export module Bezier { export function GetPoint(p0: cc.Vec2, p1: cc.Vec2, p2: cc.Vec2, p3: cc.Vec2, t: number): cc.Vec2 { if (t < 0) { t = 0; } else if (t > 1) { t = 1 } let OneMinusT = 1 - t; return p0.mul(OneMinusT * OneMinusT * OneMinusT) .add(p1.mul(3 * OneMinusT * OneMinusT * t)) .add(p2.mul(3 * OneMinusT * t * t)) .add(p3.mul(t * t * t)); } }