Merge pull request #46 from garrosh/master
[oweals/minetest.git] / src / inventory.h
index ca07bf46dcbbd71ae6b13ba9c721f16f1686d705..fcac5f647153cb9ecbf110ebe9888ac066610f67 100644 (file)
@@ -1,6 +1,6 @@
 /*
 Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
@@ -17,461 +17,231 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
-/*
-(c) 2010 Perttu Ahola <celeron55@gmail.com>
-*/
-
 #ifndef INVENTORY_HEADER
 #define INVENTORY_HEADER
 
 #include <iostream>
 #include <sstream>
 #include <string>
+#include <vector>
 #include "common_irrlicht.h"
 #include "debug.h"
-#include "mapblockobject.h"
-// For g_materials
-#include "main.h"
+#include "itemdef.h"
 
-#define QUANTITY_ITEM_MAX_COUNT 99
+struct ToolDiggingProperties;
 
-class InventoryItem
+struct ItemStack
 {
-public:
-       InventoryItem(u16 count);
-       virtual ~InventoryItem();
-       
-       static InventoryItem* deSerialize(std::istream &is);
-       
-       virtual const char* getName() const = 0;
-       // Shall write the name and the parameters
-       virtual void serialize(std::ostream &os) = 0;
-       // Shall make an exact clone of the item
-       virtual InventoryItem* clone() = 0;
-#ifndef SERVER
-       // Shall return an image to show in the GUI (or NULL)
-       virtual video::ITexture * getImage() { return NULL; }
-#endif
-       // Shall return a text to show in the GUI
-       virtual std::string getText() { return ""; }
+       ItemStack(): name(""), count(0), wear(0), metadata("") {}
+       ItemStack(std::string name_, u16 count_,
+                       u16 wear, std::string metadata_,
+                       IItemDefManager *itemdef);
+       ~ItemStack() {}
 
-       // Shall return true if the item can be add()ed to the other
-       virtual bool addableTo(InventoryItem *other)
-       {
-               return false;
-       }
-       
-       /*
-               Quantity methods
-       */
-       u16 getCount()
-       {
-               return m_count;
-       }
-       void setCount(u16 count)
-       {
-               m_count = count;
-       }
-       virtual u16 freeSpace()
-       {
-               return 0;
-       }
-       void add(u16 count)
-       {
-               assert(m_count + count <= QUANTITY_ITEM_MAX_COUNT);
-               m_count += count;
-       }
-       void remove(u16 count)
-       {
-               assert(m_count >= count);
-               m_count -= count;
-       }
+       // Serialization
+       void serialize(std::ostream &os) const;
+       void deSerialize(std::istream &is, IItemDefManager *itemdef);
+       void deSerialize(const std::string &s, IItemDefManager *itemdef);
 
-protected:
-       u16 m_count;
-};
+       // Returns the string used for inventory
+       std::string getItemString() const;
 
-class MaterialItem : public InventoryItem
-{
-public:
-       MaterialItem(u8 content, u16 count):
-               InventoryItem(count)
-       {
-               m_content = content;
-       }
        /*
-               Implementation interface
+               Quantity methods
        */
-       virtual const char* getName() const
-       {
-               return "MaterialItem";
-       }
-       virtual void serialize(std::ostream &os)
-       {
-               //os.imbue(std::locale("C"));
-               os<<getName();
-               os<<" ";
-               os<<(unsigned int)m_content;
-               os<<" ";
-               os<<m_count;
-       }
-       virtual InventoryItem* clone()
-       {
-               return new MaterialItem(m_content, m_count);
-       }
-#ifndef SERVER
-       video::ITexture * getImage()
-       {
-               //TODO
-               //return g_irrlicht->getTexture(content_features(m_content).inventory_texture);
-               return NULL;
-       }
-#endif
-       std::string getText()
-       {
-               std::ostringstream os;
-               os<<m_count;
-               return os.str();
-       }
 
