INDEX

2024-03-13 16:40 - Typing test

I wrote a basic typing test in bash to trial out these backslash string commands
	stty sane # Do this first of all, or you'll find unexpected issues with alignment

	# Just add these in a string with "echo -en" and it does as you'd expect
	# Although bare in mind inputing a character inherently moves you right
	GO_UP="\033[1A"; GO_DOWN="\033[1B"; GO_LEFT="\033[1D"; GO_RIGHT="\033[1C"
	BOLD_ON="\e[1m"; BOLD_OFF="\e[0m"
	TXT_BLACK="\033[30m"; BG_PLAIN="\033[0m"; BG_TRUE="\033[44m"; BG_FALSE="\033[41m"

So how do you actually make a typing test from this?
	# Get a list of N random words, in a line, with no spacing at the end
	# Will later make this read from a file and use "fold" to word wrap it
	grep -v "'" /usr/share/dict/british | shuf -n${textWords} | tr '\n' ' ' | sed 's/.\{1\}$//
	
	time0=$(date +%s.%N); typingTest; time1=$(date +%s.%N) # Track timing of test

	read -rsn1 char # Read a single character, with no output
	charExp="${text:pos-1:1}" # Get the expected character at that position in the text

	# Have a line of text, gray=unchecked, blue=correct, red=incorrect
	# Cursor moves along this line of text and overwrites formatting based on conditionals
	echo -en "${TXT_BLACK}"; echo -en "${BG_TRUE}${charExp}"; echo -en "${BG_PLAIN}"

	# Want to be able to edit so test for backspace characters
	[[ $char == $'\b' ]] || [[ $char == $'\177' ]]
	echo -en "${GO_LEFT}${charExp}${GO_LEFT}" # Move cursor back and add in unformatted character

	# Using a "scoreTrack" to monitor accuracy - 1=correct 0=false [WORD -> WARD = 1011]
	score=`grep -o "1" <<< "$scoreTrack" | wc -l` # Count how many 1s are present
	finalAccuracy=`echo "(${score}/${textLen}) * 100" | bc` # Get % scale of accuracy

	# Check the timing (I think this is vaguely wrong anyway)
	finalSpeed=`echo "scale=2; ( ${textWords}/(${time1} - ${time0}) )*60*2" | bc`

Next plan is add mutliline tests, allow piped input and improve progressive timing system
Also add live metrics (clock), add different tests, add different views (sliding text?)
Might be worth making a marquee in bash too


2024-03-18 14:00 - Early version 2

Replaced the system of random words with an option to read a file
	# A nice system for looping through arguments and assigning their contents without shifts
	for (( i=1; i <= "$#"; i++ )); do
	  case ${!i} in
	    -f|--file)
	      ((i++)); textfile="${!i}"
	      ;;
	  esac
	done
	
	# Read a file and filter it into just alphanumeric words
	text=`cat "$1" | tr -d '\n\t' | tr -cd '[:space:][:alnum:]' | tr -s '[:space:]'`

	# Fold the text based on dimensions of the screen
	function foldtext() {
	  # "tput cols" gets the number of columns on the terminal
	  winWidth=`tput cols`
	  # New lines -> Spaces. Remove duplicate spaces. Word wrap around current terminal width
	  text=`echo "$text" | tr '\n' ' ' | tr -s ' ' | fold -s -w "$winWidth"`;
	}

From this I just need to integrate in the typing test feature and some scrolling/line position
Should otherwise be the same system entirely.