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Stranded - Snippet 1

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  1. void InventoryGui::setGui()
  2. {
  3.    if(inv)
  4.    {
  5.       // set item list
  6.       {
  7.          // here we have to hide the items which are assigned to slots
  8.          // create a 'is' array which determines visibility of an element (1=visible, 0=hidden)
  9.          Bool  *is=Alloc<Bool>(inv->items.elms()); // allocate bytes for all items in container
  10.          SetMem(is,1,inv->items.elms());           // set memory to '1' (make all items visible by default)
  11.          REPA(inv->slot) // iterate through all slots
  12.          {
  13.             if(inv->slot[i].valid()) // if the slot is valid
  14.             {
  15.                Int index=inv->items.validIndex(&inv->slot[i]()); // get index of a slot item in items container
  16.                if(InRange(index,inv->items)) // if its valid
  17.                   is[index]=0; // set visibility for item assigned to a slot to 0, to be hidden on the list
  18.             }
  19.          }
  20.          list.setData(inv->items,is); // set list data from items container and visibility list
  21.          Free(is); // free allocated memory
  22.       }
  23.  
  24.       // set slot images
  25.       REP(SLOT_NUM) // for all slots
  26.          if(i!=SLOT_TEMP) // skip temporary slot because it's not drawn using 'Image' class
  27.       {
  28.          GuiImage        &img_back=     slot_img[i][0], // background image, we use it for accessing its rectangle
  29.                          &img_item=     slot_img[i][1]; // item       image
  30.          Reference<Item> &    item=inv->slot    [i]   ; // item at slot
  31.  
  32.          if(!item.valid())img_item.set(NULL);else // if there is no item then clear the item image slot
  33.          {
  34.             Image *icon=item().icon; // access item's icon
  35.             img_item.set(icon);      // set slot image as the item's icon
  36.             if(icon)                 // set proper scaling
  37.             {
  38.                Vec2 size(icon->x(),icon->y()); size*=PIXEL_SIZE; // set default size
  39.                if(size.x>img_back.rect.w())size*=img_back.rect.w()/size.x; // clamp item size to background slot width
  40.                if(size.y>img_back.rect.h())size*=img_back.rect.h()/size.y; // clamp item size to background slot height
  41.                Rect rect(img_back.rect.center()); rect.extend(size/2);
  42.                img_item.setRect(rect);
  43.             }
  44.          }
  45.       }
  46.    }else
  47.    {
  48.       list.clear();
  49.       REP(SLOT_NUM)slot_img[i][1].set(NULL);
  50.    }
  51. }

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