forked from: なんとかディウスっぽい蟹さん＆ダッカー＆自機 forked from: ♪カニテーマ
カーソルキーで操作できます
// forked from nemu90kWw's なんとかディウスっぽい蟹さん＆ダッカー＆自機 forked from: ♪カニテーマ
// forked from keim_at_Si's ♪カニテーマ from:蟹さん from:from:なんとかディウス
// forked from nemu90kWw's なんとかディウスっぽい蟹さん forked from: なんとかディウスっぽい背景
// forked from gyuque's なんとかディウスっぽい背景
// カーソルキーで操作できます
package
{
import flash.display.*;
import flash.geom.*;
import flash.events.*;
import flash.ui.*;
[SWF(width="320", height="240", backgroundColor="0x000000", frameRate="30")]
public class Nemesis extends Sprite
{
public static const W:int = 320;
public static const H:int = 240;
private var mBgm:BGM = new BGM();
private var mScreenBmp:Bitmap;
private var mScreen:BitmapData = new BitmapData(W, H, false, 0);
private var mGround:BitmapData = new BitmapData(W, H, true, 0);
private var mBack:BitmapData = new BitmapData(W, H, true, 0);
private var mCollisionBmp:BitmapData = new BitmapData(W, H, true, 0);
private var mBGen:MountainGen = new MountainGen(120);
private var mTGen:MountainGen = new MountainGen(120, 1);
private var mBBGen:MountainGen = new MountainGen(180, 1, true);
private var mStarbg:StarBG = new StarBG(W, H, 200);
private var mKani:Kani;
private var mLegs:Array = new Array();
private var mPlayer:Player = new Player();
private var mEnemyList:Array = new Array();
private var count:int = 0;
function Nemesis()
{
mScreenBmp = new Bitmap(mScreen);
addChild(mScreenBmp);
// addChild(mPlayer);
mBGen.step();
mTGen.step();
for(var i:int = 0; i < W; i++)
{
mBGen.step();
mTGen.step();
mBBGen.step();
mBGen.draw(mGround, i, 120);
mTGen.draw(mGround, i, 0, false);
mBBGen.draw(mBack, i, 60);
}
mLegs.push(new Leg(-72, 1));
mLegs.push(new Leg( 0, 1));
mLegs.push(new Leg( 72, 1));
mLegs.push(new Leg(-72, -1));
mLegs.push(new Leg( 0, -1));
mLegs.push(new Leg( 72, -1));
mKani = new Kani(mLegs);
addEventListener(Event.ENTER_FRAME, onEnterFrame);
stage.addEventListener(KeyboardEvent.KEY_DOWN, Key.onKeyDownHandler);
stage.addEventListener(KeyboardEvent.KEY_UP, Key.onKeyUpHandler);
mBgm.play();
}
private function onEnterFrame(e:Event):void
{
var leg:Leg;
var enemy:Enemy;
mStarbg.main();
mKani.main();
mPlayer.main();
if(count % 600 == 30) {
addEnemy(new Ducker(false));
addEnemy(new Ducker(true));
}
for each(enemy in mEnemyList) {
enemy.main();
}
if(count % 3 == 0) {
scroll(1);
}
if(count % 7 == 0) {
mBack.scroll(-1, 0);
mBack.fillRect(new Rectangle(W-1, 0, 1, H), 0);
mBBGen.step();
mBBGen.draw(mBack, W-1, 60);
}
count++;
//描画
var matrix:Matrix = new Matrix();
mCollisionBmp.fillRect(new Rectangle(0, 0, W, H), 0);
matrix.translate(mKani.x, mKani.y);
mCollisionBmp.draw(mKani, matrix);
for each(leg in mLegs)
{
matrix.identity();
matrix.translate(leg.x, leg.y);
mCollisionBmp.draw(leg.sprite, matrix);
}
for each(enemy in mEnemyList) {
matrix.identity();
matrix.scale(enemy.scaleX, enemy.scaleY);
matrix.translate(enemy.x, enemy.y);
mCollisionBmp.draw(enemy, matrix);
}
