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73 lines
2.1 KiB
Bash
73 lines
2.1 KiB
Bash
#!/bin/bash
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# Weaving with simple math in terminal
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# https://bitbucket.org/livibetter/weave.sh
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# Copyright (c) 2013 Yu-Jie Lin
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# this software and associated documentation files (the "Software"), to deal in
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# the Software without restriction, including without limitation the rights to
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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# of the Software, and to permit persons to whom the Software is furnished to do
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# so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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VERSION=0.1.0
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# Characters and colors for vertical and horizontal lines
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: ${char_v:='|'} ${char_h:='-'}
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: ${color_v:='\e[32;1m'} ${color_h:='\e[31;1m'}
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# Sleep delays
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: ${sleep_v:=0.01} ${sleep_h:=0.01}
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: ${sleep_end:=5}
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: ${eval_h:="$1"} Get evaluation code from '$1'
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: ${eval_h:='(((x+y)%2))'} , or set to a default pattern
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: ${show_eval_h:=no} "yes" to print out evaluation code
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W=$(tput cols) H=$(tput lines)
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draw_v() {
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local line y
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printf -v line '%*s' $W ; line=${line// /$char_v}
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for ((y=1; y<=H; y++)); do
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echo -ne "\e[${y};1H${color_v}${line}"
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sleep $sleep_v
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done
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}
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draw_h() {
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local x y
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for ((x=1; x<=W; x++)); do
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for ((y=1; y<=H; y++)); do
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eval "$eval_h" && echo -ne "\e[${y};${x}H${color_h}${char_h}"
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done
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sleep $sleep_h
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done
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}
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main() {
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clear
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draw_v
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draw_h
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[[ $show_eval_h == yes ]] && echo -ne "\e[$H;1H\e[0m${eval_h:0:$W}"
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sleep $sleep_end
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}
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main
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