-       virtual bool addableTo(InventoryItem *other)
-       {
-               if(std::string(other->getName()) != "MaterialItem")
-                       return false;
-               MaterialItem *m = (MaterialItem*)other;
-               if(m->getMaterial() != m_content)
-                       return false;
-               return true;
-       }
-       u16 freeSpace()
+       bool empty() const
        {
-               if(m_count > QUANTITY_ITEM_MAX_COUNT)
-                       return 0;
-               return QUANTITY_ITEM_MAX_COUNT - m_count;
+               return count == 0;
        }
-       /*
-               Special methods
-       */
-       u8 getMaterial()
-       {
-               return m_content;
-       }
-private:
-       u8 m_content;
-};
 
-class MapBlockObjectItem : public InventoryItem
-{
-public:
-       MapBlockObjectItem(std::string inventorystring):
-               InventoryItem(1)
-       {
-               m_inventorystring = inventorystring;
-       }
-       
-       /*
-               Implementation interface
-       */
-       virtual const char* getName() const
-       {
-               return "MBOItem";
-       }
-       virtual void serialize(std::ostream &os)
-       {
-               for(;;)
-               {
-                       size_t t = m_inventorystring.find('|');
-                       if(t == std::string::npos)
-                               break;
-                       m_inventorystring[t] = '?';
-               }
-               os<<getName();
-               os<<" ";
-               os<<m_inventorystring;
-               os<<"|";
-       }
-       virtual InventoryItem* clone()
+       void clear()
        {
-               return new MapBlockObjectItem(m_inventorystring);
+               name = "";
+               count = 0;
+               wear = 0;
+               metadata = "";
        }
 
-#ifndef SERVER
-       video::ITexture * getImage();
-#endif
-       std::string getText();
-
-       /*
-               Special methods
-       */
-       std::string getInventoryString()
+       void add(u16 n)
        {
-               return m_inventorystring;
+               count += n;
        }
 
-       MapBlockObject * createObject(v3f pos, f32 player_yaw, f32 player_pitch);
-
-private:
-       std::string m_inventorystring;
-};
-
-/*
-       An item that is used as a mid-product when crafting.
-       Subnames:
-       - Stick
-*/
-class CraftItem : public InventoryItem
-{
-public:
-       CraftItem(std::string subname, u16 count):
-               InventoryItem(count)
-       {
-               m_subname = subname;
-       }
-       /*
-               Implementation interface
-       */
-       virtual const char* getName() const
+       void remove(u16 n)
        {
-               return "CraftItem";
+               assert(count >= n);
+               count -= n;
+               if(count == 0)
+                       clear(); // reset name, wear and metadata too
        }
-       virtual void serialize(std::ostream &os)
-       {
-               os<<getName();
-               os<<" ";
-               os<<m_subname;
-               os<<" ";
-               os<<m_count;
-       }
-       virtual InventoryItem* clone()
-       {
-               return new CraftItem(m_subname, m_count);
-       }
-#ifndef SERVER
-       video::ITexture * getImage()
-       {
-               std::string name;
-
-               if(m_subname == "Stick")
-                       name = "stick.png";
-               else if(m_subname == "lump_of_coal")
-                       name = "lump_of_coal.png";
-               else if(m_subname == "lump_of_iron")
-                       name = "lump_of_iron.png";
-               else
-                       name = "cloud.png";
-               
-               // Get such a texture
-               //return g_irrlicht->getTexture(name);
-               //TODO
-               return NULL;
-       }
-#endif
-       std::string getText()
-       {
-               std::ostringstream os;
-               os<<m_count;
-               return os.str();
-       }
-       virtual bool addableTo(InventoryItem *other)
+
+       // Maximum size of a stack
+       u16 getStackMax(IItemDefManager *itemdef) const
        {
-               if(std::string(other->getName()) != "CraftItem")
-                       return false;
-               CraftItem *m = (CraftItem*)other;
-               if(m->m_subname != m_subname)
-                       return false;
-               return true;
+               s16 max = itemdef->get(name).stack_max;
+               return (max >= 0) ? max : 0;
        }
-       u16 freeSpace()
+
+       // Number of items that can be added to this stack
+       u16 freeSpace(IItemDefManager *itemdef) const
        {
-               if(m_count > QUANTITY_ITEM_MAX_COUNT)
+               u16 max = getStackMax(itemdef);
+               if(count > max)
                        return 0;
-               return QUANTITY_ITEM_MAX_COUNT - m_count;
+               return max - count;
        }
-       /*
-               Special methods
-       */
-       std::string getSubName()
-       {
-               return m_subname;
-       }
-private:
-       std::string m_subname;
-};
 
