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	'''INT[9]''' timer		'''INT[9]''' timer
-	'''Timer''' is a [[global variable]], holding ten integers. Each frame a certain value is added to all of them. This value is the time it took to build the last frame, in 1/100 seconds.	+	'''Timer''' is a [[global variable]], holding ten integers. Each [[frame]] a certain value is added to all of them. This value is the difference in time between the start of the last frame and the current frame, in 1/100 seconds.
-	So when all the timers are never altered, their values will be about 1234 when the program has been running for 12.34 seconds.	+	So when all the timers are never altered, their values will be 1234 when the program has been running for about 12.34 seconds.
	== Example ==		== Example ==
-	Display how long the program has been running:	+	* Display how long the program has been running:
	<pre>		<pre>
	Program timers;		Program timers;
-	Private
-	int ft; // Help variable
-	int i; // how long the program has been running in 1/100s
-	float f; // how long the program has been running in 1/100s
	Begin		Begin
-	set_mode(320,400,8);	+	write_int(0,0,100,0,&timer[0]);
-	write_int (0,0,300,0,&timer);	+
-	write_int (0,0,310,0,&i);	+
-	write_float (0,0,320,0,&f);	+
	Repeat		Repeat
-
-	// Calculate how long the program has been running in 1/100s without a float
-	ft %= 10; // keep the milliseconds from last time
-	ft += frame_time*1000; // add the last passed time to it in milliseconds
-	i += ft/10; // add it to the integer without the milliseconds
-
-	// Calculate how long the program has been running in 1/100s with a float
-	f+=frame_time*100;
-
	frame;		frame;
	Until(key(_ESC))		Until(key(_ESC))
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	End		End
	</pre>		</pre>
-	Used in example: [[set_mode]](), [[write_int]](), [[write_float]](), [[key]](), [[frame_time]]	+	Used in example: [[write_int]](), [[key]](),
		+	This can be done more accurately with the use of [[frame_time]].
-	Let a [[process]] wait for a certain time by calling this function:	+	* Let a [[process]] wait for a certain time by calling this function:
	<pre>		<pre>
	Function int wait(int t)		Function int wait(int t)

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Revision as of 00:18, 21 January 2008

Up to Global Variables

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Definition

INT[9] timer

Timer is a global variable, holding ten integers. Each frame a certain value is added to all of them. This value is the difference in time between the start of the last frame and the current frame, in 1/100 seconds.

So when all the timers are never altered, their values will be 1234 when the program has been running for about 12.34 seconds.

Example

• Display how long the program has been running:

Program timers;
Begin

    write_int(0,0,100,0,&timer[0]);

    Repeat
        frame;
    Until(key(_ESC))

End

Used in example: write_int(), key(), This can be done more accurately with the use of frame_time.

• Let a process wait for a certain time by calling this function:

Function int wait(int t)
Begin
    t += timer[0];
    While(timer[0]<t) frame; End
    return t-timer[0];
End

This can be done without a timer too, as is displayed here.

Global variables

• Argc • Argv • Cdinfo • Dump_type • Fading • Fileinfo • Fps • Frame_time • Full_screen • Graph_mode • Mouse • Os_id • Restore_type • Scale_mode • Scroll • Sound_channels • Sound_freq • Sound_mode • Text_flags • Text_z • Timer •