The asteroids Reference Manual

This is the asteroids Reference Manual, generated automatically by Declt version 4.0 beta 2 "William Riker" on Wed Jun 15 03:16:04 2022 GMT+0.

1 Introduction
2 Systems
- 2.1 asteroids
3 Files
- 3.1 Lisp
- 3.2 Static
4 Packages
- 4.1 asteroids
5 Definitions
- 5.1 Public Interface
  - 5.1.1 Ordinary functions
  - 5.1.2 Standalone methods
- 5.2 Internals
Appendix A Indexes

1 Introduction

asteroids

Classic asteroids arcade game in Common Lisp, using SDL.

Originally ported from Python by andyhd (thanks, andyhd!). The game now has sounds, keyboard controls, a built-in REPL (triggered by ESC key) and is very playable.

Installation (no git cloning needed)

Install SBCL (or CCL) and quicklisp as described here)

IMPORTANT - install native sdl libraries! For linux, that means apt-get install

libsdl-dev
libsdl-gfx1.2-dev
libsdl-mixer1.2-dev

Now, in lisp (ql:quickload "asteroids") (asteroids:main)

Quicklisp updates monthly. If you want the newest version, git clone this repo into an asdf-visible directory (see Xach's article). ql:quickload will load the local repo first

Play Instructions

The game plays like original asteroids, except instead of saucers you get powerups. Ram the powerups to pick up super-missiles that go through anything, shields, or to stop time.

Keyboard controls:

Q - quit A - rotate ship left F - rotate ship right J - thrust SPC - fire ESC - REPL

P starts the game in attract mode.

Notes

In retrospect, this was my first attempt at programming in Lisp, by modifying code written by someone who was probably doing the same thing (I think original code was in some other language...). Don't look too closely; I know I won't.

Code has been re-organized and cleaned up. Names have been altered to make it more sensible and bugs fixed. Now loading with quicklisp

ESC now brings you to a REPL. Examine the game state, recompile anything (carefully).

I also added audio using MAME asteroids samples. lispbuilder-sdl-mixer is fragile and very sensitive to being shut down correctly in an interactive environment.

Background music is courtesy http://teknoaxe.com/Home.php.

TODO:

allow remapping of keys
fix pause

2 Systems

The main system appears first, followed by any subsystem dependency.

asteroids

2.1 `asteroids`

An improved asteroids game with sounds

Author

License

Do Whatever The Fuck You Want (DWTFYF)

Dependencies

lispbuilder-sdl (system).
lispbuilder-sdl-gfx (system).
lispbuilder-sdl-mixer (system).

Source

asteroids.asd.

Child Components

package.lisp (file).
asteroids.lisp (file).
sounds/banjo.mp3 (file).
sounds/biding.mp3 (file).
sounds/explode1.wav (file).
sounds/explode2.wav (file).
sounds/explode3.wav (file).
sounds/fire.wav (file).
sounds/haters.mp3 (file).
sounds/life.wav (file).
sounds/lsaucer.wav (file).
sounds/music.mp3 (file).
sounds/phaser.wav (file).
sounds/sfire.wav (file).
sounds/ssaucer.wav (file).
sounds/thrust.wav (file).
sounds/thumphi.wav (file).
sounds/thumplo.wav (file).

3 Files

Files are sorted by type and then listed depth-first from the systems components trees.

Lisp
Static

3.1.1 `asteroids/asteroids.asd`

Source: asteroids.asd.
Parent Component: asteroids (system).
ASDF Systems: asteroids.

3.1.2 `asteroids/package.lisp`

Source: asteroids.asd.
Parent Component: asteroids (system).
Packages: asteroids.

3.1.3 `asteroids/asteroids.lisp`

Dependency

package.lisp (file).

Source

asteroids.asd.

Parent Component

asteroids (system).

Public Interface

initialize-instance (method).
initialize-instance (method).
initialize-instance (method).
initialize-instance (method).
initialize-instance (method).
main (function).

