rename item data to count, add function to get current class name in lua

src/framework/luascript/luainterface.cpp

@@ -48,7 +48,8 @@ void LuaInterface::init()
 
     // register LuaObject, the base of all other objects
     registerClass<LuaObject>();
-    bindClassMemberGetField<LuaObject>("use_count", &LuaObject::getUseCount);
+    bindClassMemberFunction<LuaObject>("getUseCount", &LuaObject::getUseCount);
+    bindClassMemberFunction<LuaObject>("getClassName", &LuaObject::getClassName);
 }
 
 void LuaInterface::terminate()
@@ -958,7 +959,7 @@ void LuaInterface::pushObject(const LuaObjectPtr& obj)
     new(newUserdata(sizeof(LuaObjectPtr))) LuaObjectPtr(obj);
 
     // set the userdata metatable
-    getGlobal(Fw::mkstr(obj->getLuaObjectName(), "_mt"));
+    getGlobal(Fw::mkstr(obj->getClassName(), "_mt"));
     assert(!isNil());
     setMetatable();
 }

src/framework/luascript/luaobject.h

@@ -61,8 +61,8 @@ public:
     /// @note each userdata of this object on lua counts as a reference
     int getUseCount();
 
-    /// Returns the class name used in Lua
-    virtual std::string getLuaObjectName() const {
+    /// Returns the derived class name, its the same name used in Lua
+    virtual std::string getClassName() const {
         // TODO: this could be cached for more performance
         return Fw::demangleName(typeid(*this).name());
     }

src/otclient/core/item.cpp

@@ -32,7 +32,7 @@
 
 Item::Item() : Thing()
 {
-    m_data = 1;
+    m_count = 1;
 }
 
 ItemPtr Item::create(int id)
@@ -77,26 +77,26 @@ void Item::setPosition(const Position& position)
     Thing::setPosition(position);
 }
 
-void Item::setData(uint8 data)
+void Item::setCount(uint8 count)
 {
     if(isStackable() && getNumPatternsX() == 4 && getNumPatternsY() == 2) {
-        if(data < 5) {
-            m_xPattern = data-1;
+        if(count < 5) {
+            m_xPattern = count-1;
             m_yPattern = 0;
         }
-        else if(data < 10) {
+        else if(count < 10) {
             m_xPattern = 0;
             m_yPattern = 1;
         }
-        else if(data < 25) {
+        else if(count < 25) {
             m_xPattern = 1;
             m_yPattern = 1;
         }
-        else if(data < 50) {
+        else if(count < 50) {
             m_xPattern = 2;
             m_yPattern = 1;
         }
-        else if(data <= 100) {
+        else if(count <= 100) {
             m_xPattern = 3;
             m_yPattern = 1;
         }
@@ -111,7 +111,7 @@ void Item::setData(uint8 data)
     }
     else if(isFluid() || isFluidContainer()) {
         int color = Otc::FluidTransparent;
-        switch(data) {
+        switch(count) {
         case Otc::FluidNone:
             color = Otc::FluidTransparent;
             break;
@@ -175,5 +175,5 @@ void Item::setData(uint8 data)
         m_yPattern = (color / 4) % getNumPatternsY();
     }
 
-    m_data = data;
+    m_count = count;
 }

src/otclient/core/item.h

@@ -36,14 +36,14 @@ public:
     void draw(const Point& dest, float scaleFactor);
 
     void setPosition(const Position &position);
-    void setData(uint8 data);
+    void setCount(uint8 data);
 
-    uint8 getData() { return m_data; }
+    uint8 getCount() { return m_count; }
 
     ItemPtr asItem() { return std::static_pointer_cast<Item>(shared_from_this()); }
 
 private:
-    uint8 m_data;
+    uint8 m_count;
 };
 
