minetest/src/inventory.cpp

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/*
Minetest-c55
Copyright (C) 2010 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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
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/*
(c) 2010 Perttu Ahola <celeron55@gmail.com>
*/
#include "inventory.h"
#include "serialization.h"
#include "utility.h"
#include "debug.h"
#include <sstream>
#include "main.h"
#include "serverobject.h"
#include "content_mapnode.h"
#include "content_inventory.h"
#include "content_sao.h"
#include "player.h"
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/*
InventoryItem
*/
InventoryItem::InventoryItem(u16 count)
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{
m_count = count;
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}
InventoryItem::~InventoryItem()
{
}
content_t content_translate_from_19_to_internal(content_t c_from)
{
for(u32 i=0; i<sizeof(trans_table_19)/sizeof(trans_table_19[0]); i++)
{
if(trans_table_19[i][1] == c_from)
{
return trans_table_19[i][0];
}
}
return c_from;
}
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InventoryItem* InventoryItem::deSerialize(std::istream &is)
{
DSTACK(__FUNCTION_NAME);
//is.imbue(std::locale("C"));
// Read name
std::string name;
std::getline(is, name, ' ');
if(name == "MaterialItem")
{
// u16 reads directly as a number (u8 doesn't)
u16 material;
is>>material;
u16 count;
is>>count;
// Convert old materials
if(material <= 0xff)
{
material = content_translate_from_19_to_internal(material);
}
if(material > MAX_CONTENT)
throw SerializationError("Too large material number");
return new MaterialItem(material, count);
}
else if(name == "MaterialItem2")
{
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u16 material;
is>>material;
u16 count;
is>>count;
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if(material > MAX_CONTENT)
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throw SerializationError("Too large material number");
return new MaterialItem(material, count);
}
else if(name == "MBOItem")
{
std::string inventorystring;
std::getline(is, inventorystring, '|');
return new MapBlockObjectItem(inventorystring);
}
else if(name == "CraftItem")
{
std::string subname;
std::getline(is, subname, ' ');
u16 count;
is>>count;
return new CraftItem(subname, count);
}
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else if(name == "ToolItem")
{
std::string toolname;
std::getline(is, toolname, ' ');
u16 wear;
is>>wear;
return new ToolItem(toolname, wear);
}
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else
{
dstream<<"Unknown InventoryItem name=\""<<name<<"\""<<std::endl;
throw SerializationError("Unknown InventoryItem name");
}
}
ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
{
/*
Create an ItemSAO
*/
// Get item string
std::ostringstream os(std::ios_base::binary);
serialize(os);
// Create object
ServerActiveObject *obj = new ItemSAO(env, 0, pos, os.str());
return obj;
}
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/*
MaterialItem
*/
bool MaterialItem::isCookable()
{
return item_material_is_cookable(m_content);
}
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InventoryItem *MaterialItem::createCookResult()
{
return item_material_create_cook_result(m_content);
}
/*
CraftItem
*/
#ifndef SERVER
video::ITexture * CraftItem::getImage()
{
if(g_texturesource == NULL)
return NULL;
std::string name = item_craft_get_image_name(m_subname);
// Get such a texture
return g_texturesource->getTextureRaw(name);
}
#endif
ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
{
// Special cases
ServerActiveObject *obj = item_craft_create_object(m_subname, env, id, pos);
if(obj)
return obj;
// Default
return InventoryItem::createSAO(env, id, pos);
}
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u16 CraftItem::getDropCount()
{
// Special cases
s16 dc = item_craft_get_drop_count(m_subname);
if(dc != -1)
return dc;
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// Default
return InventoryItem::getDropCount();
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}
bool CraftItem::isCookable()
{
return item_craft_is_cookable(m_subname);
}
InventoryItem *CraftItem::createCookResult()
{
return item_craft_create_cook_result(m_subname);
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}
bool CraftItem::use(ServerEnvironment *env, Player *player)
{
if(item_craft_is_eatable(m_subname))
{
s16 hp_change = item_craft_eat_hp_change(m_subname);
if(player->hp + hp_change > 20)
player->hp = 20;
else
player->hp += hp_change;
return true;
}
return false;
}
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/*
MapBlockObjectItem DEPRECATED
TODO: Remove
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*/
