+ /*
+ Disable removal if chest contains something
+ */
+ InventoryList *list = m_inventory->getList("0");
+ if(list == NULL)
+ return false;
+ if(list->getUsedSlots() == 0)
+ return false;
+ return true;
+}
+
+/*
+ FurnaceNodeMetadata
+*/
+
+// Prototype
+FurnaceNodeMetadata proto_FurnaceNodeMetadata;
+
+FurnaceNodeMetadata::FurnaceNodeMetadata()
+{
+ NodeMetadata::registerType(typeId(), create);
+
+ m_inventory = new Inventory();
+ m_inventory->addList("fuel", 1);
+ m_inventory->addList("src", 1);
+ m_inventory->addList("dst", 4);
+
+ m_step_accumulator = 0;
+ m_fuel_totaltime = 0;
+ m_fuel_time = 0;
+ m_src_totaltime = 0;
+ m_src_time = 0;
+}
+FurnaceNodeMetadata::~FurnaceNodeMetadata()
+{
+ delete m_inventory;
+}
+u16 FurnaceNodeMetadata::typeId() const
+{
+ return CONTENT_FURNACE;
+}
+NodeMetadata* FurnaceNodeMetadata::clone()
+{
+ FurnaceNodeMetadata *d = new FurnaceNodeMetadata();
+ *d->m_inventory = *m_inventory;
+ return d;
+}
+NodeMetadata* FurnaceNodeMetadata::create(std::istream &is)
+{
+ FurnaceNodeMetadata *d = new FurnaceNodeMetadata();
+
+ d->m_inventory->deSerialize(is);
+
+ int temp;
+ is>>temp;
+ d->m_fuel_totaltime = (float)temp/10;
+ is>>temp;
+ d->m_fuel_time = (float)temp/10;
+
+ return d;
+}
+void FurnaceNodeMetadata::serializeBody(std::ostream &os)
+{
+ m_inventory->serialize(os);
+ os<<itos(m_fuel_totaltime*10)<<" ";
+ os<<itos(m_fuel_time*10)<<" ";
+}
+std::string FurnaceNodeMetadata::infoText()
+{
+ //return "Furnace";
+ if(m_fuel_time >= m_fuel_totaltime)
+ {
+ InventoryList *src_list = m_inventory->getList("src");
+ assert(src_list);
+ InventoryItem *src_item = src_list->getItem(0);
+
+ if(src_item)
+ return "Furnace is out of fuel";
+ else
+ return "Furnace is inactive";
+ }
+ else
+ {
+ std::string s = "Furnace is active (";
+ s += itos(m_fuel_time/m_fuel_totaltime*100);
+ s += "%)";
+ return s;
+ }
+}
+void FurnaceNodeMetadata::inventoryModified()
+{
+ dstream<<"Furnace inventory modification callback"<<std::endl;
+}
+bool FurnaceNodeMetadata::step(float dtime)
+{
+ // Update at a fixed frequency
+ const float interval = 0.5;
+ m_step_accumulator += dtime;
+ if(m_step_accumulator < interval)
+ return false;
+ m_step_accumulator -= interval;
+ dtime = interval;
+
+ //dstream<<"Furnace step dtime="<<dtime<<std::endl;
+
+ InventoryList *dst_list = m_inventory->getList("dst");
+ assert(dst_list);
+
+ InventoryList *src_list = m_inventory->getList("src");
+ assert(src_list);
+ InventoryItem *src_item = src_list->getItem(0);
+
+ // Start only if there are free slots in dst, so that it can
+ // accomodate any result item
+ if(dst_list->getFreeSlots() > 0 && src_item && src_item->isCookable())
+ {
+ m_src_totaltime = 3;
+ }
+ else
+ {
+ m_src_time = 0;
+ m_src_totaltime = 0;
+ }
+
+ if(m_fuel_time < m_fuel_totaltime)
+ {
+ //dstream<<"Furnace is active"<<std::endl;
+ m_fuel_time += dtime;
+ m_src_time += dtime;
+ if(m_src_time >= m_src_totaltime && m_src_totaltime > 0.001
+ && src_item)
+ {
+ InventoryItem *cookresult = src_item->createCookResult();
+ dst_list->addItem(cookresult);
+ src_list->decrementMaterials(1);
+ m_src_time = 0;
+ m_src_totaltime = 0;
+ }
+ return true;
+ }
+
+ if(src_item == NULL || m_src_totaltime < 0.001)
+ {
+ return false;
+ }
+
+ bool changed = false;
+
+ //dstream<<"Furnace is out of fuel"<<std::endl;
+
+ InventoryList *fuel_list = m_inventory->getList("fuel");
+ assert(fuel_list);
+ InventoryItem *fuel_item = fuel_list->getItem(0);
+
+ if(ItemSpec(ITEM_MATERIAL, CONTENT_TREE).checkItem(fuel_item))
+ {
+ m_fuel_totaltime = 10;
+ m_fuel_time = 0;
+ fuel_list->decrementMaterials(1);
+ changed = true;
+ }
+ else if(ItemSpec(ITEM_MATERIAL, CONTENT_WOOD).checkItem(fuel_item))
+ {
+ m_fuel_totaltime = 5;
+ m_fuel_time = 0;
+ fuel_list->decrementMaterials(1);
+ changed = true;
+ }
+ else if(ItemSpec(ITEM_CRAFT, "lump_of_coal").checkItem(fuel_item))
+ {
+ m_fuel_totaltime = 10;
+ m_fuel_time = 0;
+ fuel_list->decrementMaterials(1);
+ changed = true;
+ }
+ else
+ {
+ //dstream<<"No fuel found"<<std::endl;
+ }
+
+ return changed;
+}