複数電荷の電荷・電位
/**
* Copyright irobutsu ( http://wonderfl.net/user/irobutsu )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/7Ocb
*/
package{
import flash.system.*;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.utils.IDataInput;
import flash.accessibility.Accessibility;
import flash.display.Sprite;
import flash.display.Graphics;
[SWF(width="400", height="400",frameRate="120", backgroundColor=0xffffff)]
public class charges extends Sprite
{
private var chgFlgV:Boolean=false;
private var chgFlgE:Boolean=false;
private var hankei:int=10;
private var Q:Charges;
private var nowDragQ:int;
private var sbEE:Tsumami;
private var ttM:ThreeToggle;
private var cbE:Check;
private var cbV:Check;
private var btC:PushButton;
private var w:int=400;
private var h:int=364;
private var XX:int;
public function charges():void {
Q=new Charges(w,h);
nowDragQ=-1;
var i:int;
A=new Vector.<Vector.<int>>(w+1);
V=new Vector.<Vector.<int>>(w+1);
for( i=0; i <= w; i++ ) {
A[i]=new Vector.<int>(h+1);
V[i]=new Vector.<int>(h+1);
}
addEventListener("change",changeEvt);
addEventListener("update",updateEvt);
addEventListener("allerase",alleraseEvt);
sbEE=new Tsumami(this,0,-100,100,200,382,200,"外部電場↑=");
ttM=new ThreeToggle("正電荷を加える(ドラッグで移動）","負電荷を加える(ドラッグで移動）","電荷を消す（ドラッグ不可）",0,382,200);
addChild(ttM);
cbE=new Check(true,0,364,140,"電気力線を描く",0xff0000);
addChild(cbE);
cbV=new Check(true,140,364,140,"等電位線を描く",0xaa00);
addChild(cbV);
btC=new PushButton(280,364,120,"すべて消去");
addChild(btC);
addEventListener(Event.ENTER_FRAME,calcWriteOneLine);
stage.addEventListener(MouseEvent.MOUSE_DOWN, mPressed);
stage.addEventListener(MouseEvent.MOUSE_UP, mReleased);
stage.addEventListener(MouseEvent.MOUSE_MOVE, mMove);
update();
}
public function alleraseEvt(e:Event):void {
var i:int;
for( i=0; i < Q.size(); i++ ) {
removeChild(Q.C(i));
}
Q.deleteAll();
chgFlgE=true; chgFlgV=true;
update();
}
public function updateEvt(e:Event):void {
update();
}
public function update():void {
write();
// Q.drawMarks(graphics);
ttM.update();
cbE.update();
cbV.update();
}
public function mMove( e:MouseEvent ):void {
}
public function mPressed( e:MouseEvent ):void {
var mx:int=e.stageX;
var my:int=e.stageY;
var i:int;
if( my<0 || my >= h || mx<0 || mx>=w ) {
return;
}
for( i=0; i < Q.size(); i++ ) {
if( Q.hitTest(i,mx,my) ) {
if( ttM.value()==2 ) {
nowDragQ=-1;
chgFlgE=true; chgFlgV=true;
removeChild(Q.C(i));
Q.deleteOne(i);
update();
} else {
nowDragQ=i;
Q.startDrag(i);
}
return ;
}
}
if( ttM.value()==0 ) {
Q.addNew(mx-hankei,my-hankei,1,this);
chgFlgE=true; chgFlgV=true;
} else if( ttM.value()==1 ) {
Q.addNew(mx-hankei,my-hankei,-1,this);
chgFlgE=true; chgFlgV=true;
}
Q.C(Q.size()-1).update();
dispatchEvent(new Event("update"));
return;
}
public function mReleased( e:MouseEvent ):void {
if( nowDragQ>=0 ) {
Q.endDrag(nowDragQ);
nowDragQ=-1;
chgFlgE=true; chgFlgV=true;
dispatchEvent(new Event("update"));
}
}
public function write():void { XX=0; }
private var SQX:Vector.<Vector.<int>>;
private var SQY:Vector.<Vector.<int>>;
