ぼーえうｍのｐ - 経済統計練習帳

var bx,by,dx,dy;
 
function sample(){
 
paint();    
  var timer;
var delay = 100;
 
 bx=250;
 by=500;
 dx=10;
 dy=10;
 
 
var loop = function () {
 
 
 bx=bx+dx;
 by=by-dy;
 
 if(by<0)by=500;
h=0; 
if(bx<0)h=h+1;
if(dx<0)h=h+1;
if(h==2)dx=-dx;
 
h=0; 
if(bx>500)h=h+1;
if(dx>0)h=h+1;
if(h==2)dx=-dx;
 
    paint();
 
    clearTimeout(timer);
    timer = setTimeout(loop, delay);
}
 
loop();
 
 
 
 
}
 
function paint(){ 
 
    var sub=new svgpaint();
 
str="<svg width=\"500\" height=\"500\">";
str=str+sub.rect(0,0,500,500,"blue"); 
str=str+sub.rect(bx,500-by,5,5,"red"); 
str=str+"</svg>";
 
    $("#memo").html(str);   
 
}