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401 lines
11 KiB
C++
401 lines
11 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef CRAFTDEF_HEADER
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#define CRAFTDEF_HEADER
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#include <string>
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#include <iostream>
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#include <vector>
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#include <utility>
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#include "gamedef.h"
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#include "inventory.h"
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/*
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Crafting methods.
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The crafting method depends on the inventory list
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that the crafting input comes from.
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*/
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enum CraftMethod
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{
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// Crafting grid
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CRAFT_METHOD_NORMAL,
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// Cooking something in a furnace
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CRAFT_METHOD_COOKING,
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// Using something as fuel for a furnace
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CRAFT_METHOD_FUEL,
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};
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/*
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Input: The contents of the crafting slots, arranged in matrix form
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*/
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struct CraftInput
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{
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CraftMethod method;
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unsigned int width;
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std::vector<ItemStack> items;
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CraftInput():
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method(CRAFT_METHOD_NORMAL), width(0), items()
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{}
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CraftInput(CraftMethod method_, unsigned int width_,
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const std::vector<ItemStack> &items_):
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method(method_), width(width_), items(items_)
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{}
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std::string dump() const;
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};
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/*
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Output: Result of crafting operation
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*/
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struct CraftOutput
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{
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// Used for normal crafting and cooking, itemstring
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std::string item;
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// Used for cooking (cook time) and fuel (burn time), seconds
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float time;
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CraftOutput():
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item(""), time(0)
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{}
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CraftOutput(std::string item_, float time_):
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item(item_), time(time_)
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{}
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std::string dump() const;
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};
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/*
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A list of replacements. A replacement indicates that a specific
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input item should not be deleted (when crafting) but replaced with
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a different item. Each replacements is a pair (itemstring to remove,
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itemstring to replace with)
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Example: If ("bucket:bucket_water", "bucket:bucket_empty") is a
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replacement pair, the crafting input slot that contained a water
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bucket will contain an empty bucket after crafting.
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Note: replacements only work correctly when stack_max of the item
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to be replaced is 1. It is up to the mod writer to ensure this.
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*/
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struct CraftReplacements
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{
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// List of replacements
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std::vector<std::pair<std::string, std::string> > pairs;
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CraftReplacements():
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pairs()
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{}
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CraftReplacements(std::vector<std::pair<std::string, std::string> > pairs_):
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pairs(pairs_)
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{}
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std::string dump() const;
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void serialize(std::ostream &os) const;
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void deSerialize(std::istream &is);
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};
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/*
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Crafting definition base class
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*/
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class CraftDefinition
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{
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public:
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CraftDefinition(){}
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virtual ~CraftDefinition(){}
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void serialize(std::ostream &os) const;
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static CraftDefinition* deSerialize(std::istream &is);
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// Returns type of crafting definition
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virtual std::string getName() const=0;
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// Checks whether the recipe is applicable
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const=0;
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// Returns the output structure, meaning depends on crafting method
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// The implementation can assume that check(input) returns true
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const=0;
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// the inverse of the above
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const=0;
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// Decreases count of every input item
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const=0;
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virtual std::string dump() const=0;
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protected:
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virtual void serializeBody(std::ostream &os) const=0;
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virtual void deSerializeBody(std::istream &is, int version)=0;
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};
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/*
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A plain-jane (shaped) crafting definition
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Supported crafting method: CRAFT_METHOD_NORMAL.
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Requires the input items to be arranged exactly like in the recipe.
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*/
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class CraftDefinitionShaped: public CraftDefinition
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{
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public:
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CraftDefinitionShaped():
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output(""), width(1), recipe(), replacements()
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{}
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CraftDefinitionShaped(
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const std::string &output_,
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unsigned int width_,
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const std::vector<std::string> &recipe_,
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const CraftReplacements &replacements_):
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output(output_), width(width_), recipe(recipe_), replacements(replacements_)
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{}
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virtual ~CraftDefinitionShaped(){}
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virtual std::string getName() const;
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const;
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
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virtual std::string dump() const;
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protected:
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virtual void serializeBody(std::ostream &os) const;
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virtual void deSerializeBody(std::istream &is, int version);
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private:
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// Output itemstring
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std::string output;
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// Width of recipe
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unsigned int width;
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// Recipe matrix (itemstrings)
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std::vector<std::string> recipe;
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// Replacement items for decrementInput()
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CraftReplacements replacements;
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};
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/*
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A shapeless crafting definition
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Supported crafting method: CRAFT_METHOD_NORMAL.
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Input items can arranged in any way.
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*/
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class CraftDefinitionShapeless: public CraftDefinition
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{
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public:
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CraftDefinitionShapeless():
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output(""), recipe(), replacements()
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{}
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CraftDefinitionShapeless(
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const std::string &output_,
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const std::vector<std::string> &recipe_,
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const CraftReplacements &replacements_):
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output(output_), recipe(recipe_), replacements(replacements_)
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{}
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virtual ~CraftDefinitionShapeless(){}
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virtual std::string getName() const;
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const;
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
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virtual std::string dump() const;
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protected:
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virtual void serializeBody(std::ostream &os) const;
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virtual void deSerializeBody(std::istream &is, int version);
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private:
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// Output itemstring
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std::string output;
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// Recipe list (itemstrings)
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std::vector<std::string> recipe;
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// Replacement items for decrementInput()
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CraftReplacements replacements;
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};
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/*
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Tool repair crafting definition
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Supported crafting method: CRAFT_METHOD_NORMAL.
