Mercurial > sdl-ios-xcode
annotate docs/html/guidetimeexamples.html @ 4215:d83830711a5b SDL-1.2
Fixed bug #615
Scott McCreary 2008-08-21 10:48:14 PDT
This patch adds support for Haiku.
http://ports.haiku-files.org/browser/haikuports/trunk/media-libs/libsdl/SDL-1.2.13-haiku.diff
Haiku is an open-source recreation of BeOS. It has better POSIX compliance
than beOS did, and other improved features, which in some cases causes us to
have to "undo" previous BeOS workarounds.
Here's our port log entry for it, showing the steps to force the changes into
configure and Makefile:
http://ports.haiku-files.org/wiki/media-libs/libsdl/1.2.13/1
Note that this was only tried on 1.2.13 stable so far.
Haiku is using a newer config.guess / config.sub that doesn't yet seem to be in
the released libtool, so we are having to copy it in for now.
http://haiku-files.org/files/optional-packages/
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 21 Sep 2009 09:18:42 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >Time Examples</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 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 | |
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="guidecdromexamples.html" | |
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49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 >Chapter 4. Examples</TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="reference.html" | |
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63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><DIV | |
| 72 CLASS="SECT1" | |
| 73 ><H1 | |
| 74 CLASS="SECT1" | |
| 75 ><A | |
| 76 NAME="GUIDETIMEEXAMPLES" | |
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77 ></A |
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78 >Time Examples</H1 |
| 0 | 79 ><P |
| 80 ></P | |
| 81 ><DIV | |
| 82 CLASS="SECT2" | |
| 83 ><H2 | |
| 84 CLASS="SECT2" | |
| 85 ><A | |
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86 NAME="AEN412" |
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87 ></A |
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88 >Time based game loop</H2 |
| 0 | 89 ><P |
| 90 ><PRE | |
| 91 CLASS="PROGRAMLISTING" | |
| 92 >#define TICK_INTERVAL 30 | |
| 93 | |
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94 static Uint32 next_time; |
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95 |
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96 Uint32 time_left(void) |
| 0 | 97 { |
| 98 Uint32 now; | |
| 99 | |
| 100 now = SDL_GetTicks(); | |
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101 if(next_time <= now) |
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102 return 0; |
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103 else |
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104 return next_time - now; |
| 0 | 105 } |
| 106 | |
| 107 | |
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108 /* main game loop */ |
| 0 | 109 |
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110 next_time = SDL_GetTicks() + TICK_INTERVAL; |
| 0 | 111 while ( game_running ) { |
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112 update_game_state(); |
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113 SDL_Delay(time_left()); |
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114 next_time += TICK_INTERVAL; |
| 0 | 115 } </PRE |
| 116 ></P | |
| 117 ></DIV | |
| 118 ></DIV | |
| 119 ><DIV | |
| 120 CLASS="NAVFOOTER" | |
| 121 ><HR | |
| 122 ALIGN="LEFT" | |
| 123 WIDTH="100%"><TABLE | |
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124 SUMMARY="Footer navigation table" |
| 0 | 125 WIDTH="100%" |
| 126 BORDER="0" | |
| 127 CELLPADDING="0" | |
| 128 CELLSPACING="0" | |
| 129 ><TR | |
| 130 ><TD | |
| 131 WIDTH="33%" | |
| 132 ALIGN="left" | |
| 133 VALIGN="top" | |
| 134 ><A | |
| 135 HREF="guidecdromexamples.html" | |
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136 ACCESSKEY="P" |
| 0 | 137 >Prev</A |
| 138 ></TD | |
| 139 ><TD | |
| 140 WIDTH="34%" | |
| 141 ALIGN="center" | |
| 142 VALIGN="top" | |
| 143 ><A | |
| 144 HREF="index.html" | |
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145 ACCESSKEY="H" |
| 0 | 146 >Home</A |
| 147 ></TD | |
| 148 ><TD | |
| 149 WIDTH="33%" | |
| 150 ALIGN="right" | |
| 151 VALIGN="top" | |
| 152 ><A | |
| 153 HREF="reference.html" | |
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154 ACCESSKEY="N" |
| 0 | 155 >Next</A |
| 156 ></TD | |
| 157 ></TR | |
| 158 ><TR | |
| 159 ><TD | |
| 160 WIDTH="33%" | |
| 161 ALIGN="left" | |
| 162 VALIGN="top" | |
| 163 >CDROM Examples</TD | |
| 164 ><TD | |
| 165 WIDTH="34%" | |
| 166 ALIGN="center" | |
| 167 VALIGN="top" | |
| 168 ><A | |
| 169 HREF="guideexamples.html" | |
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170 ACCESSKEY="U" |
| 0 | 171 >Up</A |
| 172 ></TD | |
| 173 ><TD | |
| 174 WIDTH="33%" | |
| 175 ALIGN="right" | |
| 176 VALIGN="top" | |
| 177 >SDL Reference</TD | |
| 178 ></TR | |
| 179 ></TABLE | |
| 180 ></DIV | |
| 181 ></BODY | |
| 182 ></HTML | |
| 183 > |