电子水母生成公式
k = 5 cos(x/14) cos(y/30)
e = y/8 - 13
d = (k² + e²)/59 + 4
a = arctan(k, e)
q = 60 - sin(a·e) + k·(3 + (4/d)·sin(d² - 2t))
c = d/2 + e/99 - t/18
X = q · sin(c) + 200
Y = (q + 9d) · cos(c) + 200
// t = 时间变量,实现动画效果