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#ifndef SERVER
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video::ITexture * MapBlockObjectItem::getImage()
{
if(m_inventorystring.substr(0,3) == "Rat")
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return g_texturesource->getTextureRaw("rat.png");
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if(m_inventorystring.substr(0,4) == "Sign")
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return g_texturesource->getTextureRaw("sign.png");
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return NULL;
}
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#endif
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std::string MapBlockObjectItem::getText()
{
if(m_inventorystring.substr(0,3) == "Rat")
return "";
if(m_inventorystring.substr(0,4) == "Sign")
return "";
return "obj";
}
MapBlockObject * MapBlockObjectItem::createObject
(v3f pos, f32 player_yaw, f32 player_pitch)
{
std::istringstream is(m_inventorystring);
std::string name;
std::getline(is, name, ' ');
if(name == "None")
{
return NULL;
}
else if(name == "Sign")
{
std::string text;
std::getline(is, text, '|');
SignObject *obj = new SignObject(NULL, -1, pos);
obj->setText(text);
obj->setYaw(-player_yaw);
return obj;
}
else if(name == "Rat")
{
RatObject *obj = new RatObject(NULL, -1, pos);
return obj;
}
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else if(name == "ItemObj")
{
/*
Now we are an inventory item containing the serialization
string of an object that contains the serialization
string of an inventory item. Fuck this.
*/
//assert(0);
dstream<<__FUNCTION_NAME<<": WARNING: Ignoring ItemObj "
<<"because an item-object should never be inside "
<<"an object-item."<<std::endl;
return NULL;
}
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else
{
return NULL;
}
}
/*
Inventory
*/
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InventoryList::InventoryList(std::string name, u32 size)
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{
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m_name = name;
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m_size = size;
clearItems();
//m_dirty = false;
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}
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InventoryList::~InventoryList()
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{
for(u32 i=0; i<m_items.size(); i++)
{
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if(m_items[i])
delete m_items[i];
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}
}
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void InventoryList::clearItems()
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{
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for(u32 i=0; i<m_items.size(); i++)
{
if(m_items[i])
delete m_items[i];
}
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m_items.clear();
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for(u32 i=0; i<m_size; i++)
{
m_items.push_back(NULL);
}
//setDirty(true);
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}
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void InventoryList::serialize(std::ostream &os)
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{
//os.imbue(std::locale("C"));
for(u32 i=0; i<m_items.size(); i++)
{
InventoryItem *item = m_items[i];
if(item != NULL)
{
os<<"Item ";
item->serialize(os);
}
else
{
os<<"Empty";
}
os<<"\n";
}
os<<"EndInventoryList\n";
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}
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void InventoryList::deSerialize(std::istream &is)
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{
//is.imbue(std::locale("C"));
clearItems();
u32 item_i = 0;
for(;;)
{
std::string line;
std::getline(is, line, '\n');
std::istringstream iss(line);
//iss.imbue(std::locale("C"));
std::string name;
std::getline(iss, name, ' ');
if(name == "EndInventoryList")
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{
break;
}
// This is a temporary backwards compatibility fix
else if(name == "end")
{
break;
}
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else if(name == "Item")
{
if(item_i > getSize() - 1)
throw SerializationError("too many items");
InventoryItem *item = InventoryItem::deSerialize(iss);
m_items[item_i++] = item;
}
else if(name == "Empty")
{
if(item_i > getSize() - 1)
throw SerializationError("too many items");
m_items[item_i++] = NULL;
}
else
{
throw SerializationError("Unknown inventory identifier");
}
}
}
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InventoryList::InventoryList(const InventoryList &other)
{
/*
Do this so that the items get cloned. Otherwise the pointers
in the array will just get copied.
