minetest/src/itemdef.cpp

583 lines
16 KiB
C++

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2013 Kahrl <kahrl@gmx.net>
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 "itemdef.h"
#include "nodedef.h"
#include "tool.h"
#include "inventory.h"
#ifndef SERVER
#include "client/mapblock_mesh.h"
#include "client/mesh.h"
#include "client/wieldmesh.h"
#include "client/tile.h"
#include "client/client.h"
#endif
#include "log.h"
#include "settings.h"
#include "util/serialize.h"
#include "util/container.h"
#include "util/thread.h"
#include <map>
#include <set>
/*
ItemDefinition
*/
ItemDefinition::ItemDefinition()
{
resetInitial();
}
ItemDefinition::ItemDefinition(const ItemDefinition &def)
{
resetInitial();
*this = def;
}
ItemDefinition& ItemDefinition::operator=(const ItemDefinition &def)
{
if(this == &def)
return *this;
reset();
type = def.type;
name = def.name;
description = def.description;
short_description = def.short_description;
inventory_image = def.inventory_image;
inventory_overlay = def.inventory_overlay;
wield_image = def.wield_image;
wield_overlay = def.wield_overlay;
wield_scale = def.wield_scale;
stack_max = def.stack_max;
usable = def.usable;
liquids_pointable = def.liquids_pointable;
if (def.tool_capabilities)
tool_capabilities = new ToolCapabilities(*def.tool_capabilities);
groups = def.groups;
node_placement_prediction = def.node_placement_prediction;
place_param2 = def.place_param2;
sound_place = def.sound_place;
sound_place_failed = def.sound_place_failed;
sound_use = def.sound_use;
sound_use_air = def.sound_use_air;
range = def.range;
palette_image = def.palette_image;
color = def.color;
return *this;
}
ItemDefinition::~ItemDefinition()
{
reset();
}
void ItemDefinition::resetInitial()
{
// Initialize pointers to NULL so reset() does not delete undefined pointers
tool_capabilities = NULL;
reset();
}
void ItemDefinition::reset()
{
type = ITEM_NONE;
name.clear();
description.clear();
short_description.clear();
inventory_image.clear();
inventory_overlay.clear();
wield_image.clear();
wield_overlay.clear();
palette_image.clear();
color = video::SColor(0xFFFFFFFF);
wield_scale = v3f(1.0, 1.0, 1.0);
stack_max = 99;
usable = false;
liquids_pointable = false;
delete tool_capabilities;
tool_capabilities = NULL;
groups.clear();
sound_place = SoundSpec();
sound_place_failed = SoundSpec();
sound_use = SoundSpec();
sound_use_air = SoundSpec();
range = -1;
node_placement_prediction.clear();
place_param2.reset();
}
void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
{
// protocol_version >= 37
u8 version = 6;
writeU8(os, version);
writeU8(os, type);
os << serializeString16(name);
os << serializeString16(description);
os << serializeString16(inventory_image);
os << serializeString16(wield_image);
writeV3F32(os, wield_scale);
writeS16(os, stack_max);
writeU8(os, usable);
writeU8(os, liquids_pointable);
std::string tool_capabilities_s;
if (tool_capabilities) {
std::ostringstream tmp_os(std::ios::binary);
tool_capabilities->serialize(tmp_os, protocol_version);
tool_capabilities_s = tmp_os.str();
}
os << serializeString16(tool_capabilities_s);
writeU16(os, groups.size());
for (const auto &group : groups) {
os << serializeString16(group.first);
writeS16(os, group.second);
}
os << serializeString16(node_placement_prediction);
// Version from ContentFeatures::serialize to keep in sync
sound_place.serializeSimple(os, protocol_version);
sound_place_failed.serializeSimple(os, protocol_version);
writeF32(os, range);
os << serializeString16(palette_image);
writeARGB8(os, color);
os << serializeString16(inventory_overlay);
