Turtle snow fall: Difference between revisions

From JSXGraph Wiki
No edit summary
No edit summary
Line 31: Line 31:
   active = setTimeout(snow,50);
   active = setTimeout(snow,50);
}
}
t.penColor('#ffff00');
t.setPenColor('#ffff00');
snow();
snow();
          
          

Revision as of 09:18, 23 December 2008


References

The source code

function side(size, level) {
    if (level==0) {
        t.fd(size);
    } else {
        side(size/3, level-1);
        t.lt(60);
        side(size/3, level-1);
        t.rt(120);
        side(size/3, level-1);
        t.lt(60);
        side(size/3, level-1);
    }
}

function snowflake(size, level) {
    (3).times(function() {
        side(size, level);
        t.rt(120);
    });
}
t.ht();
function snow() {
   t.setPos(Math.random()*600-300,Math.random()*600-300);
   snowflake(30*Math.random(),Math.floor(Math.random()*4));
   active = setTimeout(snow,50);
}
snow();