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https://github.com/acemod/ACE3.git
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80 lines
2.4 KiB
Plaintext
80 lines
2.4 KiB
Plaintext
#include "..\script_component.hpp"
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/*
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* Author: PabstMirror
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* Finds real x/y offset and map step for a 10 digit grid
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* Save time by preparing data one time at startup
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* Ideas from Nou's mapGridToPos and BIS_fnc_gridToPos
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*
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* Arguments:
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* None
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*
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* Return Value:
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* None
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*
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* Example:
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* [] call ace_common_fnc_getMapGridData
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*
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* Public: No
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*/
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GVAR(mapGridData) = [];
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//--- Extract grid values from world config (Borrowed from BIS_fnc_gridToPos)
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private _cfgGrid = configFile >> "CfgWorlds" >> worldName >> "Grid";
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private _offsetX = getNumber (_cfgGrid >> "offsetX");
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private _offsetY = getNumber (_cfgGrid >> "offsetY");
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private _zoomMax = 1e38;
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private _formatX = "";
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private _formatY = "";
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private _stepX = 1e10;
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private _stepY = 1e10;
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{
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private _zoom = getnumber (_x >> "zoomMax");
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if (_zoom < _zoomMax) then {
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_zoomMax = _zoom;
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_formatX = getText (_x >> "formatX");
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_formatY = getText (_x >> "formatY");
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_stepX = getNumber (_x >> "stepX");
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_stepY = getNumber (_x >> "stepY");
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};
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} forEach configProperties [_cfgGrid, "isClass _x", false];
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private _letterGrid = false;
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if (toLowerANSI _formatX find "a" != -1) then {_letterGrid = true};
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if (toLowerANSI _formatY find "a" != -1) then {_letterGrid = true};
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if (_letterGrid) exitWith {
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WARNING_3("Map Grid Warning (%1) - Map uses letter grids [%2, %3]",worldName,_formatX,_formatY);
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};
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//Start at [0, 500] and move north until we get a change in grid
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private _heightOffset = 500;
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private _startGrid = mapGridPosition [0, _heightOffset];
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private _originGrid = _startGrid;
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while {_startGrid == _originGrid} do {
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_heightOffset = _heightOffset + 1;
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_originGrid = mapGridPosition [0, _heightOffset];
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};
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//Calculate the real y offset
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private _realOffsetY = (parseNumber (_originGrid select [count _formatX, count _formatY])) * _stepY + _heightOffset - 1;
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//Calculate MGRS 10digit step - they should both be 1 meter:
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private _stepXat5 = _stepX * 10 ^ ((count _formatX) - 5);
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private _stepYat5 = -1 * _stepY * 10 ^ ((count _formatY) - 5);
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if (_stepYat5 < 0) then {
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TRACE_1("Northing is reversed",worldName);
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};
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if (_stepXat5 != 1) then {
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TRACE_2("MGRS 10 digit grid does not equal 1 meter",_stepXat5,worldName);
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};
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if (_stepYat5 != 1 && {_stepYat5 != -1}) then {
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TRACE_2("MGRS 10 digit grid does not equal 1 meter",_stepYat5,worldName);
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};
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GVAR(mapGridData) = [_offsetX, _realOffsetY, _stepXat5, _stepYat5];
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