os << serializeString16(wield_overlay);
os << serializeString16(short_description);
if (protocol_version <= 43) {
// Uncertainity whether 0 is the specified prediction or means disabled
if (place_param2)
os << *place_param2;
else
os << (u8)0;
}
sound_use.serializeSimple(os, protocol_version);
sound_use_air.serializeSimple(os, protocol_version);
os << (u8)place_param2.has_value(); // protocol_version >= 43
if (place_param2)
os << *place_param2;
}
void ItemDefinition::deSerialize(std::istream &is, u16 protocol_version)
{
// Reset everything
reset();
// Deserialize
int version = readU8(is);
if (version < 6)
throw SerializationError("unsupported ItemDefinition version");
type = (enum ItemType)readU8(is);
name = deSerializeString16(is);
description = deSerializeString16(is);
inventory_image = deSerializeString16(is);
wield_image = deSerializeString16(is);
wield_scale = readV3F32(is);
stack_max = readS16(is);
usable = readU8(is);
liquids_pointable = readU8(is);
std::string tool_capabilities_s = deSerializeString16(is);
if (!tool_capabilities_s.empty()) {
std::istringstream tmp_is(tool_capabilities_s, std::ios::binary);
tool_capabilities = new ToolCapabilities;
tool_capabilities->deSerialize(tmp_is);
}
groups.clear();
u32 groups_size = readU16(is);
for(u32 i=0; i<groups_size; i++){
std::string name = deSerializeString16(is);
int value = readS16(is);
groups[name] = value;
}
node_placement_prediction = deSerializeString16(is);
sound_place.deSerializeSimple(is, protocol_version);
sound_place_failed.deSerializeSimple(is, protocol_version);
range = readF32(is);
palette_image = deSerializeString16(is);
color = readARGB8(is);
inventory_overlay = deSerializeString16(is);
wield_overlay = deSerializeString16(is);
// If you add anything here, insert it inside the try-catch
// block to not need to increase the version.
try {
short_description = deSerializeString16(is);
if (protocol_version <= 43) {
place_param2 = readU8(is);
// assume disabled prediction
if (place_param2 == 0)
place_param2.reset();
}
sound_use.deSerializeSimple(is, protocol_version);
sound_use_air.deSerializeSimple(is, protocol_version);
if (is.eof())
throw SerializationError("");
if (readU8(is)) // protocol_version >= 43
place_param2 = readU8(is);
} catch(SerializationError &e) {};
}
/*
CItemDefManager
*/
// SUGG: Support chains of aliases?
class CItemDefManager: public IWritableItemDefManager
{
#ifndef SERVER
struct ClientCached
{
video::ITexture *inventory_texture;
ItemMesh wield_mesh;
Palette *palette;
ClientCached():
inventory_texture(NULL),
palette(NULL)
{}
~ClientCached() {
if (wield_mesh.mesh)
wield_mesh.mesh->drop();
}
DISABLE_CLASS_COPY(ClientCached);
};
#endif
public:
CItemDefManager()
{
#ifndef SERVER
m_main_thread = std::this_thread::get_id();
#endif
clear();
}
virtual ~CItemDefManager()
{
for (auto &item_definition : m_item_definitions) {
delete item_definition.second;
}
m_item_definitions.clear();
}
virtual const ItemDefinition& get(const std::string &name_) const
{
// Convert name according to possible alias
std::string name = getAlias(name_);
// Get the definition
auto i = m_item_definitions.find(name);
if (i == m_item_definitions.cend())
i = m_item_definitions.find("unknown");
assert(i != m_item_definitions.cend());
return *(i->second);
}
virtual const std::string &getAlias(const std::string &name) const
{
auto it = m_aliases.find(name);
if (it != m_aliases.cend())
return it->second;
return name;
}
virtual void getAll(std::set<std::string> &result) const
{
result.clear();
for (const auto &item_definition : m_item_definitions) {
result.insert(item_definition.first);
}
for (const auto &alias : m_aliases) {