mCollisionBmp.copyPixels(mGround, mGround.rect, new Point(0, 0), null, null, true);
mScreen.fillRect(mScreen.rect, 0);
mStarbg.draw(mScreen);
mScreen.copyPixels(mBack, mBack.rect, new Point(0, 0));
matrix.identity();
matrix.translate(mPlayer.x, mPlayer.y);
if(mPlayer.visible) {mScreen.draw(mPlayer, matrix);}
mScreen.copyPixels(mCollisionBmp, mCollisionBmp.rect, new Point(0, 0));
//当たり判定
if(mCollisionBmp.getPixel32(mPlayer.x, mPlayer.y) != 0x00000000 && mPlayer.invincible == 0) {
mPlayer.miss();
}
for each(leg in mLegs) {
leg.hitflag = mGround.getPixel32(Math.min(Math.max(0, leg.x), W-1), leg.y) != 0x00000000;
}
for each(enemy in mEnemyList) {
enemy.hitflag = mGround.getPixel32(Math.min(Math.max(0, enemy.x), W-1), enemy.y) != 0x00000000;
}
}
public function addEnemy(enemy:Enemy):void
{
enemy.player = mPlayer;
mEnemyList.push(enemy);
}
public function scroll(vx:int):void
{
mGround.scroll(-vx, 0);
mGround.fillRect(new Rectangle(W-vx, 0, vx, H), 0);
var i:int;
for (i = 0; i < vx; i++)
{
mBGen.step();
mTGen.step();
mBGen.draw(mGround, W-vx+i, 120);
mTGen.draw(mGround, W-vx+i, 0, false);
}
mKani.x -= vx;
for each(var leg:Leg in mLegs) {leg.x -= vx;}
for each(var enemy:Enemy in mEnemyList) {enemy.x -= vx;}
}
}
}
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.ui.*;
import flash.media.*;
// --------------------------------//
// 自機
// --------------------------------//
class Player extends Sprite
{
private var count:int = 0;
public var invincible:int;
function Player()
{
var g:Graphics = graphics;
g.beginFill(0xFFFFFF);
g.drawPath(Vector.<int>([1,2,2]),
Vector.<Number>([
-8, -5,
-8, 5,
10, 0,
]));
g.endFill();
init()
}
public function init():void
{
x = Nemesis.W/2-40;
y = Nemesis.H/2;
invincible = 60;
}
public function main():void
{
if(Key.isLeft == true) {x -= 3;}
if(Key.isRight == true) {x += 3;}
if(Key.isUp == true) {y -= 3;}
if(Key.isDown == true) {y += 3;}
x = Math.min(Math.max(10, x), Nemesis.W-10);
y = Math.min(Math.max(10, y), Nemesis.H-10);
if(invincible > 0)
{
if(count % 2 == 0) {visible = false;}
else {visible = true;}
invincible--;
}
else {
visible = true;
}
count++;
}
public function miss():void
{
init();
}
}
class Key
{
public static var isUp:Boolean = false;
public static var isDown:Boolean = false;
public static var isLeft:Boolean = false;
public static var isRight:Boolean = false;
public static var isShot:Boolean = false;
public static function onKeyDownHandler(e:KeyboardEvent):void
{
switch(e.keyCode) {
case Keyboard.UP: Key.isUp = true; break;
case Keyboard.DOWN: Key.isDown = true; break;
case Keyboard.LEFT: Key.isLeft = true; break;
case Keyboard.RIGHT: Key.isRight = true; break;
case Keyboard.SHIFT: Key.isShot = true; break;
}
}
public static function onKeyUpHandler(e:KeyboardEvent):void
{
switch(e.keyCode) {
case Keyboard.UP: Key.isUp = false; break;
case Keyboard.DOWN: Key.isDown = false; break;
case Keyboard.LEFT: Key.isLeft = false; break;
case Keyboard.RIGHT: Key.isRight = false; break;
case Keyboard.SHIFT: Key.isShot = false; break;
