godot/core/array.cpp
2016-11-18 18:45:51 -02:00

329 lines
6.8 KiB
C++

/*************************************************************************/
/* array.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
/* */
/* 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. */
/*************************************************************************/
#include "array.h"
#include "vector.h"
#include "hashfuncs.h"
#include "variant.h"
#include "object.h"
struct ArrayPrivate {
SafeRefCount refcount;
Vector<Variant> array;
bool shared;
};
void Array::_ref(const Array& p_from) const {
ArrayPrivate *_fp = p_from._p;
ERR_FAIL_COND(!_fp); // should NOT happen.
if (_fp == _p)
return; //wathever it is, nothing to do here move along
bool success = _fp->refcount.ref();
ERR_FAIL_COND(!success); //should really not happen either
_unref();
if (_fp->shared) {
_p = p_from._p;
} else {
_p = memnew( ArrayPrivate );
_p->shared=false;
_p->refcount.init();
_p->array=_fp->array;
if (_fp->refcount.unref())
memdelete(_fp);
}
}
void Array::_unref() const {
if (!_p)
return;
if (_p->refcount.unref()) {
memdelete(_p);
}
_p=NULL;
}
Variant& Array::operator[](int p_idx) {
return _p->array[p_idx];
}
const Variant& Array::operator[](int p_idx) const {
return _p->array[p_idx];
}
int Array::size() const {
return _p->array.size();
}
bool Array::empty() const {
return _p->array.empty();
}
void Array::clear() {
_p->array.clear();
}
bool Array::is_shared() const {
return _p->shared;
}
bool Array::operator==(const Array& p_array) const {
return _p==p_array._p;
}
uint32_t Array::hash() const {
uint32_t h=hash_djb2_one_32(0);
for (int i=0;i<_p->array.size();i++) {
h = hash_djb2_one_32( _p->array[i].hash(), h);
}
return h;
}
void Array::operator=(const Array& p_array) {
_ref(p_array);
}
void Array::push_back(const Variant& p_value) {
_p->array.push_back(p_value);
}
Error Array::resize(int p_new_size) {
return _p->array.resize(p_new_size);
}
void Array::insert(int p_pos, const Variant& p_value) {
_p->array.insert(p_pos,p_value);
}
void Array::erase(const Variant& p_value) {
_p->array.erase(p_value);
}
Variant Array::front() const {
ERR_FAIL_COND_V(_p->array.size() == 0, Variant());
return operator[](0);
}
Variant Array::back() const {
ERR_FAIL_COND_V(_p->array.size() == 0, Variant());
return operator[](_p->array.size() - 1);
}
int Array::find(const Variant& p_value, int p_from) const {
return _p->array.find(p_value, p_from);
}
int Array::rfind(const Variant& p_value, int p_from) const {
if (_p->array.size() == 0)
return -1;
if (p_from < 0) {
// Relative offset from the end
p_from = _p->array.size() + p_from;
}
if (p_from < 0 || p_from >= _p->array.size()) {
// Limit to array boundaries
p_from = _p->array.size() - 1;
}
for (int i=p_from; i>=0; i--) {
if(_p->array[i] == p_value){
return i;
};
};
return -1;
}
int Array::find_last(const Variant& p_value) const {
return rfind(p_value);
}
int Array::count(const Variant& p_value) const {
if(_p->array.size() == 0)
return 0;
int amount=0;
for (int i=0; i<_p->array.size(); i++) {
if(_p->array[i] == p_value){
amount++;
};
};
return amount;
}
bool Array::has(const Variant& p_value) const {
return _p->array.find(p_value, 0) != -1;
}
void Array::remove(int p_pos) {
_p->array.remove(p_pos);
}
void Array::set(int p_idx,const Variant& p_value) {
operator[](p_idx)=p_value;
}
const Variant& Array::get(int p_idx) const {
return operator[](p_idx);
}
struct _ArrayVariantSort {
_FORCE_INLINE_ bool operator()(const Variant& p_l, const Variant& p_r) const {
bool valid=false;
Variant res;
Variant::evaluate(Variant::OP_LESS,p_l,p_r,res,valid);
if (!valid)
res=false;
return res;
}
};
void Array::sort() {
_p->array.sort_custom<_ArrayVariantSort>();
}
struct _ArrayVariantSortCustom {
Object *obj;
StringName func;
_FORCE_INLINE_ bool operator()(const Variant& p_l, const Variant& p_r) const {
const Variant*args[2]={&p_l,&p_r};
Variant::CallError err;
bool res = obj->call(func,args,2,err);
if (err.error!=Variant::CallError::CALL_OK)
res=false;
return res;
}
};
void Array::sort_custom(Object *p_obj,const StringName& p_function){
ERR_FAIL_NULL(p_obj);
SortArray<Variant,_ArrayVariantSortCustom> avs;
avs.compare.obj=p_obj;
avs.compare.func=p_function;
avs.sort(_p->array.ptr(),_p->array.size());
}
void Array::invert(){
_p->array.invert();
}
void Array::push_front(const Variant& p_value) {
_p->array.insert(0,p_value);
}
Variant Array::pop_back(){
if (!_p->array.empty()) {
int n = _p->array.size() - 1;
Variant ret = _p->array.get(n);
_p->array.resize(n);
return ret;
}
return Variant();
}
Variant Array::pop_front(){
if (!_p->array.empty()) {
Variant ret = _p->array.get(0);
_p->array.remove(0);
return ret;
}
return Variant();
}
Array::Array(const Array& p_from) {
_p=NULL;
_ref(p_from);
}
Array::Array(bool p_shared) {
_p = memnew( ArrayPrivate );
_p->refcount.init();
_p->shared=p_shared;
}
Array::~Array() {
_unref();
}