minetest/src/inventorymanager.cpp

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/*
Minetest-c55
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
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.
*/
#include "inventorymanager.h"
#include "serverremoteplayer.h"
#include "log.h"
#include "mapblock.h" // getNodeBlockPos
/*
InventoryManager
*/
// Wrapper for old code
Inventory* InventoryManager::getInventory(InventoryContext *c, std::string id)
{
if(id == "current_player")
{
assert(c->current_player);
InventoryLocation loc;
loc.setPlayer(c->current_player->getName());
return getInventory(loc);
}
Strfnd fn(id);
std::string id0 = fn.next(":");
if(id0 == "nodemeta")
{
v3s16 p;
p.X = stoi(fn.next(","));
p.Y = stoi(fn.next(","));
p.Z = stoi(fn.next(","));
InventoryLocation loc;
loc.setNodeMeta(p);
return getInventory(loc);
}
errorstream<<__FUNCTION_NAME<<": unknown id "<<id<<std::endl;
return NULL;
}
// Wrapper for old code
void InventoryManager::inventoryModified(InventoryContext *c, std::string id)
{
if(id == "current_player")
{
assert(c->current_player);
InventoryLocation loc;
loc.setPlayer(c->current_player->getName());
setInventoryModified(loc);
return;
}
Strfnd fn(id);
std::string id0 = fn.next(":");
if(id0 == "nodemeta")
{
v3s16 p;
p.X = stoi(fn.next(","));
p.Y = stoi(fn.next(","));
p.Z = stoi(fn.next(","));
v3s16 blockpos = getNodeBlockPos(p);
InventoryLocation loc;
loc.setNodeMeta(p);
setInventoryModified(loc);
return;
}
errorstream<<__FUNCTION_NAME<<": unknown id "<<id<<std::endl;
}
/*
InventoryAction
*/
InventoryAction * InventoryAction::deSerialize(std::istream &is)
{
std::string type;
std::getline(is, type, ' ');
InventoryAction *a = NULL;
if(type == "Move")
{
a = new IMoveAction(is);
}
else if(type == "Drop")
{
a = new IDropAction(is);
}
return a;
}
static std::string describeC(const struct InventoryContext *c)
{
if(c->current_player == NULL)
return "current_player=NULL";
else
return std::string("current_player=") + c->current_player->getName();
}
IMoveAction::IMoveAction(std::istream &is)
{
std::string ts;
std::getline(is, ts, ' ');
count = stoi(ts);
std::getline(is, from_inv, ' ');
std::getline(is, from_list, ' ');
std::getline(is, ts, ' ');
from_i = stoi(ts);
std::getline(is, to_inv, ' ');
std::getline(is, to_list, ' ');
std::getline(is, ts, ' ');
to_i = stoi(ts);
}
void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr,
ServerEnvironment *env)
{
Inventory *inv_from = mgr->getInventory(c, from_inv);
Inventory *inv_to = mgr->getInventory(c, to_inv);
if(!inv_from){
infostream<<"IMoveAction::apply(): FAIL: source inventory not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", to_inv=\""<<to_inv<<"\""<<std::endl;
return;
}
if(!inv_to){
infostream<<"IMoveAction::apply(): FAIL: destination inventory not found: "
"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", to_inv=\""<<to_inv<<"\""<<std::endl;
return;
}
InventoryList *list_from = inv_from->getList(from_list);
InventoryList *list_to = inv_to->getList(to_list);
/*
If a list doesn't exist or the source item doesn't exist
*/
if(!list_from){
infostream<<"IMoveAction::apply(): FAIL: source list not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", from_list=\""<<from_list<<"\""<<std::endl;
return;
}
if(!list_to){
infostream<<"IMoveAction::apply(): FAIL: destination list not found: "
<<"context=["<<describeC(c)<<"], to_inv=\""<<to_inv<<"\""
<<", to_list=\""<<to_list<<"\""<<std::endl;
return;
}
if(list_from->getItem(from_i) == NULL)
{
infostream<<"IMoveAction::apply(): FAIL: source item not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", from_list=\""<<from_list<<"\""
<<" from_i="<<from_i<<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)
{
