atan2: Difference between revisions

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To get the direction of an object from the player: <br>
_direction = ((getpos object select 0) - (getpos player select 0)) atan2 ((getpos object select 1) - (getpos player select 1)); <br>
_direction will be from -180 to 180 <br>
If positive values are needed then use:<br>
if(_direction < 0) then {_direction = _direction + 360};


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Revision as of 10:00, 18 November 2009

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Description

Description:
ArcTangent of x/y. Used to determine the angle of a vector [x,y]. Result in Degrees.
Groups:
Uncategorised

Syntax

Syntax:
Number = x atan2 y
Parameters:
x: Number
y: Number
Return Value:
Number

Examples

Example 1:
_xy=[5,3]; _degrees= (_xy select 0) atan2 (_xy select 1)
returns 59.0362

Additional Information

See also:
Math Commands

Notes

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Notes

To get the direction of an object from the player:
_direction = ((getpos object select 0) - (getpos player select 0)) atan2 ((getpos object select 1) - (getpos player select 1));
_direction will be from -180 to 180
If positive values are needed then use:
if(_direction < 0) then {_direction = _direction + 360};

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