arma2-epoch-server/@DayZ_Epoch_Server/addons/dayz_server/DZAI/scripts/buildWeightedTables.sqf
2022-04-21 16:15:41 +03:00

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private ["_startTime","_getWeightedIndices"];
_startTime = diag_tickTime;
//Function exerpt from fn_selectRandomWeighted.sqf written by Joris-Jan van 't Land
_getWeightedIndices = {
private ["_array", "_weights","_index","_weighted","_i"];
_array = _this select 0;
_weights = _this select 1;
//Parameter validation.
if ((typeName _array) != (typeName [])) exitWith {debugLog "Log: [selectRandomWeighted] Array (0) must be an Array!"; nil};
if ((typeName _weights) != (typeName [])) exitWith {debugLog "Log: [selectRandomWeighted] Weights (1) must be an Array!"; nil};
if ((count _array) > (count _weights)) exitWith {debugLog "Log: [selectRandomWeighted] There must be at least as many elements in Weights (1) as there are in Array (0)!"; nil};
//Created weighted array of indices.
private ["_weighted"];
_weighted = [];
for "_i" from 0 to ((count _weights) - 1) do
{
private ["_weight"];
_weight = _weights select _i;
//Ensure the weight is a Number.
//If it's not, set weight to 0 to exclude it.
if ((typeName _weight) != (typeName 0)) then {debugLog "Log: [selectRandomWeighted] Weights should be Numbers; weight set to 0!"; _weight = 0};
//The weight should be a Number between 0 and 1.
if (_weight < 0) then {debugLog "Log: [selectRandomWeighted] Weights should be more than or equal to 0; weight set to 0!"; _weight = 0};
//if (_weight > 1) then {debugLog "Log: [selectRandomWeighted] Weights should be less than or equal to 1; weight set to 1!"; _weight = 1};
//Normalize the weight for a precision of hundreds.
_weight = round(_weight * 100);
for "_k" from 0 to (_weight - 1) do
{
//_weighted = _weighted + [_i];
_weighted set [count _weighted,_i];
};
};
_weighted
};
{
private ["_weightedTable","_gradeChances"];
_gradeChances = missionNamespace getVariable (_x select 0);
_weightedTable = [DZAI_weaponGrades,_gradeChances] call _getWeightedIndices;
missionNamespace setVariable [_x select 1,_weightedTable];
missionNamespace setVariable [_x select 0,nil];
} count [
//Input variable - Gradechances array, Output variable - Gradeindices array
["DZAI_gradeChances0","DZAI_gradeIndices0"],
["DZAI_gradeChances1","DZAI_gradeIndices1"],
["DZAI_gradeChances2","DZAI_gradeIndices2"],
["DZAI_gradeChances3","DZAI_gradeIndices3"],
["DZAI_gradeChancesDyn","DZAI_gradeIndicesDyn"]
];
if (DZAI_debugLevel > 0) then {diag_log format ["[DZAI] DZAI finished building weighted weapongrade tables in %1 seconds.",(diag_tickTime - _startTime)]};
true