高人做的电子琴，声音控制

破晓 · 发表于 2015-7-15 16:35:59

// SiON Keyborad WF1 ver0.58
package {
import flash.display.Sprite;
import flash.events.*;
import flash.system.System;
import com.bit101.components.*;
public class main extends Sprite {
function main() {
graphics.beginFill(0);
graphics.drawRect(0,0,465,465);
graphics.endFill();
addChild(keyboard = new Sprite());
keyboard.x = 0;
keyboard.y = 120;
keys = new KeyDisplay(keyboard, 32, 54);
Style.BACKGROUND = 0x606060;
Style.BUTTON_FACE = 0x404040;
Style.LABEL_TEXT = 0xaaaaaa;
Style.DROPSHADOW = 0;
Style.PANEL = 0x202020;
Style.PROGRESS_BAR = 0x404040;
selector = new VoiceSelector(keyboard, 32, -16);
volume = new VolumePanel(keyboard, 32, 78);
stage.addEventListener("keyDown", _onKeyDown);
stage.addEventListener("keyUp", _onKeyUp);
var disc:String = "[ UP / DOWN ] = Change Voice ";
disc += "[ LEFT / RIGHT ] = Change Categoly ";
disc += "[ Q / W ] = Octave Shift";
new Label(keyboard, 16, 204, disc);
disc = "[ P ] = Send parameters to clipboard";
clipboard = new Text(keyboard, 16, 230, disc);
clipboard.setSize(433, 96);
initializeSiON();
}
private function _onKeyDown(e:KeyboardEvent) : void {
var i:int, c:String, mml:String;
switch (e.keyCode) {
case 40: updateVoice(voiceIndex-1); break;
case 38: updateVoice(voiceIndex+1); break;
case 37: updateCategoly(categolyIndex-1); break;
case 39: updateCategoly(categolyIndex+1); break;
default:
switch (c = String.fromCharCode(e.charCode)) {
case 'q': keys.octDown(); break;
case 'w': keys.octUp(); break;
case 'p':
mml = voiceList[voiceIndex].getMML(voiceIndex);
clipboard.text = "[ P ] = Send parameters to clipboard \n" + mml.replace(/\r/g, '');
System.setClipboard(mml);
break;
default: if ((i="zsxdcvgbhnjm,l.;/".indexOf(c)) >= 0) keyOn(i); break;
}
}
}
private function _onKeyUp(e:KeyboardEvent) : void {
var i:int, c:String = String.fromCharCode(e.charCode);
if ((i="zsxdcvgbhnjm,l.;/".indexOf(c)) >= 0) keyOff(i);
}
}
}
import flash.display.*;
import flash.events.*;
import flash.filters.*;
import flash.text.*;
import flash.geom.*;
import com.bit101.components.*;
import org.si.sion.*;
import org.si.sion.effector.*;
import org.si.sion.sequencer.SiMMLTrack;
import org.si.sion.utils.SiONPresetVoice;
// SiON variables
var driver:SiONDriver = new SiONDriver();
var presetVoice:SiONPresetVoice = new SiONPresetVoice();
var voiceList:Array = presetVoice.categolies[0];
var voiceIndex:int = 0;
var categolyIndex:int = 0;
var delaySendLevel:Number = 0.2;
var chorusSendLevel:Number = 0;
var lpf:SiCtrlFilterLowPass = new SiCtrlFilterLowPass();
var cutoff:Number = 1;
var resonance:Number = 0;
// UIs
var keyboard:Sprite;
var keys:KeyDisplay;
var selector:VoiceSelector;
var volume:VolumePanel;
var keyFlag:int;
var clipboard:Text;
// Global Functions
function initializeSiON() : void {
// effector setting
lpf.control(1, 0);
driver.effector.slot0 = [lpf];
driver.effector.slot1 = [new SiEffectStereoDelay(200,0.2,false)];
driver.effector.slot2 = [new SiEffectStereoChorus(20,0.2,4,20)];
// start stream without initializing effectors
driver.play(null, false);
}
function updateCategoly(index:int) : void {