*/
*this = other;
}
InventoryList & InventoryList::operator = (const InventoryList &other)
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{
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m_name = other.m_name;
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m_size = other.m_size;
clearItems();
for(u32 i=0; i<other.m_items.size(); i++)
{
InventoryItem *item = other.m_items[i];
if(item != NULL)
{
m_items[i] = item->clone();
}
}
//setDirty(true);
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return *this;
}
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std::string InventoryList::getName()
{
return m_name;
}
u32 InventoryList::getSize()
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{
return m_items.size();
}
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u32 InventoryList::getUsedSlots()
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{
u32 num = 0;
for(u32 i=0; i<m_items.size(); i++)
{
InventoryItem *item = m_items[i];
if(item != NULL)
num++;
}
return num;
}
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u32 InventoryList::getFreeSlots()
{
return getSize() - getUsedSlots();
}
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InventoryItem * InventoryList::getItem(u32 i)
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{
if(i > m_items.size() - 1)
return NULL;
return m_items[i];
}
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InventoryItem * InventoryList::changeItem(u32 i, InventoryItem *newitem)
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{
assert(i < m_items.size());
InventoryItem *olditem = m_items[i];
m_items[i] = newitem;
//setDirty(true);
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return olditem;
}
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void InventoryList::deleteItem(u32 i)
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{
assert(i < m_items.size());
InventoryItem *item = changeItem(i, NULL);
if(item)
delete item;
}
InventoryItem * InventoryList::addItem(InventoryItem *newitem)
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{
if(newitem == NULL)
return NULL;
/*
First try to find if it could be added to some existing items
*/
for(u32 i=0; i<m_items.size(); i++)
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{
// Ignore empty slots
if(m_items[i] == NULL)
continue;
// Try adding
newitem = addItem(i, newitem);
if(newitem == NULL)
return NULL; // All was eaten
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}
/*
Then try to add it to empty slots
*/
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for(u32 i=0; i<m_items.size(); i++)
{
// Ignore unempty slots
if(m_items[i] != NULL)
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continue;
// Try adding
newitem = addItem(i, newitem);
if(newitem == NULL)
return NULL; // All was eaten
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}
// Return leftover
return newitem;
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}
InventoryItem * InventoryList::addItem(u32 i, InventoryItem *newitem)
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{
if(newitem == NULL)
return NULL;
//setDirty(true);
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// If it is an empty position, it's an easy job.
InventoryItem *to_item = getItem(i);
if(to_item == NULL)
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{
m_items[i] = newitem;
return NULL;
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}
// If not addable, return the item
if(newitem->addableTo(to_item) == false)
return newitem;
// If the item fits fully in the slot, add counter and delete it
if(newitem->getCount() <= to_item->freeSpace())
{
to_item->add(newitem->getCount());
delete newitem;
return NULL;
}
// Else the item does not fit fully. Add all that fits and return
// the rest.
else
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{
u16 freespace = to_item->freeSpace();
to_item->add(freespace);
newitem->remove(freespace);
return newitem;
}
}
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bool InventoryList::itemFits(u32 i, InventoryItem *newitem)
{
// If it is an empty position, it's an easy job.
InventoryItem *to_item = getItem(i);
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if(to_item == NULL)
{
return true;
}
// If not addable, return the item
if(newitem->addableTo(to_item) == false)
return false;
// If the item fits fully in the slot, add counter and delete it
if(newitem->getCount() <= to_item->freeSpace())
{
return true;
}
return false;
}
InventoryItem * InventoryList::takeItem(u32 i, u32 count)
{
if(count == 0)
return NULL;
//setDirty(true);
InventoryItem *item = getItem(i);
// If it is an empty position, return NULL
if(item == NULL)
return NULL;
if(count >= item->getCount())
{
// Get the item by swapping NULL to its place
return changeItem(i, NULL);
}
else
{
InventoryItem *item2 = item->clone();
item->remove(count);
item2->setCount(count);
return item2;
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}
return false;
}
void InventoryList::decrementMaterials(u16 count)
{
for(u32 i=0; i<m_items.size(); i++)
{
InventoryItem *item = takeItem(i, count);
if(item)
delete item;
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}
}
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void InventoryList::print(std::ostream &o)
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{
