add CBA_fnc_selectRandomArray (#1049)

* Initial commit * Fixes and improvements * Update addons/arrays/fnc_selectRandom.sqf Co-Authored-By: neilzar <neil.evers.1995@gmail.com> * Implement reviews * I want a min there * Add semicolon to please OCD Co-Authored-By: neilzar <neil.evers.1995@gmail.com> * Rename to selectSomeRandom * function name * update function name * update function name
CBATeam · Feb 9, 2019 · d38acc9 · d38acc9
1 parent 70fbbb5
commit d38acc9
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diff --git a/addons/arrays/CfgFunctions.hpp b/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);
         };

diff --git a/addons/arrays/fnc_selectRandomArray.sqf b/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