Internals

*explosion-color* (special variable).
*explosion-max-radius* (special variable).
*friction* (special variable).
*is-thrusting* (special variable).
*lr-map* (special variable).
*missile-velocity* (special variable).
*powerup-max-age* (special variable).
*rock-sides* (special variable).
*screen-height* (special variable).
*screen-width* (special variable).
*sound* (special variable).
*thrust-factor* (special variable).
*window* (special variable).
*world* (special variable).
+degrees+ (constant).
acceleration-of (reader method).
(setf acceleration-of) (writer method).
add-freeze (method).
add-score (method).
add-score (method).
add-score (method).
add-shield (method).
add-super-missiles (method).
add-to (method).
add-to (method).
add-to (method).
add-to (method).
apres (function).
asteroids (function).
best-level (reader method).
(setf best-level) (writer method).
break-down (method).
collide (method).
collide (method).
collide (method).
collide (method).
collide (method).
collide (method).
collide (method).
direction-of (reader method).
(setf direction-of) (writer method).
done (method).
explosion (class).
fade (reader method).
(setf fade) (writer method).
frozen-p (method).
handling-errors (macro).
high-score (reader method).
(setf high-score) (writer method).
in-world-p (method).
initialize (method).
intersects-p (method).
key-processor (function).
key-processor-attract (function).
key-processor-game (function).
level (reader method).
(setf level) (writer method).
level-cleared-p (method).
lifetime (reader method).
lifetime (reader method).
lifetime (reader method).
(setf lifetime) (writer method).
(setf lifetime) (writer method).
(setf lifetime) (writer method).
lives (reader method).
(setf lives) (writer method).
make-random-powerup (function).
map-coords (method).
map-radius (method).
missile (class).
mob (class).
mob-rot (class).
mobs (reader method).
(setf mobs) (writer method).
music (reader method).
(setf music) (writer method).
music-finished-action (function).
my-distance (function).
num-of-rocks (reader method).
(setf num-of-rocks) (writer method).
opened (reader method).
(setf opened) (writer method).
paused (reader method).
(setf paused) (writer method).
period (reader method).
(setf period) (writer method).
phasex (reader method).
(setf phasex) (writer method).
play-explode1 (method).
play-explode2 (method).
play-explode3 (method).
play-fire (method).
play-music (method).
play-phaser (method).
play-thrust (method).
play-thrust-stop (method).
play-thump-stop (method).
play-thumphi (method).
play-thumplo (method).
play-ufo1 (method).
play-ufo1-stop (method).
play-ufo2 (method).
play-ufo2-stop (method).
polygon1 (function).
pos-of (reader method).
(setf pos-of) (writer method).
powerup (class).
powerup-active-p (method).
powerup-freeze (class).
powerup-missile (class).
powerup-shield (class).
radial-point-from (function).
radial-points-from (function).
radii (reader method).
(setf radii) (writer method).
radius-of (reader method).
(setf radius-of) (writer method).
remove-from (method).
remove-from (method).
remove-from (method).
remove-from (method).
render (method).
render (method).
render (method).
render (method).
render (method).
render (method).
render (method).
render (method).
render (method).
render-attract (method).
render-world (method).
render-world-game (method).
repl (function).
reset (method).
reset (method).
rock (class).
rotation-of (reader method).
(setf rotation-of) (writer method).
sample (reader method).
(setf sample) (writer method).
sample-finished-action (function).
score (reader method).
(setf score) (writer method).
set-radius (writer method).
set-seconds (method).
ship (reader method).
(setf ship) (writer method).
ship (class).
ship-fire (function).
ship-moved (method).
shoot (method).
shut-down (method).
size-of (reader method).
(setf size-of) (writer method).
sound (class).
start-next-level (method).
stop-music (method).
super-p (reader method).
(setf super-p) (writer method).
target (reader method).
target (reader method).
(setf target) (writer method).
(setf target) (writer method).
thrust (method).
thrust-0 (method).
thumper (reader method).
(setf thumper) (writer method).
thumper (class).
timer (class).
timers (reader method).
timers (reader method).
(setf timers) (writer method).
(setf timers) (writer method).
update (method).
update (method).
update (method).
update (method).
update (method).
update (method).
update (method).
update-thumper (method).
update-world (function).
velocity-of (reader method).
(setf velocity-of) (writer method).
world (class).
x-ship (class).
xy-off-create (function).
xy-off-scale (function).
xy-off-subtract (function).
xy-off-sum (function).

