DrumMachine pattern and voice selector
SiON's DrumMachine provides simple rhythm generator.
See also http://wonderfl.net/c/rvZi
webpage; http://soundimpulse.sakura.ne.jp/drummachine-pattern-and-voice-selector/
/**
* Copyright keim_at_Si ( http://wonderfl.net/user/keim_at_Si )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/kEfB
*/
// SiON ver0.60 サウンドオブジェクト [DrumMachine] の使い方
// org.si.sound.DrumMachine は，シンプルなリズムジェネレータです．
// バスドラム，スネア，ハイハットのパターン番号と音色番号を指定して，
// play() メソッドを呼び出すと，リズムパターンを奏でます．
//
// SiON ver0.60 Useage of the sound object [DrumMachine].
// The org.si.sound.DrumMachine is a simple rythm pattern player.
// You can play the rythm pattern by calling play() method
// with specifying the patten number and the voice number for each bass drum, snare drum and hihat synmbals.
package {
import flash.display.*;
import flash.events.Event;
import org.si.sion.SiONDriver;
import org.si.sion.effector.*;
import org.si.sound.DrumMachine;
import com.bit101.components.*;
public class main extends Sprite {
// ユーザーインタフェイス
// user interfaces
private var bpmSlider:HUISlider;
private var bassPanel:PatternControlPanel;
private var snarePanel:PatternControlPanel;
private var hihatPanel:PatternControlPanel;
// SiON インスタンス
// SiON instance
private var driver:SiONDriver;
private var drums:DrumMachine;
// constructor
function main() {
// SiONDriver インスタンスを作成します
// create new SiONDriver
driver = new SiONDriver();
// DrumMachine インスタンスを作成します
// create new DrumMachine
drums = new DrumMachine(0,0,0,0,0,0);
// changePatternOnNextSegment property (default = true)
// false の場合パターンを即時変更します．true の場合小節区切りのタイミングでパターン変更します．
// When it is false, the pattern will change immediately. When it is true, the pattern will change at the head of next measure.
drums.changePatternOnNextSegment = false;
// リズムパターンを番号で指定します．これらの番号はコンストラクタの引数としても指定可能です．
// Specify pattern sequence by index number. These numbers can be specifyed in the arguments of constructor.
drums.bassPatternNumber = 0;
drums.snarePatternNumber = 0;
drums.hihatPatternNumber = 0;
drums.bassVoiceNumber = 0;
drums.snareVoiceNumber = 0;
drums.hihatVoiceNumber = 0;
// ユーザーインターフェイスを作成します
// create user interfaces
_createUIs();
// SiONDriver を起動します．
// boot SiONDriver
driver.play();
// DrumMachine の演奏を開始します
// start DrumMachine
drums.play();
}
private function _createUIs() : void {
with (bpmSlider = new HUISlider(this, 108, 100, "BPM ", _onChangeBPM)) {
setSize(240,10);
setSliderParams(80, 200, 144);
}
with (bassPanel = new PatternControlPanel(this, 8, 130, "bass")) {
createPatternSlider(drums.bassPatternNumberMax, _onChangeBassPattern);
createVoiceKnob(drums.bassVoiceNumberMax, _onChangeBassVoice);
createVolumeKnob(drums.bassVolume, _onChangeBassVolume);
createMuteCheck(_onChangeBassMute);
updatePatternDisplay(drums.bassPattern);
}
with (snarePanel = new PatternControlPanel(this, 8, 200, "snare")) {
createPatternSlider(drums.snarePatternNumberMax, _onChangeSnarePattern);
createVoiceKnob(drums.snareVoiceNumberMax, _onChangeSnareVoice);
createVolumeKnob(drums.snareVolume, _onChangeSnareVolume);
createMuteCheck(_onChangeSnareMute);
updatePatternDisplay(drums.snarePattern);
}
with (hihatPanel = new PatternControlPanel(this, 8, 270, "hihat")) {
createPatternSlider(drums.hihatPatternNumberMax, _onChangeHihatPattern);
createVoiceKnob(drums.hihatVoiceNumberMax, _onChangeHihatVoice);
createVolumeKnob(drums.hihatVolume, _onChangeHihatVolume);
createMuteCheck(_onChangeHihatMute);
updatePatternDisplay(drums.hihatPattern);
}
}
// 演奏テンポは，SiONDriver.bpmで変更します
// Change bpm by SiONDriver.bpm
private function _onChangeBPM(e:Event) : void {
driver.bpm = bpmSlider.value;
}
// リズムパターンは，DrumMachine.****PatternNumber で変更します
// Change sequences by DrumMachine.****PatternNumber
private function _onChangeBassPattern(e:Event) : void {
drums.bassPatternNumber = bassPanel.patternNumber;
// リズムパターンは，DrumMachine.****Pattern からVector.<Note>型で参照できます．
// You can refer sequence from DrumMachine.****Pattern as Vector.<Note>
bassPanel.updatePatternDisplay(drums.bassPattern);
}
private function _onChangeSnarePattern(e:Event) : void {
