def _are_points_in_same_y_side(p1, p2):
	"""
	Return True if the 2 given points are on same side (y axis).
	
	usage examples :
		>>> p1 = Vector3(0, -5, 0)
		>>> p2 = Vector3(0, 10, 0)
		>>> _are_points_in_same_y_side(p1, p2)
		True
		>>> p3 = Vector3(20, -5, 0)
		>>> _are_points_in_same_y_side(p1, p3)
		False
	
	:param pygame.Vector3 p1: 1st point
	:param pygame.Vector3 p2: 2nd point
	:return: True if points are in same side
	"""
	return p1.y * p2.y < 0