3.2 Static

asteroids/sounds/banjo.mp3
asteroids/sounds/biding.mp3
asteroids/sounds/explode1.wav
asteroids/sounds/explode2.wav
asteroids/sounds/explode3.wav
asteroids/sounds/fire.wav
asteroids/sounds/haters.mp3
asteroids/sounds/life.wav
asteroids/sounds/lsaucer.wav
asteroids/sounds/music.mp3
asteroids/sounds/phaser.wav
asteroids/sounds/sfire.wav
asteroids/sounds/ssaucer.wav
asteroids/sounds/thrust.wav
asteroids/sounds/thumphi.wav
asteroids/sounds/thumplo.wav

3.2.1 `asteroids/sounds/banjo.mp3`

Dependency: asteroids.lisp (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.2 `asteroids/sounds/biding.mp3`

Dependency: sounds/banjo.mp3 (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.3 `asteroids/sounds/explode1.wav`

Dependency: sounds/biding.mp3 (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.4 `asteroids/sounds/explode2.wav`

Dependency: sounds/explode1.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.5 `asteroids/sounds/explode3.wav`

Dependency: sounds/explode2.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.6 `asteroids/sounds/fire.wav`

Dependency: sounds/explode3.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.7 `asteroids/sounds/haters.mp3`

Dependency: sounds/fire.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.8 `asteroids/sounds/life.wav`

Dependency: sounds/haters.mp3 (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.9 `asteroids/sounds/lsaucer.wav`

Dependency: sounds/life.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.10 `asteroids/sounds/music.mp3`

Dependency: sounds/lsaucer.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.11 `asteroids/sounds/phaser.wav`

Dependency: sounds/music.mp3 (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.12 `asteroids/sounds/sfire.wav`

Dependency: sounds/phaser.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.13 `asteroids/sounds/ssaucer.wav`

Dependency: sounds/sfire.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.14 `asteroids/sounds/thrust.wav`

Dependency: sounds/ssaucer.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.15 `asteroids/sounds/thumphi.wav`

Dependency: sounds/thrust.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

3.2.16 `asteroids/sounds/thumplo.wav`

Dependency: sounds/thumphi.wav (file).
Source: asteroids.asd.
Parent Component: asteroids (system).

4 Packages

Packages are listed by definition order.

asteroids

4.1 `asteroids`

Source

package.lisp.

Use List

common-lisp.
lispbuilder-sdl.

Public Interface

main (function).