-class ToolItem : public InventoryItem
-{
-public:
-       ToolItem(std::string toolname, u16 wear):
-               InventoryItem(1)
-       {
-               m_toolname = toolname;
-               m_wear = wear;
-       }
-       /*
-               Implementation interface
-       */
-       virtual const char* getName() const
-       {
-               return "ToolItem";
-       }
-       virtual void serialize(std::ostream &os)
-       {
-               os<<getName();
-               os<<" ";
-               os<<m_toolname;
-               os<<" ";
-               os<<m_wear;
-       }
-       virtual InventoryItem* clone()
+       // Returns false if item is not known and cannot be used
+       bool isKnown(IItemDefManager *itemdef) const
        {
-               return new ToolItem(m_toolname, m_wear);
+               return itemdef->isKnown(name);
        }
-#ifndef SERVER
-       video::ITexture * getImage()
-       {
-               std::string basename;
-               if(m_toolname == "WPick")
-                       basename = "tool_wpick.png";
-               else if(m_toolname == "STPick")
-                       basename = "tool_stpick.png";
-               else if(m_toolname == "MesePick")
-                       basename = "tool_mesepick.png";
-               else
-                       basename = "cloud.png";
-               
-               /*
-                       Calculate a progress value with sane amount of
-                       maximum states
-               */
-               u32 maxprogress = 30;
-               u32 toolprogress = (65535-m_wear)/(65535/maxprogress);
-               
-               float value_f = (float)toolprogress / (float)maxprogress;
-               std::ostringstream os;
-               os<<"[progressbar"<<value_f;
-
-               /*TextureSpec spec;
-               spec.addTid(g_irrlicht->getTextureId(basename));
-               spec.addTid(g_irrlicht->getTextureId(os.str()));
-               return g_irrlicht->getTexture(spec);*/
-               //TODO
-               return NULL;
-
-               /*// Make texture name for the new texture with a progress bar
-               float value_f = (float)toolprogress / (float)maxprogress;
-               std::ostringstream os;
-               os<<basename<<"[[mod:progressbar"<<value_f;
-               return g_irrlicht->getTexture(os.str());*/
-
-               /*// Make texture name for the new texture with a progress bar
-               std::ostringstream os;
-               os<<basename<<"-toolprogress-"<<toolprogress;
-               std::string finalname = os.str();
-
-               float value_f = (float)toolprogress / (float)maxprogress;
-               
-               // Get such a texture
-               TextureMod *mod = new ProgressBarTextureMod(value_f);
-               return g_irrlicht->getTexture(TextureSpec(finalname, basename, mod));*/
-       }
-#endif
-       std::string getText()
-       {
-               return "";
-               
-               /*std::ostringstream os;
-               u16 f = 4;
-               u16 d = 65535/f;
-               u16 i;
-               for(i=0; i<(65535-m_wear)/d; i++)
-                       os<<'X';
-               for(; i<f; i++)
-                       os<<'-';
-               return os.str();*/
-               
-               /*std::ostringstream os;
-               os<<m_toolname;
-               os<<" ";
-               os<<(m_wear/655);
-               return os.str();*/
-       }
-       /*
-               Special methods
-       */
-       std::string getToolName()
+
+       // Returns a pointer to the item definition struct,
+       // or a fallback one (name="unknown") if the item is unknown.
+       const ItemDefinition& getDefinition(
+                       IItemDefManager *itemdef) const
        {
-               return m_toolname;
+               return itemdef->get(name);
        }
-       u16 getWear()
+
+       // Get tool digging properties, or those of the hand if not a tool
+       const ToolDiggingProperties& getToolDiggingProperties(
+                       IItemDefManager *itemdef) const
        {
-               return m_wear;
+               ToolDiggingProperties *prop;
+               prop = itemdef->get(name).tool_digging_properties;
+               if(prop == NULL)
+                       prop = itemdef->get("").tool_digging_properties;
+               assert(prop != NULL);
+               return *prop;
        }
-       // Returns true if weared out
-       bool addWear(u16 add)
+
+       // Wear out (only tools)
+       // Returns true if the item is (was) a tool
+       bool addWear(s32 amount, IItemDefManager *itemdef)
        {
-               if(m_wear >= 65535 - add)
+               if(getDefinition(itemdef).type == ITEM_TOOL)
                {
-                       m_wear = 65535;
+                       if(amount > 65535 - wear)
+                               clear();
+                       else if(amount < -wear)
+                               wear = 0;
+                       else
+                               wear += amount;
                        return true;
                }
                else
                {
-                       m_wear += add;
                        return false;
                }
        }
-private:
-       std::string m_toolname;
-       u16 m_wear;
+
+       // If possible, adds newitem to this item.
+       // If cannot be added at all, returns the item back.
+       // If can be added partly, decremented item is returned back.
+       // If can be added fully, empty item is returned.
+       ItemStack addItem(const ItemStack &newitem,
+                       IItemDefManager *itemdef);
+
+       // Checks whether newitem could be added.
+       // If restitem is non-NULL, it receives the part of newitem that
+       // would be left over after adding.
+       bool itemFits(const ItemStack &newitem,
+                       ItemStack *restitem,  // may be NULL
+                       IItemDefManager *itemdef) const;
+
+       // Takes some items.
+       // If there are not enough, takes as many as it can.
+       // Returns empty item if couldn't take any.
+       ItemStack takeItem(u32 takecount);
+
+       // Similar to takeItem, but keeps this ItemStack intact.
+       ItemStack peekItem(u32 peekcount) const;
+
+       /*
+               Properties
+       */
+       std::string name;
+       u16 count;
+       u16 wear;
+       std::string metadata;
 };
 
