Drawing a labyrinth using doodle library. / published by https://github.com/dacr/code-examples-manager #32793934-a545-4d97-ad1a-93bb0d071799/4ff05d00aff95de95cb9383ede48e653dcb52d2

vectorgraphics-doodle-labyrinth.sc

// summary : Drawing a labyrinth using doodle library.
// keywords : scala, vector-graphics, doodle
// publish : gist
// authors : David Crosson
// license : Apache License Version 2.0 (https://www.apache.org/licenses/LICENSE-2.0.txt)
// id : 32793934-a545-4d97-ad1a-93bb0d071799
// created-on : 2019-06-25T20:15:55Z
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file

// ---------------------
//> using scala "3.4.2"
//> using dep "org.creativescala::doodle:0.23.0"
// ---------------------

import doodle.core.*
import doodle.syntax.*
import doodle.syntax.all.*
import doodle.image.*
import doodle.image.syntax.*
import doodle.image.syntax.core.*
import doodle.image.syntax.all.*
import doodle.java2d.*
import doodle.java2d.effect.*
import cats.effect.unsafe.implicits.global

// generated with https://www.dcode.fr/maze-generator
val labyrinth =
  """###############################
    |#S#     #     # #       # #   #
    |# # ### ##### # ### # ### ### #
    |#   #         #   # # #       #
    |# ### ### ### # # ### ### #####
    |#   # # # #     # # #       # #
    |# ##### # # ### # # # ### ### #
    |#   # #   # # # # #   #       #
    |##### # ### # # ### ######### #
    |# #       #   #   #     #   # #
    |# # # ### ####### # ### ### # #
    |#   #   #     #   # #     #   #
    |# # ### ####### ##### ####### #
    |# #   #     #               # #
    |### ### # ##### ##### # ### ###
    |#   # # #   #   # #   # #     #
    |# ### # ######### # ##### ### #
    |# # #     # #     #   #   # # #
    |# # # # ### ##### # ##### # # #
    |#   # #       #       #     #E#
    |###############################""".stripMargin.trim

val sz    = 20
val wall  = Image.rectangle(sz, sz).fillColor(Color.black)
val floor = Image.rectangle(sz, sz).fillColor(Color.beige).strokeColor(Color.beige.darkenBy(5.normalized))
val start = Image.circle(sz).fillColor(Color.green)
val goal  = Image.triangle(sz, sz).fillColor(Color.red)

def charToImage(ch: Char) = ch match {
  case '#' => wall
  case ' ' => floor
  case 'S' => start
  case 'E' => goal
}

val img =
  labyrinth
    .split("\n")
    .zipWithIndex
    .map { case (row, rowIndex) =>
      if (rowIndex % 2 == 0) row.map(charToImage).reduce((c1, c2) => c1.beside(c2))
      else row.reverse.map(charToImage).reduce((c1, c2) => c2.beside(c1))
    }
    .reduce((r1, r2) => r2.below(r1))

img.draw()