ACE3/addons/maptools/functions/fnc_isInsideMapTool.sqf
2016-06-18 11:50:41 +02:00

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/*
* Author: esteldunedain
* Return true if the position is inside the map marker (to allow dragging).
*
* Arguments:
* 0: x Position (in meters) <NUMBER>
* 1: y Position (in meters) <NUMBER>
*
* Return Value:
* Boolean
*/
#include "script_component.hpp"
#define TEXTURE_WIDTH_IN_M 6205
#define DIST_BOTTOM_TO_CENTER_PERC -0.33
#define DIST_TOP_TO_CENTER_PERC 0.65
#define DIST_LEFT_TO_CENTER_PERC 0.30
if (GVAR(mapTool_Shown) == 0) exitWith {false};
private _textureWidth = [TEXTURE_WIDTH_IN_M, TEXTURE_WIDTH_IN_M / 2] select (GVAR(mapTool_Shown) - 1);
private _pos = [_this select 0, _this select 1, 0];
private _relPos = _pos vectorDiff [GVAR(mapTool_pos) select 0, GVAR(mapTool_pos) select 1, 0];
private _dirVector = [sin(GVAR(mapTool_angle)), cos(GVAR(mapTool_angle)), 0];
// Projection of the relative position over the longitudinal axis of the map tool
private _lambdaLong = _dirVector vectorDotProduct _relPos;
if (_lambdaLong < DIST_BOTTOM_TO_CENTER_PERC * _textureWidth) exitWith {false};
// Projection of the relative position over the trasversal axis of the map tool
private _lambdaTrasAbs = vectorMagnitude (_relPos vectorDiff (_dirVector vectorMultiply _lambdaLong));
if (_lambdaLong > DIST_TOP_TO_CENTER_PERC * _textureWidth) exitWith {false};
if (_lambdaTrasAbs > DIST_LEFT_TO_CENTER_PERC * _textureWidth) exitWith {false};
true