Internals

*explosion-color* (special variable).
*explosion-max-radius* (special variable).
*friction* (special variable).
*is-thrusting* (special variable).
*lr-map* (special variable).
*missile-velocity* (special variable).
*powerup-max-age* (special variable).
*rock-sides* (special variable).
*screen-height* (special variable).
*screen-width* (special variable).
*sound* (special variable).
*thrust-factor* (special variable).
*window* (special variable).
*world* (special variable).
+degrees+ (constant).
acceleration-of (generic reader).
(setf acceleration-of) (generic writer).
add-freeze (generic function).
add-score (generic function).
add-shield (generic function).
add-super-missiles (generic function).
add-to (generic function).
apres (function).
asteroids (function).
best-level (generic reader).
(setf best-level) (generic writer).
break-down (generic function).
collide (generic function).
direction-of (generic reader).
(setf direction-of) (generic writer).
done (generic function).
explosion (class).
fade (generic reader).
(setf fade) (generic writer).
frozen-p (generic function).
handling-errors (macro).
high-score (generic reader).
(setf high-score) (generic writer).
in-world-p (generic function).
initialize (generic function).
intersects-p (generic function).
key-processor (function).
key-processor-attract (function).
key-processor-game (function).
level (generic reader).
(setf level) (generic writer).
level-cleared-p (generic function).
lifetime (generic reader).
(setf lifetime) (generic writer).
lives (generic reader).
(setf lives) (generic writer).
make-random-powerup (function).
map-coords (generic function).
map-radius (generic function).
missile (class).
mob (class).
mob-rot (class).
mobs (generic reader).
(setf mobs) (generic writer).
music (generic reader).
(setf music) (generic writer).
music-finished-action (function).
my-distance (function).
num-of-rocks (generic reader).
(setf num-of-rocks) (generic writer).
opened (generic reader).
(setf opened) (generic writer).
paused (generic reader).
(setf paused) (generic writer).
period (generic reader).
(setf period) (generic writer).
phasex (generic reader).
(setf phasex) (generic writer).
play-explode1 (generic function).
play-explode2 (generic function).
play-explode3 (generic function).
play-fire (generic function).
play-music (generic function).
play-phaser (generic function).
play-thrust (generic function).
play-thrust-stop (generic function).
play-thump-stop (generic function).
play-thumphi (generic function).
play-thumplo (generic function).
play-ufo1 (generic function).
play-ufo1-stop (generic function).
play-ufo2 (generic function).
play-ufo2-stop (generic function).
polygon1 (function).
pos-of (generic reader).
(setf pos-of) (generic writer).
powerup (class).
powerup-active-p (generic function).
powerup-freeze (class).
powerup-missile (class).
powerup-shield (class).
radial-point-from (function).
radial-points-from (function).
radii (generic reader).
(setf radii) (generic writer).
radius-of (generic reader).
(setf radius-of) (generic writer).
remove-from (generic function).
render (generic function).
render-attract (generic function).
render-world (generic function).
render-world-game (generic function).
repl (function).
reset (generic function).
rock (class).
rotation-of (generic reader).
(setf rotation-of) (generic writer).
sample (generic reader).
(setf sample) (generic writer).
sample-finished-action (function).
score (generic reader).
(setf score) (generic writer).
set-radius (generic writer).
set-seconds (generic function).
ship (generic reader).
(setf ship) (generic writer).
ship (class).
ship-fire (function).
ship-moved (generic function).
shoot (generic function).
shut-down (generic function).
size-of (generic reader).
(setf size-of) (generic writer).
sound (class).
start-next-level (generic function).
stop-music (generic function).
super-p (generic reader).
(setf super-p) (generic writer).
target (generic reader).
(setf target) (generic writer).
thrust (generic function).
thrust-0 (generic function).
thumper (generic reader).
(setf thumper) (generic writer).
thumper (class).
timer (class).
timers (generic reader).
(setf timers) (generic writer).
update (generic function).
update-thumper (generic function).
update-world (function).
velocity-of (generic reader).
(setf velocity-of) (generic writer).
world (class).
x-ship (class).
xy-off-create (function).
xy-off-scale (function).
xy-off-subtract (function).
xy-off-sum (function).

5 Definitions

Definitions are sorted by export status, category, package, and then by lexicographic order.

Public Interface
Internals

5.1 Public Interface

Ordinary functions
Standalone methods

5.1.1 Ordinary functions

Function: main () ¶

Package: asteroids.
Source: asteroids.lisp.

5.1.2 Standalone methods

Method: initialize-instance :after ((ship ship) &key) ¶

Source: asteroids.lisp.

Method: initialize-instance :after ((rock rock) &key) ¶

Source: asteroids.lisp.

Method: initialize-instance :after ((powerup powerup) &key) ¶

Source: asteroids.lisp.

Method: initialize-instance :after ((missile missile) &key) ¶

Source: asteroids.lisp.

Method: initialize-instance :after ((timer timer) &key) ¶

Source: asteroids.lisp.

5.2 Internals

Constants
Special variables
Macros
Ordinary functions
Generic functions
Classes

5.2.1 Constants

Constant: +degrees+ ¶

Package: asteroids.
Source: asteroids.lisp.

5.2.2 Special variables

Special Variable: *explosion-color* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *explosion-max-radius* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *friction* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *is-thrusting* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *lr-map* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *missile-velocity* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *powerup-max-age* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *rock-sides* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *screen-height* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *screen-width* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *sound* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *thrust-factor* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *window* ¶

Package: asteroids.
Source: asteroids.lisp.

Special Variable: *world* ¶

Package: asteroids.
Source: asteroids.lisp.

5.2.3 Macros

Macro: handling-errors (&body body) ¶

Package: asteroids.
Source: asteroids.lisp.

5.2.4 Ordinary functions

Function: apres (world timer-name &key seconds fun) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: asteroids () ¶

Package: asteroids.
Source: asteroids.lisp.

