minetest/src/itemdef.cpp
2013-02-24 18:49:03 +01:00

638 lines
16 KiB
C++

/*
Minetest
Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
Copyright (C) 2011 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 "gamedef.h"
#include "nodedef.h"
#include "tool.h"
#include "inventory.h"
#ifndef SERVER
#include "mapblock_mesh.h"
#include "mesh.h"
#include "tile.h"
#endif
#include "log.h"
#include "main.h" // g_settings
#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;
inventory_image = def.inventory_image;
wield_image = def.wield_image;
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;
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 = "";
description = "";
inventory_image = "";
wield_image = "";
wield_scale = v3f(1.0, 1.0, 1.0);
stack_max = 99;
usable = false;
rightclickable = false;
liquids_pointable = false;
if(tool_capabilities)
{
delete tool_capabilities;
tool_capabilities = NULL;
}
groups.clear();
node_placement_prediction = "";
}
void ItemDefinition::serialize(std::ostream &os) const
{
writeU8(os, 1); // version
writeU8(os, type);
os<<serializeString(name);
os<<serializeString(description);
os<<serializeString(inventory_image);
os<<serializeString(wield_image);
writeV3F1000(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);
tool_capabilities_s = tmp_os.str();
}
os<<serializeString(tool_capabilities_s);
writeU16(os, groups.size());
for(std::map<std::string, int>::const_iterator
i = groups.begin(); i != groups.end(); i++){
os<<serializeString(i->first);
writeS16(os, i->second);
}
os<<serializeString(node_placement_prediction);
}
void ItemDefinition::deSerialize(std::istream &is)
{
// Reset everything
reset();
// Deserialize
int version = readU8(is);
if(version != 1)
throw SerializationError("unsupported ItemDefinition version");
type = (enum ItemType)readU8(is);
name = deSerializeString(is);
description = deSerializeString(is);
inventory_image = deSerializeString(is);
wield_image = deSerializeString(is);
wield_scale = readV3F1000(is);
stack_max = readS16(is);
usable = readU8(is);
liquids_pointable = readU8(is);
std::string tool_capabilities_s = deSerializeString(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 = deSerializeString(is);
int value = readS16(is);
groups[name] = value;
}
// If you add anything here, insert it primarily inside the try-catch
// block to not need to increase the version.
try{
node_placement_prediction = deSerializeString(is);
}catch(SerializationError &e) {};
}
/*
CItemDefManager
*/
// SUGG: Support chains of aliases?
class CItemDefManager: public IWritableItemDefManager
{
#ifndef SERVER
struct ClientCached
{
video::ITexture *inventory_texture;
scene::IMesh *wield_mesh;
ClientCached():
inventory_texture(NULL),
wield_mesh(NULL)
{}
};
#endif
public:
CItemDefManager()
{
#ifndef SERVER
m_main_thread = get_current_thread_id();
#endif
clear();
}
virtual ~CItemDefManager()
{
#ifndef SERVER
const core::list<ClientCached*> &values = m_clientcached.getValues();
for(core::list<ClientCached*>::ConstIterator
i = values.begin(); i != values.end(); ++i)
{
ClientCached *cc = *i;
cc->wield_mesh->drop();
}
#endif
}
virtual const ItemDefinition& get(const std::string &name_) const
{
// Convert name according to possible alias
std::string name = getAlias(name_);
// Get the definition
std::map<std::string, ItemDefinition*>::const_iterator i;
i = m_item_definitions.find(name);
if(i == m_item_definitions.end())
i = m_item_definitions.find("unknown");
assert(i != m_item_definitions.end());
return *(i->second);
}
virtual std::string getAlias(const std::string &name) const
{
std::map<std::string, std::string>::const_iterator i;
i = m_aliases.find(name);
if(i != m_aliases.end())
return i->second;
return name;
}
virtual std::set<std::string> getAll() const
{
std::set<std::string> result;
for(std::map<std::string, ItemDefinition*>::const_iterator
i = m_item_definitions.begin();
i != m_item_definitions.end(); i++)
{
result.insert(i->first);
}
for(std::map<std::string, std::string>::const_iterator
i = m_aliases.begin();
i != m_aliases.end(); i++)
{
result.insert(i->first);
}
return result;
}
virtual bool isKnown(const std::string &name_) const
{
// Convert name according to possible alias
