for loop spacing

wordle

@@ -24,8 +24,10 @@ function reveal_row() {
   echo -en "${SAVE}"
   echo -en "${HIDE_CURSOR}"
   # Must increment by 1 Row as 0 == 1 for escape code
-  declare RNUM=$(( $1+1 ))
+  declare RNUM=$(( $1+1+BORDER ))
-  echo -en "\e[$RNUM;0H"
+  declare OFFSET=$(( BORDER * 3 ))
+
+  echo -en "\e[${RNUM};${OFFSET}H"
   for (( C=0; C<WIDTH; C++ )); do
     echo -n "${BOARD[$1,$C]}"
     read -r -s -t 0.5
@@ -41,7 +43,7 @@ function check_guess() {
   declare green_count=0
   declare chars=""
 
-  for ((i=0; i<WIDTH; i++)); do
+  for (( i=0; i<WIDTH; i++ )); do
     [[ "${_answer:i:1}" != "${_guess:i:1}" ]] && chars+=${_answer:i:1}
   done
 
@@ -51,7 +53,7 @@ function check_guess() {
     declare _char=${_guess:$c:1}
 
     if [[ "${_char}" == "${_answer:$c:1}" ]]; then
-      green_count=$((green_count+1))
+      green_count=$(( green_count+1 ))
       BOARD[$_row,$c]="${BOLD}${LETTER}${GREEN} ${_char} "
       [[ $green_count == 5 ]] && return 5
       continue
@@ -100,7 +102,7 @@ function retrive_guess() {
 
 function select_random_word() {
   IFS=' ' read -r -a answers <<< "${POSSIBLE_ANSWERS}"
-  declare -r random_index=$((RANDOM % ${#answers[@]}))
+  declare -r random_index=$(( RANDOM % ${#answers[@]} ))
   echo "${answers[random_index]^^}"
 }
 
@@ -110,12 +112,16 @@ function render_board() {
   declare row
   declare char
 
+  [[ "${BORDER}" == 1 ]] && echo -e "┌─────────────────┐"
   for (( row=0; row<HEIGHT; row++ )); do
+    [[ "${BORDER}" == 1 ]] && echo -en "│ "
     for (( char=0; char<WIDTH; char++ )); do
       echo -n "${BOARD[${row},${char}]}${RESET}"
     done
+    [[ "${BORDER}" == 1 ]] && echo -en " │ "
     echo -en "${DOWN1}"
   done
+  [[ "${BORDER}" == 1 ]] && echo -e "└─────────────────┘"
 }
 
 function init_board() {
@@ -127,11 +133,37 @@ function init_board() {
   done
 }
 
+function set_options() {
+  declare -g BORDER=1
+
+  while getopts "bw:h" OPT; do
+    case "${OPT}" in
+      b)
+        BORDER=0
+        ;;
+      w)
+        ANSWER="${OPTARG^^}"
+        validate_guess "${ANSWER}"
+        if [[ $? == 1 ]]; then
+          echo "Not a valid word"
+          exit 1
+        fi
+        ;;
+      h)
+        exit # add help message
+        ;;
+      *)
+        ;;
+    esac
+  done
+}
+
 function main() {
   echo -en "${CLEAR_SCREEN}"
   declare -g ANSWER
   ANSWER=$(select_random_word)
-  [[ -n $1 ]] && ANSWER=${1^^}
+
+  set_options "$@"
 
   init_board 
 
@@ -147,8 +179,8 @@ function main() {
     reveal_row "${row}"
     [[ $win == 5 ]] && echo -e "\n${CLEAR_LINE}YOU WIN" && exit 0
   done
-  IFS=
+
-  result="${ANSWER//?/ & }"
+  result="${ANSWER//?/& }"
   result=${result%}
   echo -e "\n${CLEAR_LINE}YOU LOSE\n${result} ${RESET}" && exit 0
 }