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o<<"InventoryList:"<<std::endl;
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for(u32 i=0; i<m_items.size(); i++)
{
InventoryItem *item = m_items[i];
if(item != NULL)
{
o<<i<<": ";
item->serialize(o);
o<<"\n";
}
}
}
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/*
Inventory
*/
Inventory::~Inventory()
{
clear();
}
void Inventory::clear()
{
for(u32 i=0; i<m_lists.size(); i++)
{
delete m_lists[i];
}
m_lists.clear();
}
Inventory::Inventory()
{
}
Inventory::Inventory(const Inventory &other)
{
*this = other;
}
Inventory & Inventory::operator = (const Inventory &other)
{
clear();
for(u32 i=0; i<other.m_lists.size(); i++)
{
m_lists.push_back(new InventoryList(*other.m_lists[i]));
}
return *this;
}
void Inventory::serialize(std::ostream &os)
{
for(u32 i=0; i<m_lists.size(); i++)
{
InventoryList *list = m_lists[i];
os<<"List "<<list->getName()<<" "<<list->getSize()<<"\n";
list->serialize(os);
}
os<<"EndInventory\n";
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}
void Inventory::deSerialize(std::istream &is)
{
clear();
for(;;)
{
std::string line;
std::getline(is, line, '\n');
std::istringstream iss(line);
std::string name;
std::getline(iss, name, ' ');
if(name == "EndInventory")
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{
break;
}
// This is a temporary backwards compatibility fix
else if(name == "end")
{
break;
}
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else if(name == "List")
{
std::string listname;
u32 listsize;
std::getline(iss, listname, ' ');
iss>>listsize;
InventoryList *list = new InventoryList(listname, listsize);
list->deSerialize(is);
m_lists.push_back(list);
}
else
{
throw SerializationError("Unknown inventory identifier");
}
}
}
InventoryList * Inventory::addList(const std::string &name, u32 size)
{
s32 i = getListIndex(name);
if(i != -1)
{
if(m_lists[i]->getSize() != size)
{
delete m_lists[i];
m_lists[i] = new InventoryList(name, size);
}
return m_lists[i];
}
else
{
m_lists.push_back(new InventoryList(name, size));
return m_lists.getLast();
}
}
InventoryList * Inventory::getList(const std::string &name)
{
s32 i = getListIndex(name);
if(i == -1)
return NULL;
return m_lists[i];
}
s32 Inventory::getListIndex(const std::string &name)
{
for(u32 i=0; i<m_lists.size(); i++)
{
if(m_lists[i]->getName() == name)
return i;
}
return -1;
}
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/*
InventoryAction
*/
InventoryAction * InventoryAction::deSerialize(std::istream &is)
{
std::string type;
std::getline(is, type, ' ');
InventoryAction *a = NULL;
if(type == "Move")
{
a = new IMoveAction(is);
}
return a;
}
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void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr)
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{
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#if 1
/*dstream<<"from_inv="<<from_inv<<" to_inv="<<to_inv<<std::endl;
dstream<<"from_list="<<from_list<<" to_list="<<to_list<<std::endl;
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dstream<<"from_i="<<from_i<<" to_i="<<to_i<<std::endl;*/
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Inventory *inv_from = mgr->getInventory(c, from_inv);
Inventory *inv_to = mgr->getInventory(c, to_inv);
if(!inv_from || !inv_to)
{
dstream<<__FUNCTION_NAME<<": Operation not allowed "
<<"(inventories not found)"<<std::endl;
return;
}
InventoryList *list_from = inv_from->getList(from_list);
InventoryList *list_to = inv_to->getList(to_list);
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/*dstream<<"list_from="<<list_from<<" list_to="<<list_to
<<std::endl;*/
/*if(list_from)
dstream<<" list_from->getItem(from_i)="<<list_from->getItem(from_i)
<<std::endl;
if(list_to)
dstream<<" list_to->getItem(to_i)="<<list_to->getItem(to_i)
<<std::endl;*/
/*
If a list doesn't exist or the source item doesn't exist
*/
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if(!list_from || !list_to)
{
dstream<<__FUNCTION_NAME<<": Operation not allowed "
<<"(a list doesn't exist)"
<<std::endl;
return;
}
if(list_from->getItem(from_i) == NULL)
{
dstream<<__FUNCTION_NAME<<": Operation not allowed "
<<"(the source item doesn't exist)"
<<std::endl;
return;
}
/*
If the source and the destination slots are the same
*/
if(inv_from == inv_to && list_from == list_to && from_i == to_i)
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{
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dstream<<__FUNCTION_NAME<<": Operation not allowed "
<<"(source and the destination slots are the same)"<<std::endl;
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return;
}
// Take item from source list
InventoryItem *item1 = NULL;
if(count == 0)
item1 = list_from->changeItem(from_i, NULL);
else
item1 = list_from->takeItem(from_i, count);
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// Try to add the item to destination list
InventoryItem *olditem = item1;
item1 = list_to->addItem(to_i, item1);
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// If something is returned, the item was not fully added
if(item1 != NULL)
{
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// If olditem is returned, nothing was added.
bool nothing_added = (item1 == olditem);
// If something else is returned, part of the item was left unadded.
