// forked from umhr's Array,Vector,Vector3D速度比較 /** 同じ長さ、値のArray,Vector,Vector3Dをaddと同じ処理を100万回実行した時の処理時間（ミリ/秒） その２ MacBookPro2.4Gh,OSX 10.5.6 Array0:348//前回と同じ Array1:320//決め打 Vector0:85//前回と同じ Vector1:80//決め打 Vector3D0:623//前回と同じ Vector3D1:17//要素毎に加算 Vector3D2:656//addの代わりの関数を作った Vector3D3:625//addの代わりの関数を作った2 null:6//Vector3Dをnewしてforでまわすだけ。 Vector3Dを要素毎に加算すると異様に早い。 けど、早すぎてちょっと信じられない感じ。 いろいろ検証が必要。 add以外にもいろいろ試してみるといいかも。 */ package { import flash.display.Sprite; import flash.geom.Vector3D; import flash.text.TextField; public class vecor3Dtest extends Sprite { public var _a0a:Array =new Array(0.1,1.2,2.3); public var _a0b:Array =new Array(10,20,30); public var _v3a:Vector3D=new Vector3D(0.1,1.2,2.3); public var _v3b:Vector3D=new Vector3D(10,20,30); public var _v0a:Vector.<Number>=new Vector.<Number>(3); public var _v0b:Vector.<Number>=new Vector.<Number>(3); public function vecor3Dtest():void { var text_field:TextField = new TextField(); text_field.width = stage.stageWidth; text_field.height = stage.stageHeight; stage.addChild(text_field); _v0a[0] = 0.1; _v0a[1] = 1.2; _v0a[2] = 2.3; _v0b[0] = 10; _v0b[1] = 20; _v0b[2] = 30; var _str:String = new String(); _str = "同じ長さ、値のArray,Vector,Vector3Dをaddと同じ処理を100万回実行した時の処理時間（ミリ秒）\r"; _str += "Array0:" + benchMarkj(_a0) + "\r";//366 _str += "Array1:" + benchMarkj(_a1) + "\r";//366 _str += "Vector0:" + benchMarkj(_v0) + "\r";//88 _str += "Vector1:" + benchMarkj(_v1) + "\r";//88 _str += "Vector3D0:" + benchMarkj(_30) + "\r";//615 _str += "Vector3D1:" + benchMarkj(_31) + "\r";//615 _str += "Vector3D2:" + benchMarkj(_32) + "\r";//615 _str += "Vector3D3:" + benchMarkj(_32) + "\r";//615 _str += "null:" + benchMarkj(_00) + "\r";//615 text_field.text = _str; } //100万回関数を実行して、かかった時間をtrace private function benchMarkj(_fn:Function):int { var time:Number = (new Date()).getTime(); _fn(1000000); return (new Date()).getTime() - time; } private function _a0(n:uint):void { var _a0c:Array =new Array(); for (var i:int = 0; i < n; i++) { for (var j:int = 0; j < 3; j++) { _a0c[j] = _a0a[j]+_a0b[j]; } } //trace(_a0c); } private function _a1(n:uint):void { var _a0c:Array =new Array(); for (var i:int = 0; i < n; i++) { _a0c[int(0)] = _a0a[int(0)]+_a0b[int(0)]; _a0c[int(1)] = _a0a[int(1)]+_a0b[int(1)]; _a0c[int(2)] = _a0a[int(2)]+_a0b[int(2)]; } //trace(_a0c); } private function _v0(n:uint):void { var _v0c:Vector.<Number>=new Vector.<Number>(3); for (var i:int = 0; i < n; i++) { for (var j:int = 0; j < 3; j++) { _v0c[j] = _v0a[j]+_v0b[j]; } } //trace(_v0c); } private function _v1(n:uint):void { var _v0c:Vector.<Number>=new Vector.<Number>(3); for (var i:int = 0; i < n; i++) { _v0c[int(0)] = _v0a[int(0)]+_v0b[int(0)]; _v0c[int(1)] = _v0a[int(1)]+_v0b[int(1)]; _v0c[int(2)] = _v0a[int(2)]+_v0b[int(2)]; } //trace(_v0c); } private function _30(n:uint):void { var _v3c:Vector3D=new Vector3D(); for (var i:int = 0; i < n; i++) { _v3c = _v3a.add(_v3b); } //trace(_v3c); } private function _31(n:uint):void { var _v3c:Vector3D=new Vector3D(); for (var i:int = 0; i < n; i++) { _v3c.x = _v3a.x + _v3b.x; _v3c.y = _v3a.y + _v3b.y; _v3c.z = _v3a.z + _v3b.z; } //trace(_v3c); } private function _32(n:uint):void { var _v3c:Vector3D=new Vector3D(); for (var i:int = 0; i < n; i++) { _v3c = vAdd2(_v3a,_v3b) } } private function vAdd2(_v0:Vector3D,_v1:Vector3D):Vector3D{ var _v2:Vector3D=new Vector3D(); _v2.x = _v0.x + _v1.x; _v2.y = _v0.y + _v1.y; _v2.z = _v0.z + _v1.z; return _v2; } private function _33(n:uint):void { var _v3c:Vector3D=new Vector3D(); for (var i:int = 0; i < n; i++) { vAdd3(_v3a,_v3b); } } private function vAdd3(_v0:Vector3D,_v1:Vector3D):void{ _v0.x = _v0.x + _v1.x; _v0.y = _v0.y + _v1.y; _v0.z = _v0.z + _v1.z; } private function _00(n:uint):void { var _v3c:Vector3D=new Vector3D(); for (var i:int = 0; i < n; i++) { } } } }