I remember a long time ago having an old mobile phone which had a game on it which I believe was called something like "Snake" or "Snakes" and it was basically you get to change the direction of the snake with the arrow keys, the snake cannot touch itself (or game over), but if it touches the edges of the map it will simply appear at the other side. The aim of the game was to get the snake to eat food, but with each bit of food (every time it ate some some more would appear somewhere else, but normally one at a time) the snake would get a little bit longer making it harder to play the game.
I'm sure that you will all be familiar with this game, so I was wondering (as I miss this game and can only find odd 3D versions) if there is a version of this game in Terminal? I was hoping it would stick to the original and would go something along the lines of ASCII perhaps?
I am running Ubuntu GNOME 16.04.1 with GNOME 3.20, is there such a free application in the official repositories (which is where I would prefer it to come from)?
3 Answers
", is there such a free application in the official repositories (which is where I would prefer it to come from)?"
First there is nsnake that should meet your need exactly
sudo apt-get install nsnake 
Two more I found are snake4 this opens in a new window though, so not a terminal game and gnibbles but I could not get it to run.
Centipede
The game is called centipede but it's website is no longer being maintained. This is a bash game requiring no downloads and an interesting study for those interested in bash scripts.
Options
You can change the size of the screen to make it smaller and more challenging by changing these variables:
LASTCOL=40 # Last col of game area LASTROW=20 # Last row of game area Check out options for getting "pretty characters":
# Prettier characters but not supported # by all termtypes/locales #SNAKECHAR="\0256" # Character to use for snake #WALLCHAR="\0244" # Character to use for wall #APPLECHAR="\0362" # Character to use for apples # # Normal boring ASCII Chars SNAKECHAR="@" # Character to use for snake WALLCHAR="X" # Character to use for wall APPLECHAR="o" # Character to use for apples Remove the comment from the first three code lines and add a comment (#) to the last three code lines.
Complete bash code
Here's the complete code:
#!/bin/bash # # Centipede game # # v2.0 # # Author: # # Functions drawborder() { # Draw top tput setf 6 tput cup $FIRSTROW $FIRSTCOL x=$FIRSTCOL while [ "$x" -le "$LASTCOL" ]; do printf %b "$WALLCHAR" x=$(( $x + 1 )); done # Draw sides x=$FIRSTROW while [ "$x" -le "$LASTROW" ]; do tput cup $x $FIRSTCOL; printf %b "$WALLCHAR" tput cup $x $LASTCOL; printf %b "$WALLCHAR" x=$(( $x + 1 )); done # Draw bottom tput cup $LASTROW $FIRSTCOL x=$FIRSTCOL while [ "$x" -le "$LASTCOL" ]; do printf %b "$WALLCHAR" x=$(( $x + 1 )); done tput setf 9 } apple() { # Pick coordinates within the game area APPLEX=$[( $RANDOM % ( $[ $AREAMAXX - $AREAMINX ] + 1 ) ) + $AREAMINX ] APPLEY=$[( $RANDOM % ( $[ $AREAMAXY - $AREAMINY ] + 1 ) ) + $AREAMINY ] } drawapple() { # Check we haven't picked an occupied space LASTEL=$(( ${#LASTPOSX[@]} - 1 )) x=0 apple while [ "$x" -le "$LASTEL" ]; do if [ "$APPLEX" = "${LASTPOSX[$x]}" ] && [ "$APPLEY" = "${LASTPOSY[$x]}" ]; then # Invalid coords... in use x=0 apple else x=$(( $x + 1 )) fi done tput setf 4 tput cup $APPLEY $APPLEX printf %b "$APPLECHAR" tput setf 9 } growsnake() { # Pad out the arrays with oldest position 3 times to make snake bigger