Voice : #{@instrument}
TEXT
@text.draw_to(screen, text, 5, 5)
draw_string(text, 5, 5, @text_color)
@white_keys.each do |key|
top_left, bottom_right, name = key
fill_rect(top_left, bottom_right, @keysdown[name]? ? @highlight : Pixel.white)
draw_rect(top_left, bottom_right, Pixel.new(127, 127, 127))
@text.draw_to(screen, name, top_left.x + 2, top_left.y + (@key_size * 2) - @text.char_height - 2)
draw_string(name, top_left.x + 2, top_left.y + (@key_size * 2) - Sprite::CHAR_HEIGHT - 2, @keysdown[name]? ? @text_hl : @text_color)
end
@black_keys.each do |key|
top_left, bottom_right, name = key
fill_rect(top_left, bottom_right, @keysdown[name]? ? @highlight : Pixel.black)
draw_rect(top_left, bottom_right, Pixel.new(127, 127, 127))
@text.draw_to(screen, name, top_left.x + 2, top_left.y + @key_size - @text.char_height - 2)
draw_string(name, top_left.x + 2, top_left.y + @key_size - Sprite::CHAR_HEIGHT - 2, @keysdown[name]? ? @text_hl : @text_color)
end
fill_rect(0, @middle - @key_size - 2, width, @middle - @key_size, Pixel.new(200, 20, 20))