学flash初期看到的经典3D代码

function init(){

_root.createEmptyMovieClip("pad",1);

pad._x=270;

pad._y=200;

};

ya=Math.PI;

//设定观测点的距离

fl=10000;

x=new Array(-100,100,100,-100,-100,100,100,-100);

y=new Array(-100,-100,100,100,-100,-100,100,100);

z=new Array(-100,-100,-100,-100,100,100,100,100);

xp=new Array();

yp=new Array();

function square(x1,y1,x2,y2,x3,y3,x4,y4,col){

pad.beginFill(col,50);

pad.lineStyle(1,0,100);

pad.moveTo(x1,y1);

pad.lineTo(x2,y2);

pad.lineTo(x3,y3);

pad.lineTo(x4,y4);

pad.lineTo(x1,y1);

pad.endFill();

};

_root.onEnterFrame=function(){

init();

cosxa=Math.cos(xa);

sinxa=Math.sin(xa);

cosya=Math.cos(ya);

sinya=Math.sin(ya);

xa+=pad._ymouse/2000;

ya+=pad._xmouse/2000;

for(i=0;i<8;i++){

ypt=cosxa*y-sinxa*z;

zpt=cosxa*z+sinxa*y;

xpt=cosya*x-sinya*zpt;

zpt=cosya*zpt+sinya*x;

scale=fl/(fl+zpt+200);

xp=xpt*scale;

yp=ypt*scale;

};

square(xp[0],yp[0],xp[1],yp[1],xp[2],yp[2],xp[3],yp[3],0xff0000);

square(xp[0],yp[0],xp[3],yp[3],xp[7],yp[7],xp[4],yp[4],0x00ff00);

square(xp[4],yp[4],xp[5],yp[5],xp[6],yp[6],xp[7],yp[7],0x0000ff);

square(xp[1],yp[1],xp[2],yp[2],xp[6],yp[6],xp[5],yp[5],0xff00ff);

square(xp[0],yp[0],xp[1],yp[1],xp[5],yp[5],xp[4],yp[4],0xffff00);

square(xp[2],yp[2],xp[3],yp[3],xp[7],yp[7],xp[6],yp[6],0x00ffff);

};

_root.onMouseDown=function(){

_root.draw=true;

};

_root.onMouseUp=function(){

_root.draw=false;

};