var imax:int = presetVoice.categolies.length;
if (index < 0) index = imax - 1;
else if (index >= imax) index = 0;
categolyIndex = index;
voiceList = presetVoice.categolies[index];
selector.onUpdateCategoly();
volume.onUpdateCategoly();
updateVoice(voiceIndex);
}
function updateVoice(index:int, callFromKnob:Boolean=false) : void {
if (voiceList) {
if (index < 0) index = 0;
else if (index >= voiceList.length) index = voiceList.length - 1;
voiceIndex = index;
selector.updateName();
if (!callFromKnob) volume.updateVoiceIndex();
}
}
function keyOn(index:int) : void {
if ((keyFlag & (1<<index)) == 0) {
keyFlag |= 1<<index;
var trk:SiMMLTrack = driver.noteOn(index + keys.octave*12, voiceList[voiceIndex], 0);
trk.channel.setStreamSend(1, delaySendLevel);
trk.channel.setStreamSend(2, chorusSendLevel);
keys.keyOn(index);
}
}
function keyOff(index:int) : void {
keyFlag &= ~(1<<index);
driver.noteOff(index + keys.octave*12);
keys.keyOff(index);
}
function allNoteOff() : void {
for each (var trk:SiMMLTrack in driver.sequencer.tracks) trk.keyOff();
}
class KeyDisplay extends Sprite {
private var _screenBitmap:Bitmap;
private var _screen:BitmapData = new BitmapData(400, 144, false, 0);
private var _cls:BitmapData = new BitmapData(400, 144, false, 0x202020);
private var _bkeyBase:BitmapData = new BitmapData(320, 120, true, 0);
private var _wkeyPos:Array = [100,120,140,160,180,200,220,240,260,280];
private var _bkeyPos:Array = [112,136,172,194,216,252,276];
private var _wkeyIndex:Array = [0,2,4,5,7,9,11,12,14,16];
private var _bkeyIndex:Array = [1,3,6,8,10,13,15];
private var _wkeyPushed:BitmapData = new BitmapData(20, 120, true, 0x808080ff);
private var _bkeyPushed:BitmapData = new BitmapData(12, 80, true, 0x408080ff);
private var _light:BitmapData = new BitmapData(12, 12, true, 0);
private var _keyFlag:int = 0, _newKeyFlag:int = 0x3000000, _padUpdated:Boolean = false;
public function get octave() : int { return (_keyFlag>>24)+2; }
function KeyDisplay(parent:DisplayObjectContainer, x:Number, y:Number) {
this.x = x;
this.y = y;
parent.addChild(this);
_createBitmap();
addEventListener("enterFrame", _onEnterFrame);
addChild(_screenBitmap = new Bitmap(_screen));
stage.addEventListener("mouseDown", _onMouseDown);
stage.addEventListener("mouseUp", _onMouseUp);
stage.addEventListener("mouseMove", _onMouseMove);
}
public function keyOn(index:int) : void { _newKeyFlag = _newKeyFlag | (1<<index); }
public function keyOff(index:int) : void { _newKeyFlag = _newKeyFlag &~(1<<index); }
public function octUp() : void {
var oct:int = _newKeyFlag >> 24;
if (++oct > 6) oct=6;
_newKeyFlag = (oct<<24) | (_newKeyFlag & 0xffffff);
allNoteOff();
}
public function octDown() : void {
var oct:int = _newKeyFlag >> 24;
if (--oct < 0) oct=0;
_newKeyFlag = (oct<<24) | (_newKeyFlag & 0xffffff);
allNoteOff();
}
private function _createBitmap() : void {
var canvas:Shape = new Shape(), g:Graphics = canvas.graphics, chars:String,
i:int, mat:Matrix = new Matrix(), rc:Rectangle = new Rectangle(0,8,8,4), label:Label;
parent.addChild(canvas);
// white keys
g.clear();
g.lineStyle(2, 0);
