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/*************************************************************************/
/* vector.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef VECTOR_H
#define VECTOR_H
/**
* @class Vector
* @author Juan Linietsky
* Vector container. Regular Vector Container. Use with care and for smaller arrays when possible. Use Vector for large arrays.
*/
#include "core/cowdata.h"
#include "core/error_macros.h"
#include "core/os/copymem.h"
#include "core/os/memory.h"
#include "core/sort_array.h"
template <class T>
class VectorWriteProxy {
public:
_FORCE_INLINE_ T &operator[](int p_index) {
CRASH_BAD_INDEX(p_index, ((Vector<T> *)(this))->_cowdata.size());
return ((Vector<T> *)(this))->_cowdata.ptrw()[p_index];
}
};
template <class T>
class Vector {
friend class VectorWriteProxy<T>;
public:
VectorWriteProxy<T> write;
private:
CowData<T> _cowdata;
public:
bool push_back(T p_elem);
_FORCE_INLINE_ bool append(const T &p_elem) { return push_back(p_elem); } //alias
void remove(int p_index) { _cowdata.remove(p_index); }
void erase(const T &p_val) {
int idx = find(p_val);
if (idx >= 0) {
remove(idx);
}
}
void invert();
_FORCE_INLINE_ T *ptrw() { return _cowdata.ptrw(); }
_FORCE_INLINE_ const T *ptr() const { return _cowdata.ptr(); }
_FORCE_INLINE_ void clear() { resize(0); }
_FORCE_INLINE_ bool empty() const { return _cowdata.empty(); }
_FORCE_INLINE_ T get(int p_index) { return _cowdata.get(p_index); }
_FORCE_INLINE_ const T get(int p_index) const { return _cowdata.get(p_index); }
_FORCE_INLINE_ void set(int p_index, const T &p_elem) { _cowdata.set(p_index, p_elem); }
_FORCE_INLINE_ int size() const { return _cowdata.size(); }
Error resize(int p_size) { return _cowdata.resize(p_size); }
_FORCE_INLINE_ const T &operator[](int p_index) const { return _cowdata.get(p_index); }
Error insert(int p_pos, T p_val) { return _cowdata.insert(p_pos, p_val); }
int find(const T &p_val, int p_from = 0) const { return _cowdata.find(p_val, p_from); }
void append_array(Vector<T> p_other);
template <class C>
void sort_custom() {
int len = _cowdata.size();
if (len == 0) {
return;
}
T *data = ptrw();
SortArray<T, C> sorter;
sorter.sort(data, len);
}
void sort() {
sort_custom<_DefaultComparator<T>>();
}
void ordered_insert(const T &p_val) {
int i;
for (i = 0; i < _cowdata.size(); i++) {
if (p_val < operator[](i)) {
break;
}
}
insert(i, p_val);
}
inline Vector &operator=(const Vector &p_from) {
_cowdata._ref(p_from._cowdata);
return *this;
}
Vector<uint8_t> to_byte_array() const {
Vector<uint8_t> ret;
ret.resize(size() * sizeof(T));
copymem(ret.ptrw(), ptr(), sizeof(T) * size());
return ret;
}
Vector<T> subarray(int p_from, int p_to) const {
if (p_from < 0) {
p_from = size() + p_from;
}
if (p_to < 0) {
p_to = size() + p_to;
}
ERR_FAIL_INDEX_V(p_from, size(), Vector<T>());
ERR_FAIL_INDEX_V(p_to, size(), Vector<T>());
Vector<T> slice;
int span = 1 + p_to - p_from;
slice.resize(span);
const T *r = ptr();
T *w = slice.ptrw();
for (int i = 0; i < span; ++i) {
w[i] = r[p_from + i];
}
return slice;
}
_FORCE_INLINE_ Vector() {}
_FORCE_INLINE_ Vector(const Vector &p_from) { _cowdata._ref(p_from._cowdata); }
_FORCE_INLINE_ ~Vector() {}
};
template <class T>
void Vector<T>::invert() {
for (int i = 0; i < size() / 2; i++) {
T *p = ptrw();
SWAP(p[i], p[size() - i - 1]);
}
}
template <class T>
void Vector<T>::append_array(Vector<T> p_other) {
const int ds = p_other.size();
if (ds == 0) {
return;
}
const int bs = size();
resize(bs + ds);
for (int i = 0; i < ds; ++i) {
ptrw()[bs + i] = p_other[i];
}
}
template <class T>
bool Vector<T>::push_back(T p_elem) {
Error err = resize(size() + 1);
ERR_FAIL_COND_V(err, true);
set(size() - 1, p_elem);
return false;
}
#endif // VECTOR_H
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