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Update fn_inAngleSector.sqf

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Made by @Victor-the-Cleaner
This commit is contained in:
A Man
2022-05-16 09:25:05 +02:00
parent 685b59a2f0
commit 989e918821
1 changed files with 28 additions and 35 deletions
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63
SQF/dayz_code/compile/fn_inAngleSector.sqf
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@@ -1,37 +1,30 @@
//------------------
// Authors: Peter Morrison (snYpir) & Philipp Pilhofer (raedor)
// Purpose: Checks if a position lies within an angle sector
// Arguments: [<center position>,<center angle of sector>,<sector width>,<position>]
// Return: boolean
///////////////////////////////////////////////////////////////////////////////////////////////////
//
/*
Returns true if <position> lies within the sector defined by <center position>,
<center angle of sector> and <sector width>. Use this function to determine if
a position lies within a certain angle from another position (ie the <center position>).
Example:
[position player,getdir player,30,position enemy_tank] call BIS_fnc_inAngleSector
will return true if the vehicle named enemy_tank is within 30 degrees of where the player is pointing.
*/
// Revision History:
// 09/01/08 0.1 - First cut VBS2
//------------------
private["_small","_large","_xpos","_ypos","_dir2","_dir3"];
// Purpose: Checks if a position lies within an angle sector
// Arguments: [<center position>, <center angle of sector>, <sector width>, <position>]
// Return: boolean
//
// Returns true if <position> lies within the sector defined by <center position>,
// <center angle of sector> and <sector width>.
//
// Example:
// [position player, getDir player, 30, position enemy_tank] call BIS_fnc_inAngleSector
// will return true if the vehicle named enemy_tank is within 30 degrees of where the player is pointing.
//
///////////////////////////////////////////////////////////////////////////////////////////////////
//
// Optimized for 1.0.7.1
//
// Transpose the rightmost radial arm to 0 degrees and calculate target direction
// using CCW trig convention. Keep sector width to < 180 degrees when calling this function.
//
///////////////////////////////////////////////////////////////////////////////////////////////////
local _source = _this select 0; // center position
local _width = _this select 2; // sector width
local _target = _this select 3; // target position
local _px = (_target select 0) - (_source select 0); // x relative
local _py = (_target select 1) - (_source select 1); // y relative
local _dir = -(_px atan2 _py) + 360; // get CCW relative angle from x,y coords
local _relDir = (_dir + (_this select 1) + (_width * 0.5)) % 360; // transpose target direction by source direction plus half angle sector
_r = false;
_small = (_this select 1) - ((_this select 2) / 2);
_large = (_this select 1) + ((_this select 2) / 2);
_xpos = ((_this select 3) select 0) - ((_this select 0) select 0);
_ypos = ((_this select 3) select 1) - ((_this select 0) select 1);
_dir1 = _xpos atan2 _ypos;
if (_dir1 < 0) then {_dir1 = _dir1 + 360};
_dir2 = _dir1 - 360;
_dir3 = _dir1 + 360;
if ((_dir1 >= _small && _dir1 <= _large) || (_dir2 >= _small && _dir2 <= _large) || (_dir3 >= _small && _dir3 <= _large)) then {_r = true};
_r
_relDir <= _width // is target in angle sector?