Replace Minesweeper with Flower Field (#742)

Author: IsaacG

config.json

@@ -800,6 +800,14 @@
           "randomness"
         ]
       },
+      {
+        "slug": "flower-field",
+        "name": "Flower Field",
+        "uuid": "0af8fefb-2d20-483d-9f4a-9a274ad46bb7",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 5
+      },
       {
         "slug": "food-chain",
         "name": "Food Chain",
@@ -831,7 +839,8 @@
         "uuid": "eae564ba-b4d9-4463-ae3f-f7f05f4e52ea",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 5
+        "difficulty": 5,
+        "status": "deprecated"
       },
       {
         "slug": "rational-numbers",

exercises/practice/flower-field/.docs/hints.md

@@ -0,0 +1,19 @@
+# Hints for Bash Flower Field Exercise
+
+This exercise seems to require a two-dimensional array.
+Bash only offers one-dimensional indexed or associative [arrays][array].
+
+Multi-dimensional arrays can be simulated by using an associative arrays: encode the indices into a comma-separated string to use as the array key.
+
+```bash
+# store this matrix:
+#   a b
+#   c d
+declare -A array2d
+array2d["0,0"]="a"
+array2d["0,1"]="b"
+array2d["1,0"]="c"
+array2d["1,1"]="d"
+```
+
+[array]: https://www.gnu.org/software/bash/manual/bash.html#Arrays

exercises/practice/flower-field/.docs/instructions.md

@@ -0,0 +1,26 @@
+# Instructions
+
+Your task is to add flower counts to empty squares in a completed Flower Field garden.
+The garden itself is a rectangle board composed of squares that are either empty (`' '`) or a flower (`'*'`).
+
+For each empty square, count the number of flowers adjacent to it (horizontally, vertically, diagonally).
+If the empty square has no adjacent flowers, leave it empty.
+Otherwise replace it with the count of adjacent flowers.
+
+For example, you may receive a 5 x 4 board like this (empty spaces are represented here with the '·' character for display on screen):
+
+```text
+·*·*·
+··*··
+··*··
+·····
+```
+
+Which your code should transform into this:
+
+```text
+1*3*1
+13*31
+·2*2·
+·111·
+```

exercises/practice/flower-field/.docs/introduction.md

@@ -0,0 +1,7 @@
+# Introduction
+
+[Flower Field][history] is a compassionate reimagining of the popular game Minesweeper.
+The object of the game is to find all the flowers in the garden using numeric hints that indicate how many flowers are directly adjacent (horizontally, vertically, diagonally) to a square.
+"Flower Field" shipped in regional versions of Microsoft Windows in Italy, Germany, South Korea, Japan and Taiwan.
+
+[history]: https://web.archive.org/web/20020409051321fw_/http://rcm.usr.dsi.unimi.it/rcmweb/fnm/

exercises/practice/flower-field/.meta/config.json

@@ -0,0 +1,17 @@
+{
+  "authors": [
+    "IsaacG"
+  ],
+  "files": {
+    "solution": [
+      "flower_field.sh"
+    ],
+    "test": [
+      "flower_field.bats"
+    ],
+    "example": [
+      ".meta/example.sh"
+    ]
+  },
+  "blurb": "Mark all the flowers in a garden."
+}

exercises/practice/flower-field/.meta/example.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+# some global vars
+declare -A board
+height=$#
+width=${#1}
+
+parse_input() {
+    local rownum=0 row col index char
+    for row in "$@"; do
+        for ((col = 0; col < "${#row}"; col++)); do
+            index="${rownum},${col}"
+            char=${row:col:1}
+            board[$index]=$char
+        done
+        (( rownum++ ))
+    done
+}
+
+count() {
+    local r=$1 c=$2
+    local count=0
+    for dr in -1 0 1; do
+        (( r + dr < 0 || r + dr == height )) && continue
+        for dc in -1 0 1; do
+            (( c + dc < 0 || c + dc == width )) && continue
+            (( dr == 0 && dc == 0 )) && continue
+            index="$((r + dr)),$((c + dc))"
+            [[ ${board[$index]} == "*" ]] && (( count++ ))
+        done
+    done
+    (( count == 0 )) && echo " " || echo "$count"
+}
+
+create_output() {
+    local row output col
+    for ((row = 0; row < height; row++)); do
+        output=""
+        for ((col = 0; col < width; col++)); do
+            if [[ ${board[$row,$col]} == "*" ]]; then
+                output+="*"
+            else
+                output+=$( count "$row" "$col" )
+            fi
+        done
+        echo "$output"
+    done
+}
+
+parse_input "$@"
+create_output

exercises/practice/flower-field/.meta/tests.toml

@@ -0,0 +1,47 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[237ff487-467a-47e1-9b01-8a891844f86c]
+description = "no rows"
+include = false
+
+[4b4134ec-e20f-439c-a295-664c38950ba1]
+description = "no columns"
+
+[d774d054-bbad-4867-88ae-069cbd1c4f92]
+description = "no flowers"
+
+[225176a0-725e-43cd-aa13-9dced501f16e]
+description = "garden full of flowers"
+
+[3f345495-f1a5-4132-8411-74bd7ca08c49]
+description = "flower surrounded by spaces"
+
+[6cb04070-4199-4ef7-a6fa-92f68c660fca]
+description = "space surrounded by flowers"
+
+[272d2306-9f62-44fe-8ab5-6b0f43a26338]
+description = "horizontal line"
+
+[c6f0a4b2-58d0-4bf6-ad8d-ccf4144f1f8e]
+description = "horizontal line, flowers at edges"
+
+[a54e84b7-3b25-44a8-b8cf-1753c8bb4cf5]
+description = "vertical line"
+
+[b40f42f5-dec5-4abc-b167-3f08195189c1]
+description = "vertical line, flowers at edges"
+
+[58674965-7b42-4818-b930-0215062d543c]
+description = "cross"
+
+[dd9d4ca8-9e68-4f78-a677-a2a70fd7a7b8]
+description = "large garden"