mirror of
https://github.com/godotengine/godot.git
synced 2024-11-27 09:16:35 +08:00
146 lines
4.1 KiB
C++
146 lines
4.1 KiB
C++
/*************************************************************************/
|
|
/* vset.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2019 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 VSET_H
|
|
#define VSET_H
|
|
|
|
#include "core/typedefs.h"
|
|
#include "core/vector.h"
|
|
|
|
template <class T>
|
|
class VSet {
|
|
|
|
Vector<T> _data;
|
|
|
|
_FORCE_INLINE_ int _find(const T &p_val, bool &r_exact) const {
|
|
|
|
r_exact = false;
|
|
if (_data.empty())
|
|
return 0;
|
|
|
|
int low = 0;
|
|
int high = _data.size() - 1;
|
|
const T *a = &_data[0];
|
|
int middle = 0;
|
|
|
|
#if DEBUG_ENABLED
|
|
if (low > high)
|
|
ERR_PRINT("low > high, this may be a bug");
|
|
#endif
|
|
|
|
while (low <= high) {
|
|
middle = (low + high) / 2;
|
|
|
|
if (p_val < a[middle]) {
|
|
high = middle - 1; //search low end of array
|
|
} else if (a[middle] < p_val) {
|
|
low = middle + 1; //search high end of array
|
|
} else {
|
|
r_exact = true;
|
|
return middle;
|
|
}
|
|
}
|
|
|
|
//return the position where this would be inserted
|
|
if (a[middle] < p_val)
|
|
middle++;
|
|
return middle;
|
|
}
|
|
|
|
_FORCE_INLINE_ int _find_exact(const T &p_val) const {
|
|
|
|
if (_data.empty())
|
|
return -1;
|
|
|
|
int low = 0;
|
|
int high = _data.size() - 1;
|
|
int middle;
|
|
const T *a = &_data[0];
|
|
|
|
while (low <= high) {
|
|
middle = (low + high) / 2;
|
|
|
|
if (p_val < a[middle]) {
|
|
high = middle - 1; //search low end of array
|
|
} else if (a[middle] < p_val) {
|
|
low = middle + 1; //search high end of array
|
|
} else {
|
|
return middle;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
public:
|
|
void insert(const T &p_val) {
|
|
|
|
bool exact;
|
|
int pos = _find(p_val, exact);
|
|
if (exact)
|
|
return;
|
|
_data.insert(pos, p_val);
|
|
}
|
|
|
|
bool has(const T &p_val) const {
|
|
|
|
return _find_exact(p_val) != -1;
|
|
}
|
|
|
|
void erase(const T &p_val) {
|
|
|
|
int pos = _find_exact(p_val);
|
|
if (pos < 0)
|
|
return;
|
|
_data.remove(pos);
|
|
}
|
|
|
|
int find(const T &p_val) const {
|
|
|
|
return _find_exact(p_val);
|
|
}
|
|
|
|
_FORCE_INLINE_ bool empty() const { return _data.empty(); }
|
|
|
|
_FORCE_INLINE_ int size() const { return _data.size(); }
|
|
|
|
inline T &operator[](int p_index) {
|
|
|
|
return _data.write[p_index];
|
|
}
|
|
|
|
inline const T &operator[](int p_index) const {
|
|
|
|
return _data[p_index];
|
|
}
|
|
};
|
|
|
|
#endif // VSET_H
|