"""
Normalized vector is vector of length 1. Used where one direction is matter.
E.g: direction of the view, direction of movement, etc.
"""
from structures import Vector, Point
if __name__ == '__main__':
p= Point(3,4)
i = Point(1,2)
pi = p.subtract(i)
normalized_vector = pi.normalized()
print("view vector: ", normalized_vector.x, normalized_vector.y)
print("view vector length: ", normalized_vector.length())
"""
Substraction is used to figure out vector from one point to another
V = P(destination) - P(current)
"""
from structures import Vector, Point
if __name__ == '__main__':
destination = Point(0, -1)
current_position = Point(1, 1)
v = destination.subtract(current_position)
print(v.x, v.y)