minetest/src/craftdef.h

377 lines
10 KiB
C++

/*
Minetest-c55
Copyright (C) 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.
*/
#ifndef CRAFTDEF_HEADER
#define CRAFTDEF_HEADER
#include <string>
#include <iostream>
#include <vector>
#include <utility>
#include "gamedef.h"
#include "inventory.h"
/*
Crafting methods.
The crafting method depends on the inventory list
that the crafting input comes from.
*/
enum CraftMethod
{
// Crafting grid
CRAFT_METHOD_NORMAL,
// Cooking something in a furnace
CRAFT_METHOD_COOKING,
// Using something as fuel for a furnace
CRAFT_METHOD_FUEL,
};
/*
Input: The contents of the crafting slots, arranged in matrix form
*/
struct CraftInput
{
CraftMethod method;
unsigned int width;
std::vector<ItemStack> items;
CraftInput():
method(CRAFT_METHOD_NORMAL), width(0), items()
{}
CraftInput(CraftMethod method_, unsigned int width_,
const std::vector<ItemStack> &items_):
method(method_), width(width_), items(items_)
{}
std::string dump() const;
};
/*
Output: Result of crafting operation
*/
struct CraftOutput
{
// Used for normal crafting and cooking, itemstring
std::string item;
// Used for cooking (cook time) and fuel (burn time), seconds
float time;
CraftOutput():
item(""), time(0)
{}
CraftOutput(std::string item_, float time_):
item(item_), time(time_)
{}
std::string dump() const;
};
/*
A list of replacements. A replacement indicates that a specific
input item should not be deleted (when crafting) but replaced with
a different item. Each replacements is a pair (itemstring to remove,
itemstring to replace with)
Example: If ("bucket:bucket_water", "bucket:bucket_empty") is a
replacement pair, the crafting input slot that contained a water
bucket will contain an empty bucket after crafting.
Note: replacements only work correctly when stack_max of the item
to be replaced is 1. It is up to the mod writer to ensure this.
*/
struct CraftReplacements
{
// List of replacements
std::vector<std::pair<std::string, std::string> > pairs;
CraftReplacements():
pairs()
{}
CraftReplacements(std::vector<std::pair<std::string, std::string> > pairs_):
pairs(pairs_)
{}
std::string dump() const;
};
/*
Crafting definition base class
*/
class CraftDefinition
{
public:
CraftDefinition(){}
virtual ~CraftDefinition(){}
void serialize(std::ostream &os) const;
static CraftDefinition* deSerialize(std::istream &is);
// Returns type of crafting definition
virtual std::string getName() const=0;
// Checks whether the recipe is applicable
virtual bool check(const CraftInput &input, IGameDef *gamedef) const=0;
// Returns the output structure, meaning depends on crafting method
// The implementation can assume that check(input) returns true
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const=0;
// Decreases count of every input item
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const=0;
virtual std::string dump() const=0;
protected:
virtual void serializeBody(std::ostream &os) const=0;
virtual void deSerializeBody(std::istream &is, int version)=0;
};
/*
A plain-jane (shaped) crafting definition
Supported crafting method: CRAFT_METHOD_NORMAL.
Requires the input items to be arranged exactly like in the recipe.
*/
class CraftDefinitionShaped: public CraftDefinition
{
public:
CraftDefinitionShaped():
output(""), width(1), recipe(), replacements()
{}
CraftDefinitionShaped(
const std::string &output_,
unsigned int width_,
const std::vector<std::string> &recipe_,
const CraftReplacements &replacements_):
output(output_), width(width_), recipe(recipe_), replacements(replacements_)
{}
virtual ~CraftDefinitionShaped(){}
virtual std::string getName() const;
virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
virtual std::string dump() const;
protected:
virtual void serializeBody(std::ostream &os) const;
virtual void deSerializeBody(std::istream &is, int version);
private:
// Output itemstring
std::string output;
// Width of recipe
unsigned int width;
// Recipe matrix (itemstrings)
std::vector<std::string> recipe;
// Replacement items for decrementInput()
CraftReplacements replacements;
};
/*
A shapeless crafting definition
Supported crafting method: CRAFT_METHOD_NORMAL.
Input items can arranged in any way.
