Mercurial > sdl-ios-xcode
view docs/html/guidetimeexamples.html @ 930:02759105b989
Date: Fri, 20 Aug 2004 08:31:20 +0200
From: "Markus F.X.J. Oberhumer"
Subject: [SDL-CVS][patch] add missing SDLCALL to headers
the small patch attached below (against current CVS) adds some missing SDLCALL
decorations to callback types and arguments.
Unfortunately one of these changes breaks your gen{def,exp}.pl scripts which
should be changed to use non-greedy regular expression matching...
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 20 Aug 2004 18:57:01 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >Time Examples</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Examples" HREF="guideexamples.html"><LINK REL="PREVIOUS" TITLE="CDROM Examples" HREF="guidecdromexamples.html"><LINK REL="NEXT" TITLE="SDL Reference" HREF="reference.html"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="guidecdromexamples.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 4. Examples</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="reference.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="GUIDETIMEEXAMPLES" ></A >Time Examples</H1 ><P ></P ><DIV CLASS="SECT2" ><H2 CLASS="SECT2" ><A NAME="AEN412" ></A >Time based game loop</H2 ><P ><PRE CLASS="PROGRAMLISTING" >#define TICK_INTERVAL 30 static Uint32 next_time; Uint32 time_left(void) { Uint32 now; now = SDL_GetTicks(); if(next_time <= now) return 0; else return next_time - now; } /* main game loop */ next_time = SDL_GetTicks() + TICK_INTERVAL; while ( game_running ) { update_game_state(); SDL_Delay(time_left()); next_time += TICK_INTERVAL; } </PRE ></P ></DIV ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="guidecdromexamples.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="reference.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >CDROM Examples</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="guideexamples.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL Reference</TD ></TR ></TABLE ></DIV ></BODY ></HTML >