am - 経済統計練習帳

var bx,by,ball;
 
function sample(){
 
var timer;
var delay = 1000;
 
bx=5;
by=1;
ball=1; 
 
var loop = function(){
 
move();
 
bomb();    
 
if(ball==3)bx=5;
if(ball==3)by=1;    
if(ball==3)ball=1; 
 
if(by>9)bx=5;
if(by>9)ball=1;    
if(by>9)by=1;     
 
paint();
 
clearTimeout(timer);
timer = setTimeout(loop,delay);
}
 
loop();
 
}
 
function paint(){
 
var sub=new svgpaint();
 
str="<svg width=\"500\" height=\"500\">";     
str=str+sub.rect(50*bx,50*by,50,50,"blue"); 
if(ball>1)str=str+sub.rect(50*bx,50*by,50,50,"red");
    str=str+"</svg>";
 
$("#memo").html(str);   
 
}
 
 
 
function move(){
 
dx=0;
if(Math.random()>0.9)dx=1;
if(Math.random()>0.9)dx=-1;
bx=bx+dx;
by=by+1;
 
}
 
 
function bomb(){
 
if(ball==2)ball=3;
 
h=0;
if(Math.random()>0.9)h=h+1;
if(ball==1)h=h+1;
if(h==2)ball=2;
 
 
 
 
}