Adapted the client to the latest server changes.

There are two bugs left I'll take care about in the near future:

- Items dealing with more than one slot capacity
are only showing on the first equip slot.
- The unequip button doesn't get updated when clicking
on the equipped item.

A client design limitation known:
- The client still don't handle correctly items applied on more
than one item type at equip time.

3 files changed, 91 insertions, 45 deletions

diff --git a/src/net/manaserv/inventoryhandler.cpp b/src/net/manaserv/inventoryhandler.cpp
index cf7e8483..acef8ddd 100644
--- a/src/net/manaserv/inventoryhandler.cpp
+++ b/src/net/manaserv/inventoryhandler.cpp
@@ -42,6 +42,16 @@ extern Net::InventoryHandler *inventoryHandler;
 
 namespace ManaServ {
 
+struct EquipItemInfo
+{
+
+    EquipItemInfo(int itemId, int equipSlot, int amountUsed):
+        mItemId(itemId), mEquipSlot(equipSlot), mAmountUsed(amountUsed)
+    {}
+
+    int mItemId, mEquipSlot, mAmountUsed;
+};
+
 extern Connection *gameServerConnection;
 
 EquipBackend::EquipBackend()
@@ -67,7 +77,7 @@ void EquipBackend::clear()
     mSlots.assign(mSlots.size(), 0);
 }
 
-void EquipBackend::equip(int inventorySlot, int equipSlot, int amountUsed)
+void EquipBackend::equip(int itemId, int equipSlot, int amountUsed)
 {
     if (equipSlot < 0 || (unsigned) equipSlot >= mSlotTypes.size())
     {
@@ -75,16 +85,17 @@ void EquipBackend::equip(int inventorySlot, int equipSlot, int amountUsed)
         return;
     }
 
-    const SlotType &slotType = mSlotTypes.at(equipSlot);
-    Item *item = PlayerInfo::getInventory()->getItem(inventorySlot);
-
-    if (!item)
+    if (!itemDb->exists(itemId))
     {
-        logger->log("ManaServ::EquipBackend: No item at index %d",
-                    inventorySlot);
+        logger->log("ManaServ::EquipBackend: No item with id %d",
+                    itemId);
         return;
     }
 
+    const SlotType &slotType = mSlotTypes.at(equipSlot);
+
+    Item *itemInstance = new Item(itemId, 1, true);
+
     // Start at first index and search upwards for free slots to place the
     // item at the given inventory slot in
     int i = slotType.firstIndex;
@@ -94,32 +105,39 @@ void EquipBackend::equip(int inventorySlot, int equipSlot, int amountUsed)
     {
         if (!mSlots.at(i))
         {
-            mSlots[i] = item;
+            mSlots[i] = itemInstance;
             --amountUsed;
-
-            item->setEquipped(true);
-            inventoryWindow->updateButtons();
         }
     }
 }
 
-void EquipBackend::unequip(int inventorySlot)
+void EquipBackend::unequip(int equipmentSlot)
 {
-    Item *item = PlayerInfo::getInventory()->getItem(inventorySlot);
-
-    if (!item)
+    if (equipmentSlot < 0 || (unsigned) equipmentSlot >= mSlotTypes.size())
     {
-        logger->log("ManaServ::EquipBackend: No item at index %d",
-                    inventorySlot);
+        logger->log("ManaServ::EquipBackend: Equipment slot out of range");
         return;
     }
 
-    for (unsigned i = 0; i < mSlots.size(); ++i)
-        if (mSlots.at(i) == item)
-            mSlots[i] = 0;
+    const SlotType &slotType = mSlotTypes.at(equipmentSlot);
 
-    item->setEquipped(false);
-    inventoryWindow->updateButtons();
+    // Start at first index and search upwards for free slots to place the
+    // item at the given inventory slot in
+    int i = slotType.firstIndex;
+    const int end_i = i + slotType.count;
+    bool deleteDone = false;
+    for (; i < end_i; ++i)
+    {
+        if (mSlots.at(i))
+        {
+            if (!deleteDone)
+            {
+                delete mSlots[i];
+                deleteDone = true;
+            }
+            mSlots[i] = 0;
+        }
+    }
 }
 
 void EquipBackend::event(Event::Channel, const Event &event)
@@ -151,7 +169,7 @@ void EquipBackend::readEquipFile()
 
         SlotType slotType;
         slotType.name = XML::getProperty(childNode, "name", std::string());
-        slotType.count = XML::getProperty(childNode, "count", 1);
+        slotType.count = XML::getProperty(childNode, "capacity", 1);
         slotType.visible = XML::getBoolProperty(childNode, "visible", false);
         slotType.firstIndex = slotCount;
 