std::string name = getAlias(name_);
// Get the definition
std::map<std::string, ItemDefinition*>::const_iterator i;
return m_item_definitions.find(name) != m_item_definitions.end();
}
#ifndef SERVER
ClientCached* createClientCachedDirect(const std::string &name,
IGameDef *gamedef) const
{
infostream<<"Lazily creating item texture and mesh for \""
<<name<<"\""<<std::endl;
// This is not thread-safe
assert(get_current_thread_id() == m_main_thread);
// Skip if already in cache
ClientCached *cc = NULL;
m_clientcached.get(name, &cc);
if(cc)
return cc;
ITextureSource *tsrc = gamedef->getTextureSource();
INodeDefManager *nodedef = gamedef->getNodeDefManager();
IrrlichtDevice *device = tsrc->getDevice();
video::IVideoDriver *driver = device->getVideoDriver();
const ItemDefinition *def = &get(name);
// Create new ClientCached
cc = new ClientCached();
bool need_node_mesh = false;
// Create an inventory texture
cc->inventory_texture = NULL;
if(def->inventory_image != "")
{
cc->inventory_texture = tsrc->getTextureRaw(def->inventory_image);
}
else if(def->type == ITEM_NODE)
{
need_node_mesh = true;
}
// Create a wield mesh
if(cc->wield_mesh != NULL)
{
cc->wield_mesh->drop();
cc->wield_mesh = NULL;
}
if(def->type == ITEM_NODE && def->wield_image == "")
{
need_node_mesh = true;
}
else if(def->wield_image != "" || def->inventory_image != "")
{
// Extrude the wield image into a mesh
std::string imagename;
if(def->wield_image != "")
imagename = def->wield_image;
else
imagename = def->inventory_image;
cc->wield_mesh = createExtrudedMesh(
tsrc->getTextureRaw(imagename),
driver,
def->wield_scale * v3f(40.0, 40.0, 4.0));
if(cc->wield_mesh == NULL)
{
infostream<<"ItemDefManager: WARNING: "
<<"updateTexturesAndMeshes(): "
<<"Unable to create extruded mesh for item "
<<def->name<<std::endl;
}
}
if(need_node_mesh)
{
/*
Get node properties
*/
content_t id = nodedef->getId(def->name);
const ContentFeatures &f = nodedef->get(id);
u8 param1 = 0;
if(f.param_type == CPT_LIGHT)
param1 = 0xee;
/*
Make a mesh from the node
*/
MeshMakeData mesh_make_data(gamedef);
MapNode mesh_make_node(id, param1, 0);
mesh_make_data.fillSingleNode(&mesh_make_node);
MapBlockMesh mapblock_mesh(&mesh_make_data);
scene::IMesh *node_mesh = mapblock_mesh.getMesh();
assert(node_mesh);
video::SColor c(255, 255, 255, 255);
if(g_settings->getS32("enable_shaders") != 0)
c = MapBlock_LightColor(255, 0xffff, decode_light(f.light_source));
setMeshColor(node_mesh, c);
/*
Scale and translate the mesh so it's a unit cube
centered on the origin
*/
scaleMesh(node_mesh, v3f(1.0/BS, 1.0/BS, 1.0/BS));
translateMesh(node_mesh, v3f(-1.0, -1.0, -1.0));
/*
Draw node mesh into a render target texture
*/
if(cc->inventory_texture == NULL)
{
core::dimension2d<u32> dim(64,64);
std::string rtt_texture_name = "INVENTORY_"
+ def->name + "_RTT";
v3f camera_position(0, 1.0, -1.5);
camera_position.rotateXZBy(45);
v3f camera_lookat(0, 0, 0);
core::CMatrix4<f32> camera_projection_matrix;
// Set orthogonal projection
camera_projection_matrix.buildProjectionMatrixOrthoLH(
1.65, 1.65, 0, 100);
video::SColorf ambient_light(0.2,0.2,0.2);
v3f light_position(10, 100, -50);
video::SColorf light_color(0.5,0.5,0.5);
f32 light_radius = 1000;
cc->inventory_texture = generateTextureFromMesh(
node_mesh, device, dim, rtt_texture_name,
camera_position,
camera_lookat,
camera_projection_matrix,
ambient_light,
light_position,
light_color,
light_radius);
// render-to-target didn't work
if(cc->inventory_texture == NULL)
{
cc->inventory_texture =
tsrc->getTextureRaw(f.tiledef[0].name);
}
}
/*
Use the node mesh as the wield mesh
*/
if(cc->wield_mesh == NULL)
{
// Scale to proper wield mesh proportions
scaleMesh(node_mesh, v3f(30.0, 30.0, 30.0)
* def->wield_scale);
cc->wield_mesh = node_mesh;
cc->wield_mesh->grab();
}
// falling outside of here deletes node_mesh
}
// Put in cache
m_clientcached.set(name, cc);
return cc;
}
ClientCached* getClientCached(const std::string &name,
IGameDef *gamedef) const
{
ClientCached *cc = NULL;
m_clientcached.get(name, &cc);
if(cc)
return cc;
if(get_current_thread_id() == m_main_thread)
{
return createClientCachedDirect(name, gamedef);
}
else
{
