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https://github.com/worldforge/cyphesis
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26 lines
905 B
Python
26 lines
905 B
Python
# This file may be redistributed and modified only under the terms of
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# the GNU General Public License (See COPYING for details).
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# Copyright (C) 2005 Alistair Riddoch
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from physics import Vector3D
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compass_points = [(Vector3D(1, 0, 0), "east"),
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(Vector3D(0, 0, -1), "north"),
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(Vector3D(0, 0, 1), "south"),
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(Vector3D(-1, 0, 0), "west"),
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(Vector3D(0.707, 0, -0.707), "north east"),
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(Vector3D(-0.707, 0, -0.707), "north west"),
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(Vector3D(0.707, 0, 0.707), "south east"),
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(Vector3D(-0.707, 0, 0.707), "south west")]
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def vector_to_compass(direction):
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dot = -1
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ret = "unknown"
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dir = direction.unit_vector()
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for point in compass_points:
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new_dot = dir.dot(point[0])
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if new_dot > dot:
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dot = new_dot
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ret = point[1]
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return ret
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