*/
class CraftDefinitionShapeless: public CraftDefinition
{
public:
CraftDefinitionShapeless():
output(""), recipe(), replacements()
{}
CraftDefinitionShapeless(
const std::string &output_,
const std::vector<std::string> &recipe_,
const CraftReplacements &replacements_):
output(output_), recipe(recipe_), replacements(replacements_)
{}
virtual ~CraftDefinitionShapeless(){}
virtual std::string getName() const;
virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
virtual std::string dump() const;
protected:
virtual void serializeBody(std::ostream &os) const;
virtual void deSerializeBody(std::istream &is, int version);
private:
// Output itemstring
std::string output;
// Recipe list (itemstrings)
std::vector<std::string> recipe;
// Replacement items for decrementInput()
CraftReplacements replacements;
};
/*
Tool repair crafting definition
Supported crafting method: CRAFT_METHOD_NORMAL.
Put two damaged tools into the crafting grid, get one tool back.
There should only be one crafting definition of this type.
*/
class CraftDefinitionToolRepair: public CraftDefinition
{
public:
CraftDefinitionToolRepair():
additional_wear(0)
{}
CraftDefinitionToolRepair(float additional_wear_):
additional_wear(additional_wear_)
{}
virtual ~CraftDefinitionToolRepair(){}
virtual std::string getName() const;
virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
virtual std::string dump() const;
protected:
virtual void serializeBody(std::ostream &os) const;
virtual void deSerializeBody(std::istream &is, int version);
private:
// This is a constant that is added to the wear of the result.
// May be positive or negative, allowed range [-1,1].
// 1 = new tool is completely broken
// 0 = simply add remaining uses of both input tools
// -1 = new tool is completely pristine
float additional_wear;
};
/*
A cooking (in furnace) definition
Supported crafting method: CRAFT_METHOD_COOKING.
*/
class CraftDefinitionCooking: public CraftDefinition
{
public:
CraftDefinitionCooking():
output(""), recipe(""), cooktime()
{}
CraftDefinitionCooking(
const std::string &output_,
const std::string &recipe_,
float cooktime_):
output(output_), recipe(recipe_), cooktime(cooktime_)
{}
virtual ~CraftDefinitionCooking(){}
virtual std::string getName() const;
virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
virtual std::string dump() const;
protected:
virtual void serializeBody(std::ostream &os) const;
virtual void deSerializeBody(std::istream &is, int version);
private:
// Output itemstring
std::string output;
// Recipe itemstring
std::string recipe;
// Time in seconds
float cooktime;
};
/*
A fuel (for furnace) definition
Supported crafting method: CRAFT_METHOD_FUEL.
*/
class CraftDefinitionFuel: public CraftDefinition
{
public:
CraftDefinitionFuel():
recipe(""), burntime()
{}
CraftDefinitionFuel(std::string recipe_, float burntime_):
recipe(recipe_), burntime(burntime_)
{}
virtual ~CraftDefinitionFuel(){}
virtual std::string getName() const;
virtual bool check(const CraftInput &input, IGameDef *gamedef) const;
virtual CraftOutput getOutput(const CraftInput &input, IGameDef *gamedef) const;
virtual void decrementInput(CraftInput &input, IGameDef *gamedef) const;
virtual std::string dump() const;
protected:
virtual void serializeBody(std::ostream &os) const;
virtual void deSerializeBody(std::istream &is, int version);
private:
// Recipe itemstring
std::string recipe;
// Time in seconds
float burntime;
};
/*
Crafting definition manager
*/
class ICraftDefManager
{
public:
ICraftDefManager(){}
virtual ~ICraftDefManager(){}
// The main crafting function
virtual bool getCraftResult(CraftInput &input, CraftOutput &output,
bool decrementInput, IGameDef *gamedef) const=0;
// Print crafting recipes for debugging
virtual std::string dump() const=0;
virtual void serialize(std::ostream &os) const=0;
};
class IWritableCraftDefManager : public ICraftDefManager
{
public:
IWritableCraftDefManager(){}
virtual ~IWritableCraftDefManager(){}
// The main crafting function
virtual bool getCraftResult(CraftInput &input, CraftOutput &output,
bool decrementInput, IGameDef *gamedef) const=0;
// Print crafting recipes for debugging
virtual std::string dump() const=0;
// Add a crafting definition.
// After calling this, the pointer belongs to the manager.
virtual void registerCraft(CraftDefinition *def)=0;
// Delete all crafting definitions
virtual void clear()=0;
virtual void serialize(std::ostream &os) const=0;
virtual void deSerialize(std::istream &is)=0;
};
IWritableCraftDefManager* createCraftDefManager();
#endif