src/craftdef.cpp


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/*
Minetest
Copyright (C) 2013 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 Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser 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 "craftdef.h"

#include "irrlichttypes.h"
#include "log.h"
#include <sstream>
#include <set>
#include <algorithm>
#include "gamedef.h"
#include "inventory.h"
#include "util/serialize.h"
#include "strfnd.h"

// Check if input matches recipe
// Takes recipe groups into account
static bool inputItemMatchesRecipe(const std::string &inp_name,
		const std::string &rec_name, IItemDefManager *idef)
{
	// Exact name
	if(inp_name == rec_name)
		return true;

	// Group
	if(rec_name.substr(0,6) == "group:" && idef->isKnown(inp_name)){
		const struct ItemDefinition &def = idef->get(inp_name);
		Strfnd f(rec_name.substr(6));
		bool all_groups_match = true;
		do{
			std::string check_group = f.next(",");
			if(itemgroup_get(def.groups, check_group) == 0){
				all_groups_match = false;
				break;
			}
		}while(!f.atend());
		if(all_groups_match)
			return true;
	}

	// Didn't match
	return false;
}

// Deserialize an itemstring then return the name of the item
static std::string craftGetItemName(const std::string &itemstring, IGameDef *gamedef)
{
	ItemStack item;
	item.deSerialize(itemstring, gamedef->idef());
	return item.name;
}

// (mapcar craftGetItemName itemstrings)
static std::vector<std::string> craftGetItemNames(
		const std::vector<std::string> &itemstrings, IGameDef *gamedef)
{
	std::vector<std::string> result;
	for(std::vector<std::string>::const_iterator
			i = itemstrings.begin();
			i != itemstrings.end(); i++)
	{
		result.push_back(craftGetItemName(*i, gamedef));
	}
	return result;
}

// Get name of each item, and return them as a new list.
static std::vector<std::string> craftGetItemNames(
		const std::vector<ItemStack> &items, IGameDef *gamedef)
{
	std::vector<std::string> result;
	for(std::vector<ItemStack>::const_iterator
			i = items.begin();
			i != items.end(); i++)
	{
		result.push_back(i->name);
	}
	return result;
}

// convert a list of item names, to ItemStacks.
static std::vector<ItemStack> craftGetItems(
		const std::vector<std::string> &items, IGameDef *gamedef)
{
	std::vector<ItemStack> result;
	for(std::vector<std::string>::const_iterator
			i = items.begin();
			i != items.end(); i++)
	{
		result.push_back(ItemStack(std::string(*i),(u16)1,(u16)0,"",gamedef->getItemDefManager()));
	}
	return result;
}

// Compute bounding rectangle given a matrix of items
// Returns false if every item is ""
static bool craftGetBounds(const std::vector<std::string> &items, unsigned int width,
		unsigned int &min_x, unsigned int &max_x,
		unsigned int &min_y, unsigned int &max_y)
{
	bool success = false;
	unsigned int x = 0;
	unsigned int y = 0;