}
}
}
// --------------------------------//
// 敵
// --------------------------------//
class Enemy extends Sprite
{
public var player:Player;
public var hitflag:Boolean;
public function main():void {}
}
class Ducker extends Enemy
{
private var head:Sprite;
private var leg:Sprite;
private var count:int = 0;
private var wait:int = 0;
function Ducker(reverse:Boolean)
{
if(reverse == false) {scaleY = 1;}
if(reverse == true) {scaleY = -1;}
var g:Graphics = graphics;
head = new Sprite();
g = head.graphics;
g.beginFill(0xE8F0F8);
g.drawRect(-16, -5, 10, 2);
g.endFill();
g.beginFill(0x308040);
g.lineStyle(1, 0x80F0C0);
g.drawPath(Vector.<int>([1,2,2,2,2]),
Vector.<Number>([
-1, -6,
8, -12,
2, -8,
10, -5,
-1, -1
]));
g.endFill();
g.beginFill(0x308040);
g.lineStyle(1, 0x80F0C0);
g.drawCircle(0, -4, 6);
g.endFill();
head.x = 4;
head.y = -8;
addChild(head);
leg = new Sprite();
g = leg.graphics;
g.beginFill(0x308040);
g.lineStyle(1, 0x80F0C0);
g.drawPath(Vector.<int>([1,2,2,2,2,2,2,2,2]),
Vector.<Number>([
-6, 1,
7, 1,
4, -1,
7, -5,
3, -9,
0, -9,
6, -5,
0, -1,
-6, 1
]));
addChild(leg);
x = Nemesis.W+30;
y = Nemesis.H/2+100*scaleY;
}
override public function main():void
{
if(wait == 0)
{
if(count % 9 == 0) {leg.x=0;leg.y=-3;}
if(count % 9 == 3) {leg.x=2;leg.y=0;}
if(count % 9 == 6) {leg.x=-2;leg.y=0;}
if(Math.random() < 0.1) {
if(x < player.x-40) {scaleX = 1;}
else if(x < player.x-30 && scaleX == -1) {wait = 30;}
if(x > player.x+40) {scaleX = -1;}
else if(x > player.x+30 && scaleX == 1) {wait = 30;}
}
x += 3*scaleX;
if(hitflag == false) {
y += 2*scaleY;
}
else {
y -= 2*scaleY;
}
}
else {
if(hitflag == false) {
y += 2*scaleY;
}
if(wait == 30) {head.rotation = 25;}
if(wait == 25) {head.rotation = 50;}
if(wait == 6) {head.rotation = 25;}
if(wait == 1) {head.rotation = 0;}
wait--;
}
count++;
}
}
class Bullet extends Enemy
{
}
// --------------------------------//
// カニ
// --------------------------------//
class Kani extends Sprite
{
public var body:Sprite = new Sprite();
public var legs:Array = new Array();
public var auto:Boolean;
public var dir:String = "none";
public var timer:int;
public var dance:int;
function Kani(legs:Array)
{
x = 400;
y = 120;
auto = false;
timer = 100;
this.legs = legs;
for each(var leg:Leg in legs)
{
leg.parent = this;
leg.x = x+leg.offset - 25+Math.random()*50;
leg.y = 120 + 100*leg.invert - 25+Math.random()*50;
}
body.graphics.beginFill(0xC060C0);
body.graphics.lineStyle(2, 0xFF80FF);
body.graphics.drawRect(-12, -12, 24, 24);
body.graphics.endFill();
addChild(body);
}
public function main():void
{
var leg:Leg;
/*
if(auto == false)
{
if(Key.isLeft == true) {dir = "left"; timer = 90;}
else if(Key.isRight == true) {dir = "right"; timer = 90;}
else {dir = "none";}
if(Key.isSpace == true && dance == 0) {dance = 20; timer = 90;}
timer--;
if(timer == 0) {auto = true;}
}
*/
if(timer == 0)
{
if(dir == "none")
{
if(x < Nemesis.W/2) {dir = "right";}
else {dir = "left";}
}
