1 /*
2 Minetest
3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
4 Copyright (C) 2013 Kahrl <kahrl@gmx.net>
5 
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
10 
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 GNU Lesser General Public License for more details.
15 
16 You should have received a copy of the GNU Lesser General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 */
20 
21 #pragma once
22 
23 #include "irrlichttypes_extrabloated.h"
24 #include <string>
25 #include <iostream>
26 #include <set>
27 #include "itemgroup.h"
28 #include "sound.h"
29 #include "texture_override.h" // TextureOverride
30 class IGameDef;
31 class Client;
32 struct ToolCapabilities;
33 #ifndef SERVER
34 #include "client/tile.h"
35 struct ItemMesh;
36 struct ItemStack;
37 #endif
38 
39 /*
40 	Base item definition
41 */
42 
43 enum ItemType
44 {
45 	ITEM_NONE,
46 	ITEM_NODE,
47 	ITEM_CRAFT,
48 	ITEM_TOOL,
49 };
50 
51 struct ItemDefinition
52 {
53 	/*
54 		Basic item properties
55 	*/
56 	ItemType type;
57 	std::string name; // "" = hand
58 	std::string description; // Shown in tooltip.
59 	std::string short_description;
60 
61 	/*
62 		Visual properties
63 	*/
64 	std::string inventory_image; // Optional for nodes, mandatory for tools/craftitems
65 	std::string inventory_overlay; // Overlay of inventory_image.
66 	std::string wield_image; // If empty, inventory_image or mesh (only nodes) is used
67 	std::string wield_overlay; // Overlay of wield_image.
68 	std::string palette_image; // If specified, the item will be colorized based on this
69 	video::SColor color; // The fallback color of the node.
70 	v3f wield_scale;
71 
72 	/*
73 		Item stack and interaction properties
74 	*/
75 	u16 stack_max;
76 	bool usable;
77 	bool liquids_pointable;
78 	// May be NULL. If non-NULL, deleted by destructor
79 	ToolCapabilities *tool_capabilities;
80 	ItemGroupList groups;
81 	SimpleSoundSpec sound_place;
82 	SimpleSoundSpec sound_place_failed;
83 	f32 range;
84 
85 	// Client shall immediately place this node when player places the item.
86 	// Server will update the precise end result a moment later.
87 	// "" = no prediction
88 	std::string node_placement_prediction;
89 
90 	/*
91 		Some helpful methods
92 	*/
93 	ItemDefinition();
94 	ItemDefinition(const ItemDefinition &def);
95 	ItemDefinition& operator=(const ItemDefinition &def);
96 	~ItemDefinition();
97 	void reset();
98 	void serialize(std::ostream &os, u16 protocol_version) const;
99 	void deSerialize(std::istream &is);
100 private:
101 	void resetInitial();
102 };
103 
104 class IItemDefManager
105 {
106 public:
107 	IItemDefManager() = default;
108 
109 	virtual ~IItemDefManager() = default;
110 
111 	// Get item definition
112 	virtual const ItemDefinition& get(const std::string &name) const=0;
113 	// Get alias definition
114 	virtual const std::string &getAlias(const std::string &name) const=0;
115 	// Get set of all defined item names and aliases
116 	virtual void getAll(std::set<std::string> &result) const=0;
117 	// Check if item is known
118 	virtual bool isKnown(const std::string &name) const=0;
119 #ifndef SERVER
120 	// Get item inventory texture
121 	virtual video::ITexture* getInventoryTexture(const std::string &name,
122 			Client *client) const=0;
123 	// Get item wield mesh
124 	virtual ItemMesh* getWieldMesh(const std::string &name,
125 		Client *client) const=0;
126 	// Get item palette
127 	virtual Palette* getPalette(const std::string &name,
128 		Client *client) const = 0;
129 	// Returns the base color of an item stack: the color of all
130 	// tiles that do not define their own color.
131 	virtual video::SColor getItemstackColor(const ItemStack &stack,
132 		Client *client) const = 0;
133 #endif
134 
135 	virtual void serialize(std::ostream &os, u16 protocol_version)=0;
136 };
137 
138 class IWritableItemDefManager : public IItemDefManager
139 {
140 public:
141 	IWritableItemDefManager() = default;
142 
143 	virtual ~IWritableItemDefManager() = default;
144 
145 	// Get item definition
146 	virtual const ItemDefinition& get(const std::string &name) const=0;
147 	// Get alias definition
148 	virtual const std::string &getAlias(const std::string &name) const=0;
149 	// Get set of all defined item names and aliases
150 	virtual void getAll(std::set<std::string> &result) const=0;
151 	// Check if item is known
152 	virtual bool isKnown(const std::string &name) const=0;
153 #ifndef SERVER
154 	// Get item inventory texture
155 	virtual video::ITexture* getInventoryTexture(const std::string &name,
156 			Client *client) const=0;
157 	// Get item wield mesh
158 	virtual ItemMesh* getWieldMesh(const std::string &name,
159 		Client *client) const=0;
160 #endif
161 
162 	// Replace the textures of registered nodes with the ones specified in
163 	// the texture pack's override.txt files
164 	virtual void applyTextureOverrides(const std::vector<TextureOverride> &overrides)=0;
165 
166 	// Remove all registered item and node definitions and aliases
167 	// Then re-add the builtin item definitions
168 	virtual void clear()=0;
169 	// Register item definition
170 	virtual void registerItem(const ItemDefinition &def)=0;
171 	virtual void unregisterItem(const std::string &name)=0;
172 	// Set an alias so that items named <name> will load as <convert_to>.
173 	// Alias is not set if <name> has already been defined.
174 	// Alias will be removed if <name> is defined at a later point of time.
175 	virtual void registerAlias(const std::string &name,
176 			const std::string &convert_to)=0;
177 
178 	virtual void serialize(std::ostream &os, u16 protocol_version)=0;
179 	virtual void deSerialize(std::istream &is)=0;
180 
181 	// Do stuff asked by threads that can only be done in the main thread
182 	virtual void processQueue(IGameDef *gamedef)=0;
183 };
184 
185 IWritableItemDefManager* createItemDefManager();
186