Create xmastree.sh

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deflax 2020-12-19 04:34:43 +02:00 committed by GitHub
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commit 22f7a9801f
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#!/bin/bash
trap "tput reset; tput cnorm; exit" 2
clear
tput civis
lin=2
col=$(($(tput cols) / 2))
c=$((col-1))
est=$((c-2))
color=0
tput setaf 2; tput bold
# Tree
for ((i=1; i<20; i+=2))
{
tput cup $lin $col
for ((j=1; j<=i; j++))
{
echo -n \*
}
let lin++
let col--
}
tput sgr0; tput setaf 3
# Trunk
for ((i=1; i<=2; i++))
{
tput cup $((lin++)) $c
echo 'mWm'
}
new_year=$(date +'%Y')
let new_year++
tput setaf 1; tput bold
tput cup $lin $((c - 6)); echo MERRY CHRISTMAS
tput cup $((lin + 1)) $((c - 10)); echo And lots of CODE in $new_year
let c++
k=1
# Lights and decorations
while true; do
for ((i=1; i<=35; i++)) {
# Turn off the lights
[ $k -gt 1 ] && {
tput setaf 2; tput bold
tput cup ${line[$[k-1]$i]} ${column[$[k-1]$i]}; echo \*
unset line[$[k-1]$i]; unset column[$[k-1]$i] # Array cleanup
}
li=$((RANDOM % 9 + 3))
start=$((c-li+2))
co=$((RANDOM % (li-2) * 2 + 1 + start))
tput setaf $color; tput bold # Switch colors
tput cup $li $co
echo o
line[$k$i]=$li
column[$k$i]=$co
color=$(((color+1)%8))
# Flashing text
sh=1
for l in C O D E
do
tput cup $((lin+1)) $((c+sh))
echo $l
let sh++
sleep 0.01
done
}
k=$((k % 2 + 1))
done