else {
if(x < 60 && dir != "right") {
timer = 60;
}
if(x > 280 && dir != "left") {
timer = 60;
}
}
}
else {
dir = "none";
if(timer == 40) {
dance = 20;
}
timer--;
}
/*
if(Key.isLeft == true || Key.isRight == true)
{
auto = false;
timer = 90;
}
*/
if(dir == "left") {x -= 1;}
if(dir == "right") {x += 1;}
if(dir != "none") {
for each(leg in legs) {
leg.move(dir);
}
}
if(dance > 0)
{
if(dance > 15) {body.x = 2;}
else if(dance > 10) {body.x = 0;}
else if(dance > 5) {body.x = -2;}
else {body.x = 0;}
dance--;
}
graphics.clear();
for each(leg in legs)
{
graphics.lineStyle(5, 0xFF80FF);
graphics.moveTo(leg.offset/8, 10*leg.invert);
graphics.lineTo((leg.x-x), (leg.y-y)-60*leg.invert);
graphics.endFill();
}
}
}
class Leg
{
public var parent:Kani;
public var sprite:Sprite;
public var x:Number;
public var y:Number;
public var offset:Number;
public var invert:int;
public var hitflag:Boolean;
public var moveflag:Boolean;
public var gear:int;
function Leg(offset:Number, invert:int)
{
this.offset = offset;
this.invert = invert;
sprite = new Sprite();
var g:Graphics = sprite.graphics;
g.clear();
g.beginFill(0xC060C0);
g.lineStyle(0, 0xFF80FF);
g.drawPath(Vector.<int>([1,2,2,2,2,2,2,2]),
Vector.<Number>([
0, -3*invert,
-4, -36*invert,
-4, -52*invert,
-1.5, -60*invert,
1.5, -60*invert,
4, -52*invert,
4, -36*invert,
0, -3*invert
]));
g.endFill();
}
public function move(dir:String):void
{
var threshold_l:Number = parent.x+offset + 25;
var threshold_r:Number = parent.x+offset - 25;
if(moveflag == false) {
if(threshold_l < x || threshold_r > x)
{
moveflag = true;
gear = -18;
}
if(threshold_r > x)
{
moveflag = true;
gear = 18;
}
}
if(moveflag == true)
{
if(dir == "left" && threshold_l-40 < x)
{
x -= 2;
if(gear < 0) {
y -= 2.2 * invert;
}
else {
y += 2.2 * invert;
if(hitflag == true) {
moveflag = false;
}
}
gear++;
}
else if(dir == "right" && threshold_r+40 > x)
{
x += 2;
if(gear > 0) {
y -= 2.2 * invert;
}
else {
y += 2.2 * invert;
if(hitflag == true) {
moveflag = false;
}
}
gear--;
}
}
}
}
// --------------------------------//
// 背景
// --------------------------------//
class MountainGen
{
private var mPrevBuffer:Array;
private var mHeight:int;
private var mCount:int = 100;
private var tmpBuffer:Array;
private var mGenFunc:Function;
private var mDark:Boolean;
function MountainGen(h:int, generator:int = 0, dark:Boolean = false)
{
mDark = dark;
mHeight = h;
mGenFunc = generator ? genWav2 : genWav;
mPrevBuffer = new Array(h);
tmpBuffer = new Array(h);
}
public function draw(b:BitmapData, x:int, y:int, rev:Boolean = true):void
{
var i:int;
for (i = 0;i < mHeight;i++) {
if (tmpBuffer[i]) {
var c:int = tmpBuffer[i];
b.setPixel32(x, rev ? (y+mHeight-i) : (y+i), makeColor(c));
}
}
}
private function makeColor(c:int):uint
{
if (mDark)
return 0xff000000 | (c/7+5) | ((c/7 + 80)<<16) | ((c/6+50) << 8);
return 0xff000000 | (c/3+11) | ((c/5 + 170)<<16) | ((c/2+60) << 8);
}
public function step():void
{
var t:Number = Number(mCount) * 0.025;
