ol.Sprite.move() make misstakes when the direction is due east/ west/south

[PongChen]

https://viglino.github.io/ol-games/examples/map.sprite.path.html

replace the path with
// 向上
var path2 = new ol.geom.LineString([
[265500, 6270000],[265500, 6280000],[265500, 6285000],[265500, 6290000],[265500, 6295000],[265500, 6300000],

]);
// 向下
var path = new ol.geom.LineString([
[265500, 6300000],[265500, 6295000],[265500, 6290000],[265500, 6285000],[265500, 6280000],[265500, 6270000],

]);
as you can see theirs difference

[Viglino]

I fix the issue in the last commit when path has vertical or horizontal segments.

[PongChen]

I fix the issue in the last commit when path has vertical or horizontal segments.

Awesome！
little does one think you solve it so soon ，have a good day thanks

[Viglino]

Most difficult is to find the bugs...