Function: key-processor (world key &key down) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: key-processor-attract (world key &key down) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: key-processor-game (world key &key down) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: make-random-powerup (&key pos velocity) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: music-finished-action () ¶

Package: asteroids.
Source: asteroids.lisp.

Function: my-distance (a b) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: polygon1 (coords radius-of direction) ¶

return a list of vertices (points) suitable for draw-polygon

Package: asteroids.
Source: asteroids.lisp.

Function: radial-point-from (p radius angle) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: radial-points-from (coord radius angles) ¶

return a list of points located along the radius around p, at list of angles

Package: asteroids.
Source: asteroids.lisp.

Function: repl () ¶

Package: asteroids.
Source: asteroids.lisp.

Function: sample-finished-action () ¶

Package: asteroids.
Source: asteroids.lisp.

Function: ship-fire (ship) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: update-world (world) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: xy-off-create (angle-rad magnitude) ¶

Create a ’xy-off’

Package: asteroids.
Source: asteroids.lisp.

Function: xy-off-scale (v factor) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: xy-off-subtract (a b) ¶

Package: asteroids.
Source: asteroids.lisp.

Function: xy-off-sum (a b) ¶

Package: asteroids.
Source: asteroids.lisp.

5.2.5 Generic functions

Generic Reader: acceleration-of (object) ¶

Package

	Index Entry	Section

*
	`explosion-color`:	Private special variables
	`explosion-max-radius`:	Private special variables
	`friction`:	Private special variables
	`is-thrusting`:	Private special variables
	`lr-map`:	Private special variables
	`missile-velocity`:	Private special variables
	`powerup-max-age`:	Private special variables
	`rock-sides`:	Private special variables
	`screen-height`:	Private special variables
	`screen-width`:	Private special variables
	`sound`:	Private special variables
	`thrust-factor`:	Private special variables
	`window`:	Private special variables
	`world`:	Private special variables

+
	`+degrees+`:	Private constants

A
	`acceleration`:	Private classes

B
	`best-level`:	Private classes

C
	`Constant, +degrees+`:	Private constants

D
	`direction`:	Private classes

F
	`fade`:	Private classes

H
	`high-score`:	Private classes

L
	`level`:	Private classes
	`lifetime`:	Private classes
	`lifetime`:	Private classes
	`lifetime`:	Private classes
	`lives`:	Private classes

M
	`mobs`:	Private classes
	`music`:	Private classes

N
	`num-of-rocks`:	Private classes

O
	`opened`:	Private classes

P
	`paused`:	Private classes
	`period`:	Private classes
	`phasex`:	Private classes
	`pos`:	Private classes

R
	`radii`:	Private classes
	`radius`:	Private classes
	`rotation`:	Private classes

S
	`sample`:	Private classes
	`score`:	Private classes
	`ship`:	Private classes
	`size`:	Private classes
	`Slot, acceleration`:	Private classes
	`Slot, best-level`:	Private classes
	`Slot, direction`:	Private classes
	`Slot, fade`:	Private classes
	`Slot, high-score`:	Private classes
	`Slot, level`:	Private classes
	`Slot, lifetime`:	Private classes
	`Slot, lifetime`:	Private classes
	`Slot, lifetime`:	Private classes
	`Slot, lives`:	Private classes
	`Slot, mobs`:	Private classes
	`Slot, music`:	Private classes
	`Slot, num-of-rocks`:	Private classes
	`Slot, opened`:	Private classes
	`Slot, paused`:	Private classes
	`Slot, period`:	Private classes
	`Slot, phasex`:	Private classes
	`Slot, pos`:	Private classes
	`Slot, radii`:	Private classes
	`Slot, radius`:	Private classes
	`Slot, rotation`:	Private classes
	`Slot, sample`:	Private classes
	`Slot, score`:	Private classes
	`Slot, ship`:	Private classes
	`Slot, size`:	Private classes
	`Slot, super`:	Private classes
	`Slot, target`:	Private classes
	`Slot, target`:	Private classes
	`Slot, thumper`:	Private classes
	`Slot, timers`:	Private classes
	`Slot, timers`:	Private classes
	`Slot, velocity`:	Private classes
	`Special Variable, explosion-color`:	Private special variables
	`Special Variable, explosion-max-radius`:	Private special variables
	`Special Variable, friction`:	Private special variables
	`Special Variable, is-thrusting`:	Private special variables
	`Special Variable, lr-map`:	Private special variables
	`Special Variable, missile-velocity`:	Private special variables
	`Special Variable, powerup-max-age`:	Private special variables
	`Special Variable, rock-sides`:	Private special variables
	`Special Variable, screen-height`:	Private special variables
	`Special Variable, screen-width`:	Private special variables
	`Special Variable, sound`:	Private special variables
	`Special Variable, thrust-factor`:	Private special variables
	`Special Variable, window`:	Private special variables
	`Special Variable, world`:	Private special variables
	`super`:	Private classes

