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70 lines
1.8 KiB
Bash
70 lines
1.8 KiB
Bash
#!/usr/bin/env bash
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# Courtesy of @bvierra and company (long ago, pre-cPanel)
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### Customization:
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blue="\033[0;34m"
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brightblue="\033[1;34m"
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cyan="\033[0;36m"
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brightcyan="\033[1;36m"
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green="\033[0;32m"
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brightgreen="\033[1;32m"
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red="\033[0;31m"
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brightred="\033[1;31m"
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white="\033[1;37m"
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black="\033[0;30m"
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grey="\033[0;37m"
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darkgrey="\033[1;30m"
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# Choose the colors that will be used from the above list
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# space-separated list
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# e.g. `colors=($green $brightgreen $darkgrey $white)`
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colors=($green $brightgreen)
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### End customization
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### Do not edit below this line
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spacing=${1:-100} # the likelihood of a character being left in place
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scroll=${2:-0} # 0 for static, positive integer determines scroll speed
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screenlines=$(expr `tput lines` - 1 + $scroll)
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screencols=$(expr `tput cols` / 2 - 1)
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# chars=(a b c d e f g h i j k l m n o p q r s t u v w x y z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 ^)
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# charset via Carl:
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chars=(ｱ ｲ ｳ ｴ ｵ ｶ ｷ ｸ ｹ ｺ ｻ ｼ ｽ ｾ ｿ ﾀ ﾁ ﾂ ﾃ ﾄ ﾅ ﾆ ﾇ ﾈ ﾉ ﾊ ﾋ ﾌ ﾍ ﾎ ﾏ ﾐ ﾑ ﾒ ﾓ ﾔ ﾕ ﾖ ﾗ ﾘ ﾙ ﾚ ﾛ ﾜ ﾝ)
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count=${#chars[@]}
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colorcount=${#colors[@]}
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trap "tput sgr0; clear; exit" SIGTERM SIGINT
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if [[ $1 =~ '-h' ]]; then
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echo "Display a Matrix(ish) screen in the terminal"
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echo "Usage: matrix [SPACING [SCROLL]]"
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echo "Example: matrix 100 0"
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exit 0
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fi
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clear
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tput cup 0 0
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while :
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do for i in $(eval echo {1..$screenlines})
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do for i in $(eval echo {1..$screencols})
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do rand=$(($RANDOM%$spacing))
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case $rand in
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0)
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printf "${colors[$RANDOM%$colorcount]}${chars[$RANDOM%$count]} "
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;;
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1)
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printf " "
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;;
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*)
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printf "\033[2C"
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;;
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esac
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done
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printf "\n"
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# sleep .005
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done
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tput cup 0 0
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done |