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authorBenjamin Chausse <benjamin@chausse.xyz>2020-10-03 19:27:15 -0400
committerBenjamin Chausse <benjamin@chausse.xyz>2020-10-03 19:27:15 -0400
commite371d9edd474bcf89cf5d462eaccb8638900b390 (patch)
treeed07118f5c514a55f23a779a1507640e46fd9ed2 /.local/bin/pipesx
Initial commit
Diffstat (limited to '.local/bin/pipesx')
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diff --git a/.local/bin/pipesx b/.local/bin/pipesx
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+#!/bin/bash
+# Animated pipes.sh terminal screensaver at an angle.
+# Copyright (c) 2013-2015 Yu-Jie Lin
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# Website: https://github.com/pipeseroni/pipesX.sh
+
+VERSION=1.1.0
+
+W=$(tput cols) H=$(tput lines)
+# maximal random value + 1
+M=32768
+
+SETS=('╱╲' '/\' '..' 'oo' '\/')
+COLORS=(31 32 33 34 35 36 37)
+
+# default values
+N=1
+T=()
+I=0.05
+P=25
+R=$((W * H / 4))
+
+HELP="Usage: $(basename $0) [OPTIONS]
+Animated pipes.sh terminal screensaver at an angle.
+
+Options:
+
+ -n [1-] number of pipes. (Default: $N)
+ -t [0-$((${#SETS[@]} - 1))] types of pipes, can be used more than once. (Default: $T)
+ -t c[2chs] custom type of pipes.
+ -i [float] piping interval or maze generation interval. (Default: $I)
+ -P [0-100] probability of a turning pipe or of \\ in maze generation. (Default: $P)
+ -r [LIMIT] reset after x characters, 0 if no limit. (Default: $R)
+ -R random starting point.
+ -C no color.
+ -X maze generation.
+ -h this help message.
+ -v print version number.
+"
+
+while getopts "n:t:i:P:r:RCXhv" arg; do
+ case $arg in
+ n)
+ ((N = OPTARG > 0 ? OPTARG : N))
+ ;;
+ t)
+ if [[ "$OPTARG" = c?? ]]; then
+ T+=(${#SETS[@]})
+ SETS+=("${OPTARG:1}")
+ else
+ T+=($(((OPTARG >= 0 && OPTARG < ${#SETS[@]}) ? OPTARG : T)))
+ fi
+ ;;
+ i)
+ I=$OPTARG
+ ;;
+ P)
+ ((P = (OPTARG >= 0 && OPTARG <= 100) ? OPTARG : P))
+ ;;
+ r)
+ ((R = OPTARG >= 0 ? OPTARG : R))
+ ;;
+ R)
+ RNDSTART=1
+ ;;
+ C)
+ NOCOLOR=1
+ ;;
+ X)
+ MAZE=1
+ ;;
+ h)
+ echo -e "$HELP"
+ exit 0
+ ;;
+ v)
+ echo "$(basename -- "$0") $VERSION"
+ exit 0
+ esac
+done
+
+# set to default values if not by options
+((${#T[@]})) || T=(0)
+
+do_exit() {
+ # clear up standard input
+ read -t 0.001 && cat </dev/stdin>/dev/null
+
+ # terminal has no smcup and rmcup capabilities
+ ((FORCE_RESET)) && reset && exit 0
+
+ tput rmcup
+ tput cnorm
+ stty echo
+ ((NOCOLOR)) && echo -ne '\e[0m'
+ exit 0
+ }
+trap do_exit HUP TERM
+trap 'break 2' INT
+
+# No echo stdin and hide the cursor
+stty -echo
+tput smcup || FORCE_RESET=1
+tput civis
+tput clear
+
+# maze geneartion
+while [[ $MAZE ]] && clear; do
+ [[ $NOCOLOR ]] || echo -ne "\e[1;${COLORS[${#COLORS[@]} * RANDOM / M]}m"
+ for ((i = 0; i < W * H; i++ )); do
+ echo -ne ${SETS[T]:100 * RANDOM / M < P:1}
+ done
+ read -t $I -n 1 && [[ $REPLY =~ q|Q ]] && do_exit
+done
+
+# initialze values
+for ((n = 0; n < N; n++)); do
+ ((X[n] = RNDSTART ? (W + 2) * RANDOM / M : W / 2))
+ ((Y[n] = RNDSTART ? (H + 2) * RANDOM / M : H / 2))
+ D[n]=$((4 * RANDOM / M))
+ C[n]=${COLORS[${#COLORS[@]} * RANDOM / M]}
+ t[n]=${T[${#T[@]} * RANDOM / M]}
+done
+
+clear
+while REPLY=; read -t $I -n 1; [[ -z $REPLY ]] ; do
+ for ((n = 0; n < N; n++, CC = 0)); do
+ x=${X[n]} y=${Y[n]}
+ d=${D[n]} c=${C[n]}
+
+ # calculate new direction `d`
+ # 1 0
+ # \/ 4 directions 0 to 3
+ # /\
+ # 2 3
+ # valid directions: d: dd', d' is the new direction
+ # d
+ # 0: / 00 \ 01 03
+ # / / /\
+ # 1: / 10 \ 11 12
+ # \ \ /\
+ # 2: \/ 21 / 22 / 23
+ # / \
+ # 3: \/ 30 \ 32 \ 33
+ # / \
+ ((d = (100 * RANDOM / M) < P ? ((d + 1) + 2 * (RANDOM % 2)) % 4 : d))
+ ((e = (d + 1) % 4))
+
+ # calculate new position
+ # d' x' y'
+ # 0: x+1 y-1
+ # 1: x-1 y-1
+ # 2: x-1 y+1
+ # 3: x+1 y+1
+ ((xn = e < 2 ? x + 1 : x - 1))
+ ((yn = d < 2 ? y - 1 : y + 1))
+
+ # adjust position and change color?
+ ((d < 2 && y == 0)) && ((yn--, CC=1))
+ ((e > 1 && x == 0)) && ((xn--, CC=1))
+ ((d > 1 && y == H)) && ((yn++, CC=1))
+ ((e < 2 && x == W)) && ((xn++, CC=1))
+ ((CC)) && c=${COLORS[${#COLORS[@]} * RANDOM / M]}
+ ((CC)) && t[n]=${T[${#T[@]} * RANDOM / M]}
+
+ # warp pipe
+ ((xn = (xn + W + 1) % (W + 1)))
+ ((yn = (yn + H + 1) % (H + 1)))
+
+ # calculate position in terminal
+ # d' xt yt
+ # 0: x' y'+1
+ # 1: x'+1 y'+1
+ # 2: x'+1 y'
+ # 3: x' y'
+ ((xt = e < 2 ? xn : xn + 1))
+ ((yt = d < 2 ? yn + 1 : yn))
+
+ echo -ne "\e[${yt};${xt}H"
+ [[ $NOCOLOR ]] || echo -ne "\e[1;${c}m"
+ echo -n "${SETS[t[n]]:d%2:1}"
+
+ X[n]=$xn Y[n]=$yn
+ D[n]=$d C[n]=$c
+ done
+ ((R)) && ((r += N, r >= R)) && r=0 && clear
+done
+
+do_exit