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Add shuffle() method to Array

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poke1024 2018-01-10 19:36:53 +01:00
parent a60896869e
commit 75d69fb4ec
4 changed files with 22 additions and 0 deletions
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14
core/array.cpp
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@ -266,6 +266,20 @@ Array &Array::sort_custom(Object *p_obj, const StringName &p_function) {
return *this;
}
void Array::shuffle() {
const int n = _p->array.size();
if (n < 2)
return;
Variant *data = _p->array.ptrw();
for (int i = n - 1; i >= 1; i--) {
const int j = Math::rand() % (i + 1);
const Variant tmp = data[j];
data[j] = data[i];
data[i] = tmp;
}
}
template <typename Less>
_FORCE_INLINE_ int bisect(const Vector<Variant> &p_array, const Variant &p_value, bool p_before, const Less &p_less) {