def get_collision_between_lines(line1, line2, precision=PRECISION): # get_line_vector_collision_point
""" returns collision between 2 lines defined by a point and the direction vector """
point_1, director_1 = line1
point_2, director_2 = line2
# ==
if not is_same(det(director_1, director_2), 0, precision=precision):
return tuple_sum(
point_1,
tuple_float_mult(
director_1, det(points_diff(point_1, point_2), director_2) / float(det(director_1, director_2))
),
)
if is_same(det(points_diff(point_1, point_2), director_1), 0, precision=precision):
return point_1 # ou point_2, c'est la meme chose : les droites sont confondues
return None
def get_line_vector_collision_point(line1, line2):
""" returns collision between 2 lines defined by a point and the direction vector """
(p1, v1) = line1
(p2, v2) = line2
return get_line_collision_point((p1, tuple_sum(p1, v1)), (p2, tuple_sum(p2, v2)))
