Get dist - Revision history

Sandman at 11:40, 25 December 2007

Sandman — Tue, 25 Dec 2007 11:40:45 GMT

←Older revision		Revision as of 11:40, 25 December 2007
Line 107:		Line 107:
	\| [[get_angle]]() and [[get_dist]]() with a [[process]] \|\| \|\| [[fget_angle]]() and [[fget_dist]]()		\| [[get_angle]]() and [[get_dist]]() with a [[process]] \|\| \|\| [[fget_angle]]() and [[fget_dist]]()
	\|}		\|}
		+
		+	{{Funcbox
		+	\| category = Processinteraction
		+	}}

Sandman: /* Example */

Sandman — Wed, 11 Jul 2007 12:07:02 GMT

Example

←Older revision		Revision as of 12:07, 11 July 2007
Line 99:		Line 99:
	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[get_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]		Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[get_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]

-	This example could also be done with [[fget_dist]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when resolution is >1.	+	This example could also be done with [[fget_dist]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when the [[resolution]] is >1.

	Resolution is 100:		Resolution is 100:

Sandman: /* Example */

Sandman — Wed, 11 Jul 2007 11:54:47 GMT

Example

←Older revision		Revision as of 11:54, 11 July 2007
Line 41:		Line 41:
	resolution = 100;		resolution = 100;

-	// Create mouse graph and start ~~moisepointer~~	+	// Create mouse graph and start mousepointer
	x = new_map(20,20,screen_depth);		x = new_map(20,20,screen_depth);
	map_clear(0,x,rgb(255,0,0));		map_clear(0,x,rgb(255,0,0));
Line 99:		Line 99:
	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[get_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]		Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[get_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]

-	This example could also be done with [[~~fget_disy~~]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when resolution is >1.	+	This example could also be done with [[fget_dist]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when 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		\| http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/get_angle.PNG \|\| VS \|\| http://wwwhome.cs.utwente.nl/~bergfi/fenix/wiki/fget_angle.PNG

Sandman: /* Example */

Sandman — Wed, 11 Jul 2007 11:53:52 GMT

Example

←Older revision		Revision as of 11:53, 11 July 2007
Line 97:		Line 97:
	End		End
	</pre>		</pre>
-	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]	+	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[get_dist]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]

	This example could also be done with [[fget_disy]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when resolution is >1.		This example could also be done with [[fget_disy]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when resolution is >1.

Sandman: /* Definition */

Sandman — Wed, 11 Jul 2007 11:53:16 GMT

Definition

←Older revision		Revision as of 11:53, 11 July 2007
Line 5:		Line 5:
	'''INT''' get_dist ( <'''INT''' processID> )		'''INT''' get_dist ( <'''INT''' processID> )

-	Returns the distance between the coordinates of a certain [[process]] and the process calling get_dist(). The distance returned is converted to the [[resolution]] of the process calling get_dist().	+	Returns the distance between the coordinates of a certain [[process]] and the process calling [[get_dist]](). The distance returned is converted to the [[resolution]] of the process calling [[get_dist]]().

	== Parameters ==		== Parameters ==

Sandman: /* Example */

Sandman — Wed, 11 Jul 2007 11:52:38 GMT

Example

←Older revision		Revision as of 11:52, 11 July 2007
Line 99:		Line 99:
	Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]		Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]

-	This example could also be done with [[~~fget_angle~~]](), which is easier and doesn't require an extra [[process]].	+	This example could also be done with [[fget_disy]](), which is easier and doesn't require an extra [[process]]. It also give a much more accurate distance when resolution is >1.
		+
		+	{\|
		+	\| 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 at 11:47, 11 July 2007

Sandman — Wed, 11 Jul 2007 11:47:49 GMT

New page

[[Category:functions]]
[[Category:processinteraction]]

==Definition==
'''INT''' get_dist ( <'''INT''' processID> )

Returns the distance between the coordinates of a certain [[process]] and the process calling get_dist(). The distance returned is converted to the [[resolution]] of the process calling get_dist().

== Parameters ==
{|
| '''INT''' processID || - The other [[process]].
|}

== Returns ==
'''INT''' : The wanted distance.
{|
| -1 || - An error occurred: invalid [[process]].
|-
| !-1 || - The wanted distance.
|}

== 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 and start moisepointer
x = new_map(20,20,screen_depth);
map_clear(0,x,rgb(255,0,0));
mousepointer(0,x);

// 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 mousegraph.
// We can use TYPE and get_id() here, because usually there would only be one
// mousepointer and one always.
tempID = get_id(type mousepointer);
angle = get_angle(tempID);
distance = get_dist(tempID);
frame;
Until(key(_esc))

End

/**
* Follows the mouse coordinates. x is always mouse.x and y is always mouse.y
* for processes with priority <1. The graphic of this process will be a certain graphic.
* int file - The fileID of the file where the graphic is located
* int graph - The graphID of the graphic to be used for this process
*/
Process mousepointer(int file,int graph)
Begin
// Set the priority to 1, because we first want to have the correct coordinates of
// the mouse set in this process. Then after that other process can use those coordinates.
priority = 1;
// Obtain father's resolution
resolution = father.resolution;
// Loop
Loop
// Obtain X and Y coordinates of the mouse and adjust for resolution
// (mouse.y and mouse.y have an unchangeable resolution of 1)
x = mouse.x * resolution;
y = mouse.y * resolution;
frame;
End
End
</pre>
Used in example: [[set_mode]](), [[new_map]](), [[map_clear]](), [[drawing_map]](), [[drawing_color]](), [[draw_line]](), [[write]](), [[write_int]](), [[get_id]](), [[get_angle]](), [[resolution]], [[mouse]], [[graph]], [[x]], [[y]], [[angle]], [[priority]]

This example could also be done with [[fget_angle]](), which is easier and doesn't require an extra [[process]].