initial upload

2024/04/example.txt

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+MMMSXXMASM
+MSAMXMSMSA
+AMXSXMAAMM
+MSAMASMSMX
+XMASAMXAMM
+XXAMMXXAMA
+SMSMSASXSS
+SAXAMASAAA
+MAMMMXMMMM
+MXMXAXMASX

2024/04/index.js

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+import fs from 'node:fs'
+fs.readFile('example.txt', ({ encoding: "utf-8" }), (err, data) => {
+    const letters = ["X", "M", "A", "S"]
+
+    const rows = [...data.split('\n')]
+
+    // directions, straight first: east,south,west,north,southeast,southwest,northwest,northeast
+    const dirs = [[1, 0], [0, 1], [-1, 0], [0, -1], [1, 1], [-1, 1], [-1, -1], [-1, 1]]
+
+    let found_words = 0
+    let found_letters = []
+    const width = rows[0].length
+    const height = rows.length
+    // letters.forEach(letter => {
+    //     for (i = 0; i < rows.length; i++) {
+
+
+    //     }
+    // })
+    for (let letter = 0; letter < letters.length; letter++) {
+        let letter_positions = []
+        for (let x = 1; x <= width; x++) {
+            for (let y = 1; y <= height; y++) {
+                if (rows[y - 1][x - 1] === letters[letter]) {
+                    letter_positions.push([x, y])
+
+                    // check if there is a next letter
+                    dirs.forEach(direction => {
+                        let [new_x, new_y] = direction
+                        if (x + new_x in [...rows[y - 1]] && y + new_y in [...rows.keys()] && letter + 1 in [...letters.keys()]) {
+                            //console.log(`I'm at ${x},${y} with ${letters[letter]}. Looking for letter at ${x + new_x},${y + new_y}`)
+                            if (letters[letter + 1] === rows[y - 1 + new_y][x - 1 + new_x]) {
+                                console.log(`I am at ${x},${y} with $ ${letters[letter]}. Found ${letters[letter + 1]}.`)
+                            }
+                        }
+                    })
+                }
+            }
+        }
+        found_letters[letter] = letter_positions
+    }
+
+    console.log(found_letters)
+    console.log(`width:  ${width}`)
+    console.log(`height: ${height}`)
+})
+
+function findFirstLetter(letter) {
+    const [row, col] = Array
+    return [row, col]
+}