first commit of the snakelogan cursive banner writer

collection

@@ -0,0 +1,4 @@
+//#!/bin/zsh
+iconv -f cp437 -t utf-8 < input.ans > output.txt ;
+sed -e "s/.\{80\}/&\n\r/" < input.txt > output.txt 
+

snakelogan

@@ -0,0 +1,123 @@
+#!/bin/zsh
+
+
+_STTY=$(stty -g)    # Save current terminal setup
+#printf   "\e[2J"    # clear screen, set cursos at beginning
+stty -echo -icanon  # Turn off line buffering
+
+# VARIABLES
+typeset -A IMAGE
+X=0 
+Y=24
+snake='═'
+
+vertical=false
+forward=true
+upward=true
+
+function start_the_snake() {
+	rm thesnake
+	for i in {0..29}
+	do
+		for j in {0..79}
+		do
+			IMAGE["${i};${j}"]=' ' ; printf ${IMAGE["${i};${j}"]}
+		done
+	done
+}
+
+function save_the_snake() {
+	for i in {0..29}
+	do
+		for j in {0..79}
+		do
+			printf ${IMAGE["${i};${j}"]}
+		done
+	done >> thesnake
+}
+
+function show_the_snake() {
+	clear
+	for i in {0..29}
+	do
+		for j in {0..79}
+		do
+			printf ${IMAGE["${i};${j}"]}
+		done
+	done
+}
+function at_exit() {
+	printf "\e[?9l"          # Turn off mouse reading
+	printf "\e[?12l\e[?25h"  # Turn on cursor
+	stty "$_STTY"            # reinitialize terminal settings
+	clear
+	exit
+}
+
+#═ ║╒ ╓ ╔ ╕ ╖ ╗ ╘ ╙ ╚ ╛ ╜ ╝ ╞ ╟  
+#╠ ╡ ╢ ╣ ╤ ╥ ╦ ╧ ╨ ╩ ╪ ╫ ╬ 
+
+function move_snake_up() {
+	if [ "$vertical" = false ] ; then
+		if [ "$forward" = true ] ; then
+			snake='╝'
+		else
+			snake='╚'
+		fi
+		IMAGE["${Y};${X}"]=$snake ; Y=$((Y-1)) ; vertical=true ; upward=true
+	else
+		snake='║' ; IMAGE["${Y};${X}"]=$snake ; Y=$((Y-1))
+	fi
+}
+
+function move_snake_down() {
+	if [ "$vertical" = false ] ; then
+		if [ "$forward" = true ] ; then
+			snake='╗'
+		else
+			snake='╔'
+		fi
+		IMAGE["${Y};${X}"]=$snake ; Y=$((Y+1)) ; vertical=true ; upward=false
+	else
+		snake='║' ; IMAGE["${Y};${X}"]=$snake ; Y=$((Y+1))
+	fi
+}
+
+function move_snake_forward() {
+	if [ "$vertical" = true ] ; then
+		if [ "$upward" = true ] ; then
+			snake='╔'
+		else
+			snake='╚'
+		fi
+		IMAGE["${Y};${X}"]=$snake ; X=$((X+1)) ; vertical=false ; forward=true
+	else
+		snake='═' ; IMAGE["${Y};${X}"]=$snake ; X=$((X+1))
+	fi
+}
+
+function move_snake_backward() {
+	if [ "$vertical" = true ] ; then
+		if [ "$upward" = true ] ; then
+			snake='╗'
+		else
+			snake='╝'
+		fi
+		IMAGE["${Y};${X}"]=$snake ; X=$((X-1)) ; vertical=false ; forward=false
+	else
+		snake='═' ; IMAGE["${Y};${X}"]=$snake ; X=$((X-1))
+	fi
+}
+
+# Main #
+start_the_snake
+while read -s -k 1 cr;
+do
+	case "$cr" in
+		w)	move_snake_up ; show_the_snake ;;
+		s)  move_snake_down ; show_the_snake ;;
+		a)	move_snake_backward ; show_the_snake ;;
+		d)  move_snake_forward ; show_the_snake ;;
+		q)	save_the_snake && at_exit ;;
+	esac
+done

thesnake

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