This wiki is out of date, use the continuation of this wiki instead

From FenixWiki

Revision as of 21:04, 25 June 2007 (edit) 87.177.23.239 (Talk) ← Previous diff		Revision as of 21:00, 19 August 2007 (edit) (undo) Sandman (Talk | contribs) Next diff →
Line 1:		Line 1:
	[[Category:language]]		[[Category:language]]
-	=== Definition ===	+
-	----	+	== Definition ==
	The '''frame;''' command tells the interpreter when a [[process]] is done for one game cycle.		The '''frame;''' command tells the interpreter when a [[process]] is done for one game cycle.
	When the '''frame;''' is reached, the screen is updated.		When the '''frame;''' is reached, the screen is updated.
-	If there are several [[process]]es running, the screen is updated once every [[process]] has reached it`s	+	If there are several [[process]]es running, the screen is updated once every [[process]] has reached its '''frame;''' statement.
-	'''frame;''' statement.	+
-	It is commonly used in [[loop]]s of [[process]]es that should do something like moving around by a certain	+	It is commonly used in [[loop]]s of [[process]]es that should do something like moving around by a certain amount of pixels per game cycle (or per frame).
-	amount of pixels per game cycle (or per frame).	+
-	=== Example ===	+	A possibility is to adjust the amount of cycles to wait. '''frame(100);''' would wait one cycle (100%), same as '''frame;'''. However '''frame(200);''' will wait two cycles (200% means the frame statement provides for 200% frame). So '''frame(50);''' will wait a half cycle or otherwise said, it will make a loop run twice per frame.
-	----	+
		+	== Example ==
	<pre>		<pre>
-	process square()	+	Begin
-	begin	+	square();
-	graph = new_map(5,5,16);	+	Loop
-	map_clear(0,graph,rgb(255,255,255));	+	frame;
		+	End
		+	End
		+
		+	Process square()
		+	Begin
		+
		+	graph = new_map(5,5,16);
		+	map_clear(0,graph,rgb(255,255,255));
-	loop	+	Loop
-	if(key(_left))x-=2;end;	+	x += 2 * (key(_right)-key(_left));
-	if(key(_right))x+=2;end;	+	frame; //<-vital part
		+	End
-	frame; //<-vital part	+	End
-	end;	+
-	end;	+
	</pre>		</pre>
	This example [[process]] would give you a square you can move around the screen by 2 pixel before it		This example [[process]] would give you a square you can move around the screen by 2 pixel before it
	gets showed again, before the game cycle is over, before the '''frame;''' happens.		gets showed again, before the game cycle is over, before the '''frame;''' happens.
-	If there would be no '''frame;''' in the [[loop]], it would just run and run and the interpreter would wait	+	If there would be no '''frame;''' in the [[loop]], it would just run forever and the interpreter would wait forever and wait for the '''frame;''' which would result in freezing.
-	and wait and wait for the '''frame;''' which would just result in freezing.	+

---

Revision as of 21:00, 19 August 2007

Definition

The frame; command tells the interpreter when a process is done for one game cycle. When the frame; is reached, the screen is updated. If there are several processes running, the screen is updated once every process has reached its frame; statement.

It is commonly used in loops of processes that should do something like moving around by a certain amount of pixels per game cycle (or per frame).

A possibility is to adjust the amount of cycles to wait. frame(100); would wait one cycle (100%), same as frame;. However frame(200); will wait two cycles (200% means the frame statement provides for 200% frame). So frame(50); will wait a half cycle or otherwise said, it will make a loop run twice per frame.

Example

Begin
    square();
    Loop
        frame;
    End
End

Process square()
Begin

    graph = new_map(5,5,16);
    map_clear(0,graph,rgb(255,255,255));

    Loop
        x += 2 * (key(_right)-key(_left));
        frame; //<-vital part
    End

End

This example process would give you a square you can move around the screen by 2 pixel before it gets showed again, before the game cycle is over, before the frame; happens. If there would be no frame; in the loop, it would just run forever and the interpreter would wait forever and wait for the frame; which would result in freezing.