result.insert(alias.first);
}
}
virtual bool isKnown(const std::string &name_) const
{
// Convert name according to possible alias
std::string name = getAlias(name_);
// Get the definition
return m_item_definitions.find(name) != m_item_definitions.cend();
}
#ifndef SERVER
public:
ClientCached* createClientCachedDirect(const ItemStack &item, Client *client) const
{
// This is not thread-safe
sanity_check(std::this_thread::get_id() == m_main_thread);
const ItemDefinition &def = item.getDefinition(this);
std::string inventory_image = item.getInventoryImage(this);
std::string inventory_overlay = item.getInventoryOverlay(this);
std::string cache_key = def.name;
if (!inventory_image.empty())
cache_key += "/" + inventory_image;
if (!inventory_overlay.empty())
cache_key += ":" + inventory_overlay;
// Skip if already in cache
auto it = m_clientcached.find(cache_key);
if (it != m_clientcached.end())
return it->second.get();
infostream << "Lazily creating item texture and mesh for \""
<< cache_key << "\"" << std::endl;
ITextureSource *tsrc = client->getTextureSource();
// Create new ClientCached
auto cc = std::make_unique<ClientCached>();
// Create an inventory texture
cc->inventory_texture = NULL;
if (!inventory_image.empty())
cc->inventory_texture = tsrc->getTexture(inventory_image);
getItemMesh(client, item, &(cc->wield_mesh));
cc->palette = tsrc->getPalette(def.palette_image);
// Put in cache
ClientCached *ptr = cc.get();
m_clientcached[cache_key] = std::move(cc);
return ptr;
}
// Get item inventory texture
virtual video::ITexture* getInventoryTexture(const ItemStack &item,
Client *client) const
{
ClientCached *cc = createClientCachedDirect(item, client);
if (!cc)
return nullptr;
return cc->inventory_texture;
}
// Get item wield mesh
virtual ItemMesh* getWieldMesh(const ItemStack &item, Client *client) const
{
ClientCached *cc = createClientCachedDirect(item, client);
if (!cc)
return nullptr;
return &(cc->wield_mesh);
}
// Get item palette
virtual Palette* getPalette(const ItemStack &item, Client *client) const
{
ClientCached *cc = createClientCachedDirect(item, client);
if (!cc)
return nullptr;
return cc->palette;
}
virtual video::SColor getItemstackColor(const ItemStack &stack,
Client *client) const
{
// Look for direct color definition
const std::string &colorstring = stack.metadata.getString("color", 0);
video::SColor directcolor;
if (!colorstring.empty() && parseColorString(colorstring, directcolor, true))
return directcolor;
// See if there is a palette
Palette *palette = getPalette(stack, client);
const std::string &index = stack.metadata.getString("palette_index", 0);
if (palette && !index.empty())
return (*palette)[mystoi(index, 0, 255)];
// Fallback color
return get(stack.name).color;
}
#endif
void applyTextureOverrides(const std::vector<TextureOverride> &overrides)
{
infostream << "ItemDefManager::applyTextureOverrides(): Applying "
"overrides to textures" << std::endl;
for (const TextureOverride& texture_override : overrides) {
if (m_item_definitions.find(texture_override.id) == m_item_definitions.end()) {
continue; // Ignore unknown item
}
ItemDefinition* itemdef = m_item_definitions[texture_override.id];
if (texture_override.hasTarget(OverrideTarget::INVENTORY))
itemdef->inventory_image = texture_override.texture;
if (texture_override.hasTarget(OverrideTarget::WIELD))
itemdef->wield_image = texture_override.texture;
}
}
void clear()
{
for (auto &i : m_item_definitions)
{
delete i.second;
}
m_item_definitions.clear();
m_aliases.clear();
// Add the four builtin items:
// "" is the hand
// "unknown" is returned whenever an undefined item
