X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Fnodemetadata.h;h=5af10d0f0ef8133a9fad5d177c1026fcdb6060cf;hb=bc3072b35e6a60cc77ee5275eb9e7cd5c537385c;hp=d81ade96cf434e8dbc5fc406679f44d1f535a199;hpb=061d4b420206c67fb346d75fb6bcaf4aa8147ca8;p=minetest.git

diff --git a/src/nodemetadata.h b/src/nodemetadata.h
index d81ade96c..5af10d0f0 100644
--- a/src/nodemetadata.h
+++ b/src/nodemetadata.h
@@ -1,18 +1,18 @@
 /*
-Minetest-c55
-Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2010-2013 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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+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.
 */
@@ -20,61 +20,74 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef NODEMETADATA_HEADER
 #define NODEMETADATA_HEADER
 
-#include "common_irrlicht.h"
+#include "irrlichttypes_bloated.h"
 #include <string>
 #include <iostream>
+#include <map>
 
 /*
-	Used for storing:
+	NodeMetadata stores arbitary amounts of data for special blocks.
+	Used for furnaces, chests and signs.
 
-	Oven:
-		- Item that is being burned
-		- Burning time
-		- Item stack that is being heated
-		- Result item stack
-	
-	Sign:
-		- Text
+	There are two interaction methods: inventory menu and text input.
+	Only one can be used for a single metadata, thus only inventory OR
+	text input should exist in a metadata.
 */
 
 class Inventory;
+class IGameDef;
 
 class NodeMetadata
 {
 public:
-	typedef NodeMetadata* (*Factory)(std::istream&);
-
-	NodeMetadata();
-	virtual ~NodeMetadata();
+	NodeMetadata(IGameDef *gamedef);
+	~NodeMetadata();
 	
-	static NodeMetadata* deSerialize(std::istream &is);
-	void serialize(std::ostream &os);
+	void serialize(std::ostream &os) const;
+	void deSerialize(std::istream &is);
 	
-	// This usually is the CONTENT_ value
-	virtual u16 typeId() const = 0;
-	virtual NodeMetadata* clone() = 0;
-	virtual void serializeBody(std::ostream &os) = 0;
-	virtual std::string infoText() {return "";}
-	virtual Inventory* getInventory() {return NULL;}
-	// This is called always after the inventory is modified, before
-	// the changes are copied elsewhere
-	virtual void inventoryModified(){}
-	// A step in time. Returns true if metadata changed.
-	virtual bool step(float dtime) {return false;}
-	virtual bool nodeRemovalDisabled(){return false;}
-	// Used to make custom inventory menus.
-	// See format in guiInventoryMenu.cpp.
-	virtual std::string getInventoryDrawSpecString(){return "";}
-	// primarily used for locking chests, but others can play too
-	virtual std::string getOwner(){ return std::string(""); }
-	virtual void setOwner(std::string t){  }
-
-protected:
-	static void registerType(u16 id, Factory f);
+	void clear();
+
+	// Generic key/value store
+	std::string getString(const std::string &name) const
+	{
+		std::map<std::string, std::string>::const_iterator i;
+		i = m_stringvars.find(name);
+		if(i == m_stringvars.end())
+			return "";
+		return resolveString(i->second);
+	}
+	void setString(const std::string &name, const std::string &var)
+	{
+		if(var.empty())
+			m_stringvars.erase(name);
+		else
+			m_stringvars[name] = var;
+	}
+	// support variable names in values
+	std::string resolveString(const std::string &str) const
+	{
+		if(str.substr(0,2) == "${" && str[str.length()-1] == '}')
+			return resolveString(getString(str.substr(2,str.length()-3)));
+		return str;
+	}
+	std::map<std::string, std::string> getStrings() const
+	{
+		return m_stringvars;
+	}
+
+	// The inventory
+	Inventory* getInventory()
+	{
+		return m_inventory;
+	}
+
 private:
-	static core::map<u16, Factory> m_types;
+	std::map<std::string, std::string> m_stringvars;
+	Inventory *m_inventory;
 };
 
+
 /*
 	List of metadata of all the nodes of a block
 */
@@ -84,8 +97,8 @@ class NodeMetadataList
 public:
 	~NodeMetadataList();
 
-	void serialize(std::ostream &os);
-	void deSerialize(std::istream &is);
+	void serialize(std::ostream &os) const;
+	void deSerialize(std::istream &is, IGameDef *gamedef);
 	
 	// Get pointer to data
 	NodeMetadata* get(v3s16 p);
@@ -93,12 +106,11 @@ class NodeMetadataList
 	void remove(v3s16 p);
 	// Deletes old data and sets a new one
 	void set(v3s16 p, NodeMetadata *d);
+	// Deletes all
+	void clear();
 	
-	// A step in time. Returns true if something changed.
-	bool step(float dtime);
-
 private:
-	core::map<v3s16, NodeMetadata*> m_data;
+	std::map<v3s16, NodeMetadata*> m_data;
 };
 
 #endif