private var DX:Vector.<Vector.<int>>;
private var DY:Vector.<Vector.<int>>;
public function calcWriteOneLine(e:Event):void {
var YY:int;
var i:int;
var c:int;
var l:int=Q.size();
if( XX<0 ) {
return;
}
if( XX== 0 ) {
Vmin=1;
Vmax=0;
graphics.clear();
graphics.lineStyle(1,0xffffff);
graphics.beginFill(0xffffff);
graphics.drawRect(0,0,w,h);
graphics.endFill();
if( l!=0 ) {
SQX=new Vector.<Vector.<int>>(l)
SQY=new Vector.<Vector.<int>>(l)
DX=new Vector.<Vector.<int>>(l)
DY=new Vector.<Vector.<int>>(l)
for(i=0; i< l ; i++ ) {
DX[i]=new Vector.<int>(w+1);
DY[i]=new Vector.<int>(h+1);
SQX[i]=new Vector.<int>(w+1);
SQY[i]=new Vector.<int>(h+1);
var j:int;
for( j=0 ; j<=w ; j++) {
DX[i][j]=j-Q.X(i);
SQX[i][j]=DX[i][j]*DX[i][j];
}
for( YY=0; YY<=h ; YY++) {
DY[i][YY]=YY-Q.Y(i);
SQY[i][YY]=DY[i][YY]*DY[i][YY];
}
}
}
}
if( cbE.isChecked() ) {
var BunsiReal:Number=1;
var BunsiIm:Number=0;
var BunboReal:Number=1;
var BunboIm:Number=0;
var FiveOverPi:Number=5.0/Math.PI;
var EEX:Number=0.001*sbEE.value()*XX;
for( YY=0; YY <= h; YY++ ) {
BunsiReal=1;
BunsiIm=0;
var NReal:Number;
for( i=0; i<l ; i++ ) {
var DXi:Number=DX[i][XX];
var DYi:Number=DY[i][YY];
if( Q.Q(i)>0 ) {
NReal= DXi*BunsiReal-DYi*BunsiIm;
BunsiIm= DXi*BunsiIm+DYi*BunsiReal;
BunsiReal=NReal;
} else {
NReal= DXi*BunsiReal+DYi*BunsiIm;
BunsiIm= DXi*BunsiIm-DYi*BunsiReal;
BunsiReal=NReal;
}
}
if( EEX != 0.0 ) {
var Mcos:Number=Math.cos(EEX);
var Msin:Number=Math.sin(EEX);
NReal=BunsiReal*Mcos-BunsiIm*Msin;
BunsiIm=Msin*BunsiReal+Mcos*BunsiIm;
BunsiReal=NReal;
}
A[XX][YY]=int(Math.floor(FiveOverPi*Math.atan2(BunsiReal,BunsiIm)));
}
chgFlgE=false;
}
if( cbV.isChecked() ) {
var v:int;
for( YY=0; YY <= h; YY++ ) {
var EBYY:Number=0.002*sbEE.value()*YY;
if( !Q.isNear(XX, YY) ) {
var Vbunsi:Number=1.0;
var Vbunbo:Number=1.0;
for(i=0; i<l ; i++ ) {
if( Q.Q(i)>0 ) {
Vbunsi *= SQX[i][XX]+SQY[i][YY];
}else {
Vbunbo *= SQX[i][XX]+SQY[i][YY];
}
}
v=int(Math.floor(-Math.log(Vbunsi/Vbunbo)+EBYY));
if( v>Vmax) {Vmax=v;}
if( v<Vmin) {Vmin=v;}
V[XX][YY]=v;
} else {
V[XX][YY]=EBYY;
}
}
chgFlgV=false;
}
if( XX>0 ) {
if( cbE.isChecked() ) {
graphics.lineStyle(1,0xff0000);
for( YY=0; YY < h; YY++ ) {
if( !Q.isNear(XX-1, YY) ) {
if( A[XX-1][YY] != A[XX-1][YY+1] || A[XX-1][YY] != A[XX][YY] ) {
graphics.beginFill(0xff0000);
graphics.drawRect(XX-1,YY,1,1);
graphics.endFill();
}
}
}
}
if( cbV.isChecked() ) {
c=0xaa00;
for( YY=0; YY < h; YY++ ) {
// c=int(( 255.0*( Number(( V[XX][j] - Vmin )) ) / ( Number(( Vmax - Vmin )) ) ));
graphics.lineStyle(1,c);
if( !Q.isNear(XX-1,YY) ) {
if( V[XX-1][YY] != V[XX-1][YY + 1] || V[XX-1][YY] != V[XX][YY] ) {
graphics.beginFill(c);
graphics.drawRect(XX-1,YY,1,1);
graphics.endFill();
}
}
}
}
}
XX++;
if( XX > w ) {
if( cbV.isChecked() ) {
var XXX:int;
var Ratio:Number=255.0/(Number(Vmax-Vmin));
for(XXX=0; XXX< w; XXX++ ) {
for( YY=0; YY < h; YY++ ) {
c=int(Ratio* Number(( V[XXX][YY] - Vmin )) );
c=0x10001*c+(255-c)*0x100;
graphics.lineStyle(1,c);
if( !Q.isNear(XX,YY) ) {
if( V[XXX][YY] != V[XXX][YY + 1] || V[XXX][YY] != V[XXX+1][YY] ) {