mat.createGradientBox(8, 8, Math.PI/2);
g.beginGradientFill("linear", [0x404040,0xf0f0f0], [1,1], [0,255], mat);
g.drawRoundRect(0,-4,20,124,8);
g.endFill();
g.lineStyle(4, 0x808080, 0.25);
g.drawPath(Vector.<int>([1,2]), Vector.<Number>([0,-4, 0,120]));
Style.LABEL_TEXT = 0x666666;
label = new Label(null,0,0,"");
chars = "Q ZXCVBNM,./ W";
for (i=0; i<16; i++) {
mat.identity();
mat.translate(i*20+40, 20);
_cls.draw(canvas, mat);
label.text = chars.charAt(i);
label.draw();
mat.translate(4, 96);
_cls.draw(label, mat);
}
// board
g.clear();
mat.createGradientBox(20, 20, Math.PI/2);
g.beginGradientFill("linear", [0,0x404040,0x202020], [1,1,1], [0,192,255], mat);
g.drawRect(0,0,400,20);
g.endFill();
_cls.draw(canvas);
// octave
label.text = "oct.";
label.draw();
mat.identity();
mat.translate(4, 0);
_cls.draw(label, mat);
for (rc.x=30; rc.x<136; rc.x+=16) _cls.fillRect(rc, 0);
g.clear();
mat.createGradientBox(8, 8, 0);
g.beginGradientFill("radial", [0xff8040,0x800000], [1,0], [0,255], mat);
g.drawCircle(6, 6, 8);
g.endFill();
_light.draw(canvas);
// logo
label.text = "SiON FM Synthesizer WF-1";
label.draw();
mat.identity();
mat.translate(280, -2);
_cls.draw(label, mat);
// black keys
g.clear();
g.beginFill(0x808080, 0.25);
g.drawPath(Vector.<int>([1,2,2,2]), Vector.<Number>([12,0, 16,0, 18,75, 12,82]));
g.endFill();
g.lineStyle(2, 0);
g.beginFill(0x303030);
g.drawRoundRect(0,0,12,80,3);
g.endFill();
g.lineStyle(3, 0x606060, 0.5);
g.drawPath(Vector.<int>([1,2,2]), Vector.<Number>([2,0, 2,73, 8,73]));
g.lineStyle(1, 0xc0c0c0, 0.5);
g.drawPath(Vector.<int>([1,2,2]), Vector.<Number>([2,0, 2,71, 7,71]));
Style.LABEL_TEXT = 0xaaaaaa;
label = new Label(null,0,0,"");
var pos:Array = [-8,14,36,72,96,132,154,176,212,236,272,294,316];
chars = " SDGHJL; ";
for (i=0; i<pos.length; i++) {
mat.identity();
mat.translate(pos[i], 0);
_bkeyBase.draw(canvas, mat);
label.text = chars.charAt(i);
label.draw();
mat.translate(1, 50);
_bkeyBase.draw(label, mat);
}
// Filter pad
label.text = "Filter";
label.draw();
mat.identity();
mat.translate(6, 84);
_cls.draw(label, mat);
_cls.fillRect(new Rectangle(8,104,24,24), 0);
parent.removeChild(canvas);
}
private function _onEnterFrame(e:Event) : void {
if (_keyFlag != _newKeyFlag || _padUpdated) {
_keyFlag = _newKeyFlag;
_padUpdated = false;
_screen.copyPixels(_cls, _cls.rect, _cls.rect.topLeft);
var i:int, mat:Matrix = new Matrix(1,0,0,1,0,20), pt:Point = new Point(40, 20);
for (i=0; i<_wkeyIndex.length; i++) {
if (_keyFlag & (1<<_wkeyIndex[i])) {
mat.tx = _wkeyPos[i];
_screen.draw(_wkeyPushed, mat);
}
}
_screen.copyPixels(_bkeyBase, _bkeyBase.rect, pt);
for (i=0; i<_bkeyIndex.length; i++) {
if (_keyFlag & (1<<_bkeyIndex[i])) {
mat.tx = _bkeyPos[i];
_screen.draw(_bkeyPushed, mat);
}
}
pt.x = octave*16-2;
pt.y = 6;
_screen.copyPixels(_light, _light.rect, pt);
pt.x = int(resonance*23) + 4;
pt.y = 123 - int(cutoff*23);
_screen.copyPixels(_light, _light.rect, pt);
}
}
private var _draggingStart:Point;
private function _onMouseDown(e:MouseEvent) : void {
if (mouseX>4 && mouseX<36 && mouseY>104 && mouseY<136) {
_draggingStart = new Point(mouseX-resonance*50, mouseY+cutoff*50);
