Bash loop hording keypress input

Shell Programming and Scripting
1

I have a bash loop that waits for a single key press, then does $something depending on what $key is pressed before refreshing the screen with updated data. The problem I have is that the script will store additional key presses and chain them together causing the screen to redraw and the script seemingly halt while the backlog of key presses get ran. Is there any way to force the script to wait and/or discard additional key presses until the screen finishes a single refresh. Script looks similar to the below

#!/bin/bash
 default vars
 loop
   drawscreen
   wait for input
   if 'a'
     do something
     back to top of loop
   if 'b"
     do anything
     back to top of loop
   if 'c'
     break
 done

I am using 'read -n1 -e answer' for input if that makes a difference

2

You might find this useful, it is similar, it should bundle multiple things together.

Or you could resist the elevator principle and only push the key once.