var h:int = mGenFunc(t) * mHeight;
var i:int, k:int, m:int;
for (i = 0;i < mHeight;i++) {
mPrevBuffer[i] = tmpBuffer[i];
}
for (i = 0;i < mHeight;i++) {
tmpBuffer[i] = (i < h) ? (Math.random()*80 + 80) : 0;
if (tmpBuffer[i]) {
if (mPrevBuffer[i])
tmpBuffer[i] = (tmpBuffer[i] + mPrevBuffer[i]*7)/8;
if (mPrevBuffer[i] == 0 || i == (h-1)) {
m = 50;
for (k = i;k >= 0 && m > 0;k--, m-=4) {
if (m > 33) m--;
tmpBuffer[k] += m;
m += Math.random()*7;
}
}
if (mPrevBuffer[i+1] && i == (h-1)) {
m = -48;
for (k = i;k >= 0 && m < 0;k--, m++) {
tmpBuffer[k] += m;
if (tmpBuffer[k]<1) tmpBuffer[k] = 1;
}
}
}
}
for (i = 0;i < mHeight;i++)
tmpBuffer[i] = (tmpBuffer[i] < 0) ? 0 : (tmpBuffer[i] > 255) ? 255 : tmpBuffer[i];
mCount++;
}
private static function genWav(t:Number, nest:int = 0):Number
{
var v:Number = Math.sin(t);
v += Math.sin(t*3) * 0.1;
v += Math.cos(0.1 + t*10) * 0.02;
v *= Math.sin(t*0.1);
if (nest < 5)
v += genWav2(t*2.0, 1+nest)*0.5;
v = v*0.2 + 0.22;
return (v<0) ? 0 : (v>1) ? 1 : v;
}
private static function genWav2(t:Number, nest:int = 0):Number
{
var v:Number = Math.sin(t);
v += Math.cos(t*3) * 0.1;
v += Math.cos(0.1 + t*9) * 0.02;
v *= Math.cos(0.2 + t*0.15);
if (nest < 5)
v += genWav2(t*2.0, 1+nest)*0.5;
v = v*0.2 + 0.23;
return (v<0) ? 0 : (v>1) ? 1 : v;
}
}
class StarBG
{
private var mWidth:int;
private var mHeight:int;
private var mStars:Array;
private var mN:int;
private var mCount:int = 0;
function StarBG(w:int, h:int, n:int)
{
mWidth = w;
mHeight = h;
mN = n;
mStars = new Array(n);
for (var i:int = 0;i < n;i++) {
mStars[i] = {
x : Math.random()*w, y : Math.random()*h, speed : -Math.random()*1.5-0.5,
color : ((Math.random()*0xC0+0x40)<<8)+((Math.random()*0xC0+0x40)<<16)+(Math.random()*0xC0+0x40),
blink : Math.floor(Math.random())*80+40
};
}
}
public function main():void
{
var n:int = mN;
for each(var star:Object in mStars)
{
star.x += star.speed;
if(star.x < 0)
{
star.x += mWidth;
star.y = Math.random()*mHeight;
star.speed = -Math.random()*1.5-0.5;
}
}
mCount++;
}
public function draw(b:BitmapData):void
{
for each(var star:Object in mStars)
{
if((mCount % star.blink) == 1) {b.setPixel(star.x, star.y, 0xFFFFFF);}
else {b.setPixel(star.x, star.y, star.color);}
}
}
}
// --------------------------------//
// 音
// --------------------------------//
class BGM
{
private var _sound:Sound = null;
private var _module:TinySiOPM;
private var _sequencer:Sequencer;
public function BGM(){
_module = new TinySiOPM(2048, 1024, _onSoundFrame);
}
public function play() : void {
var A:String = "$v10@11s32w24o4l4[12ccrc2cc|cr2]r6v12@0[4ccrc2cccr6]";
var B:String = "$l8[12rc|rc4]c1c1[5c2][7rc]c1c1[7c2]";
var Bm:String = "v6@0s0o6k64@o1"+B;
var Bc:String = "v2@0s12o5w12@i4"+B;
var Bn:String = "v12@3s24o0k6"+B;
var C:String = "$v6@3s48o0l2[168d] [4rdrds6d4s48rdrds6d4s48rddd]";
var Sa:String = "[4c>cfcgc<c>cfcgc<c>c<]";
var Sb:String = "[4g>g<c>g<d>g<g>g<c>g<d>g<g>g<]";