}
}
private function _onMouseUp(e:MouseEvent) : void { _draggingStart = null; }
private function _onMouseMove(e:MouseEvent) : void {
if (_draggingStart) {
resonance = (mouseX - _draggingStart.x) * 0.02;
if (resonance < 0) resonance = 0;
else if (resonance > 0.9) resonance = 0.9;
cutoff = (_draggingStart.y - mouseY) * 0.02;
if (cutoff < 0) cutoff = 0;
else if (cutoff > 1) cutoff = 1;
_padUpdated = true;
lpf.control(cutoff, resonance);
}
}
}
class VoiceSelector extends Sprite {
private var _cursor:Bitmap = new Bitmap(new BitmapData(48, 14, true, 0x408080ff));
private var _categolies:Sprite = new Sprite();
private var _voiceName:Label;
function VoiceSelector(parent:DisplayObjectContainer, x:Number, y:Number) {
this.x = x;
this.y = y;
parent.addChild(this);
_categolies.x = 1;
_categolies.y = 18;
addChild(_categolies);
var imax:int = presetVoice.categolies.length, button:PushButton;
for (var i:int=0; i<imax; i++) {
var list:Array = presetVoice.categolies[i],
label:String = (list.name.charAt() == "v") ? list.name.substr(9) : list.name;
button = new PushButton(_categolies, (i&7)*50, (i>>3)*16, label, _onCategolyPushed);
button.setSize(48, 14);
}
(new PushButton(this, 1, 2, "-", function(e:Event) : void { updateVoice(voiceIndex-1); })).setSize(14, 14);
(new PushButton(this, 17, 2, "+", function(e:Event) : void { updateVoice(voiceIndex+1); })).setSize(14, 14);
_categolies.addChild(_cursor);
_voiceName = new Label(this, 33, 0, "SiON preset voices are from VAL-SOUND");
_voiceName.setSize(200, 18);
}
private function _onCategolyPushed(e:Event) : void {
_cursor.x = e.target.x;
_cursor.y = e.target.y;
updateCategoly(int((_cursor.x+10)*0.02) + (int(_cursor.y>8)<<3));
}
public function updateName() : void {
var str:String = ("00"+String(voiceIndex+1)).substr(-3,3) + "; ";
str += voiceList[voiceIndex].name;
_voiceName.text = str;
}
public function onUpdateCategoly() : void {
_cursor.x = (categolyIndex&7)*50;
_cursor.y = (categolyIndex>>3)*16;
}
}
class VolumePanel extends Sprite {
private var _rev:Knob, _cho:Knob, _prg:Knob;
function VolumePanel(parent:DisplayObjectContainer, x:Number, y:Number) {
this.x = x;
this.y = y;
parent.addChild(this);
_prg = _newKnob(this, 12, 0, "Voice", _onChangeVoice);
_rev = _newKnob(this, 372, 0, "Delay", _onChangeEffect);
_cho = _newKnob(this, 372, 60, "Chorus", _onChangeEffect);
_prg.showValue = false;
_rev.value = 20;
function _newKnob(cont:DisplayObjectContainer, x:Number, y:Number, label:String, cb:Function) : Knob {
var ret:Knob = new Knob(cont, x, y, label, cb);
ret.radius = 8;
return ret;
}
}
public function onUpdateCategoly() : void {
_prg.minimum = 0;
_prg.maximum = voiceList.length;
_prg.value = voiceIndex;
_prg.mouseRange = (voiceList.length<20) ? 100 : 200;
}
public function updateVoiceIndex() : void {
_prg.value = voiceIndex;
}
private function _onChangeVoice(e:Event) : void {
updateVoice(int(_prg.value), true);
}
private function _onChangeEffect(e:Event) : void {
delaySendLevel = _rev.value * 0.01;
chorusSendLevel = _cho.value * 0.01;
}
}

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