drums.snarePatternNumber = snarePanel.patternNumber;
snarePanel.updatePatternDisplay(drums.snarePattern);
}
private function _onChangeHihatPattern(e:Event) : void {
drums.hihatPatternNumber = hihatPanel.patternNumber;
hihatPanel.updatePatternDisplay(drums.hihatPattern);
}
// リズム音色は，DrumMachine.****VoiceNumber で変更します
// Change voices by DrumMachine.****VoiceNumber
private function _onChangeBassVoice(e:Event) : void {
drums.bassVoiceNumber = bassPanel.voiceNumber;
}
private function _onChangeSnareVoice(e:Event) : void {
drums.snareVoiceNumber = snarePanel.voiceNumber;
}
private function _onChangeHihatVoice(e:Event) : void {
drums.hihatVoiceNumber = hihatPanel.voiceNumber;
}
// 音量は，DrumMachine.****Volume で変更します
// Change volumes by DrumMachine.****Volume
private function _onChangeBassVolume(e:Event) : void {
drums.bassVolume = bassPanel.volume;
}
private function _onChangeSnareVolume(e:Event) : void {
drums.snareVolume = snarePanel.volume;
}
private function _onChangeHihatVolume(e:Event) : void {
drums.hihatVolume = hihatPanel.volume;
}
// 消音，DrumMachine.****.mute で行います
// Mute by DrumMachine.****.mute
private function _onChangeBassMute(e:Event) : void {
drums.bass.mute = bassPanel.mute;
}
private function _onChangeSnareMute(e:Event) : void {
drums.snare.mute = snarePanel.mute;
}
private function _onChangeHihatMute(e:Event) : void {
drums.hihat.mute = hihatPanel.mute;
}
}
}
import flash.display.*;
import flash.events.Event;
import com.bit101.components.*;
import org.si.sound.patterns.Note;
class PatternControlPanel extends Panel {
//-------------------------------------------------- variables
public var patternSlider:HSlider;
public var patternLabel:Label;
public var onSliderChange:Function;
public var voiceKnob:RotarySelector;
public var volumeKnob:Knob;
public var muteCheck:CheckBox;
public var patternDisplay:Shape;
//-------------------------------------------------- properties
public function get patternNumber() : int { return int(patternSlider.value + 0.5); }
public function get voiceNumber() : int { return voiceKnob.choice; }
public function get volume() : Number { return volumeKnob.value; }
public function get mute() : Boolean { return muteCheck.selected; }
//-------------------------------------------------- constructor
function PatternControlPanel(parent:DisplayObjectContainer, x:Number, y:Number, trackName:String) {
super(parent, x, y);
setSize(450, 64);
new Label(content, 8, 24, trackName);
patternLabel = new Label(content, 240, 8, "0");
content.addChild(patternDisplay = new Shape());
patternDisplay.x = 40;
patternDisplay.y = 40;
}
//-------------------------------------------------- create user interfaces
public function createPatternSlider(maximum:int, func:Function) : void {
onSliderChange = func;
patternSlider = new HSlider(content, 40, 12, _onSliderChange);
patternSlider.backClick = true;
patternSlider.setSize(192, 12);
patternSlider.setSliderParams(0, maximum-1, 0);
}
public function createVoiceKnob(maximum:int, func:Function) : void {
voiceKnob = new RotarySelector(content, 280, 20, "voice", func);
voiceKnob.setSize(16, 16);
voiceKnob.labelMode = "numeric";
voiceKnob.numChoices = maximum;
}
public function createVolumeKnob(value:Number, func:Function) : void {
volumeKnob = new Knob(content, 350, 6, "volume", func);
volumeKnob.radius = 8;
volumeKnob.labelPrecision = 2;
volumeKnob.value = value;
volumeKnob.maximum = 1;
}
public function createMuteCheck(func:Function) : void {
muteCheck = new CheckBox(content, 400, 26, "mute", func);
muteCheck.selected = false;
}
public function updatePatternDisplay(pattern:Vector.<Note>) : void {
patternDisplay.graphics.clear();
patternDisplay.graphics.lineStyle(1, 0x808080);
for (var i:int = 0; i<16; i++) {
if (pattern[i] == null) patternDisplay.graphics.beginFill(0xffffff);
else if (pattern[i].voiceIndex == 1) patternDisplay.graphics.beginFill(0x80c0ff);
else patternDisplay.graphics.beginFill(0xffc080);
patternDisplay.graphics.drawRect(i*12, 0, 10, 10);
patternDisplay.graphics.endFill();
}
}
private function _onSliderChange(e:Event) : void {
patternLabel.text = String(patternNumber);
onSliderChange(e);
}
}