var S1:String = "$p2v6@1s32l2o6k6["+Sa+"k-26]k6"+Sa+"o5s24[4l4gga+g2bl2g<c>g<c+>g<d>f]";
var S2:String = "$p6v6@1s32l2o5k3["+Sb+"k-29]k3"+Sb+"o4s16[4l4gga+g2bl2g<c>g<c+>g<d>f]";
var S3:String = "$p3v4@1s24l2o5k3["+Sa+"k-29]k3"+Sa+"o4s24[4l4gga+g2bl2g<c>g<c+>g<d>f]";
var S4:String = "$p5v4@1s24l2o4k0["+Sb+"k-32]k0"+Sb+"o3s16[4l4gga+g2bl2g<c>g<c+>g<d>f]";
var M1:String = "$p5v4@1s4o7k4[[4c4>a+24<]k-28]k4[4c4>a+24<] v7@1s20o6 [3g30f2]g20a+2g10";
var M2:String = "$p3v12@2s4o6k4[[4c4>a+24<]k-28]k4[4c4>a+24<]v12@2s20o5[3g30f2]g20a+2g10";
var M3:String = "$v7@2s4o6k2[[4g4f24]k-30]k2[4g4f24] v7@2s20o4 [3d30c2]d20f2d10";
var Mn:String = "$v3@3s4o0k8[12c4c24] v12k1s20 [3c30c2]c20c2c10";
_sequencer = new Sequencer(3, [A,Bm,Bc,Bn,C,S1,S2,S3,S4,M1,M2,M3,Mn]);
if(_sound != null) {
_sound.removeEventListener("sampleData", _onStream);
}
_sound = new Sound();
_sound.addEventListener("sampleData", _onStream);
_sound.play();
}
private function _onSoundFrame() : void {
if (_sequencer.onSoundFrame()) {
}
}
private function _onStream(e:SampleDataEvent) : void {
var moduleOut:Vector.<Number> = _module.render();
for (var i:int = 0; i<4096; i++) {
e.data.writeFloat(moduleOut[i]);
}
}
}
// MML Sequencer
// http://wonderfl.kayac.com/user/keim_at_Si
//--------------------------------------------------
class Sequencer {
private var _tracks:Array, _count:int=Track.speed+1;
function Sequencer(speed:int, mmls:Array) { Track.speed=speed; mml=mmls; }
public function onSoundFrame() : Boolean {
if (++_count == Track.speed) {
for each (var tr:Track in _tracks) tr.execute();
_count = 0;
return true;
}
return false;
}
public function set mml(list:Array) : void {
_tracks = [];
for each (var seq:String in list) _tracks.push(new Track(seq));
_count = 0;
}
}
class Track {
static public var codeA:int="a".charCodeAt(), nt:Array=[9,11,0,2,4,5,7], speed:int=3;
public var oct:int, len:int, tl:int, dt:int, cnt:int, seq:String, sgn:int, stac:Array, osc:Osc;
private var _rex:RegExp=/(@i|@o|[a-gkloprsvw<>[|\]$@])([#+])?(-?\d+)?/g;
function Track(seq:String) {
osc = (new Osc()).reset().activate(false);
reset(seq);
}
public function reset(seq_:String) : void {
seq=seq_; oct=5; len=4; tl=256; dt=0; cnt=0; sgn=0; _rex.lastIndex=0; stac=[];
}
public function execute() : void {
if (--cnt <= 0) {
for (var i:int=0; i<100; i++) {
var res:* = _rex.exec(seq);
if (!res) {
if (sgn) { _rex.lastIndex = sgn; continue; }
else { cnt = int.MAX_VALUE; break; }
}
var cmd:int = res[1].charCodeAt();
if (cmd>=codeA && cmd<=codeA+6) {
cnt = (res[3]) ? int(res[3]) : len;
osc.len = cnt * speed;
osc.pt = ((nt[cmd-codeA]+oct*12+((res[2])?1:0))<<4) + dt;
osc.tl = tl;
break;
} else if (res[1] == 'r') {
cnt = (res[3]) ? int(res[3]) : len;
break;
} else {
switch(res[1]){
case 'k': dt = int(res[3]); break;
case 'l': len = int(res[3]); break;
case 'o': oct = int(res[3]); break;
case 'v': tl = TinySiOPM.log(int(res[3])*0.0625); break;
case '<': oct++; break;
case '>': oct--; break;
case '@': osc.ws = int(res[3]); break;
