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#ifndef JPALIST_H
#define JPALIST_H
#include "common.h"
/**
* @ingroup jsystem-jparticle
*
*/
template <class T>
struct JPANode {
JPANode() : mpPrev(NULL), mpNext(NULL) {
}
~JPANode() {}
JPANode<T>* getPrev() const { return mpPrev; }
JPANode<T>* getNext() const { return mpNext; }
T* getObject() { return &mData; }
/* 0x00 */ JPANode<T>* mpPrev;
/* 0x04 */ JPANode<T>* mpNext;
/* 0x08 */ T mData;
};
/**
* @ingroup jsystem-jparticle
*
*/
template <class T>
struct JPAList {
/* 0x00 */ JPANode<T>* mpFirst;
/* 0x04 */ JPANode<T>* mpLast;
/* 0x08 */ u32 mNum;
JPAList() : mpFirst(NULL), mpLast(NULL), mNum() {}
~JPAList() {}
JPANode<T>* getEnd() { return NULL; }
JPANode<T>* getFirst() const { return mpFirst; }
JPANode<T>* getLast() const { return mpLast; }
u32 getNum() const { return mNum; }
void push_front(JPANode<T>* node) {
if (mpFirst != NULL) {
node->mpPrev = NULL;
node->mpNext = mpFirst;
mpFirst->mpPrev = node;
mpFirst = node;
} else {
mpLast = node;
mpFirst = node;
node->mpNext = node->mpPrev = NULL;
}
mNum++;
}
void push_back(JPANode<T>* node) {
if (mpLast != NULL) {
node->mpPrev = mpLast;
node->mpNext = NULL;
mpLast->mpNext = node;
mpLast = node;
} else {
mpFirst = node;
mpLast = node;
node->mpNext = node->mpPrev = NULL;
}
mNum++;
}
JPANode<T>* pop_front() {
JPANode<T>* ret = NULL;
if (mNum == 1) {
ret = mpFirst;
mpFirst = mpLast = NULL;
mNum--;
} else if (mNum) {
ret = mpFirst;
ret->mpNext->mpPrev = NULL;
mpFirst = ret->mpNext;
mNum--;
}
return ret;
}
JPANode<T>* pop_back() {
JPANode<T>* ret = NULL;
if (mNum == 1) {
ret = mpLast;
mpFirst = mpLast = NULL;
mNum--;
} else if (mNum) {
ret = mpLast;
ret->mpPrev->mpNext = NULL;
mpLast = ret->mpPrev;
mNum--;
}
return ret;
}
JPANode<T>* erase(JPANode<T>* node) {
if (node->mpNext != NULL && node->mpPrev != NULL) {
node->mpPrev->mpNext = node->mpNext;
node->mpNext->mpPrev = node->mpPrev;
mNum--;
} else if (node->mpNext != NULL) {
node->mpNext->mpPrev = NULL;
mpFirst = node->mpNext;
mNum--;
} else if (node->mpPrev != NULL) {
node->mpPrev->mpNext = NULL;
mpLast = node->mpPrev;
mNum--;
} else {
mpFirst = mpLast = NULL;
mNum--;
}
return node;
}
};
#endif
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