add README. remove duplicate fun scripts

1 files changed, 0 insertions, 159 deletions

diff --git a/fun/pipesx.sh b/fun/pipesx.sh
deleted file mode 100644
index 02ed325..0000000
--- a/fun/pipesx.sh
+++ /dev/null
@@ -1,159 +0,0 @@
-#!/bin/bash
-W=$(tput cols) H=$(tput lines)
-# maximal random value + 1
-M=32768
-
-SETS=('╱╲' '/\')
-COLORS=(31 32 33 34 35 36 37)
-
-# default values
-N=1
-T=0
-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))]    type of pipes. (Default: $T)
-  -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.
-"
-
-while getopts "n:t:i:P:r:RCXh" arg; do
-  case $arg in
-    n)
-      ((N = OPTARG > 0 ? OPTARG : N))
-      ;;
-    t)
-      ((T = (OPTARG >= 0 && OPTARG < ${#SETS[@]}) ? OPTARG : T))
-      ;;
-    i)
-      I=$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
-      ;;
-  esac
-done
-
-do_exit() {
-  # Show cursor and echo stdin
-  echo -ne "\e[?25h"
-  stty echo
-  clear
-  exit 0
-  }
-trap do_exit INT TERM
-
-# No echo stdin and hide the cursor
-stty -echo
-echo -ne "\e[?25l"
-
-# 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]}
-done
-
-clear
-while :; 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]}
-
-    # 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 "${SETS[T]:d%2:1}"
-
-    X[n]=$xn Y[n]=$yn
-    D[n]=$d C[n]=$c
-  done
-  read -t $I -n 1 && [[ $REPLY =~ q|Q ]] && do_exit
-  ((R)) && ((r += N, r >= R)) && r=0 && clear
-done
-
-do_exit
\ No newline at end of file