case 's': osc.dr = int(res[3])<<2; break;
case 'w': osc.sw = -int(res[3]); break;
case 'p': osc.pan = (int(res[3])<<4)-64; break;
case '@i': osc.mod = int(res[3]); break;
case '@o': osc.out = int(res[3]); break;
case '$': sgn = _rex.lastIndex; break;
case '[': stac.unshift({p:_rex.lastIndex,c:((res[3])?int(res[3]):2),j:0}); break;
case '|': if (stac[0].c == 1) { _rex.lastIndex = stac[0].j; stac.shift(); } break;
case ']':
stac[0].j = _rex.lastIndex;
if (--stac[0].c == 0) stac.shift();
else _rex.lastIndex = stac[0].p;
break;
}
}
}
}
}
}
class TinySiOPM {
private var _output:Vector.<Number>, _zero:Vector.<int>, _pipe:Vector.<int>;
private var _pitchTable:Vector.<int> = new Vector.<int>(2048, true);
private var _logTable:Vector.<int> = new Vector.<int>(6144, true);
private var _panTable:Vector.<Number> = new Vector.<Number>(129, true);
private var _bufferSize:int, _callbackFrams:int, _onSoundFrame:Function;
// Pass the buffer size and the function calls in each frame.
function TinySiOPM(bufferSize:int=2048, callbackFrams:int=1024, onSoundFrame:Function=null) {
var i:int, j:int, p:Number, v:Number, t:Vector.<int>, ft:Array=[0,1,2,3,4,5,6,7,7,6,5,4,3,2,1,0];
for (i=0, p=0; i<192; i++, p+=0.00520833333) // create pitchTable[128*16]
for(v=Math.pow(2, p)*12441.464342886, j=i; j<2048; v*=2, j+=192) _pitchTable[j] = int(v);
for (i=0; i<32; i++) _pitchTable[i] = (i+1)<<6; // [0:31] for white noize
for (i=0, p=0.0078125; i<256; i+=2, p+=0.0078125) // create logTable[12*256*2]
for(v=Math.pow(2, 13-p), j=i; j<3328; v*=0.5, j+=256) _logTable[j+1] = -(_logTable[j]=int(v));
for (i=3328; i<6144; i++) _logTable[i] = 0; // [3328:6144] is 0-fill area
for (i=0, p=0; i<129; i++, p+=0.01217671571) _panTable[i]=Math.sin(p)*0.5; // pan table;
for (t=Osc.createTable(10), i=0, p=0; i<1024; i++, p+=0.00613592315) t[i] = log(Math.sin(p)); // sin=0
for (t=Osc.createTable(10), i=0, p=0.75; i<1024; i++, p-=0.00146484375) t[i] = log(p); // saw=1
for (t=Osc.createTable(5), i=0; i<16; i++) t[i+16] = (t[i] = log(ft[i]*0.0625)) + 1; // famtri=2
for (t=Osc.createTable(15), i=0; i<32768; i++) t[i] = log(Math.random()-0.5); // wnoize=3
for (i=0; i<8; i++) for (t=Osc.createTable(4), j=0; j<16; j++) t[j] = (j<=i) ? 192 : 193; // pulse=4-11
_zero = new Vector.<int>(bufferSize, true); // allocate zero buffer
_pipe = new Vector.<int>(bufferSize, true); // allocate fm pipe buffer
_output = new Vector.<Number>(bufferSize*2, true); // allocate stereo out
_bufferSize = bufferSize;
_callbackFrams = callbackFrams;
_onSoundFrame = onSoundFrame; // set parameters
for (i=0; i<bufferSize; i++) { _pipe[i]=_zero[i]=0; } // clear buffers
}
// calculate index of logTable
static public function log(n:Number) : int {
return (n<0) ? ((n<-0.00390625) ? (((int(Math.log(-n) * -184.66496523 + 0.5) + 1) << 1) + 1) : 2047)
: ((n> 0.00390625) ? (( int(Math.log( n) * -184.66496523 + 0.5) + 1) << 1) : 2046);
}
// Returns stereo output as Vector.<Number>(bufferSize*2).
