prj/cam/src/object/proplist.cpp

   1 /*
   2 @Copyright Looking Glass Studios, Inc.
   3 1996,1997,1998,1999,2000 Unpublished Work.
   4 */
   5
   6 // $Header: r:/t2repos/thief2/src/object/proplist.cpp,v 1.9 1997/12/19 15:28:35 TOML Exp $
   7 #include <proplist.h>
   8 #include <dlisttem.h>
   9
  10 // must be last header
  11 #include <dbmem.h>
  12
  13 ////////////////////////////////////////////////////////////
  14 //
  15 // cPropertyImplLlist
  16 //
  17 ////////////////////////////////////////////////////////////
  18
  19 cPropertyImplLlist::cPropertyImplLlist (int elem_size) :
  20    cPropertyImpl (elem_size)
  21 {
  22 }
  23
  24 BOOL cPropertyImplLlist::Get (ObjID obj, PropertyID, void **pptr) const
  25 {
  26    for (cListNode* node = List.GetFirst(); node != NULL; node = node->GetNext())
  27    {
  28       if (node->obj == obj)
  29       {
  30          *pptr = node->data;
  31          return TRUE;
  32       }
  33    }
  34    return FALSE;
  35 }
  36
  37 BOOL cPropertyImplLlist::Set (ObjID obj, PropertyID, void *ptr)
  38 {
  39    for (cListNode* node = List.GetFirst(); node != NULL; node = node->GetNext())
  40    {
  41       if (node->obj == obj)
  42       {
  43          // Change in place
  44          Copy(obj,node->data,ptr);
  45
  46          return FALSE;
  47       }
  48    }
  49
  50    // Add new node
  51    node = new cListNode(obj,elem_size_);
  52    List.Prepend(node);
  53    Init(obj,node->data);
  54    Copy(obj,node->data,ptr);
  55    return TRUE;
  56 }
  57
  58
  59 void* cPropertyImplLlist::Create (ObjID obj, PropertyID)
  60 {
  61    cListNode* pnode = new cListNode(obj,elem_size_);
  62    List.Prepend(pnode);
  63
  64    Init(obj,pnode->data);
  65
  66    return pnode->data;
  67 }
  68
  69
  70
  71 BOOL cPropertyImplLlist::Delete(ObjID obj, PropertyID)
  72 {
  73    for (cListNode* pnode = List.GetFirst(); pnode != NULL; pnode = pnode->GetNext())
  74    {
  75       if (pnode->obj == obj)
  76       {
  77          Term(obj,pnode->data);
  78          List.Remove(pnode);
  79          delete pnode;
  80          return TRUE;
  81       }
  82    }
  83
  84    // It never had the property anyway
  85    return FALSE;
  86 }
  87
  88 BOOL cPropertyImplLlist::Relevant (ObjID obj, PropertyID ) const
  89 {
  90    for (cListNode* pnode = List.GetFirst(); pnode != NULL; pnode = pnode->GetNext())
  91    {
  92       if (pnode->obj == obj)
  93       {
  94          return TRUE;
  95       }
  96    }
  97    return FALSE;
  98 }
  99
 100 void cPropertyImplLlist::Reset(PropertyID)
 101 {
 102    List.DestroyAll();
 103    List.SetEmpty();
 104 }
 105
 106
 107
 108 ////////////////////////////////////////
 109
 110 void cPropertyImplLlist::IterStart(PropertyID , sPropertyObjIter* iter) const
 111 {
 112    cListNode* first = List.GetFirst();
 113    iter->state[0] = first;
 114    iter->state[1] = (first != NULL) ? first->GetNext() : NULL;
 115 }
 116
 117 ////////////////////////////////////////
 118
 119 void cPropertyImplLlist::IterStop(PropertyID , sPropertyObjIter* ) const
 120 {
 121 }
 122
 123
 124 ////////////////////////////////////////
 125
 126 BOOL cPropertyImplLlist::IterNext(PropertyID , sPropertyObjIter* iter, ObjID* next, void** value) const
 127 {
 128    cListNode* node = (cListNode*)iter->state[0];
 129    if (node == NULL) return FALSE;
 130    *next = node->obj;
 131    *value = node->data;
 132    iter->state[0] = iter->state[1];
 133    if (iter->state[0] != NULL)
 134    {
 135       node = (cListNode*)iter->state[0];
 136       iter->state[1] = node->GetNext();
 137    }
 138    return TRUE;
 139 }
 140