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fig_ex3p12.py
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#!/usr/bin/env python3
# Copyright 2016 Andrew Medworth ([email protected])
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Generate SVG diagram for Exercise 3.12 from Berlekamp's book"""
import svg
def main():
"""Entry point"""
pos = svg.StringsAndCoinsPosition()
grid = pos.create_dotsandboxes_start(5, 5)
# Just make the moves in any order - it doesn't have to be sensible
pos.cut_ground_string(grid[0][0], direction="up")
pos.cut_ground_string(grid[1][0], direction="up")
pos.cut_ground_string(grid[2][0], direction="up")
pos.cut_ground_string(grid[3][0], direction="up")
pos.cut_ground_string(grid[4][0], direction="up")
pos.cut_ground_string(grid[0][1], direction="left")
pos.cut_ground_string(grid[4][2], direction="right")
pos.cut_ground_string(grid[4][3], direction="right")
pos.cut_ground_string(grid[4][4], direction="right")
pos.cut_ground_string(grid[3][4], direction="down")
pos.cut_ground_string(grid[4][4], direction="down")
pos.cut_2coin_string(grid[2][0], grid[3][0])
pos.cut_2coin_string(grid[0][0], grid[0][1])
pos.cut_2coin_string(grid[1][1], grid[2][1])
pos.cut_2coin_string(grid[1][1], grid[1][2])
pos.cut_2coin_string(grid[2][1], grid[3][1])
pos.cut_2coin_string(grid[3][1], grid[3][2])
pos.cut_2coin_string(grid[4][1], grid[4][2])
pos.cut_2coin_string(grid[0][2], grid[0][3])
pos.cut_2coin_string(grid[0][2], grid[1][2])
pos.cut_2coin_string(grid[0][3], grid[1][3])
pos.cut_2coin_string(grid[0][4], grid[1][4])
pos.cut_2coin_string(grid[2][2], grid[2][3])
pos.cut_2coin_string(grid[2][2], grid[3][2])
pos.cut_2coin_string(grid[2][3], grid[2][4])
pos.cut_2coin_string(grid[3][3], grid[3][4])
pos.cut_2coin_string(grid[3][3], grid[4][3])
pos.cut_2coin_string(grid[1][4], grid[2][4])
pos.make_pending_moves()
pos.cut_2coin_string(grid[4][0], grid[4][1])
pos.highlight_pending_moves(colour="black", thickness=3)
pos.render()
if __name__ == '__main__':
main()