graphics.beginFill(c);
graphics.drawRect(XXX,YY,1,1);
graphics.endFill();
}
}
}
}
}
XX=-1;
}
}
private var V:Vector.<Vector.<int>>;
private var A:Vector.<Vector.<int>>;
private var Vmax:int;
private var Vmin:int;
public function changeEvt(e:Event):void {
chgFlgV=true;
chgFlgE=true;
XX=0;
}
}
}
import flash.events.Event;
import flash.events.MouseEvent;
import flash.utils.IDataInput;
import flash.accessibility.Accessibility;
import flash.display.Sprite;
import flash.display.*;
import flash.system.*;
import flash.geom.*;
import flash.text.*
class Clickable extends Sprite {
protected var Width:int;
public function Clickable(X:int,Y:int,W:int):void {
x=X;
y=Y;
Width=W;
buttonMode=true;
writeNormal();
addEventListener(MouseEvent.MOUSE_UP,MUp);
addEventListener(MouseEvent.MOUSE_OVER,MOver);
addEventListener(MouseEvent.MOUSE_OUT,MOut);
}
public function MUp(e:Event):void {
;
}
public function MOut(e:Event):void {
writeNormal();
}
protected function writeNormal():void {
graphics.clear();
graphics.lineStyle(1,0xaaaaaa);
graphics.beginFill(0xdddddd);
graphics.drawRect(0,0,Width-1,17);
graphics.endFill();
graphics.lineStyle(1,0x666666);
graphics.moveTo(1,17);
graphics.lineTo(Width-1,17);
graphics.lineTo(Width-1,1);
}
public function MOver(e:Event):void {
writeHilight();
}
protected function writeHilight():void {
graphics.clear();
graphics.lineStyle(1,0xffffff);
graphics.beginFill(0xdddddd);
graphics.drawRect(0,0,Width-1,17);
graphics.endFill();
graphics.lineStyle(1,0xaaaaaa);
graphics.moveTo(1,17);
graphics.lineTo(Width-1,17);
graphics.lineTo(Width-1,1);
}
}
class Charge extends Sprite {
private var q:int;
private var hankei:int;
private var color:int;
private var nowDrag:Boolean;
public function Q():int { return q;}
public function X():int {return x+hankei;}
// 中心のx座標を返す。xは左隅なので、半径分足す。
public function Y():int {return y+hankei;}
// 中心のy座標を返す。yは上隅なので、半径分足す。
public function Charge(qq:int,XXX:int, YYY:int,pp:Sprite):void {
buttonMode=true;
pp.addChild(this);
x=XXX;
y=YYY;
q=qq;
hankei=10;
if( qq>0 ) {
color=0xbb0000;
} else {
color=0xbb;
}
nowDrag=false;
write();
}
public function goDrag():void {
nowDrag=true;
startDrag(false,new Rectangle(0,0,400-hankei*2,346-hankei*2));
}
public function endDrag():void {
nowDrag=false;
stopDrag();
dispatchEvent(new Event("update"));
}
public function update():void {
write();
}
public function write():void {
graphics.clear();
graphics.lineStyle(1,color);
graphics.beginFill(color);
graphics.drawCircle(hankei,hankei,hankei);
graphics.endFill();
if( q != 0 ) {
graphics.lineStyle(1,0xffffff);
graphics.moveTo(3,hankei);
graphics.lineTo(2*hankei-2 ,hankei);
// ↑マイナス符号
if( q> 0 ) {
graphics.moveTo(hankei,2);
graphics.lineTo(hankei,2*hankei-2);
// ↑プラス符号に
}
}
}
}
class PushButton extends Clickable{
private var txt:TextField;
private var label:String;
public function PushButton(L:int,Y:int,WW:int,l:String,c:int=0):void {
super(L,Y,WW);
label=l;
txt=new TextField();
txt.text=label;
txt.height=18;
txt.width=Width;
txt.x=2;
txt.textColor=c;
txt.y=0;
addChild(txt);
