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Add shuffle() method to Array
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@ -266,6 +266,20 @@ Array &Array::sort_custom(Object *p_obj, const StringName &p_function) {
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return *this;
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}
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void Array::shuffle() {
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const int n = _p->array.size();
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if (n < 2)
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return;
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Variant *data = _p->array.ptrw();
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for (int i = n - 1; i >= 1; i--) {
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const int j = Math::rand() % (i + 1);
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const Variant tmp = data[j];
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data[j] = data[i];
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data[i] = tmp;
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}
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}
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template <typename Less>
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_FORCE_INLINE_ int bisect(const Vector<Variant> &p_array, const Variant &p_value, bool p_before, const Less &p_less) {
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@ -71,6 +71,7 @@ public:
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Array &sort();
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Array &sort_custom(Object *p_obj, const StringName &p_function);
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void shuffle();
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int bsearch(const Variant &p_value, bool p_before = true);
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int bsearch_custom(const Variant &p_value, Object *p_obj, const StringName &p_function, bool p_before = true);
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Array &invert();
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@ -490,6 +490,7 @@ struct _VariantCall {
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VCALL_LOCALMEM1(Array, erase);
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VCALL_LOCALMEM0(Array, sort);
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VCALL_LOCALMEM2(Array, sort_custom);
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VCALL_LOCALMEM0(Array, shuffle);
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VCALL_LOCALMEM2R(Array, bsearch);
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VCALL_LOCALMEM4R(Array, bsearch_custom);
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VCALL_LOCALMEM0R(Array, duplicate);
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@ -1634,6 +1635,7 @@ void register_variant_methods() {
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ADDFUNC0RNC(ARRAY, NIL, Array, pop_front, varray());
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ADDFUNC0NC(ARRAY, NIL, Array, sort, varray());
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ADDFUNC2NC(ARRAY, NIL, Array, sort_custom, OBJECT, "obj", STRING, "func", varray());
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ADDFUNC0NC(ARRAY, NIL, Array, shuffle, varray());
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ADDFUNC2R(ARRAY, INT, Array, bsearch, NIL, "value", BOOL, "before", varray(true));
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ADDFUNC4R(ARRAY, INT, Array, bsearch_custom, NIL, "value", OBJECT, "obj", STRING, "func", BOOL, "before", varray(true));
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ADDFUNC0NC(ARRAY, NIL, Array, invert, varray());
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@ -296,6 +296,11 @@
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[/codeblock]
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</description>
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</method>
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<method name="shuffle">
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<description>
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Shuffle the array such that the items will have a random order.
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</description>
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</method>
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</methods>
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<constants>
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</constants>
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