318 lines
8.6 KiB
C++
318 lines
8.6 KiB
C++
/*************************************************************************/
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/* vector.h */
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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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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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#ifndef VECTOR_H
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#define VECTOR_H
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/**
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* @class Vector
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* Vector container. Regular Vector Container. Use with care and for smaller arrays when possible. Use Vector for large arrays.
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*/
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#include "core/error/error_macros.h"
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#include "core/os/memory.h"
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#include "core/templates/cowdata.h"
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#include "core/templates/search_array.h"
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#include "core/templates/sort_array.h"
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#include <climits>
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#include <initializer_list>
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template <class T>
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class VectorWriteProxy {
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public:
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_FORCE_INLINE_ T &operator[](int p_index) {
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CRASH_BAD_INDEX(p_index, ((Vector<T> *)(this))->_cowdata.size());
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return ((Vector<T> *)(this))->_cowdata.ptrw()[p_index];
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}
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};
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template <class T>
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class Vector {
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friend class VectorWriteProxy<T>;
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public:
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VectorWriteProxy<T> write;
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private:
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CowData<T> _cowdata;
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public:
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bool push_back(T p_elem);
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_FORCE_INLINE_ bool append(const T &p_elem) { return push_back(p_elem); } //alias
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void fill(T p_elem);
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void remove_at(int p_index) { _cowdata.remove_at(p_index); }
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void erase(const T &p_val) {
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int idx = find(p_val);
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if (idx >= 0) {
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remove_at(idx);
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}
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}
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void reverse();
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_FORCE_INLINE_ T *ptrw() { return _cowdata.ptrw(); }
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_FORCE_INLINE_ const T *ptr() const { return _cowdata.ptr(); }
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_FORCE_INLINE_ void clear() { resize(0); }
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_FORCE_INLINE_ bool is_empty() const { return _cowdata.is_empty(); }
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_FORCE_INLINE_ T get(int p_index) { return _cowdata.get(p_index); }
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_FORCE_INLINE_ const T &get(int p_index) const { return _cowdata.get(p_index); }
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_FORCE_INLINE_ void set(int p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
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_FORCE_INLINE_ int size() const { return _cowdata.size(); }
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Error resize(int p_size) { return _cowdata.resize(p_size); }
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_FORCE_INLINE_ const T &operator[](int p_index) const { return _cowdata.get(p_index); }
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Error insert(int p_pos, T p_val) { return _cowdata.insert(p_pos, p_val); }
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int find(const T &p_val, int p_from = 0) const { return _cowdata.find(p_val, p_from); }
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void append_array(Vector<T> p_other);
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_FORCE_INLINE_ bool has(const T &p_val) const { return find(p_val) != -1; }
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template <class C>
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void sort_custom() {
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int len = _cowdata.size();
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if (len == 0) {
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return;
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}
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T *data = ptrw();
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SortArray<T, C> sorter;
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sorter.sort(data, len);
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}
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void sort() {
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sort_custom<_DefaultComparator<T>>();
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}
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int bsearch(const T &p_value, bool p_before) {
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SearchArray<T> search;
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return search.bisect(ptrw(), size(), p_value, p_before);
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}
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Vector<T> duplicate() {
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return *this;
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}
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void ordered_insert(const T &p_val) {
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int i;
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for (i = 0; i < _cowdata.size(); i++) {
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if (p_val < operator[](i)) {
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break;
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}
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}
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insert(i, p_val);
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}
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inline void operator=(const Vector &p_from) {
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_cowdata._ref(p_from._cowdata);
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}
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Vector<uint8_t> to_byte_array() const {
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Vector<uint8_t> ret;
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ret.resize(size() * sizeof(T));
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memcpy(ret.ptrw(), ptr(), sizeof(T) * size());
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return ret;
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}
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Vector<T> slice(int p_begin, int p_end = INT_MAX) const {
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Vector<T> result;
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const int s = size();
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int begin = CLAMP(p_begin, -s, s);
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if (begin < 0) {
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begin += s;
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}
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int end = CLAMP(p_end, -s, s);
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if (end < 0) {
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end += s;
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}
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ERR_FAIL_COND_V(begin > end, result);
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int result_size = end - begin;
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result.resize(result_size);
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const T *const r = ptr();
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T *const w = result.ptrw();
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for (int i = 0; i < result_size; ++i) {
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w[i] = r[begin + i];
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}
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return result;
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}
