计算两点间贝塞尔曲线和以两点为中心的圆的交点

(x-a)2 + (y-b)2 = r2

x1 = x0 + r * Math.cos(angle * Math.PI / 180)
y1 = y0 + r * Math.sin(angle * Math.PI/180)

B(t) = (1-t)2P0 + 2t(1-t)P1 + t2P2,   t∈[0,1]

x = Math.pow(1-t, 2) * x1 + 2 * t * (1-t) * cx + Math.pow(t, 2) * x2
y = Math.pow(1-t, 2) * y1 + 2 * t * (1-t) * cy + Math.pow(t, 2) * y2

const distance = (x0, y0, x1, y1) => Math.hypot(x1 - x0, y1 - y0);