// We're gonna ask the result to be put into here
ResultQueue<std::string, ClientCached*, u8, u8> result_queue;
// Throw a request in
m_get_clientcached_queue.add(name, 0, 0, &result_queue);
try{
// Wait result for a second
GetResult<std::string, ClientCached*, u8, u8>
result = result_queue.pop_front(1000);
// Check that at least something worked OK
assert(result.key == name);
// Return it
return result.item;
}
catch(ItemNotFoundException &e)
{
errorstream<<"Waiting for clientcached timed out."<<std::endl;
return &m_dummy_clientcached;
}
}
}
// Get item inventory texture
virtual video::ITexture* getInventoryTexture(const std::string &name,
IGameDef *gamedef) const
{
ClientCached *cc = getClientCached(name, gamedef);
if(!cc)
return NULL;
return cc->inventory_texture;
}
// Get item wield mesh
virtual scene::IMesh* getWieldMesh(const std::string &name,
IGameDef *gamedef) const
{
ClientCached *cc = getClientCached(name, gamedef);
if(!cc)
return NULL;
return cc->wield_mesh;
}
#endif
void clear()
{
for(std::map<std::string, ItemDefinition*>::const_iterator
i = m_item_definitions.begin();
i != m_item_definitions.end(); i++)
{
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
// "air" is the air node
// "ignore" is the ignore node
ItemDefinition* hand_def = new ItemDefinition;
hand_def->name = "";
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->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)
{
verbosestream<<"ItemDefManager: registering \""<<def.name<<"\""<<std::endl;
// Ensure that the "" item (the hand) always has ToolCapabilities
if(def.name == "")
assert(def.tool_capabilities != NULL);
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 registerAlias(const std::string &name,
const std::string &convert_to)
{
if(m_item_definitions.find(name) == m_item_definitions.end())
{
verbosestream<<"ItemDefManager: setting alias "<<name
<<" -> "<<convert_to<<std::endl;
m_aliases[name] = convert_to;
}
}
void serialize(std::ostream &os)
{
writeU8(os, 0); // version
u16 count = m_item_definitions.size();
writeU16(os, count);
for(std::map<std::string, ItemDefinition*>::const_iterator
i = m_item_definitions.begin();
i != m_item_definitions.end(); i++)
{
ItemDefinition *def = i->second;
// Serialize ItemDefinition and write wrapped in a string
std::ostringstream tmp_os(std::ios::binary);
def->serialize(tmp_os);
os<<serializeString(tmp_os.str());
}
writeU16(os, m_aliases.size());
for(std::map<std::string, std::string>::const_iterator
i = m_aliases.begin(); i != m_aliases.end(); i++)
{
os<<serializeString(i->first);
os<<serializeString(i->second);
}
}
void deSerialize(std::istream &is)
{
// Clear everything
clear();
// Deserialize
int version = readU8(is);
if(version != 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(deSerializeString(is), std::ios::binary);
ItemDefinition def;
def.deSerialize(tmp_is);
// Register
registerItem(def);
}
u16 num_aliases = readU16(is);
for(u16 i=0; i<num_aliases; i++)
{
std::string name = deSerializeString(is);
std::string convert_to = deSerializeString(is);
registerAlias(name, convert_to);
}
}
void processQueue(IGameDef *gamedef)
{
#ifndef SERVER
while(m_get_clientcached_queue.size() > 0)
{
GetRequest<std::string, ClientCached*, u8, u8>
request = m_get_clientcached_queue.pop();
GetResult<std::string, ClientCached*, u8, u8>
result;
result.key = request.key;
result.callers = request.callers;
result.item = createClientCachedDirect(request.key, gamedef);
request.dest->push_back(result);
}
#endif
}
private:
// Key is name
std::map<std::string, ItemDefinition*> m_item_definitions;
// Aliases
std::map<std::string, std::string> m_aliases;
#ifndef SERVER
// The id of the thread that is allowed to use irrlicht directly
threadid_t m_main_thread;
// A reference to this can be returned when nothing is found, to avoid NULLs
mutable ClientCached m_dummy_clientcached;
// Cached textures and meshes
mutable MutexedMap<std::string, ClientCached*> m_clientcached;
// Queued clientcached fetches (to be processed by the main thread)
mutable RequestQueue<std::string, ClientCached*, u8, u8> m_get_clientcached_queue;
#endif
};
IWritableItemDefManager* createItemDefManager()
{
return new CItemDefManager();
}