 #endif

src/otclient/core/map.cpp

@@ -71,7 +71,7 @@ void Map::load()
             if(item->isStackable() || item->isFluidContainer() || item->isFluid()) {
                 uint8 data;
                 in.read((char*)&data, sizeof(data));
-                item->setData(data);
+                item->setCount(data);
             }
             addThing(item, pos, 255);
             in.read((char*)&id, sizeof(id));
@@ -95,7 +95,7 @@ void Map::save()
                 id = item->getId();
                 out.write((char*)&id, sizeof(id));
                 if(item->isStackable() || item->isFluidContainer() || item->isFluid()) {
-                    uint8 data = item->getData();
+                    uint8 data = item->getCount();
                     out.write((char*)&data, sizeof(data));
                 }
             }

src/otclient/core/thing.h

@@ -108,9 +108,9 @@ protected:
     void internalDraw(const Point& dest, float scaleFactor, int layer);
     void updateType();
 
-    uint32 m_id;
+    uint32 m_id; //TODO: move to derived class to use less memory
     Position m_position;
-    uint8 m_xPattern, m_yPattern, m_zPattern, m_animation;
+    uint8 m_xPattern, m_yPattern, m_zPattern, m_animation; //TODO: remove this variables to use less memory
 
 private:
     ThingType *m_type;

src/otclient/luafunctions.cpp

@@ -129,7 +129,7 @@ void OTClient::registerLuaFunctions()
 
     g_lua.registerClass<Item, Thing>();
     g_lua.bindClassStaticFunction<Item>("create", &Item::create);
-    g_lua.bindClassMemberFunction<Item>("getData", &Item::getData);
+    g_lua.bindClassMemberFunction<Item>("getCount", &Item::getCount);
 
     g_lua.registerClass<Effect, Thing>();
     g_lua.registerClass<Missile, Thing>();

src/otclient/net/protocolgameparse.cpp

@@ -1125,7 +1125,7 @@ ItemPtr ProtocolGame::internalGetItem(InputMessage& msg, int id)
 
     ItemPtr item = Item::create(id);
     if(item->isStackable() || item->isFluidContainer() || item->isFluid())
-        item->setData(msg.getU8());
+        item->setCount(msg.getU8());
 
     return item;
 }

src/otclient/ui/uiitem.cpp

@@ -40,8 +40,8 @@ void UIItem::draw()
         g_painter.setColor(Fw::white);
         m_item->draw(topLeft, 1);
 
-        if(m_font && m_item->isStackable() && m_item->getData() > 1) {
-            std::string count = Fw::tostring(m_item->getData());
+        if(m_font && m_item->isStackable() && m_item->getCount() > 1) {
+            std::string count = Fw::tostring(m_item->getCount());
             m_font->renderText(count, Rect(m_rect.topLeft(), m_rect.bottomRight() - Point(3, 0)), Fw::AlignBottomRight, Color(231, 231, 231));
         }
 
@@ -56,14 +56,19 @@ void UIItem::setItemId(int id)
 {
     if(!m_item)
         m_item = Item::create(id);
-    else
-        m_item->setId(id);
+    else {
+        // remove item
+        if(id == 0)
+            m_item = nullptr;
+        else
+            m_item->setId(id);
+    }
 }
 
 void UIItem::setItemCount(int count)
 {
     if(m_item)
-        m_item->setData(count);
+        m_item->setCount(count);
 }
 
 void UIItem::onStyleApply(const std::string& styleName, const OTMLNodePtr& styleNode)

src/otclient/ui/uiitem.h

@@ -37,9 +37,10 @@ public:
     void setItemCount(int count);
     void setItem(const ItemPtr& item) { m_item = item; }
     void setVirtual(bool virt) { m_virtual = virt; }
+    void clearItem() { setItemId(0); }
 
-    int getItemId() { return m_item->getId(); }
-    int getItemCount() { return m_item->getData(); }
+    int getItemId() { return m_item ? m_item->getId() : 0; }
+    int getItemCount() { return m_item ? m_item->getCount() : 0; }
     ItemPtr getItem() { return m_item; }
     bool isVirtual() { return m_virtual; }