def advance_positions(self, lerp_value, eps=1e-2):
line_segment = LineSegment(self.position, self.target_position)
if line_segment.Length() < eps:
self.position = self.target_position
else:
self.position = line_segment.Lerp(lerp_value)
for child in self.child_list:
child.advance_positions(lerp_value)
def Length(self):
from math2d_line_segment import LineSegment
if len(self.point_list) < 2:
return 0.0
length = 0.0
for i in range(len(self.point_list) - 1):
line_segment = LineSegment(self.point_list[i],
self.point_list[i + 1])
length += line_segment.Length()
return length