LASTPOSX=( ${LASTPOSX[0]} ${LASTPOSX[0]} ${LASTPOSX[0]} ${LASTPOSX[@]} ) LASTPOSY=( ${LASTPOSY[0]} ${LASTPOSY[0]} ${LASTPOSY[0]} ${LASTPOSY[@]} ) RET=1 while [ "$RET" -eq "1" ]; do apple RET=$? done drawapple } move() { case "$DIRECTION" in u) POSY=$(( $POSY - 1 ));; d) POSY=$(( $POSY + 1 ));; l) POSX=$(( $POSX - 1 ));; r) POSX=$(( $POSX + 1 ));; esac # Collision detection ( sleep $DELAY && kill -ALRM $$ ) & if [ "$POSX" -le "$FIRSTCOL" ] || [ "$POSX" -ge "$LASTCOL" ] ; then tput cup $(( $LASTROW + 1 )) 0 stty echo echo " GAME OVER! You hit a wall!" gameover elif [ "$POSY" -le "$FIRSTROW" ] || [ "$POSY" -ge "$LASTROW" ] ; then tput cup $(( $LASTROW + 1 )) 0 stty echo echo " GAME OVER! You hit a wall!" gameover fi # Get Last Element of Array ref LASTEL=$(( ${#LASTPOSX[@]} - 1 )) #tput cup $ROWS 0 #printf "LASTEL: $LASTEL" x=1 # set starting element to 1 as pos 0 should be undrawn further down (end of tail) while [ "$x" -le "$LASTEL" ]; do if [ "$POSX" = "${LASTPOSX[$x]}" ] && [ "$POSY" = "${LASTPOSY[$x]}" ]; then tput cup $(( $LASTROW + 1 )) 0 echo " GAME OVER! YOU ATE YOURSELF!" gameover fi x=$(( $x + 1 )) done # clear the oldest position on screen tput cup ${LASTPOSY[0]} ${LASTPOSX[0]} printf " " # truncate position history by 1 (get rid of oldest) LASTPOSX=( `echo "${LASTPOSX[@]}" | cut -d " " -f 2-` $POSX ) LASTPOSY=( `echo "${LASTPOSY[@]}" | cut -d " " -f 2-` $POSY ) tput cup 1 10 #echo "LASTPOSX array ${LASTPOSX[@]} LASTPOSY array ${LASTPOSY[@]}" tput cup 2 10 echo "SIZE=${#LASTPOSX[@]}" # update position history (add last to highest val) LASTPOSX[$LASTEL]=$POSX LASTPOSY[$LASTEL]=$POSY # plot new position tput setf 2 tput cup $POSY $POSX printf %b "$SNAKECHAR" tput setf 9 # Check if we hit an apple if [ "$POSX" -eq "$APPLEX" ] && [ "$POSY" -eq "$APPLEY" ]; then growsnake updatescore 10 fi } updatescore() { SCORE=$(( $SCORE + $1 )) tput cup 2 30 printf "SCORE: $SCORE" } randomchar() { [ $# -eq 0 ] && return 1 n=$(( ($RANDOM % $#) + 1 )) eval DIRECTION=\${$n} } gameover() { tput cvvis stty echo sleep $DELAY trap exit ALRM tput cup $ROWS 0 exit } ###########################END OF FUNCS########################## # Prettier characters but not supported # by all termtypes/locales #SNAKECHAR="\0256" # Character to use for snake #WALLCHAR="\0244" # Character to use for wall #APPLECHAR="\0362" # Character to use for apples # # Normal boring ASCII Chars SNAKECHAR="@" # Character to use for snake WALLCHAR="X" # Character to use for wall APPLECHAR="o" # Character to use for apples # SNAKESIZE=3 # Initial Size of array aka snake DELAY=0.2 # Timer delay for move function FIRSTROW=3 # First row of game area FIRSTCOL=1 # First col of game area LASTCOL=40 # Last col of game area LASTROW=20 # Last row of game area AREAMAXX=$(( $LASTCOL - 1 )) # Furthest right play area X AREAMINX=$(( $FIRSTCOL + 1 )) # Furthest left play area X AREAMAXY=$(( $LASTROW - 1 )) # Lowest play area Y AREAMINY=$(( $FIRSTROW + 1)) # Highest play area Y ROWS=`tput lines` # Rows in terminal ORIGINX=$(( $LASTCOL / 2 )) # Start point X - use bc as it will round ORIGINY=$(( $LASTROW / 2 )) # Start point Y - use bc as it will round POSX=$ORIGINX # Set POSX to start pos POSY=$ORIGINY # Set POSY to start pos # Pad out arrays ZEROES=`echo |awk '{printf("%0"'"$SNAKESIZE"'"d\n",$1)}' | sed 's/0/0 /g'` LASTPOSX=( $ZEROES ) # Pad with zeroes to start with LASTPOSY=( $ZEROES ) # Pad with zeroes to start with SCORE=0 # Starting score clear echo " Keys: W - UP S - DOWN A - LEFT D - RIGHT X - QUIT If characters do not display properly, consider changing SNAKECHAR, APPLECHAR and WALLCHAR variables in script. Characters