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File name : mondrian
Content :
#!/bin/bash
# N.B.: Use bash for $RANDOM
#
#    mondrian: randomly generate some Modrian art in tmux
#
#    Copyright (C) 2011-2014 Dustin Kirkland
#
#    Authors: Dustin Kirkland <kirkland@byobu.org>
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, version 3 of the License.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

trap "tput reset" EXIT HUP INT QUIT TERM KILL ILL TRAP ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM

# Special mode, argv[1]="color", paint the screen
if [ "$1" = "color" ] && [ -n "$2" ]; then
	i=0
	out=
	sleep 0.2
	count=$(stty size | awk '{print $1*$2}')
	perl -e "print color 'reset'; printf \"\x1b[48;5;${2}m%${count}s\", \" \";";
	head -n1
	tmux kill-window -t mondrian
	exit 0
fi

get_random_direction() {
	if [ $((RANDOM % 2)) -eq 0 ]; then
		echo "-v"
	else
		echo "-h"
	fi
}

get_random_numbers() {
	local max="$1" R=0 B=0 Y=0
	R=$((RANDOM % max + 1))
	B=$((RANDOM % max + 1))
	Y=$((RANDOM % max + 1))
	while [ "$B" = "$R" ] || [ "$B" = "$Y" ]; do
		B=$((RANDOM % max + 1))
	done
	while [ "$Y" = "$R" ] || [ "$Y" = "$B" ]; do
		Y=$((RANDOM % max + 1))
	done
	_RET="$R $B $Y"
}

red_color=196
yellow_color=226
blue_color=57
white_color=231

tmux kill-window -t mondrian
tmux new-window -n mondrian "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	set-option -g pane-active-border-style bg=colour231 \; \
	set-option -g pane-active-border-style fg=black \; \
	set-option -g pane-border-style bg=colour231 \; \
	set-option -g pane-border-style fg=black \; \
	split-window $(get_random_direction) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 2)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 3)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 4)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $red_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 5)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 6)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $yellow_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 7)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 8)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $blue_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 9)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 9)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 10)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 11)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 12)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 13)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 14)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 15)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 16)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 17)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 18)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 19)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \
	split-window $(get_random_direction) -t $((RANDOM % 20)) "$BYOBU_PREFIX/lib/byobu/include/mondrian color $white_color" \; \

exit 0