Method ReadInventory

Descent3/Inventory.cpp:1058–1142

restores the inventory from file (returns number of bytes read)

// restores the inventory from file (returns number of bytes read)
int Inventory::ReadInventory(CFILE *file) {
  int start_pos = cftell(file);

  int num_items = cf_ReadInt(file);
  count = num_items;
  root = NULL;
  char temp[512];

  int t, i, otype;

  if (num_items > 0) {
    inven_item *item, *prev;

    while (num_items > 0) {
      t = cf_ReadInt(file);
      otype = cf_ReadInt(file);
      i = cf_ReadInt(file);

      // make sure the object is valid
      if (i == -1) {
        object *obj = ObjGet(t);
        ASSERT(obj);
        if (!obj) {
          mprintf(0, "Invalid object restoring inventory\n");
          // skip this object
          cf_ReadInt(file);
          cf_ReadInt(file);
          cf_ReadInt(file);
          cf_ReadString(temp, 512, file);
          cf_ReadString(temp, 512, file);
          cf_ReadString(temp, 512, file);
          cf_ReadInt(file);
          num_items--;
          count--;
          continue;
        }
      }

      if (root == NULL) {
        // there are no items in the list...time to add
        root = new inven_item;
        item = root;
        root->next = root;
        root->prev = root;
      } else {
        item = new inven_item;

        prev = root->prev;

        item->prev = prev;
        prev->next = item;
        item->next = root;
        root->prev = item;
      }

      item->type = t;
      item->id = i;
      item->otype = otype;