Fget dist - Revision history

Sandman at 15:09, 1 March 2008

Sandman — Sat, 01 Mar 2008 15:09:45 GMT

←Older revision		Revision as of 15:09, 1 March 2008
Line 77:		Line 77:
	Resolution is 100:		Resolution is 100:
	{\|		{\|
-	\| ~~http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/~~get_angle.~~PNG \|\| VS \|\| http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/fget_angle.PNG~~	+	\| {{Image
-	\|-	+	\| image = get_angle.png
-	\| [[get_angle]]() and [[get_dist]]() ~~with a [[process]]~~ \|\| \|\| [[fget_angle]]() and [[fget_dist]]()	+	\| caption = [[get_angle]]() and [[get_dist]]()
		+	}}
		+	\|\| VS \|\| {{Image
		+	\| image = fget_angle.png
		+	\| caption = [[fget_angle]]() and [[fget_dist]]()
		+	}}
	\|}		\|}
		+
		+	{{Funcbox
		+	\| category = Math
		+	}}

Sandman at 12:05, 11 July 2007

Sandman — Wed, 11 Jul 2007 12:05:52 GMT

←Older revision		Revision as of 12:05, 11 July 2007
Line 20:		Line 20:
	== Returns ==		== Returns ==
	'''INT''' : The distance between point A and point B.		'''INT''' : The distance between point A and point B.
		+
		+	== Example ==
		+	<pre>
		+	Program angling;
		+	Const
		+	screen_width = 320;
		+	screen_height = 200;
		+	screen_depth = 8;
		+	screen_fps = 60;
		+	screen_frameskip = 0;
		+	Global
		+	int distance;
		+	int tempID;
		+	Begin
		+
		+	// Set the screen mode
		+	set_mode(screen_width,screen_height,screen_depth);
		+	set_fps(screen_fps,screen_frameskip);
		+
		+	// Change this to see what happens
		+	resolution = 100;
		+
		+	// Create mouse graph, assign to mouse.graph
		+	mouse.graph = new_map(20,20,screen_depth);
		+	map_clear(0,mouse.graph,rgb(255,0,0));
		+
		+	// Create arrow, assign to graph
		+	graph = new_map(30,30,screen_depth);
		+	drawing_map(0,graph);
		+	drawing_color(rgb(0,255,0));
		+	draw_line( 0,29,29,30/2);
		+	draw_line( 0, 0,30,30/2);
		+
		+	// Set position
		+	x = screen_width /2 * resolution;
		+	y = screen_height/2 * resolution;
		+
		+	// Display distance
		+	write(0,0,0,0,"Distance:");
		+	write_int(0,60,0,0,&distance);
		+
		+	// Always point to the mouse
		+	Repeat
		+	// Get the angle and distance between this process' coordinates and those of the mouse.
		+	angle = fget_angle(x,y,mouse.xresolution,mouse.yresolution);
		+	distance = fget_dist (x,y,mouse.xresolution,mouse.yresolution);
		+	frame;
		+	Until(key(_esc))
		+
		+	End
		+	</pre>
		+	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[fget_angle]](), [[fget_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]]
		+
		+	This example could also be done with [[get_dist]](), but that would be more work. It also gives a much less accurate distance when the [[resolution]] is >1.
		+
		+	Resolution is 100:
		+	{\|
		+	\| http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/get_angle.PNG \|\| VS \|\| http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/fget_angle.PNG
		+	\|-
		+	\| [[get_angle]]() and [[get_dist]]() with a [[process]] \|\| \|\| [[fget_angle]]() and [[fget_dist]]()
		+	\|}

Sandman: /* Returns */

Sandman — Mon, 09 Jul 2007 00:08:35 GMT

Returns

←Older revision		Revision as of 00:08, 9 July 2007
Line 19:		Line 19:

	== Returns ==		== Returns ==
-	'''INT''' : The distance between point A and B.	+	'''INT''' : The distance between point A and point B.

Sandman at 00:06, 9 July 2007

Sandman — Mon, 09 Jul 2007 00:06:16 GMT

New page

[[Category:functions]]
[[Category:math]]

==Definition==
'''INT''' fget_dist ( <'''INT''' pointA-X> , <'''INT''' pointA-Y> , <'''INT''' pointB-X> , <'''INT''' pointB-Y> )

Returns the distance between two certain points.

== Parameters ==
{|
| '''INT''' pointA-X || - The X-coordinate of point A.
|-
| '''INT''' pointA-Y || - The Y-coordinate of point A.
|-
| '''INT''' pointB-X || - The X-coordinate of point B.
|-
| '''INT''' pointB-Y || - The Y-coordinate of point B.
|}

== Returns ==
'''INT''' : The distance between point A and B.