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49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
#include "..\script_component.hpp"
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/*
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* Author: Ruthberg
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* Returns the the first intersection with an object between two positions. @todo rewrite using lineIntersectsSurfaces?
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*
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* Arguments:
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* 0: PositionASL <ARRAY>
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* 1: PositionATL <ARRAY>
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* 2: Accuracy <NUMBER>
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*
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* Return Value:
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* 0: Intersects <BOOL>
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* 1: Intersection Position ASL <ARRAY>
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*
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* Example:
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* [[1,2,3], [0,0,5], 5] call ace_common_fnc_getFirstTerrainIntersection
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*
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* Public: Yes
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*/
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params ["_source", "_destination", "_accuracy"];
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private _result = [false, [0, 0, 0]];
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private _distance = _source vectorDistance _destination;
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if (terrainIntersectASL [_source, _destination]) then {
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private _lower = 0;
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private _upper = 1;
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private _mid = 0.5;
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private _dir = _source vectorFromTo _destination;
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while {(_upper - _lower) * _distance > _accuracy} do {
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_mid = _lower + (_upper - _lower) / 2;
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if (terrainIntersectASL [_source, _source vectorAdd (_dir vectorMultiply (_mid * _distance))]) then {
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_upper = _mid;
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} else {
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_lower = _mid;
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};
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};
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_mid = _lower + (_upper - _lower) / 2;
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_result = [true, _source vectorAdd (_dir vectorMultiply (_mid * _distance))];
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};
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_result
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