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Put two damaged tools into the crafting grid, get one tool back.
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There should only be one crafting definition of this type.
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*/
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class CraftDefinitionToolRepair: public CraftDefinition
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{
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public:
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CraftDefinitionToolRepair():
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additional_wear(0)
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{}
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CraftDefinitionToolRepair(float additional_wear_):
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additional_wear(additional_wear_)
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{}
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virtual ~CraftDefinitionToolRepair(){}
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virtual std::string getName() const;
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const;
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
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virtual std::string dump() const;
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protected:
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virtual void serializeBody(std::ostream &os) const;
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virtual void deSerializeBody(std::istream &is, int version);
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private:
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// This is a constant that is added to the wear of the result.
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// May be positive or negative, allowed range [-1,1].
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// 1 = new tool is completely broken
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// 0 = simply add remaining uses of both input tools
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// -1 = new tool is completely pristine
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float additional_wear;
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};
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/*
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A cooking (in furnace) definition
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Supported crafting method: CRAFT_METHOD_COOKING.
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*/
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class CraftDefinitionCooking: public CraftDefinition
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{
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public:
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CraftDefinitionCooking():
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output(""), recipe(""), cooktime()
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{}
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CraftDefinitionCooking(
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const std::string &output_,
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const std::string &recipe_,
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float cooktime_,
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const CraftReplacements &replacements_):
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output(output_), recipe(recipe_), cooktime(cooktime_), replacements(replacements_)
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{}
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virtual ~CraftDefinitionCooking(){}
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virtual std::string getName() const;
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const;
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
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virtual std::string dump() const;
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protected:
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virtual void serializeBody(std::ostream &os) const;
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virtual void deSerializeBody(std::istream &is, int version);
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private:
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// Output itemstring
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std::string output;
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// Recipe itemstring
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std::string recipe;
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// Time in seconds
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float cooktime;
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// Replacement items for decrementInput()
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CraftReplacements replacements;
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};
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/*
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A fuel (for furnace) definition
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Supported crafting method: CRAFT_METHOD_FUEL.
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*/
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class CraftDefinitionFuel: public CraftDefinition
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{
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public:
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CraftDefinitionFuel():
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recipe(""), burntime()
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{}
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CraftDefinitionFuel(std::string recipe_,
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float burntime_,
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const CraftReplacements &replacements_):
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recipe(recipe_), burntime(burntime_), replacements(replacements_)
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{}
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virtual ~CraftDefinitionFuel(){}
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virtual std::string getName() const;
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virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
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virtual CraftInput getInput(const CraftOutput &output, IGameDef *gamedef) const;
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virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
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virtual std::string dump() const;
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protected:
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virtual void serializeBody(std::ostream &os) const;
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virtual void deSerializeBody(std::istream &is, int version);
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private:
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// Recipe itemstring
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std::string recipe;
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// Time in seconds
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float burntime;
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// Replacement items for decrementInput()
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CraftReplacements replacements;
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};
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/*
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Crafting definition manager
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*/
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class ICraftDefManager
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{
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public:
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ICraftDefManager(){}
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virtual ~ICraftDefManager(){}
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// The main crafting function
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virtual bool getCraftResult(CraftInput &input, CraftOutput &output,
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bool decrementInput, IGameDef *gamedef) const=0;
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virtual bool getCraftRecipe(CraftInput &input, CraftOutput &output,
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IGameDef *gamedef) const=0;
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virtual std::vector<CraftDefinition*> getCraftRecipes(CraftOutput &output,
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IGameDef *gamedef) const=0;
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// Print crafting recipes for debugging
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virtual std::string dump() const=0;
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virtual void serialize(std::ostream &os) const=0;
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};
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class IWritableCraftDefManager : public ICraftDefManager
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{
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public:
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IWritableCraftDefManager(){}
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virtual ~IWritableCraftDefManager(){}
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// The main crafting function
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virtual bool getCraftResult(CraftInput &input, CraftOutput &output,
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bool decrementInput, IGameDef *gamedef) const=0;
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virtual bool getCraftRecipe(CraftInput &input, CraftOutput &output,
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IGameDef *gamedef) const=0;
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virtual std::vector<CraftDefinition*> getCraftRecipes(CraftOutput &output,
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IGameDef *gamedef) const=0;
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// Print crafting recipes for debugging
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virtual std::string dump() const=0;
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// Add a crafting definition.
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// After calling this, the pointer belongs to the manager.
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virtual void registerCraft(CraftDefinition *def)=0;
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// Delete all crafting definitions
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virtual void clear()=0;
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virtual void serialize(std::ostream &os) const=0;
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virtual void deSerialize(std::istream &is)=0;
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};
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IWritableCraftDefManager* createCraftDefManager();
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#endif
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