def test_heading(self):
"""
The positive Z heading points towards a heading of zero, and the
positive X heading points towards three-halves pi.
"""
first = Position(0, 0, 0)
second = Position(0, 0, 1)
third = Position(1, 0, 0)
self.assertAlmostEqual(first.heading(second), 0)
self.assertAlmostEqual(first.heading(third), 3 * math.pi / 2)
# Just for fun, this should point between pi and 3pi/2, or 5pi/4.
self.assertAlmostEqual(second.heading(third), 5 * math.pi / 4)
def test_heading(self):
"""
The positive Z heading points towards a heading of zero, and the
positive X heading points towards three-halves pi.
"""
first = Position(0, 0, 0)
second = Position(0, 0, 1)
third = Position(1, 0, 0)
self.assertAlmostEqual(first.heading(second), 0)
self.assertAlmostEqual(first.heading(third), 3 * math.pi / 2)
# Just for fun, this should point between pi and 3pi/2, or 5pi/4.
self.assertAlmostEqual(second.heading(third), 5 * math.pi / 4)
def test_heading_negative(self):
"""
Headings shouldn't be negative.
Well, they can be, technically, but in Bravo, they should be clamped
to the unit circle.
"""
first = Position(0, 0, 0)
second = Position(-1, 0, 0)
self.assertTrue(first.heading(second) >= 0)
def test_heading_negative(self):
"""
Headings shouldn't be negative.
Well, they can be, technically, but in Bravo, they should be clamped
to the unit circle.
"""
first = Position(0, 0, 0)
second = Position(-1, 0, 0)
self.assertTrue(first.heading(second) >= 0)