T
	`target`:	Private classes
	`target`:	Private classes
	`thumper`:	Private classes
	`timers`:	Private classes
	`timers`:	Private classes

V
	`velocity`:	Private classes

	Index Entry	Section

A
	`asteroids`:	The asteroids system
	`asteroids`:	The asteroids package
	`asteroids.asd`:	The asteroids/asteroids․asd file
	`asteroids.lisp`:	The asteroids/asteroids․lisp file

C
	`Class, explosion`:	Private classes
	`Class, missile`:	Private classes
	`Class, mob`:	Private classes
	`Class, mob-rot`:	Private classes
	`Class, powerup`:	Private classes
	`Class, powerup-freeze`:	Private classes
	`Class, powerup-missile`:	Private classes
	`Class, powerup-shield`:	Private classes
	`Class, rock`:	Private classes
	`Class, ship`:	Private classes
	`Class, sound`:	Private classes
	`Class, thumper`:	Private classes
	`Class, timer`:	Private classes
	`Class, world`:	Private classes
	`Class, x-ship`:	Private classes

E
	`explosion`:	Private classes

F
	`File, asteroids.asd`:	The asteroids/asteroids․asd file
	`File, asteroids.lisp`:	The asteroids/asteroids․lisp file
	`File, package.lisp`:	The asteroids/package․lisp file
	`File, sounds/banjo.mp3`:	The asteroids/sounds/banjo․mp3 file
	`File, sounds/biding.mp3`:	The asteroids/sounds/biding․mp3 file
	`File, sounds/explode1.wav`:	The asteroids/sounds/explode1․wav file
	`File, sounds/explode2.wav`:	The asteroids/sounds/explode2․wav file
	`File, sounds/explode3.wav`:	The asteroids/sounds/explode3․wav file
	`File, sounds/fire.wav`:	The asteroids/sounds/fire․wav file
	`File, sounds/haters.mp3`:	The asteroids/sounds/haters․mp3 file
	`File, sounds/life.wav`:	The asteroids/sounds/life․wav file
	`File, sounds/lsaucer.wav`:	The asteroids/sounds/lsaucer․wav file
	`File, sounds/music.mp3`:	The asteroids/sounds/music․mp3 file
	`File, sounds/phaser.wav`:	The asteroids/sounds/phaser․wav file
	`File, sounds/sfire.wav`:	The asteroids/sounds/sfire․wav file
	`File, sounds/ssaucer.wav`:	The asteroids/sounds/ssaucer․wav file
	`File, sounds/thrust.wav`:	The asteroids/sounds/thrust․wav file
	`File, sounds/thumphi.wav`:	The asteroids/sounds/thumphi․wav file
	`File, sounds/thumplo.wav`:	The asteroids/sounds/thumplo․wav file

M
	`missile`:	Private classes
	`mob`:	Private classes
	`mob-rot`:	Private classes

P
	`Package, asteroids`:	The asteroids package
	`package.lisp`:	The asteroids/package․lisp file
	`powerup`:	Private classes
	`powerup-freeze`:	Private classes
	`powerup-missile`:	Private classes
	`powerup-shield`:	Private classes

