xonix — a game
Synopsis
xonix [ -toolkitoption ... ]Description
The xonix application consists of a playing area and a status display below.The status display shows the current values for level, filled area (in percent), number of players (lifes), and elapsed time.
The playing area has several regions. The brown region (initially only the border) is ``filled region'', where the player can move, starting from the top left corner. Beware of the bouncing yellow eater(s) that do also move across filled regions however, if they hit the player, a life will go away. The flyers can only bounce across the green (so-called empty) area in the middle.
The purpose of the game is to move the player across the empty region (whereby it leaves his way in a brown color to show where it came along), and finally cut off a piece of unfilled region by moving him back to some filled region. If the player itself or the (unfilled yet) way will be hit by a flyer, a life will be lost again. Once the player's way reached another part of filled region, the way and all adjacent unfilled regions where there is no flyer in will be filled in turn. One level has completed as soon as 75 % of the originally unfilled area have been filled this way.
Every level, there will be one flyer more. Every second level, an additional player will be granted. Every fifth level, an additional eater will be fired off.
The default keys to move the player around are the arrow keys. This can be changed in the app-defaults file, however, as well as the timeout between single steps (defaulting to 50 ms equal 20 moves per second).
The default keys to immediately quit the game are `Q' and `Escape'. Hitting `P' or iconizing the window with the window manager will pause the game; de-iconizing will continue it.
There is also a high-score file, /var/cache/xonix/xonix.scores. It records the top ten xonix players for that machine. As a special compile-time option, a mail is sent to the previous xonix score leader when he's lost his first rank.
Widgets
Xonix uses the X Toolkit and the Athena Widget Set. Below is the widget structure of the xonix application. Indentation indicates hierarchical structure. The widget class name is given first, followed by the widget instance name.
Xonix xonix
VendorShellExt shellext
Form container
MenuButton game_button
Canvas canvas
Form status
Form level
Label lev_label
Label lev_d10
Label lev_d1
Form percentage
Label perc_label
Label perc_d10
Label perc_d1
Form runner
Label run_label
Label run_d10
Label run_d1
Form time
Label time_label
Label mins_d10
Label mins_d1
Label time_colon
Label secs_d10
Label secs_d1
SimpleMenu game_menu
SmeBSB about
SmeLine game_l1
SmeBSB quit
TransientShell about_shell
VendorShellExt shellext
Box about_box
Label about_msg
Command about_done
TransientShell gameover_shell
VendorShellExt shellext
Box gameover_box
Label gameover_msg
Box gameover_buttonbox
Command gameover_iknow
Command gameover_goon
Options
All the standard toolkit options apply. It's not particularly useful to attempt forcing any geometry however.
Bugs
Source code comments are still mostly in German. Some files require the unusal tab width of 4 in order to be displayed correctly.It should be possible to pass some parameters from the command line as well (e.g. the time step value), which is currently only possible by the back-door via the -xrm toolkit option.
Mail any suggestions to <joerg_wunsch@uriah.heep.sax.de>.