Mercurial > sdl-ios-xcode
annotate docs/html/guidetimeexamples.html @ 320:66f815c147ed
Date: Thu, 28 Mar 2002 09:20:03 +0200
From: "Mike Gorchak" <mike@malva.ua>
Subject: New QNX patch.
Hi !
1. Removed warning (possible bug) with invalid type, passing to the function
in ph_WarpedMotion.
2. Rewritten handler of Ph_WM_RESIZE message, now works, but buggy (old
handler doesn't work at all).
3. Added stub handler for Ph_WM_MAX (maximize) message.
4. Added more #ifdef HAVE_OPENGL to disable OpenGL stuff when it not needed.
5. Added support for SDL_NOFRAME and SDL_RESIZABLE flags (in OpenGL windows
too).
6. Added cosmetic changes, if no SDL_RESIZABLE flag defined, disable resize
handlers in window border and maximize button at caption.
7. Fixed my bug with invalid arguments count passed to PtCreateWidget call.
8. Fixed some palette problems.
9. Updated README.QNX file.
And I changed testgl.c test application:
10. Added in testgl.c application support for SDL_NOFRAME flag and
option -noframe.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 28 Mar 2002 16:20:10 +0000 (2002-03-28) |
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 > |