infostream<<"IMoveAction::apply(): FAIL: source and destination slots "
<<"are the same: inv=\""<<from_inv<<"\" list=\""<<from_list
<<"\" i="<<from_i<<std::endl;
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);
// Try to add the item to destination list
InventoryItem *olditem = item1;
item1 = list_to->addItem(to_i, item1);
// If something is returned, the item was not fully added
if(item1 != NULL)
{
// 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);
}
}
mgr->inventoryModified(c, from_inv);
if(from_inv != to_inv)
mgr->inventoryModified(c, to_inv);
infostream<<"IMoveAction::apply(): moved at "
<<"["<<describeC(c)<<"]"
<<" from inv=\""<<from_inv<<"\""
<<" list=\""<<from_list<<"\""
<<" i="<<from_i
<<" to inv=\""<<to_inv<<"\""
<<" list=\""<<to_list<<"\""
<<" i="<<to_i
<<std::endl;
}
IDropAction::IDropAction(std::istream &is)
{
std::string ts;
std::getline(is, ts, ' ');
count = stoi(ts);
std::getline(is, from_inv, ' ');
std::getline(is, from_list, ' ');
std::getline(is, ts, ' ');
from_i = stoi(ts);
}
void IDropAction::apply(InventoryContext *c, InventoryManager *mgr,
ServerEnvironment *env)
{
if(c->current_player == NULL){
infostream<<"IDropAction::apply(): FAIL: current_player is NULL"<<std::endl;
return;
}
// Do NOT cast directly to ServerActiveObject*, it breaks
// because of multiple inheritance.
ServerActiveObject *dropper =
static_cast<ServerActiveObject*>(
static_cast<ServerRemotePlayer*>(
c->current_player
));
Inventory *inv_from = mgr->getInventory(c, from_inv);
if(!inv_from){
infostream<<"IDropAction::apply(): FAIL: source inventory not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""<<std::endl;
return;
}
InventoryList *list_from = inv_from->getList(from_list);
/*
If a list doesn't exist or the source item doesn't exist
*/
if(!list_from){
infostream<<"IDropAction::apply(): FAIL: source list not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", from_list=\""<<from_list<<"\""<<std::endl;
return;
}
InventoryItem *item = list_from->getItem(from_i);
if(item == NULL)
{
infostream<<"IDropAction::apply(): FAIL: source item not found: "
<<"context=["<<describeC(c)<<"], from_inv=\""<<from_inv<<"\""
<<", from_list=\""<<from_list<<"\""
<<" from_i="<<from_i<<std::endl;
return;
}
v3f pos = dropper->getBasePosition();
pos.Y += 0.5*BS;
s16 count2 = count;
if(count2 == 0)
count2 = -1;
/*
Drop the item
*/
bool remove = item->dropOrPlace(env, dropper, pos, false, count2);
if(remove)
list_from->deleteItem(from_i);
mgr->inventoryModified(c, from_inv);
infostream<<"IDropAction::apply(): dropped "
<<"["<<describeC(c)<<"]"
<<" from inv=\""<<from_inv<<"\""
<<" list=\""<<from_list<<"\""
<<" i="<<from_i
<<std::endl;
}
/*
Craft checking system
*/
bool ItemSpec::checkItem(const InventoryItem *item) const
{
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(num != 65535){
if(mitem->getMaterial() != num)
return false;
} else {
if(mitem->getNodeName() != name)
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 const * const *items, const 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;
const InventoryItem *item = items[items_y * 3 + items_x];
const ItemSpec &spec = specs[specs_y * 3 + specs_x];
if(spec.checkItem(item) == false)
return false;
}
return true;
}
bool checkItemCombination(const InventoryItem * const * items,
const InventoryItem * const * 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] == NULL)
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;
const InventoryItem *item = items[items_y * 3 + items_x];
const InventoryItem *spec = specs[specs_y * 3 + specs_x];
if(item == NULL && spec == NULL)
continue;
if(item == NULL && spec != NULL)
return false;
if(item != NULL && spec == NULL)
return false;
if(!spec->isSubsetOf(item))
return false;
}
return true;
}