add CBA_fnc_selectRandomArray

addons/arrays/CfgFunctions.hpp

@@ -15,6 +15,7 @@ class CfgFunctions {
             PATHTO_FNC(join);
             PATHTO_FNC(reject);
             PATHTO_FNC(select);
+            PATHTO_FNC(selectRandomArray);
             PATHTO_FNC(shuffle);
             PATHTO_FNC(sortNestedArray);
         };

addons/arrays/fnc_selectRandomArray.sqf

@@ -0,0 +1,37 @@
+#include "script_component.hpp"
+/* ----------------------------------------------------------------------------
+Function: CBA_fnc_selectRandomArray
+
+Description:
+    Select a specified amount of elements from an array without picking the same element multiple times.
+
+Parameters:
+    _array  - Input Array <ARRAY>
+    _amount - Amount to select <NUMBER>
+
+Returns:
+    New array with the specified amount of randomly selected elements <ARRAY>
+
+Example:
+    (begin example)
+        _result = [[1, 2, 3, 4, 5], 2] call CBA_fnc_selectRandomArray;
+        // _result => [2, 4] (random)
+    (end)
+
+Author:
+    NeilZar
+---------------------------------------------------------------------------- */
+SCRIPT(selectRandomArray);
+
+params [["_array", [], [[]]], ["_amount", 0, [0]]];
+
+_amount = _amount min count _array;
+_array = + _array;
+
+private _result = [];
+
+for "_i" from 1 to _amount do {
+    _result pushBack (_array deleteAt floor random count _array);
+};
+
+_result