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418 lines
8.9 KiB
C++
418 lines
8.9 KiB
C++
/*************************************************************************/
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/* array.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "array.h"
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#include "core/hashfuncs.h"
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#include "core/object.h"
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#include "core/variant.h"
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#include "core/vector.h"
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class ArrayPrivate {
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public:
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SafeRefCount refcount;
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Vector<Variant> array;
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};
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void Array::_ref(const Array &p_from) const {
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ArrayPrivate *_fp = p_from._p;
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ERR_FAIL_COND(!_fp); // should NOT happen.
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if (_fp == _p)
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return; // whatever it is, nothing to do here move along
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bool success = _fp->refcount.ref();
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ERR_FAIL_COND(!success); // should really not happen either
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_unref();
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_p = p_from._p;
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}
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void Array::_unref() const {
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if (!_p)
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return;
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if (_p->refcount.unref()) {
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memdelete(_p);
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}
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_p = NULL;
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}
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Variant &Array::operator[](int p_idx) {
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return _p->array.write[p_idx];
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}
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const Variant &Array::operator[](int p_idx) const {
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return _p->array[p_idx];
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}
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int Array::size() const {
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return _p->array.size();
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}
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bool Array::empty() const {
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return _p->array.empty();
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}
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void Array::clear() {
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_p->array.clear();
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}
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bool Array::operator==(const Array &p_array) const {
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return _p == p_array._p;
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}
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uint32_t Array::hash() const {
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uint32_t h = hash_djb2_one_32(0);
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for (int i = 0; i < _p->array.size(); i++) {
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h = hash_djb2_one_32(_p->array[i].hash(), h);
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}
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return h;
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}
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void Array::operator=(const Array &p_array) {
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_ref(p_array);
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}
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void Array::push_back(const Variant &p_value) {
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_p->array.push_back(p_value);
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}
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Error Array::resize(int p_new_size) {
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return _p->array.resize(p_new_size);
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}
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void Array::insert(int p_pos, const Variant &p_value) {
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_p->array.insert(p_pos, p_value);
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}
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void Array::erase(const Variant &p_value) {
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_p->array.erase(p_value);
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}
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Variant Array::front() const {
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ERR_FAIL_COND_V(_p->array.size() == 0, Variant());
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return operator[](0);
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}
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Variant Array::back() const {
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ERR_FAIL_COND_V(_p->array.size() == 0, Variant());
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return operator[](_p->array.size() - 1);
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}
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int Array::find(const Variant &p_value, int p_from) const {
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return _p->array.find(p_value, p_from);
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}
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int Array::rfind(const Variant &p_value, int p_from) const {
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if (_p->array.size() == 0)
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return -1;
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if (p_from < 0) {
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// Relative offset from the end
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p_from = _p->array.size() + p_from;
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}
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if (p_from < 0 || p_from >= _p->array.size()) {
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// Limit to array boundaries
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p_from = _p->array.size() - 1;
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}
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for (int i = p_from; i >= 0; i--) {
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if (_p->array[i] == p_value) {
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return i;
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};
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};
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return -1;
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}
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int Array::find_last(const Variant &p_value) const {
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return rfind(p_value);
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}
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int Array::count(const Variant &p_value) const {
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if (_p->array.size() == 0)
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return 0;
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int amount = 0;
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for (int i = 0; i < _p->array.size(); i++) {
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if (_p->array[i] == p_value) {
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amount++;
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};
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};
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return amount;
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}
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bool Array::has(const Variant &p_value) const {
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return _p->array.find(p_value, 0) != -1;
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}
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void Array::remove(int p_pos) {
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_p->array.remove(p_pos);
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}
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void Array::set(int p_idx, const Variant &p_value) {
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operator[](p_idx) = p_value;
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}
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const Variant &Array::get(int p_idx) const {
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return operator[](p_idx);
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}
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Array Array::duplicate(bool p_deep) const {
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Array new_arr;
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int element_count = size();
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new_arr.resize(element_count);
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for (int i = 0; i < element_count; i++) {
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new_arr[i] = p_deep ? get(i).duplicate(p_deep) : get(i);
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}
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return new_arr;
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}
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struct _ArrayVariantSort {
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_FORCE_INLINE_ bool operator()(const Variant &p_l, const Variant &p_r) const {