public function render() : Vector.<Number> {
var i:int, j:int, ph:int, dph:int, mod:int, sh:int, tl:int, lout:int, v:int, imax:int,
osc:Osc, tm:Osc, l:Number, r:Number, wv:Vector.<int>, fm:Vector.<int>, base:Vector.<int>,
out:Vector.<int>=_pipe, lt:Vector.<int>=_logTable, stereoOut:Vector.<Number> = _output;
imax = _bufferSize<<1;
for (i=0; i<imax; i++) stereoOut[i] = 0;
for (imax=_callbackFrams; imax<=_bufferSize; imax+=_callbackFrams) {
if (_onSoundFrame!=null) _onSoundFrame();
tm = Osc._tm;
for (osc=tm.n; osc!=tm; osc=osc.update()) {
dph=_pitchTable[osc.pt]; ph=osc.ph; mod=osc.mod+10; sh=osc.sh; tl=osc.tl; wv=osc.wv;
fm=(osc.mod==0)?_zero:_pipe; base=(osc.out!=2)?_zero:_pipe;
for (i = imax-_callbackFrams; i < imax; i++) {
v = ((ph + (fm[i] << mod))& 0x3ffffff) >> sh;
lout = wv[v] + tl;
out[i] = lt[lout] + base[i];
ph = (ph + dph) & 0x3ffffff;
}
osc.ph = ph;
if (osc.out==0) {
l = _panTable[64-osc.pan] * 0.0001220703125;
r = _panTable[64+osc.pan] * 0.0001220703125;
for (i=imax-_callbackFrams, j=i*2; i<imax; i++) {
stereoOut[j] += out[i]*l; j++;
stereoOut[j] += out[i]*r; j++;
}
}
}
}
return stereoOut;
}
// note on
public function noteOn(pitch:int, length:int=0, vol:Number=0.5, wave:int=0, decay:int=6, sweep:int=0, pan:int=0) : Osc {
var osc:Osc = Osc.alloc().reset();
osc.pt = pitch;
osc.len = length;
osc.tl = log(vol);
osc.ws = wave;
osc.dr = decay<<2;
osc.sw = sweep;
osc.pan = pan;
return osc.activate(true);
}
}
class Osc {
// create new wave table and you can refer the table by '@' command.
static public function createTable(b:int) : Vector.<int> {
_w.push(new Vector.<int>(1<<b,true)); _s.push(26-b);
return _w[_w.length-1];
}
static public var _w:Array=[], _s:Array=[], _fl:Osc=new Osc(), _tm:Osc=new Osc();
static public function alloc():Osc{ if(_fl.p==_fl)return new Osc();var r:Osc=_fl.p;_fl.p=r.p;r.p.n=_fl;return r; }
public function into(x:Osc):Osc{ p=x.p;n=x;p.n=this;n.p=this;return this; }
public var p:Osc, n:Osc, fl:Osc, pt:int, len:int, ph:int;
public var tl:int, sw:int, dr:int, wv:Vector.<int>, sh:int, mod:int, out:int, pan:int;
public function set ws(t:int) : void { wv=_w[t]; sh=_s[t]; }
public function Osc() { p = n = this; }
public function update() : Osc { tl+=dr; pt+=sw; pt&=2047; return (--len==0||tl>3328) ? (inactivate().n) : n; }
public function reset() : Osc { ph=0; pt=0; len=0; tl=3328; sw=0; dr=24; pan=0; ws=0; mod=0; out=0; return this; }
public function activate(autoFree:Boolean=false) : Osc { into(_tm); fl=(autoFree)?_fl:null; return this; }
public function inactivate() : Osc { tl=3328; if(!fl)return this; var r:Osc=p; p.n=n; n.p=p; into(fl); return r; }
public function isActive() : Boolean { return (tl<3328); }
}