 class InventoryList
 {
 public:
-       InventoryList(std::string name, u32 size);
+       InventoryList(std::string name, u32 size, IItemDefManager *itemdef);
        ~InventoryList();
        void clearItems();
-       void serialize(std::ostream &os);
+       void setSize(u32 newsize);
+       void serialize(std::ostream &os) const;
        void deSerialize(std::istream &is);
 
        InventoryList(const InventoryList &other);
        InventoryList & operator = (const InventoryList &other);
 
-       std::string getName();
-       u32 getSize();
+       const std::string &getName() const;
+       u32 getSize() const;
        // Count used slots
-       u32 getUsedSlots();
-       
-       // Get pointer to item
-       InventoryItem * getItem(u32 i);
-       // Returns old item (or NULL). Parameter can be NULL.
-       InventoryItem * changeItem(u32 i, InventoryItem *newitem);
+       u32 getUsedSlots() const;
+       u32 getFreeSlots() const;
+
+       // Get reference to item
+       const ItemStack& getItem(u32 i) const;
+       ItemStack& getItem(u32 i);
+       // Returns old item. Parameter can be an empty item.
+       ItemStack changeItem(u32 i, const ItemStack &newitem);
        // Delete item
        void deleteItem(u32 i);
-       // Adds an item to a suitable place. Returns leftover item.
-       // If all went into the list, returns NULL.
-       InventoryItem * addItem(InventoryItem *newitem);
+
+       // Adds an item to a suitable place. Returns leftover item (possibly empty).
+       ItemStack addItem(const ItemStack &newitem);
 
        // If possible, adds item to given slot.
        // If cannot be added at all, returns the item back.
        // If can be added partly, decremented item is returned back.
-       // If can be added fully, NULL is returned.
-       InventoryItem * addItem(u32 i, InventoryItem *newitem);
+       // If can be added fully, empty item is returned.
+       ItemStack addItem(u32 i, const ItemStack &newitem);
+
+       // Checks whether the item could be added to the given slot
+       // If restitem is non-NULL, it receives the part of newitem that
+       // would be left over after adding.
+       bool itemFits(const u32 i, const ItemStack &newitem,
+                       ItemStack *restitem = NULL) const;
+
+       // Checks whether there is room for a given item
+       bool roomForItem(const ItemStack &item) const;
+
+       // Checks whether the given count of the given item name
+       // exists in this inventory list.
+       bool containsItem(const ItemStack &item) const;
+
+       // Removes the given count of the given item name from
+       // this inventory list. Walks the list in reverse order.
+       // If not as many items exist as requested, removes as
+       // many as possible.
+       // Returns the items that were actually removed.
+       ItemStack removeItem(const ItemStack &item);
 
