し８８８ - 経済統計練習帳

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
 
<script>
 
var ball=new Array();
var bx=new Array();
var by=new Array();
 
function sample(){
 
 
 
for(s=1;s<501;s++){ 
bx[s]=250;
by[s]=250;
ball[s]=0;
}
 
var timer;
var delay = 100;
 
var loop = function () {
 
 
 
for(s=1;s<501;s++){ 
by[s]=by[s]+5; 
if(Math.random()>0.8)bx[s]=bx[s]+5;
if(Math.random()>0.8)bx[s]=bx[s]-5;
if(by[s]>500)ball[s]=0;
}
 
 
 
paint();
 
 
 
    clearTimeout(timer);
    timer = setTimeout(loop, delay);
}
 
loop();
 
 
}
 
function rect(x1,y1,w1,h1,col){
var strx;
strx="<rect x="+chop(x1)+"\" y="+chop(y1)+"\" width="+chop(w1);
strx=strx+"\" height="+chop(h1)+" fill="+chop(col)+"/>";
return strx;
}
 
 
function chop(strp){
var strx;
strx="\""+strp+"\"";
return strx;
}
 
 
function paint(){
 
str="<svg width=\"500\" height=\"500\">"; 
str=str+rect(0,0,500,500,"blue");
for(s=1;s<501;s++){
if(ball[s]>50)str=str+circle(bx[s],by[s],5,"red");
}
str=str+"</svg>";
 
$("#memo").html(str);   
 
}
 
function text(x1,y1,size,strp){
var strx;
strx="<text x="+this.chop(x1)+" y= "+this.chop(y1)
+" font-size="+this.chop(size)+">";
strx=strx+strp;
strx=strx+"</text>";
return strx;
}
 
function circle(x1,y1,r,col){
var strx;
strx="<circle cx="+chop(x1)+"\" cy="+chop(y1)+"\" r="+chop(r)+" fill="+chop(col)+"/>";
return strx;
}
 
</script>