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Annotated edit history of rocks(1) version 4, including all changes. View license author blame.
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1 perry 1 XScreenSaver
2 !!!XScreenSaver
3 NAME
4 SYNOPSIS
5 DESCRIPTION
6 OPTIONS
7 ENVIRONMENT
8 SEE ALSO
9 BUGS
10 COPYRIGHT
11 AUTHOR
12 ----
13 !!NAME
14
15
16 rocks - animation of flying through an asteroid field
17 !!SYNOPSIS
18
19
20 __rocks__ [[-display ''host:display.screen'']
21 [[-foreground ''color''] [[-background ''color'']
22 [[-window] [[-root] [[-mono] [[-ncolors ''n''] [[-install]
23 [[-visual ''visual''] [[-count ''integer''] [[-delay
24 ''usecs''] [[-speed ''integer''] [[-norotate] [[-nomove]
25 [[-3d]
26 !!DESCRIPTION
27
28
29 The ''rocks'' program draws an animation of an asteroid
30 field moving past the observer (or vice versa). Sometimes
31 the observer picks up spin on Z axis.
32 !!OPTIONS
33
34
35 ''rocks'' accepts the following options:
36
37
38 __-window__
39
40
41 Draw on a newly-created window. This is the
42 default.
43
44
45 __-root__
46
47
48 Draw on the root window.
49
50
51 __-mono__
52
53
54 Make all the rocks the same color.
55
56
57 __-ncolors colors__
58
59
60 How many different colors to use. Default 5. Colors are
61 chosen randomly.
62
63
64 __-install__
65
66
67 Install a private colormap for the window.
68
69
70 __-visual__ ''visual''
71
72
73 Specify which visual to use. Legal values are the name of a
74 visual class, or the id number (decimal or hex) of a
75 specific visual.
76
77
78 __-count__ ''integer''
79
80
81 Maximum number of rocks to draw on the screen at once.
82 Default 100.
83
84
85 __-speed__ ''integer''
86
87
88 A measure of the speed with which the observer and the rocks
89 pass each other, from 1 to 100. Default 100, meaning ``very
90 fast.'' If you're on a slow display connection (the
91 animation looks jerky) then try making this number smaller,
92 and/or decreasing the number of rocks.
93
94
95 __-delay__ ''microseconds''
96
97
98 Number of microseconds to delay between each frame. Default
99 50000, meaning about 1/20th second. Compare and contrast
100 with ''-speed'', above.
101
102
103 __-norotate__
104
105
106 Don't rotate the observer; just fly through the field on the
107 level.
108
109
110 __-nomove__
111
112
113 Don't turn the observer; just fly straight ahead through the
114 field.
115
116
117 __-3d__
118
119
120 Do red/blue 3d separations: if you look at the screen with
121 3d glasses, the rocks will be ''jumping'' right
122 ''out'' at you. Oooooh, scaaary!
123 !!ENVIRONMENT
124
125
126 __DISPLAY__
127
128
129 to get the default host and display number.
130
131
132 __XENVIRONMENT__
133
134
135 to get the name of a resource file that overrides the global
136 resources stored in the RESOURCE_MANAGER
137 property.
138 !!SEE ALSO
139
140
4 perry 141 X(1), xscreensaver(1)
1 perry 142 !!BUGS
143
144
145 There should be an option to display doppler shift (a
146 gravity rainbow.)
147
148
149 Speed of rotation should be settable.
150
151
152 Default speed of rotation should be relative to forward
153 velocity.
154 !!COPYRIGHT
155
156
157 Copyright 1992 by Jamie Zawinski. Permission to use, copy,
158 modify, distribute, and sell this software and its
159 documentation for any purpose is hereby granted without fee,
160 provided that the above copyright notice appear in all
161 copies and that both that copyright notice and this
162 permission notice appear in supporting documentation. No
163 representations are made about the suitability of this
164 software for any purpose. It is provided
165 !!AUTHOR
166
167
168 Based on Lisp Machine code copyright 1988 John Nguyen
169
170
171 Ported to C and X by Jamie Zawinski
172
173
174 Steering code by Jeremie Petit; 3D code by
175 theiling@coli.uni-sb.de.
176 ----
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