}
public override function MUp(e:Event):void {
dispatchEvent(new Event("allerase",true));
}
}
class Check extends Clickable {
private var val:Boolean;
private var txt:TextField;
private var label:String;
private var box:Sprite;
public function Check(now:Boolean,X:int,Y:int,W:int,l:String,c:int=0):void {
super(X,Y,W);
val=now;
label=l;
txt=new TextField();
txt.text=label;
txt.height=18;
txt.x=16;
txt.textColor=c;
txt.y=0;
addChild(txt);
box=new Sprite();
box.buttonMode=true;
addChild(box);
write();
}
public override function MUp(e:Event):void {
toggle();
dispatchEvent(new Event("update",true));
}
public function setValue(a:Boolean):void {
val=a;
write();
}
public function isChecked():Boolean {
return val;
}
public function toggle():void {
setValue(!val);
}
public function update():void {
write();
}
public function write():void {
box.graphics.clear();
box.graphics.lineStyle(1,0);
box.graphics.beginFill(0xffffff);
box.graphics.drawRect(1,1,14,14);
box.graphics.endFill();
if( val ) {
box.graphics.lineStyle(2,0);
box.graphics.moveTo(2,11);
box.graphics.lineTo(4,11);
box.graphics.lineTo(6,13);
box.graphics.lineTo(14,3);
}
}
}
class ThreeToggle extends Clickable {
private var val:int;
private var txt:TextField;
private var box:Sprite;
private var s1:String;
private var s2:String;
private var s3:String;
public function ThreeToggle(ss1:String,ss2:String,ss3:String,L:int,Y:int,WW:int,c:int=0):void {
super(L,Y,WW);
s1=ss1; s2=ss2; s3=ss3;
val=0;
box=new Sprite();
txt=new TextField();
txt.text=s1;
txt.height=18;
txt.x=16;
txt.width=Width-30;
txt.textColor=c;
txt.y=0;
addChild(txt);
addChild(box);
write();
}
public override function MUp(e:Event):void {
toggle();
update();
}
public function setValue(a:int):void {
val=a;
if( val==0 ) {
txt.text=s1;
} else if( val==1 ) {
txt.text=s2;
} else if( val==2 ) {
txt.text=s3;
} else {
txt.text="Something wrong!";
}
}
public function value():int {
return val;
}
public function toggle():void {
val ++;
if( val >2 ) {val=0;}
setValue(val);
}
public function update():void {
write();
}
public function write():void {
box.graphics.clear();
box.graphics.lineStyle(1,0);
box.graphics.beginFill(0xffffff);
box.graphics.drawRect(1,1,14,14);
box.graphics.endFill();
box.graphics.lineStyle(1,0x8800000);
box.graphics.beginFill(0xee0000);
box.graphics.moveTo(2,3);
box.graphics.lineTo(8,14);
box.graphics.lineTo(14,3);
box.graphics.endFill();
}
}
class Charges {
private var chargeList:Array;
private var hankei:int=10;
private var w:int;
private var h:int;
function Charges(WW:int,HH:int){
w=WW;
h=HH;
chargeList=new Array();
Clear();
}
public function C(i:int):Charge {
return chargeList[i];
}
public function hitTest(i:int,mx:int,my:int):Boolean {
return chargeList[i].hitTestPoint(mx,my,false);
}
public function Clear():void {
if( chargeList.length > 0 ) {
chargeList.splice(0,chargeList.length);
}
}
public function addNew( xx:int,yy:int,qq:int,pp:Sprite ):int {
return chargeList.push(new Charge(qq, xx,yy,pp ));
}
public function size():int {return chargeList.length; }
