BIS fnc dirTo: Difference between revisions

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{{DISPLAYTITLE:BIS_fnc_dirTo}}{{Function|Comments=
{{DISPLAYTITLE:BIS_fnc_dirTo}}{{Function|Comments=
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| arma2 |Game name=
| arma2 |Game name=
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|gr1 = Geometry |GROUP1=
|gr1 = Geometry |GROUP1=
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| Function which returns vector direction from pos1 to pos2. {{Feature|arma3|In Arma 3 use {{Inline code|obj1 [[getDir]] obj2}} instead of '''BIS_fnc_dirTo'''!}}|DESCRIPTION=
| Function which returns vector direction from pos1 to pos2. {{Feature|arma3|In Arma 3 use {{Inline code|obj1 [[getDir]] obj2}} instead of '''BIS_fnc_dirTo'''!}}|DESCRIPTION=
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| [param1, param2] call '''BIS_fnc_dirTo''' |=
| [param1, param2] call '''BIS_fnc_dirTo''' |=
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|x1= sets unit1 in the direction of unit2
|x1= sets unit1 in the direction of unit2
<code>unit1 [[setDir]] [unit1, unit2] [[call]] BIS_fnc_dirTo</code>|EXAMPLE1=  
<code>unit1 [[setDir]] [unit1, unit2] [[call]] BIS_fnc_dirTo</code>|EXAMPLE1=  
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| [[getDir]], [[setDir]] |SEEALSO=  
| [[getDir]], [[setDir]] |SEEALSO=  


|  |MPBEHAVIOUR=  
|  |MPBEHAVIOUR=  
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}}
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Revision as of 23:15, 16 January 2021

Hover & click on the images for description

Description

Description:
Function which returns vector direction from pos1 to pos2.
Arma 3
In Arma 3 use obj1 getDir obj2 instead of BIS_fnc_dirTo!
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

Example 1:
sets unit1 in the direction of unit2 unit1 setDir [unit1, unit2] call BIS_fnc_dirTo

Additional Information

See also:
getDirsetDir

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


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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;