@@ -193,12 +211,37 @@ void InventoryHandler::handleMessage(Net::MessageIn &msg)
                     int amount = msg.readInt16();
                     PlayerInfo::setInventoryItem(slot, id, amount);
                 }
+
+                // A map of { item instance, {equip slot, item id, amount used}}
+                std::map<int, EquipItemInfo> equipItemsInfo;
+                std::map<int, EquipItemInfo>::iterator it;
                 while (msg.getUnreadLength())
                 {
                     int equipSlot = msg.readInt16();
-                    int inventorySlot = msg.readInt16();
+                    int itemId = msg.readInt16();
+                    int itemInstance = msg.readInt16();
+
+                    // Turn the data received into a usable format
+                    it = equipItemsInfo.find(itemInstance);
+                    if (it == equipItemsInfo.end())
+                    {
+                        // Add a new entry
+                        equipItemsInfo.insert(std::make_pair(itemInstance,
+                            EquipItemInfo(itemId, equipSlot, 1)));
+                    }
+                    else
+                    {
+                        // Add amount to the existing entry
+                        it->second.mAmountUsed++;
+                    }
+                }
 
-                    mEquipBackend.equip(inventorySlot, equipSlot);
+                for (it = equipItemsInfo.begin(); it != equipItemsInfo.end();
+                     ++it)
+                {
+                    mEquipBackend.equip(it->second.mItemId,
+                                        it->second.mEquipSlot,
+                                        it->second.mAmountUsed);
                 }
             }
             break;
@@ -214,28 +257,31 @@ void InventoryHandler::handleMessage(Net::MessageIn &msg)
             break;
 
         case GPMSG_EQUIP:
-            while (msg.getUnreadLength())
             {
-                int inventorySlot = msg.readInt16();
+                int itemId = msg.readInt16();
                 int equipSlotCount = msg.readInt16();
 
-                if (equipSlotCount == 0)
-                {
-                    // No slots means to unequip this item
-                    mEquipBackend.unequip(inventorySlot);
-                }
-                else
+                if (equipSlotCount <= 0)
+                    break;
+
+                // Otherwise equip the item in the given slots
+                while (equipSlotCount--)
                 {
-                    // Otherwise equip the item in the given slots
-                    while (equipSlotCount--)
-                    {
-                        unsigned int equipSlot = msg.readInt16();
-                        unsigned int amountUsed = msg.readInt16();
+                    unsigned int equipSlot = msg.readInt16();
+                    unsigned int amountUsed = msg.readInt16();
 
-                        mEquipBackend.equip(inventorySlot, equipSlot,
+                    if (amountUsed == 0)
+                    {
+                        // No slots means to unequip this item
+                        mEquipBackend.unequip(equipSlot);
+                    }
+                    else
+                    {
+                        mEquipBackend.equip(itemId, equipSlot,
                                             amountUsed);
                     }
                 }
+
             }
             break;
     }
diff --git a/src/net/manaserv/inventoryhandler.h b/src/net/manaserv/inventoryhandler.h
index 255f601c..a57b493a 100644
--- a/src/net/manaserv/inventoryhandler.h
+++ b/src/net/manaserv/inventoryhandler.h
@@ -41,8 +41,8 @@ class EquipBackend : public Equipment::Backend, public EventListener
         Item *getEquipment(int index) const;
         void clear();
 
-        void equip(int inventorySlot, int equipSlot, int amountUsed = 1);
-        void unequip(int inventorySlot);
+        void equip(int itemId, int equipSlot, int amountUsed = 1);
+        void unequip(int equipSlot);
 
         void event(Event::Channel channel, const Event &event);
 
diff --git a/src/net/manaserv/manaserv_protocol.h b/src/net/manaserv/manaserv_protocol.h
index 1543504e..12d05e11 100644
--- a/src/net/manaserv/manaserv_protocol.h
+++ b/src/net/manaserv/manaserv_protocol.h
@@ -90,12 +90,12 @@ enum {
     GPMSG_PLAYER_SERVER_CHANGE     = 0x0101, // B*32 token, S game address, W game port
     PGMSG_PICKUP                   = 0x0110, // W*2 position
     PGMSG_DROP                     = 0x0111, // W slot, W amount
-    PGMSG_EQUIP                    = 0x0112, // W slot
-    PGMSG_UNEQUIP                  = 0x0113, // W slot
+    PGMSG_EQUIP                    = 0x0112, // W inventory slot
+    PGMSG_UNEQUIP                  = 0x0113, // W equipment slot
     PGMSG_MOVE_ITEM                = 0x0114, // W slot1, W slot2, W amount
     GPMSG_INVENTORY                = 0x0120, // { W slot, W item id [, W amount] (if item id is nonzero) }*
-    GPMSG_INVENTORY_FULL           = 0x0121, // W inventory slot count { W slot, W itemId, W amount }, { W equip slot, W invy slot}*
-    GPMSG_EQUIP                    = 0x0122, // { W Invy slot, W equip slot type count { W equip slot, W number used} }*
+    GPMSG_INVENTORY_FULL           = 0x0121, // W inventory slot count { W slot, W itemId, W amount }, { W equip slot type, W item id, W item instance}*
+    GPMSG_EQUIP                    = 0x0122, // W item Id, W equip slot type count { W equip slot, W capacity used}*
     GPMSG_PLAYER_ATTRIBUTE_CHANGE  = 0x0130, // { W attribute, D base value (in 1/256ths), D modified value (in 1/256ths)}*
     GPMSG_PLAYER_EXP_CHANGE        = 0x0140, // { W skill, D exp got, D exp needed }*
     GPMSG_LEVELUP                  = 0x0150, // W new level, W character points, W correction points