supported depend upon your terminal setup. Press Return to continue " stty -echo tput civis read RTN tput setb 0 tput bold clear drawborder updatescore 0 # Draw the first apple on the screen # (has collision detection to ensure we don't draw # over snake) drawapple sleep 1 trap move ALRM # Pick a random direction to start moving in DIRECTIONS=( u d l r ) randomchar "${DIRECTIONS[@]}" sleep 1 move while : do read -s -n 1 key case "$key" in w) DIRECTION="u";; s) DIRECTION="d";; a) DIRECTION="l";; d) DIRECTION="r";; x) tput cup $COLS 0 echo "Quitting..." tput cvvis stty echo tput reset printf "Bye Bye!\n" trap exit ALRM sleep $DELAY exit 0 ;; esac done There is a collection of command-line games called bsdgames.
You can install it by typing sudo apt-get install bsdgames or sudo apt install bsdgames.
After succesfull installation, you can launch game from this list (just by typing its name into terminal)
adventure (6) - an exploration game sol (6) - a collection of card games which are easy to play with the aid of a mouse. arithmetic (6) - quiz on simple arithmetic atc (6) - air traffic controller game backgammon (6) - the game of backgammon battlestar (6) - a tropical adventure game bcd (6) - "reformat input as punch cards, paper tape or morse code" boggle (6) - word search game caesar (6) - decrypt caesar ciphers canfield (6) - the solitaire card game canfield cfscores (6) - the solitaire card game canfield chkfont (6) - checks figlet 2.0 and up font files for format errors countmail (6) - be obnoxious about how much mail you have cowsay (6) - configurable speaking/thinking cow (and a bit more) cribbage (6) - the card game cribbage dab (6) - Dots and Boxes game espdiff (6) - apply the appropriate transformation to a set of patches figlet-figlet (6) - display large characters made up of ordinary screen characters figlist (6) - lists figlet fonts and control files fortune (6) - print a random, hopefully interesting, adage gnome-mahjongg (6) - A matching game played with Mahjongg tiles gnome-mines (6) - The popular logic puzzle minesweeper gnome-sudoku (6) - puzzle game for the popular Japanese sudoku logic puzzle go-fish (6) - play "Go Fish" gomoku (6) - game of 5 in a row hack (6) - exploring The Dungeons of Doom hangman (6) - computer version of the game hangman hunt (6) - a multi-player multi-terminal game huntd (6) - hunt daemon, back-end for hunt game intro (6) - introduction to games lolcat (6) - rainbow coloring for text mille (6) - play Mille Bornes monop (6) - Monopoly game morse (6) - "reformat input as punch cards, paper tape or morse code" number (6) - convert Arabic numerals to English phantasia (6) - an interterminal fantasy game pig (6) - eformatray inputway asway Igpay Atinlay pom (6) - display the phase of the moon ppt (6) - "reformat input as punch cards, paper tape or morse code" primes (6) - generate primes quiz (6) - random knowledge tests rain (6) - animated raindrops display random (6) - random lines from a file or random numbers robots (6) - fight off villainous robots rot13 (6) - decrypt caesar ciphers sail (6) - multi-user wooden ships and iron men snake (6) - display chase game snscore (6) - display chase game teachgammon (6) - learn to play backgammon tetris-bsd (6) - the game of tetris trek (6) - trekkie game wargames (6) - shall we play a game? worm (6) - Play the growing worm game worms (6) - animate worms on a display terminal wtf (6) - translates acronyms for you wump (6) - hunt the wumpus in an underground cave These games are usually exited by pressing Ctrl+C
