func getValidCoords(w *word.Word, row, col int) [][]int {
validCoords := make([][]int, 0)
for loopRow := row - 1; loopRow < row+2; loopRow++ {
for loopCol := col - 1; loopCol < col+2; loopCol++ {
if loopRow >= 0 && loopRow < b.Size() && loopCol >= 0 && loopCol < b.Size() {
if !w.ContainsCoords(loopRow, loopCol) {
validCoords = append(validCoords, []int{loopRow, loopCol})
}
}
}
}
return validCoords
}
func findWords(w *word.Word, row, col int) {
if isValidWord(w.Word()) {
foundWords[w.Word()] = true
}
validCoordsForWord := getValidCoords(w, row, col)
for _, coords := range validCoordsForWord {
if d.ContainsPrefix(w.Word() + b.Letter(coords[0], coords[1])) {
newWord := word.NewFromWord(w)
newWord.AddLetter(b.Letter(coords[0], coords[1]), coords[0], coords[1])
findWords(newWord, coords[0], coords[1])
}
}
}