basic keyboard function

wordle

@@ -23,10 +23,11 @@ declare -gr SHOW_CURSOR=$'\e[?25h'
 declare -gr GOHOME=$'\e[H'
 declare -gr DOWN1=$'\e[1E'
 declare -gr INDENT=$'\e[1C'
+declare -gr DOWN3=$'\e[9;0H'
 
 function main() {
   declare -g ANSWER
-  declare -g POOL='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+  declare -g POOL='QWERTYUIOPASDFGHJKLZXCVBNM'
   ANSWER=$(select_random_word)
 
   set_options "$@"
@@ -40,6 +41,7 @@ function main() {
   declare row
   for (( row=0; row<HEIGHT; row++ )); do
     declare GUESS
+    [[ "${KEYBOARD}" == 1 ]] && render_keyboard
     GUESS=$(retrive_guess)
     check_guess "${GUESS}" "${row}" ; win=$?
 
@@ -67,6 +69,7 @@ function set_options() {
   declare -g HARD_MODE=0
   declare -g STRICT_HARD_MODE=0
   declare -g DELAY=0.5
+  declare -g KEYBOARD=1
 
   while getopts "bw:HSdh" OPT; do
     case "${OPT}" in
@@ -149,10 +152,7 @@ function retrive_guess() {
     read -r -p "${CLEAR_UP1}Must be 5 letters: " GUESS
   done 
   declare valid_guess
-  validate_guess "${GUESS}" &
-  declare validation_pid=$!
-  wait $validation_pid
-  valid_guess=$?
+  validate_guess "${GUESS}" ; valid_guess=$?
 
   [[ ${valid_guess} == 1 ]] && GUESS=$(retrive_guess "Not A Valid Word")
   [[ ${valid_guess} == 2 ]] && GUESS=$(retrive_guess "Not A Valid Guess")
@@ -163,6 +163,20 @@ function retrive_guess() {
   echo -n "${GUESS^^}"
 }
 
+function render_keyboard() {
+  declare pos=$(( BORDER*2+7 ))
+  echo -en "\e[$pos;0H" 
+  for (( i=0; i<${#POOL}; i++ )); do
+    if [[ $i == 10 ]]; then
+      echo -en "${NEWLINE}${INDENT}"
+    elif [[ $i == 19 ]]; then
+      echo -en "${NEWLINE}  "
+    fi
+    echo -n "${POOL:$i:1} "
+  done
+  echo -en "${NEWLINE}"
+}
+
 function validate_guess() {
   declare GUESS=$1
 
@@ -239,7 +253,8 @@ function check_guess() {
       chars="${chars/${_char}/}"
       yellows[c]="${_char}"
       BOARD[$_row,$c]="${BOLD}${LETTER}${YELLOW} ${_char} "
-      continue
+    else
+      POOL="${POOL/${_char}/_}"
     fi
     [[ " ${yellows[*]} " =~ ${_char} ]] && continue
     [[ " ${greens[*]} " =~ ${_char} ]] && continue