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bool valid = false;
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Variant res;
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Variant::evaluate(Variant::OP_LESS, p_l, p_r, res, valid);
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if (!valid)
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res = false;
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return res;
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}
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};
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Array &Array::sort() {
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_p->array.sort_custom<_ArrayVariantSort>();
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return *this;
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}
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struct _ArrayVariantSortCustom {
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Object *obj;
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StringName func;
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_FORCE_INLINE_ bool operator()(const Variant &p_l, const Variant &p_r) const {
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const Variant *args[2] = { &p_l, &p_r };
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Variant::CallError err;
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bool res = obj->call(func, args, 2, err);
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if (err.error != Variant::CallError::CALL_OK)
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res = false;
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return res;
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}
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};
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Array &Array::sort_custom(Object *p_obj, const StringName &p_function) {
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ERR_FAIL_NULL_V(p_obj, *this);
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SortArray<Variant, _ArrayVariantSortCustom, true> avs;
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avs.compare.obj = p_obj;
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avs.compare.func = p_function;
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avs.sort(_p->array.ptrw(), _p->array.size());
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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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int lo = 0;
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int hi = p_array.size();
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if (p_before) {
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while (lo < hi) {
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const int mid = (lo + hi) / 2;
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if (p_less(p_array.get(mid), p_value)) {
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lo = mid + 1;
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} else {
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hi = mid;
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}
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}
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} else {
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while (lo < hi) {
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const int mid = (lo + hi) / 2;
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if (p_less(p_value, p_array.get(mid))) {
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hi = mid;
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} else {
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lo = mid + 1;
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}
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}
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}
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return lo;
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}
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int Array::bsearch(const Variant &p_value, bool p_before) {
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return bisect(_p->array, p_value, p_before, _ArrayVariantSort());
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}
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int Array::bsearch_custom(const Variant &p_value, Object *p_obj, const StringName &p_function, bool p_before) {
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ERR_FAIL_NULL_V(p_obj, 0);
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_ArrayVariantSortCustom less;
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less.obj = p_obj;
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less.func = p_function;
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return bisect(_p->array, p_value, p_before, less);
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}
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Array &Array::invert() {
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_p->array.invert();
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return *this;
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}
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void Array::push_front(const Variant &p_value) {
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_p->array.insert(0, p_value);
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}
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Variant Array::pop_back() {
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if (!_p->array.empty()) {
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int n = _p->array.size() - 1;
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Variant ret = _p->array.get(n);
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_p->array.resize(n);
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return ret;
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}
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return Variant();
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}
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Variant Array::pop_front() {
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if (!_p->array.empty()) {
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Variant ret = _p->array.get(0);
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_p->array.remove(0);
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return ret;
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}
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return Variant();
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}
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Variant Array::min() const {
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Variant minval;
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for (int i = 0; i < size(); i++) {
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if (i == 0) {
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minval = get(i);
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} else {
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bool valid;
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Variant ret;
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Variant test = get(i);
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Variant::evaluate(Variant::OP_LESS, test, minval, ret, valid);
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if (!valid) {
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return Variant(); //not a valid comparison
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}
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if (bool(ret)) {
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//is less
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minval = test;
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}
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}
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}
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return minval;
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}
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Variant Array::max() const {
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Variant maxval;
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for (int i = 0; i < size(); i++) {
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if (i == 0) {
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maxval = get(i);
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} else {
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bool valid;
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Variant ret;
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Variant test = get(i);
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Variant::evaluate(Variant::OP_GREATER, test, maxval, ret, valid);
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if (!valid) {
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return Variant(); //not a valid comparison
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}
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if (bool(ret)) {
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//is less
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maxval = test;
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}
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}
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}
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return maxval;
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}
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Array::Array(const Array &p_from) {
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_p = NULL;
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_ref(p_from);
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}
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Array::Array() {
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_p = memnew(ArrayPrivate);
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_p->refcount.init();
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}
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Array::~Array() {
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_unref();
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}
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