// is accessed (is also the unknown node)
// "air" is the air node
// "ignore" is the ignore node
ItemDefinition* hand_def = new ItemDefinition;
hand_def->name.clear();
hand_def->wield_image = "wieldhand.png";
hand_def->tool_capabilities = new ToolCapabilities;
m_item_definitions.insert(std::make_pair("", hand_def));
ItemDefinition* unknown_def = new ItemDefinition;
unknown_def->type = ITEM_NODE;
unknown_def->name = "unknown";
m_item_definitions.insert(std::make_pair("unknown", unknown_def));
ItemDefinition* air_def = new ItemDefinition;
air_def->type = ITEM_NODE;
air_def->name = "air";
m_item_definitions.insert(std::make_pair("air", air_def));
ItemDefinition* ignore_def = new ItemDefinition;
ignore_def->type = ITEM_NODE;
ignore_def->name = "ignore";
m_item_definitions.insert(std::make_pair("ignore", ignore_def));
}
virtual void registerItem(const ItemDefinition &def)
{
TRACESTREAM(<< "ItemDefManager: registering " << def.name << std::endl);
// Ensure that the "" item (the hand) always has ToolCapabilities
if (def.name.empty())
FATAL_ERROR_IF(!def.tool_capabilities, "Hand does not have ToolCapabilities");
if(m_item_definitions.count(def.name) == 0)
m_item_definitions[def.name] = new ItemDefinition(def);
else
*(m_item_definitions[def.name]) = def;
// Remove conflicting alias if it exists
bool alias_removed = (m_aliases.erase(def.name) != 0);
if(alias_removed)
infostream<<"ItemDefManager: erased alias "<<def.name
<<" because item was defined"<<std::endl;
}
virtual void unregisterItem(const std::string &name)
{
verbosestream<<"ItemDefManager: unregistering \""<<name<<"\""<<std::endl;
delete m_item_definitions[name];
m_item_definitions.erase(name);
}
virtual void registerAlias(const std::string &name,
const std::string &convert_to)
{
if (m_item_definitions.find(name) == m_item_definitions.end()) {
TRACESTREAM(<< "ItemDefManager: setting alias " << name
<< " -> " << convert_to << std::endl);
m_aliases[name] = convert_to;
}
}
void serialize(std::ostream &os, u16 protocol_version)
{
writeU8(os, 0); // version
u16 count = m_item_definitions.size();
writeU16(os, count);
for (const auto &it : m_item_definitions) {
ItemDefinition *def = it.second;
// Serialize ItemDefinition and write wrapped in a string
std::ostringstream tmp_os(std::ios::binary);
def->serialize(tmp_os, protocol_version);
os << serializeString16(tmp_os.str());
}
writeU16(os, m_aliases.size());
for (const auto &it : m_aliases) {
os << serializeString16(it.first);
os << serializeString16(it.second);
}
}
void deSerialize(std::istream &is, u16 protocol_version)
{
// Clear everything
clear();
if(readU8(is) != 0)
throw SerializationError("unsupported ItemDefManager version");
u16 count = readU16(is);
for(u16 i=0; i<count; i++)
{
// Deserialize a string and grab an ItemDefinition from it
std::istringstream tmp_is(deSerializeString16(is), std::ios::binary);
ItemDefinition def;
def.deSerialize(tmp_is, protocol_version);
// Register
registerItem(def);
}
u16 num_aliases = readU16(is);
for(u16 i=0; i<num_aliases; i++)
{
std::string name = deSerializeString16(is);
std::string convert_to = deSerializeString16(is);
registerAlias(name, convert_to);
}
}
private:
// Key is name
std::map<std::string, ItemDefinition*> m_item_definitions;
// Aliases
StringMap m_aliases;
#ifndef SERVER
// The id of the thread that is allowed to use irrlicht directly
std::thread::id m_main_thread;
// Cached textures and meshes
mutable std::unordered_map<std::string, std::unique_ptr<ClientCached>> m_clientcached;
#endif
};
IWritableItemDefManager* createItemDefManager()
{
return new CItemDefManager();
}