Mercurial > sdl-ios-xcode
annotate docs/html/guidetimeexamples.html @ 693:6c119628180d
Date: Sat, 16 Aug 2003 16:22:56 +0300
From: "Mike Gorchak"
Subject: Package building for QNX6
I'm just completed the package description file for QNX6 - qpg, it is like a\
.spec files for Linux. Please place SDL.qpg.in file in the root of the proj\
ect, where .spec file is placed. And sdl12qpg.diff - just adding the SDL.qpg\
.in. The same for the SDL_image. I'm planning to add .qpg files creation for\
all SDL* projects.
As for shared library building for QNX6. It is very hard to improve the exis\
ting libtool code to support QNX shared libraries. Much easyiest is to remov\
e libtool.m4 code from the acinclude.m4 for those persons, who building shar\
ed libraries for QNX6. I'm described all what they need to do with .so under\
QNX6 in the README.QNX file. And 90% of people used the precompiled librari\
es, so I think it is not big problem :)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sat, 23 Aug 2003 23:25:46 +0000 |
parents | e5bc29de3f0a |
children | 355632dca928 |
rev | line source |
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0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >Time Examples</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
55
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64 |
0 | 8 "><LINK |
9 REL="HOME" | |
10 TITLE="SDL Library Documentation" | |
11 HREF="index.html"><LINK | |
12 REL="UP" | |
13 TITLE="Examples" | |
14 HREF="guideexamples.html"><LINK | |
15 REL="PREVIOUS" | |
16 TITLE="CDROM Examples" | |
17 HREF="guidecdromexamples.html"><LINK | |
18 REL="NEXT" | |
19 TITLE="SDL Reference" | |
20 HREF="reference.html"></HEAD | |
21 ><BODY | |
22 CLASS="SECT1" | |
23 BGCOLOR="#FFF8DC" | |
24 TEXT="#000000" | |
25 LINK="#0000ee" | |
26 VLINK="#551a8b" | |
27 ALINK="#ff0000" | |
28 ><DIV | |
29 CLASS="NAVHEADER" | |
30 ><TABLE | |
31 WIDTH="100%" | |
32 BORDER="0" | |
33 CELLPADDING="0" | |
34 CELLSPACING="0" | |
35 ><TR | |
36 ><TH | |
37 COLSPAN="3" | |
38 ALIGN="center" | |
39 >SDL Library Documentation</TH | |
40 ></TR | |
41 ><TR | |
42 ><TD | |
43 WIDTH="10%" | |
44 ALIGN="left" | |
45 VALIGN="bottom" | |
46 ><A | |
47 HREF="guidecdromexamples.html" | |
48 >Prev</A | |
49 ></TD | |
50 ><TD | |
51 WIDTH="80%" | |
52 ALIGN="center" | |
53 VALIGN="bottom" | |
54 >Chapter 4. Examples</TD | |
55 ><TD | |
56 WIDTH="10%" | |
57 ALIGN="right" | |
58 VALIGN="bottom" | |
59 ><A | |
60 HREF="reference.html" | |
61 >Next</A | |
62 ></TD | |
63 ></TR | |
64 ></TABLE | |
65 ><HR | |
66 ALIGN="LEFT" | |
67 WIDTH="100%"></DIV | |
68 ><DIV | |
69 CLASS="SECT1" | |
70 ><H1 | |
71 CLASS="SECT1" | |
72 ><A | |
73 NAME="GUIDETIMEEXAMPLES" | |
74 >Time Examples</A | |
75 ></H1 | |
76 ><P | |
77 ></P | |
78 ><DIV | |
79 CLASS="SECT2" | |
80 ><H2 | |
81 CLASS="SECT2" | |
82 ><A | |
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83 NAME="AEN412" |
0 | 84 >Time based game loop</A |
85 ></H2 | |
86 ><P | |
87 ><PRE | |
88 CLASS="PROGRAMLISTING" | |
89 >#define TICK_INTERVAL 30 | |
90 | |
181
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91 static Uint32 next_time; |
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92 |
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93 Uint32 time_left(void) |
0 | 94 { |
95 Uint32 now; | |
96 | |
97 now = SDL_GetTicks(); | |
181
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98 if(next_time <= now) |
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99 return 0; |
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100 else |
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101 return next_time - now; |
0 | 102 } |
103 | |
104 | |
181
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105 /* main game loop */ |
0 | 106 |
181
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107 next_time = SDL_GetTicks() + TICK_INTERVAL; |
0 | 108 while ( game_running ) { |
181
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109 update_game_state(); |
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110 SDL_Delay(time_left()); |
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111 next_time += TICK_INTERVAL; |
0 | 112 } </PRE |
113 ></P | |
114 ></DIV | |
115 ></DIV | |
116 ><DIV | |
117 CLASS="NAVFOOTER" | |
118 ><HR | |
119 ALIGN="LEFT" | |
120 WIDTH="100%"><TABLE | |
121 WIDTH="100%" | |
122 BORDER="0" | |
123 CELLPADDING="0" | |
124 CELLSPACING="0" | |
125 ><TR | |
126 ><TD | |
127 WIDTH="33%" | |
128 ALIGN="left" | |
129 VALIGN="top" | |
130 ><A | |
131 HREF="guidecdromexamples.html" | |
132 >Prev</A | |
133 ></TD | |
134 ><TD | |
135 WIDTH="34%" | |
136 ALIGN="center" | |
137 VALIGN="top" | |
138 ><A | |
139 HREF="index.html" | |
140 >Home</A | |
141 ></TD | |
142 ><TD | |
143 WIDTH="33%" | |
144 ALIGN="right" | |
145 VALIGN="top" | |
146 ><A | |
147 HREF="reference.html" | |
148 >Next</A | |
149 ></TD | |
150 ></TR | |
151 ><TR | |
152 ><TD | |
153 WIDTH="33%" | |
154 ALIGN="left" | |
155 VALIGN="top" | |
156 >CDROM Examples</TD | |
157 ><TD | |
158 WIDTH="34%" | |
159 ALIGN="center" | |
160 VALIGN="top" | |
161 ><A | |
162 HREF="guideexamples.html" | |
163 >Up</A | |
164 ></TD | |
165 ><TD | |
166 WIDTH="33%" | |
167 ALIGN="right" | |
168 VALIGN="top" | |
169 >SDL Reference</TD | |
170 ></TR | |
171 ></TABLE | |
172 ></DIV | |
173 ></BODY | |
174 ></HTML | |
175 > |