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Update vector.py

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Felix Bargfeldt 2019-04-08 17:35:58 +02:00
parent 9ddbbb84cb
commit bd6f49d873
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GPG key ID: 99184F5FDC589A67
1 changed files with 9 additions and 25 deletions
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34
vector.py
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@ -38,14 +38,11 @@ class Point:
return Point(self.x / other, self.y / other)
def to_vector(self):
x, y = self.x, self.y
if y == 0:
return Vector(x, 90)
distance = math.sqrt(x ** 2 + y ** 2)
angle = rad2deg(math.atan(-x / y))
if y > 0:
distance *= -1
return Vector(distance, angle)
if not self.x:
return Vector(-self.y, 0)
a = math.atan(self.y / self.x)
d = self.x / math.cos(a)
return Vector(d, rad2deg(a) + 90)
class Vector:
@ -76,20 +73,7 @@ class Vector:
return Point(self.distance / other, self.angle)
def to_point(self):
angle = self.angle % 360
distance = self.distance
if angle % 90 == 0:
return [
Point(0, -distance),
Point(distance, 0),
Point(0, distance),
Point(-distance, 0)
][(int(self.angle) % 360) // 90]
if angle > 180:
angle -= 180
distance *= -1
w = -1 / math.tan(deg2rad(angle))
x = distance / math.sqrt(w ** 2 + 1)
return Point(x, w * x)
return Point(
math.cos(deg2rad(self.angle - 90)) * self.distance,
math.sin(deg2rad(self.angle - 90)) * self.distance
)