R
	`rock`:	Private classes

S
	`ship`:	Private classes
	`sound`:	Private classes
	`sounds/banjo.mp3`:	The asteroids/sounds/banjo․mp3 file
	`sounds/biding.mp3`:	The asteroids/sounds/biding․mp3 file
	`sounds/explode1.wav`:	The asteroids/sounds/explode1․wav file
	`sounds/explode2.wav`:	The asteroids/sounds/explode2․wav file
	`sounds/explode3.wav`:	The asteroids/sounds/explode3․wav file
	`sounds/fire.wav`:	The asteroids/sounds/fire․wav file
	`sounds/haters.mp3`:	The asteroids/sounds/haters․mp3 file
	`sounds/life.wav`:	The asteroids/sounds/life․wav file
	`sounds/lsaucer.wav`:	The asteroids/sounds/lsaucer․wav file
	`sounds/music.mp3`:	The asteroids/sounds/music․mp3 file
	`sounds/phaser.wav`:	The asteroids/sounds/phaser․wav file
	`sounds/sfire.wav`:	The asteroids/sounds/sfire․wav file
	`sounds/ssaucer.wav`:	The asteroids/sounds/ssaucer․wav file
	`sounds/thrust.wav`:	The asteroids/sounds/thrust․wav file
	`sounds/thumphi.wav`:	The asteroids/sounds/thumphi․wav file
	`sounds/thumplo.wav`:	The asteroids/sounds/thumplo․wav file
	`System, asteroids`:	The asteroids system

T
	`thumper`:	Private classes
	`timer`:	Private classes

W
	`world`:	Private classes

X
	`x-ship`:	Private classes

The asteroids Reference Manual

The asteroids Reference Manual

Table of Contents

1 Introduction

asteroids

Installation (no git cloning needed)

Play Instructions

Notes

TODO:

2 Systems

2.1 asteroids

3 Files

3.1 Lisp

3.1.1 asteroids/asteroids.asd

3.1.2 asteroids/package.lisp

3.1.3 asteroids/asteroids.lisp

3.2 Static

3.2.1 asteroids/sounds/banjo.mp3

3.2.2 asteroids/sounds/biding.mp3

3.2.3 asteroids/sounds/explode1.wav

3.2.4 asteroids/sounds/explode2.wav

3.2.5 asteroids/sounds/explode3.wav

3.2.6 asteroids/sounds/fire.wav

3.2.7 asteroids/sounds/haters.mp3

3.2.8 asteroids/sounds/life.wav

3.2.9 asteroids/sounds/lsaucer.wav

3.2.10 asteroids/sounds/music.mp3

3.2.11 asteroids/sounds/phaser.wav

3.2.12 asteroids/sounds/sfire.wav

3.2.13 asteroids/sounds/ssaucer.wav

3.2.14 asteroids/sounds/thrust.wav

3.2.15 asteroids/sounds/thumphi.wav

3.2.16 asteroids/sounds/thumplo.wav

4 Packages

4.1 asteroids

5 Definitions

5.1 Public Interface

5.1.1 Ordinary functions

5.1.2 Standalone methods

5.2 Internals

5.2.1 Constants

5.2.2 Special variables

5.2.3 Macros

5.2.4 Ordinary functions

5.2.5 Generic functions

5.2.6 Classes

Appendix A Indexes

A.1 Concepts

A.2 Functions

A.3 Variables

A.4 Data types

2.1 `asteroids`

3.1.1 `asteroids/asteroids.asd`

3.1.2 `asteroids/package.lisp`

3.1.3 `asteroids/asteroids.lisp`

3.2.1 `asteroids/sounds/banjo.mp3`

3.2.2 `asteroids/sounds/biding.mp3`

3.2.3 `asteroids/sounds/explode1.wav`

3.2.4 `asteroids/sounds/explode2.wav`

3.2.5 `asteroids/sounds/explode3.wav`

3.2.6 `asteroids/sounds/fire.wav`

3.2.7 `asteroids/sounds/haters.mp3`

3.2.8 `asteroids/sounds/life.wav`

3.2.9 `asteroids/sounds/lsaucer.wav`

3.2.10 `asteroids/sounds/music.mp3`

3.2.11 `asteroids/sounds/phaser.wav`

3.2.12 `asteroids/sounds/sfire.wav`

3.2.13 `asteroids/sounds/ssaucer.wav`

3.2.14 `asteroids/sounds/thrust.wav`

3.2.15 `asteroids/sounds/thumphi.wav`

3.2.16 `asteroids/sounds/thumplo.wav`

4.1 `asteroids`