| points | A list of Vector2 used to receive the points. |
int
返回放置在 points 列表中的点数。
Gets all the points that define a set of continuous edges.
Ensure the provided list capacity is large enough to contain all retrieved points you need. Unity automatically increases the list capacity if it is not large enough to contain all retrieved points. As the list is usually reused, it is recommended to make the list large enough to return a reasonable quantity of points for its expected use. If the list capacity does not need to be increased, then this function will not allocate any memory and no additional work is produced for the garbage collector.