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39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
//------------------
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// Authors: Peter Morrison (snYpir) & Philipp Pilhofer (raedor)
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// Purpose: Checks if a position lies within an angle sector
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// Arguments: [<center position>,<center angle of sector>,<sector width>,<position>]
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// Return: boolean
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//
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/*
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Returns true if <position> lies within the sector defined by <center position>,
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<center angle of sector> && <sector width>. Use this function to determine if
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a position lies within a certain angle from another position (ie the <center position>).
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Example:
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[position player,getdir player,30,position enemy_tank] call BIS_fnc_inAngleSector
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will return true if the vehicle named enemy_tank is within 30 degrees of where the player is pointing.
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*/
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// Revision History:
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// 09/01/08 0.1 - First cut VBS2
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//------------------
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private["_dir1","_dir2","_dir3","_small","_large","_x","_y","_r"];
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_r = false;
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_small = (_this select 1) - ((_this select 2) / 2);
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_large = (_this select 1) + ((_this select 2) / 2);
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_x = ((_this select 3) select 0) - ((_this select 0) select 0);
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_y = ((_this select 3) select 1) - ((_this select 0) select 1);
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_dir1 = _x atan2 _y;
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if (_dir1 < 0) then {_dir1 = _dir1 + 360};
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_dir2 = _dir1 - 360;
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_dir3 = _dir1 + 360;
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if ((_dir1 >= _small && _dir1 <= _large) || (_dir2 >= _small && _dir2 <= _large) || (_dir3 >= _small && _dir3 <= _large)) then {_r = true};
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_r |