        // Takes some items from a slot.
        // If there are not enough, takes as many as it can.
-       // Returns NULL if couldn't take any.
-       InventoryItem * takeItem(u32 i, u32 count);
+       // Returns empty item if couldn't take any.
+       ItemStack takeItem(u32 i, u32 takecount);
 
-       // Decrements amount of every material item
-       void decrementMaterials(u16 count);
+       // Similar to takeItem, but keeps the slot intact.
+       ItemStack peekItem(u32 i, u32 peekcount) const;
+
+       // Move an item to a different list (or a different stack in the same list)
+       // count is the maximum number of items to move (0 for everything)
+       void moveItem(u32 i, InventoryList *dest, u32 dest_i, u32 count = 0);
 
-       void print(std::ostream &o);
-       
 private:
-       core::array<InventoryItem*> m_items;
+       std::vector<ItemStack> m_items;
        u32 m_size;
        std::string m_name;
+       IItemDefManager *m_itemdef;
 };
 
 class Inventory
@@ -481,19 +251,19 @@ public:
 
        void clear();
 
-       Inventory();
+       Inventory(IItemDefManager *itemdef);
        Inventory(const Inventory &other);
        Inventory & operator = (const Inventory &other);
        
-       void serialize(std::ostream &os);
+       void serialize(std::ostream &os) const;
        void deSerialize(std::istream &is);
 
        InventoryList * addList(const std::string &name, u32 size);
        InventoryList * getList(const std::string &name);
+       const InventoryList * getList(const std::string &name) const;
        bool deleteList(const std::string &name);
-       // A shorthand for adding items.
-       // Returns NULL if the item was fully added, leftover otherwise.
-       InventoryItem * addItem(const std::string &listname, InventoryItem *newitem)
+       // A shorthand for adding items. Returns leftover item (possibly empty).
+       ItemStack addItem(const std::string &listname, const ItemStack &newitem)
        {
                InventoryList *list = getList(listname);
                if(list == NULL)
@@ -503,71 +273,10 @@ public:
        
 private:
        // -1 if not found
-       s32 getListIndex(const std::string &name);
-
-       core::array<InventoryList*> m_lists;
-};
-
-#define IACTION_MOVE 0
-
-struct InventoryAction
-{
-       static InventoryAction * deSerialize(std::istream &is);
-       
-       virtual u16 getType() const = 0;
-       virtual void serialize(std::ostream &os) = 0;
-       virtual void apply(Inventory *inventory) = 0;
-};
-
-struct IMoveAction : public InventoryAction
-{
-       // count=0 means "everything"
-       u16 count;
-       std::string from_name;
-       s16 from_i;
-       std::string to_name;
-       s16 to_i;
-       
-       IMoveAction()
-       {
-               count = 0;
-               from_i = -1;
-               to_i = -1;
-       }
-       IMoveAction(std::istream &is)
-       {
-               std::string ts;
-
-               std::getline(is, ts, ' ');
-               count = stoi(ts);
-
-               std::getline(is, from_name, ' ');
-
-               std::getline(is, ts, ' ');
-               from_i = stoi(ts);
-
-               std::getline(is, to_name, ' ');
-
-               std::getline(is, ts, ' ');
-               to_i = stoi(ts);
-       }
-
-       u16 getType() const
-       {
-               return IACTION_MOVE;
-       }
-
-       void serialize(std::ostream &os)
-       {
-               os<<"Move ";
-               os<<count<<" ";
-               os<<from_name<<" ";
-               os<<from_i<<" ";
-               os<<to_name<<" ";
-               os<<to_i;
-       }
+       const s32 getListIndex(const std::string &name) const;
 
-       void apply(Inventory *inventory);
+       std::vector<InventoryList*> m_lists;
+       IItemDefManager *m_itemdef;
 };
 
 #endif