BIS fnc dirTo: Difference between revisions
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Lou Montana (talk | contribs) m (Text replacement - " \| *(\[[^ ]+\] (call|spawn) ('''|\[\[)BI(N|S)_fnc_[a-zA-Z0-9_]+('''|\]\]));? \| *p1 *=" to " |s1=$1 |p1=") |
Lou Montana (talk | contribs) m (Text replacement - "'''(BI(N|S)_fnc_[a-zA-Z0-9_]+)'''" to "$1") |
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|gr1= Geometry | |gr1= Geometry | ||
| Function which returns vector direction from pos1 to pos2. {{Feature|arma3|In Arma 3 use {{ic|obj1 [[getDir]] obj2}} instead of | | Function which returns vector direction from pos1 to pos2. {{Feature|arma3|In Arma 3 use {{ic|obj1 [[getDir]] obj2}} instead of [[BIS_fnc_dirTo]]!}} | ||
|s1=[param1, param2] call [[BIS_fnc_dirTo]] | |s1=[param1, param2] call [[BIS_fnc_dirTo]] | ||
| Line 44: | Line 44: | ||
Be careful when using this function in conjunction with [[BIS_fnc_rotateVector2D]], which rotates vectors counterclockwise as per trigonometric conventions, while [[BIS_fnc_dirTo]] returns a clockwise angle. | Be careful when using this function in conjunction with [[BIS_fnc_rotateVector2D]], which rotates vectors counterclockwise as per trigonometric conventions, while [[BIS_fnc_dirTo]] returns a clockwise angle. | ||
<br> | <br> | ||
To counter this, simply negate the output of | To counter this, simply negate the output of [[BIS_fnc_dirTo]]: | ||
<code>[<nowiki>[0,1,0]</nowiki>, '''-('''[_unit, _vehicle] [[call]] [[BIS_fnc_dirTo]]''')'''] [[call]] [[BIS_fnc_rotateVector2D]];</code> | <code>[<nowiki>[0,1,0]</nowiki>, '''-('''[_unit, _vehicle] [[call]] [[BIS_fnc_dirTo]]''')'''] [[call]] [[BIS_fnc_rotateVector2D]];</code> | ||
</dd> | </dd> | ||
</dl> | </dl> | ||
Revision as of 20:26, 12 June 2021
Description
- Description:
- Description needed
- Execution:
- call
- Groups:
- Geometry
Syntax
- Syntax:
- [param1, param2] call BIS_fnc_dirTo
- Parameters:
- param1 - vector starting point, Position or Object
- param1 - vector ending point, Position or Object
- Return Value:
- Number
Examples
Additional Information
Notes
-
Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note
- Posted on January 21, 2015 - 14:20 (UTC)
- AgentRev
-
Be careful when using this function in conjunction with BIS_fnc_rotateVector2D, which rotates vectors counterclockwise as per trigonometric conventions, while BIS_fnc_dirTo returns a clockwise angle.
To counter this, simply negate the output of BIS_fnc_dirTo:[[0,1,0], -([_unit, _vehicle] call BIS_fnc_dirTo)] call BIS_fnc_rotateVector2D;