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bool operator==(const Vector<T> &p_arr) const {
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int s = size();
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if (s != p_arr.size()) {
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return false;
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}
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for (int i = 0; i < s; i++) {
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if (operator[](i) != p_arr[i]) {
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return false;
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}
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}
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return true;
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}
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bool operator!=(const Vector<T> &p_arr) const {
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int s = size();
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if (s != p_arr.size()) {
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return true;
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}
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for (int i = 0; i < s; i++) {
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if (operator[](i) != p_arr[i]) {
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return true;
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}
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}
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return false;
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}
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struct Iterator {
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_FORCE_INLINE_ T &operator*() const {
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return *elem_ptr;
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}
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_FORCE_INLINE_ T *operator->() const { return elem_ptr; }
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_FORCE_INLINE_ Iterator &operator++() {
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elem_ptr++;
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return *this;
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}
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_FORCE_INLINE_ Iterator &operator--() {
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elem_ptr--;
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return *this;
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}
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_FORCE_INLINE_ bool operator==(const Iterator &b) const { return elem_ptr == b.elem_ptr; }
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_FORCE_INLINE_ bool operator!=(const Iterator &b) const { return elem_ptr != b.elem_ptr; }
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Iterator(T *p_ptr) { elem_ptr = p_ptr; }
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Iterator() {}
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Iterator(const Iterator &p_it) { elem_ptr = p_it.elem_ptr; }
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private:
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T *elem_ptr = nullptr;
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};
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struct ConstIterator {
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_FORCE_INLINE_ const T &operator*() const {
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return *elem_ptr;
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}
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_FORCE_INLINE_ const T *operator->() const { return elem_ptr; }
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_FORCE_INLINE_ ConstIterator &operator++() {
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elem_ptr++;
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return *this;
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}
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_FORCE_INLINE_ ConstIterator &operator--() {
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elem_ptr--;
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return *this;
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}
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_FORCE_INLINE_ bool operator==(const ConstIterator &b) const { return elem_ptr == b.elem_ptr; }
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_FORCE_INLINE_ bool operator!=(const ConstIterator &b) const { return elem_ptr != b.elem_ptr; }
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ConstIterator(const T *p_ptr) { elem_ptr = p_ptr; }
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ConstIterator() {}
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ConstIterator(const ConstIterator &p_it) { elem_ptr = p_it.elem_ptr; }
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private:
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const T *elem_ptr = nullptr;
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};
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_FORCE_INLINE_ Iterator begin() {
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return Iterator(ptrw());
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}
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_FORCE_INLINE_ Iterator end() {
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return Iterator(ptrw() + size());
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}
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_FORCE_INLINE_ ConstIterator begin() const {
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return ConstIterator(ptr());
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}
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_FORCE_INLINE_ ConstIterator end() const {
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return ConstIterator(ptr() + size());
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}
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_FORCE_INLINE_ Vector() {}
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_FORCE_INLINE_ Vector(std::initializer_list<T> p_init) {
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Error err = _cowdata.resize(p_init.size());
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ERR_FAIL_COND(err);
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int i = 0;
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for (const T &element : p_init) {
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_cowdata.set(i++, element);
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}
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}
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_FORCE_INLINE_ Vector(const Vector &p_from) { _cowdata._ref(p_from._cowdata); }
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_FORCE_INLINE_ ~Vector() {}
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};
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template <class T>
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void Vector<T>::reverse() {
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for (int i = 0; i < size() / 2; i++) {
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T *p = ptrw();
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SWAP(p[i], p[size() - i - 1]);
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}
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}
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template <class T>
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void Vector<T>::append_array(Vector<T> p_other) {
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const int ds = p_other.size();
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if (ds == 0) {
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return;
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}
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const int bs = size();
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resize(bs + ds);
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for (int i = 0; i < ds; ++i) {
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ptrw()[bs + i] = p_other[i];
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}
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}
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template <class T>
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bool Vector<T>::push_back(T p_elem) {
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Error err = resize(size() + 1);
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ERR_FAIL_COND_V(err, true);
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set(size() - 1, p_elem);
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return false;
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}
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template <class T>
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void Vector<T>::fill(T p_elem) {
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T *p = ptrw();
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for (int i = 0; i < size(); i++) {
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p[i] = p_elem;
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}
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}
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#endif // VECTOR_H
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