# WC3 JASS.com"The Jass Vault" plus vJASS and Zinc

### [Snippet] GetWidgetMeasures

moyack · 10576

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##### [Snippet] GetWidgetMeasures
on: October 01, 2012, 09:31:36 PM
Category: Geometry, Units
Language: vJASS

## Related Topics or Resources

Description

This library provides a set of functions to get distance and angles between widgets (units, destructibles, items). Here you can get any of these measures no matter the type of the widget, like measuring the distance between unit-unit, unit-destructable, unit-item, item-unit, etc.

Requirements

- Geometry Lib Base

Actual Code

Code: jass
1. /******************************************************************
2. *                     GEOMETRY MEASURES V1.1                      *
3. *                           By moyack                             *
4. *                              2012                               *
5. *              ===================================                *
6. *              Exclusive resource from wc3jass.com                *
7. *              ===================================                *
8. ******************************************************************/
9.
10. library GetWidgetMeasures requires GeometryLibBase
11. /*This is the first of a set of libraries focused in the usage of
12. proper geometry functions.
13.
14. Here we'll aim to make the code as modular as possible so we can
15. reduce the code amount in map but offering the neccesary tools
16. for modders
17.
18. Here we offer some basic functions realated to widgets (units,
19. destructables and items):
20.
21. GetWidgetsDistance: allows to calculate the distance between 2 widgets.
22.                     Here you can have any combination: unit-unit, unit-
23.                     destructable, item unit, etc.
24.
25. GetWidgetsAngle: Gets the angle between 2 widgets. Like the previus
26.                  function, it allows to compare between units, unit-item,
27.                  unit-destructable, etc.
28.
29. GetUnitsDistanceZ: Get the distance between 2 units, taking into account
30.                    their respectives locations and flyheights.
31.
32. GetUnitsZAngle: Returns the elevation angle between unit a and unit b.
33.
34. IMPORTANT NOTE: GetWidgetsAngle and GetUnitsZAngle returns angles in RADIANS.
35. */
36. function GetWidgetsDistance takes widget a, widget b returns real
37.     return GetDistance(GetWidgetX(a), GetWidgetY(a), GetWidgetX(b), GetWidgetY(b))
38. endfunction
39.
40. function GetWidgetsAngle takes widget a, widget b returns real
41.     return Atan3(GetWidgetX(a), GetWidgetY(a), GetWidgetX(b), GetWidgetY(b))
42. endfunction
43.
44. function GetUnitsDistanceZ takes unit a, unit b returns real
45.     local real z = GetUnitZ(b) - GetUnitZ(a)
46.     local real d = GetWidgetsDistance(a, b)
47.     return SquareRoot(d * d + z * z)
48. endfunction
49.
50. function GetUnitsZAngle takes unit a, unit b returns real
51.     return Acos(GetWidgetsDistance(a, b) / GetUnitsDistanceZ(a, b))
52. endfunction
53.
54. endlibrary

Changelog:
v1.0: Initial release
v1.1: Added new functions that match with the library dependencies
« Last Edit: December 19, 2017, 07:44:42 PM by moyack »

##### Re: GetWidgetMeasures
Reply #1 on: October 11, 2012, 09:17:09 PM

Snippet updated. Please check first post.

##### Re: GetWidgetMeasures
Reply #2 on: December 11, 2012, 12:53:51 AM

BUMP of glory!!!

##### Re: [snippet] GetWidgetMeasures
Reply #3 on: December 12, 2012, 09:48:09 AM

This is a nice utility.
Approved.

##### Re: [Snippet] GetWidgetMeasures
Reply #4 on: December 12, 2012, 10:07:43 AM

Thanks man!!!