public function X( i:int ):int {
return chargeList[i].X();
}
public function Y( i:int ):int {
return chargeList[i].Y();
}
public function Q( i:int ):int {
return chargeList[i].Q();
}
public function drawMark( gc:Graphics,i:int ):void {
var x1:int=chargeList[i].X();
var y1:int=chargeList[i].Y();
var q1:int=chargeList[i].Q();
if( q1 < 0 ) {
gc.beginFill(0x0a0a0a );
}
else {
gc.beginFill(0xaa00000);
}
gc.drawCircle(x1,y1,hankei);
gc.lineStyle(1,0xffffff);
gc.moveTo(x1 - hankei + 3,y1);
gc.lineTo(x1 + hankei - 2,y1);
if( q1 > 0 ) {
gc.moveTo(x1,y1 - hankei + 2);
gc.lineTo(x1,y1 + hankei - 2);
}
}
public function drawMarks( gc:Graphics ):void {
var i:int;
for( i=0; i < chargeList.length; i++ ) {
drawMark(gc,i);
}
}
public function startDrag(i:int) :void {
chargeList[i].startDrag();
}
public function endDrag(i:int) :void {
chargeList[i].endDrag();
}
public function isNear( x1:int,y1:int ):Boolean {
var i:int;
for( i=0; i < chargeList.length; i++ ) {
var xx:int=chargeList[i].X();
var yy:int=chargeList[i].Y();
if( ( xx - x1 )*( xx - x1 ) + ( yy - y1 )*( yy - y1 ) <= hankei*hankei ) {
return true;
}
}
return false;
}
public function deleteOne( i:int ):void {
chargeList.splice(i,1);
}
public function deleteAll():void {
chargeList.splice(0);
}
}
class Plate extends Sprite {
protected var txt:TextField;
protected var Width:int;
public function Plate(pp:Sprite,X:int,Y:int,W:int,s:String):void {
x=X;
y=Y;
txt=new TextField();
txt.text=s;
txt.height=18;
txt.width=W-20;
txt.y=0;
addChild(txt);
Width=W;
buttonMode=true;
writeNormal();
pp.addChild(this);
}
protected function writeNormal():void {
graphics.clear();
graphics.lineStyle(1,0xaaaaaa);
graphics.beginFill(0xdddddd);
graphics.drawRect(0,0,Width-1,17);
graphics.endFill();
graphics.lineStyle(1,0x666666);
graphics.moveTo(1,17);
graphics.lineTo(Width-1,17);
graphics.lineTo(Width-1,1);
}
}
class Tsumami extends Plate {
private var val:int;
private var min:int;
private var max:int;
private var label:String;
private var nowDrag:Boolean;
private var lever:Sprite;
private var mizo:Sprite;
public function Tsumami(pp:Sprite,now:int,minimum:int,maximum:int,X:int,Y:int,WW:int,l:String,c:int=0):void {
super(pp,X,Y,WW,l);
buttonMode=false;
nowDrag=false;
min=minimum;
max=maximum;
val=now;
label=l;
lever=new Sprite();
mizo=new Sprite();
addChild(mizo);
addChild(lever);
mizo.x=Width/2;
mizo.y=6;
mizo.buttonMode=true;
lever.buttonMode=true;
mizo.addEventListener(MouseEvent.MOUSE_UP,mizoMUp);
mizo.addEventListener(MouseEvent.MOUSE_OVER,mizoMOver);
mizo.addEventListener(MouseEvent.MOUSE_OUT,mizoMOut);
stage.addEventListener(MouseEvent.MOUSE_UP,leverMUp);
lever.addEventListener(MouseEvent.MOUSE_DOWN,leverMDown);
lever.addEventListener(MouseEvent.MOUSE_OVER,leverMOver);
lever.addEventListener(MouseEvent.MOUSE_OUT,leverMOut);
leverNormal();
mizoNormal();
update();
}
public function leverMUp(e:MouseEvent):void {
if(nowDrag ) {
endDrag();
}
}
public function leverMOver(e:MouseEvent):void {
leverHighlight();
}
public function leverMDown(e:MouseEvent):void {
