mirror of https://github.com/VLSIDA/OpenRAM.git
75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
# See LICENSE for licensing information.
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#
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# Copyright (c) 2016-2019 Regents of the University of California and The Board
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# of Regents for the Oklahoma Agricultural and Mechanical College
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# (acting for and on behalf of Oklahoma State University)
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# All rights reserved.
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#
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from enum import Enum
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from vector3d import vector3d
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class direction(Enum):
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NORTH = 1
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SOUTH = 2
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EAST = 3
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WEST = 4
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UP = 5
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DOWN = 6
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NORTHEAST = 7
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NORTHWEST = 8
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SOUTHEAST = 9
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SOUTHWEST = 10
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def get_offset(direct):
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"""
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Returns the vector offset for a given direction.
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"""
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if direct==direction.NORTH:
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offset = vector3d(0,1,0)
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elif direct==direction.SOUTH:
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offset = vector3d(0,-1,0)
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elif direct==direction.EAST:
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offset = vector3d(1,0,0)
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elif direct==direction.WEST:
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offset = vector3d(-1,0,0)
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elif direct==direction.UP:
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offset = vector3d(0,0,1)
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elif direct==direction.DOWN:
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offset = vector3d(0,0,-1)
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elif direct==direction.NORTHEAST:
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offset = vector3d(1,1,0)
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elif direct==direction.NORTHWEST:
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offset = vector3d(-1,1,0)
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elif direct==direction.SOUTHEAST:
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offset = vector3d(1,-1,0)
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elif direct==direction.SOUTHWEST:
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offset = vector3d(-1,-1,0)
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else:
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debug.error("Invalid direction {}".format(direct))
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return offset
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def cardinal_directions(up_down_too=False):
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temp_dirs = [direction.NORTH, direction.EAST, direction.SOUTH, direction.WEST]
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if up_down_too:
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temp_dirs.extend([direction.UP, direction.DOWN])
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return temp_dirs
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def cardinal_offsets(up_down_too=False):
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return [direction.get_offset(d) for d in direction.cardinal_directions(up_down_too)]
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def all_directions():
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return [direction.NORTH, direction.EAST, direction.SOUTH, direction.WEST,
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direction.NORTHEAST, direction.NORTHWEST, direction.SOUTHEAST, direction.SOUTHWEST]
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def all_offsets():
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return [direction.get_offset(d) for d in direction.all_directions()]
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def all_neighbors(cell):
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return [cell+x for x in direction.all_offsets()]
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def cardinal_neighbors(cell):
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return [cell+x for x in direction.cardinal_offsets()]
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