paths_tiling_1

# Create a special case of Truchet tiling, using three squares from
# https://en.wikipedia.org/wiki/Black_Path_Game
# => step 1: generate a fixed tiling of 6 rows x 8 columns, and display it
# Copyright 2024 Roland Richter                          [Processing.py]

from __future__ import division, print_function

def setup():
    # 8x6 tiles of size 100x100 pixels, plus all borders with two pixels each
    size(818, 614)

    # Black Path Game tiles (PNG, 100x100 pixels) from
    # https://en.wikipedia.org/wiki/File:Square_(02)_12-34.svg,
    # https://en.wikipedia.org/wiki/File:Square_(20)_13-24.svg, and
    # https://en.wikipedia.org/wiki/File:Square_(02)_14-23.svg
    # by Mliu92, used under CC BY-SA 4.0
    sq12 = loadImage("Square_12-34.png")
    sq13 = loadImage("Square_13-24.png")
    sq14 = loadImage("Square_14-23.png")

    global squares
    squares = [sq12, sq13, sq14]
    print("loaded", len(squares), "squares.")


def draw():
    background(255)

    # The tiling is generated randomly each time draw() is called; to ensure that
    # the same tiling is generated each time, initialize the random generator here.
    randomSeed(42)

    global squares

    # Generate and draw the tiling in six rows, and eight columns
    for r in range(6):
        for c in range(8):
            idx = int(random(len(squares)))
            image(squares[idx], 2 + c * 102, 2 + r * 102)


# ----------------------------------------------------------------------
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.