// Add the other part back to the source item
list_from->addItem(from_i, item1);
// If olditem is returned, nothing was added.
// Swap the items
if(nothing_added)
{
// Take item from source list
item1 = list_from->changeItem(from_i, NULL);
// Adding was not possible, swap the items.
InventoryItem *item2 = list_to->changeItem(to_i, item1);
// Put item from destination list to the source list
list_from->changeItem(from_i, item2);
}
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}
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mgr->inventoryModified(c, from_inv);
if(from_inv != to_inv)
mgr->inventoryModified(c, to_inv);
#endif
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}
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/*
Craft checking system
*/
bool ItemSpec::checkItem(InventoryItem *item)
{
if(type == ITEM_NONE)
{
// Has to be no item
if(item != NULL)
return false;
return true;
}
// There should be an item
if(item == NULL)
return false;
std::string itemname = item->getName();
if(type == ITEM_MATERIAL)
{
if(itemname != "MaterialItem")
return false;
MaterialItem *mitem = (MaterialItem*)item;
if(mitem->getMaterial() != num)
return false;
}
else if(type == ITEM_CRAFT)
{
if(itemname != "CraftItem")
return false;
CraftItem *mitem = (CraftItem*)item;
if(mitem->getSubName() != name)
return false;
}
else if(type == ITEM_TOOL)
{
// Not supported yet
assert(0);
}
else if(type == ITEM_MBO)
{
// Not supported yet
assert(0);
}
else
{
// Not supported yet
assert(0);
}
return true;
}
bool checkItemCombination(InventoryItem **items, ItemSpec *specs)
{
u16 items_min_x = 100;
u16 items_max_x = 100;
u16 items_min_y = 100;
u16 items_max_y = 100;
for(u16 y=0; y<3; y++)
for(u16 x=0; x<3; x++)
{
if(items[y*3 + x] == NULL)
continue;
if(items_min_x == 100 || x < items_min_x)
items_min_x = x;
if(items_min_y == 100 || y < items_min_y)
items_min_y = y;
if(items_max_x == 100 || x > items_max_x)
items_max_x = x;
if(items_max_y == 100 || y > items_max_y)
items_max_y = y;
}
// No items at all, just return false
if(items_min_x == 100)
return false;
u16 items_w = items_max_x - items_min_x + 1;
u16 items_h = items_max_y - items_min_y + 1;
u16 specs_min_x = 100;
u16 specs_max_x = 100;
u16 specs_min_y = 100;
u16 specs_max_y = 100;
for(u16 y=0; y<3; y++)
for(u16 x=0; x<3; x++)
{
if(specs[y*3 + x].type == ITEM_NONE)
continue;
if(specs_min_x == 100 || x < specs_min_x)
specs_min_x = x;
if(specs_min_y == 100 || y < specs_min_y)
specs_min_y = y;
if(specs_max_x == 100 || x > specs_max_x)
specs_max_x = x;
if(specs_max_y == 100 || y > specs_max_y)
specs_max_y = y;
}
// No specs at all, just return false
if(specs_min_x == 100)
return false;
u16 specs_w = specs_max_x - specs_min_x + 1;
u16 specs_h = specs_max_y - specs_min_y + 1;
// Different sizes
if(items_w != specs_w || items_h != specs_h)
return false;
for(u16 y=0; y<specs_h; y++)
for(u16 x=0; x<specs_w; x++)
{
u16 items_x = items_min_x + x;
u16 items_y = items_min_y + y;
u16 specs_x = specs_min_x + x;
u16 specs_y = specs_min_y + y;
InventoryItem *item = items[items_y * 3 + items_x];
ItemSpec &spec = specs[specs_y * 3 + specs_x];
if(spec.checkItem(item) == false)
return false;
}
return true;
}
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//END