goDrag();
}
public function mizoMUp(e:MouseEvent):void {
var p:Point=localToGlobal(new Point(lever.x,lever.y) );
if( e.stageX < p.x+6 ) {
oneDown();
} else {
oneUp();
}
mizoHighlight(e);
}
public function mizoMOver(e:MouseEvent):void {
mizoHighlight(e);
}
public function mizoMOut(e:MouseEvent):void {
mizoNormal();
}
public function mizoNormal():void {
mizo.graphics.clear();
mizo.graphics.lineStyle(1,0x555555);
mizo.graphics.beginFill(0x555555);
mizo.graphics.drawRect(0,0,Width/2-4,5);
mizo.graphics.endFill();
mizo.graphics.lineStyle(1,0);
mizo.graphics.moveTo(0,5);
mizo.graphics.lineTo(0,0);
mizo.graphics.lineTo(Width/2-4,0);
}
public function mizoHighlight(e:MouseEvent):void {
if( nowDrag ) {
return;
}
var p:Point=localToGlobal(new Point(lever.x,lever.y) );
mizo.graphics.clear();
mizo.graphics.lineStyle(1,0x555555);
mizo.graphics.beginFill(0x555555);
mizo.graphics.drawRect(0,0,Width/2-4,5);
mizo.graphics.endFill();
mizo.graphics.lineStyle(1,0xffffff);
if( e.stageX > p.x+6 ) {
mizo.graphics.moveTo(lever.x-mizo.x,0);
mizo.graphics.lineTo(Width/2-4,0);
mizo.graphics.beginFill(0xaaaa);
mizo.graphics.moveTo(lever.x-mizo.x+8,0);
mizo.graphics.lineTo(lever.x-mizo.x+18,3);
mizo.graphics.lineTo(lever.x-mizo.x+8,6);
mizo.graphics.endFill();
} else {
mizo.graphics.moveTo(lever.x-mizo.x,0);
mizo.graphics.lineTo(0,0);
mizo.graphics.lineTo(0,6);
mizo.graphics.beginFill(0xaaaa);
mizo.graphics.moveTo(lever.x-mizo.x-2,0);
mizo.graphics.lineTo(lever.x-mizo.x-12,3);
mizo.graphics.lineTo(lever.x-mizo.x-2,6);
mizo.graphics.endFill();
}
}
public function leverMOut(e:MouseEvent):void {
if( !nowDrag ) {
leverNormal();
}
}
public function oneUp():void {
setValue(val+1);
}
public function oneDown():void {
setValue(val-1);
}
private function XIchi():int{
return int(Number((Width/2-6)*(val-min))/Number(max-min))+Width/2;
}
public function goDrag():void {
nowDrag=true;
leverInDrag();
lever.startDrag(false,new Rectangle(Width/2,0,Width/2-6,0));
}
public function endDrag():void {
nowDrag=false;
leverNormal();
lever.stopDrag();
setValue(min + int(Number((lever.x-Width/2)*(max-min))/Number(Width/2-6)+0.5));
}
public function setValue(a:int):void {
if( a>max ) {
a=max;
}
if( a<min ) {
a=min;
}
val=a;
update();
dispatchEvent(new Event("change",true));
dispatchEvent(new Event("update",true));
}
public function value():int {
return val;
}
public function update():void {
lever.x=XIchi();
txt.text=label+String(val);
}
public function leverNormal():void {
lever.graphics.clear();
lever.graphics.lineStyle(1,0x333300);
lever.graphics.beginFill(0xaa0000);
lever.graphics.drawRect(0,0,6,18);
lever.graphics.endFill();
}
public function leverHighlight():void {
lever.graphics.clear();
lever.graphics.lineStyle(1,0xaaaa33);
lever.graphics.beginFill(0xaa0000);
lever.graphics.drawRect(0,0,6,18);
lever.graphics.endFill();
}
public function leverInDrag():void {
lever.graphics.clear();
lever.graphics.lineStyle(1,0x888800);
lever.graphics.beginFill(0xee8888);
lever.graphics.drawRect(0,0,6,18);
lever.graphics.endFill();
}
}