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minetest/src/mapblockobject.cpp

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/*
Minetest-c55
Copyright (C) 2010 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.
*/
// This file contains the DEPRECATED MapBlockObject system
#include "mapblockobject.h"
#include "mapblock.h"
// For object wrapping
#include "map.h"
#include "inventory.h"
#include "utility.h"
#include "mapblock.h"
/*
MapBlockObject
*/
// This is here because it uses the MapBlock
v3f MapBlockObject::getAbsolutePos()
{
if(m_block == NULL)
return m_pos;
// getPosRelative gets nodepos relative to map origin
v3f blockpos = intToFloat(m_block->getPosRelative(), BS);
return blockpos + m_pos;
}
void MapBlockObject::setBlockChanged()
{
if(m_block)
m_block->setChangedFlag();
}
/*
MovingObject
*/
v3f MovingObject::getAbsoluteShowPos()
{
if(m_block == NULL)
return m_pos;
// getPosRelative gets nodepos relative to map origin
v3f blockpos = intToFloat(m_block->getPosRelative(), BS);
return blockpos + m_showpos;
}
void MovingObject::move(float dtime, v3f acceleration)
{
DSTACKF("%s: typeid=%i, pos=(%f,%f,%f), speed=(%f,%f,%f)"
", dtime=%f, acc=(%f,%f,%f)",
__FUNCTION_NAME,
getTypeId(),
m_pos.X, m_pos.Y, m_pos.Z,
m_speed.X, m_speed.Y, m_speed.Z,
dtime,
acceleration.X, acceleration.Y, acceleration.Z
);
v3s16 oldpos_i = floatToInt(m_pos, BS);
if(m_block->isValidPosition(oldpos_i) == false)
{
// Should have wrapped, cancelling further movement.
return;
}
// No collisions if there is no collision box
if(m_collision_box == NULL)
{
m_speed += dtime * acceleration;
m_pos += m_speed * dtime;
return;
}
// Set insane speed to zero
// Otherwise there will be divides by zero and other silly stuff
if(m_speed.getLength() > 1000.0*BS)
m_speed = v3f(0,0,0);
// Limit speed to a reasonable value
float speed_limit = 20.0*BS;
if(m_speed.getLength() > speed_limit)
m_speed = m_speed * (speed_limit / m_speed.getLength());
v3f position = m_pos;
v3f oldpos = position;
/*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
<<oldpos_i.Z<<")"<<std::endl;*/
// Maximum time increment (for collision detection etc)
// Allow 0.1 blocks per increment
// time = distance / speed
// NOTE: In the loop below collisions are detected at 0.15*BS radius
float speedlength = m_speed.getLength();
f32 dtime_max_increment;
if(fabs(speedlength) > 0.001)
dtime_max_increment = 0.05*BS / speedlength;
else
dtime_max_increment = 0.5;
m_touching_ground = false;
u32 loopcount = 0;
do
{
loopcount++;
f32 dtime_part;
if(dtime > dtime_max_increment)
dtime_part = dtime_max_increment;
else
dtime_part = dtime;
dtime -= dtime_part;
// Begin of dtime limited code
m_speed += acceleration * dtime_part;
position += m_speed * dtime_part;
/*
Collision detection
*/
v3s16 pos_i = floatToInt(position, BS);
// The loop length is limited to the object moving a distance
f32 d = (float)BS * 0.15;
core::aabbox3d<f32> objectbox(
m_collision_box->MinEdge + position,
m_collision_box->MaxEdge + position
);
core::aabbox3d<f32> objectbox_old(
m_collision_box->MinEdge + oldpos,
m_collision_box->MaxEdge + oldpos
);
//TODO: Get these ranges from somewhere
for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
{
try{
MapNode n = m_block->getNodeParent(v3s16(x,y,z));
if(content_features(n).walkable == false)
continue;
}
catch(InvalidPositionException &e)
{
// Doing nothing here will block the object from
// walking over map borders
}
core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
// See if the object is touching ground
if(
fabs(nodebox.MaxEdge.Y-objectbox.MinEdge.Y) < d
&& nodebox.MaxEdge.X-d > objectbox.MinEdge.X
&& nodebox.MinEdge.X+d < objectbox.MaxEdge.X
&& nodebox.MaxEdge.Z-d > objectbox.MinEdge.Z
&& nodebox.MinEdge.Z+d < objectbox.MaxEdge.Z
){
m_touching_ground = true;
}
if(objectbox.intersectsWithBox(nodebox))
{
v3f dirs[3] = {
v3f(0,0,1), // back
v3f(0,1,0), // top
v3f(1,0,0), // right
};
for(u16 i=0; i<3; i++)
{
f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
f32 playermax = objectbox.MaxEdge.dotProduct(dirs[i]);
f32 playermin = objectbox.MinEdge.dotProduct(dirs[i]);
f32 playermax_old = objectbox_old.MaxEdge.dotProduct(dirs[i]);
f32 playermin_old = objectbox_old.MinEdge.dotProduct(dirs[i]);
bool main_edge_collides =
((nodemax > playermin && nodemax <= playermin_old + d
&& m_speed.dotProduct(dirs[i]) < 0)
||
(nodemin < playermax && nodemin >= playermax_old - d
&& m_speed.dotProduct(dirs[i]) > 0));
bool other_edges_collide = true;
for(u16 j=0; j<3; j++)
{
if(j == i)
continue;
f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
f32 playermax = objectbox.MaxEdge.dotProduct(dirs[j]);
f32 playermin = objectbox.MinEdge.dotProduct(dirs[j]);
if(!(nodemax - d > playermin && nodemin + d < playermax))
{
other_edges_collide = false;
break;
}
}
if(main_edge_collides && other_edges_collide)
{
m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
position -= position.dotProduct(dirs[i]) * dirs[i];
position += oldpos.dotProduct(dirs[i]) * dirs[i];
}
}
} // if(objectbox.intersectsWithBox(nodebox))
} // for y
} // End of dtime limited loop
while(dtime > 0.001);
m_pos = position;
}
void MovingObject::simpleMove(float dtime)
{
m_pos_animation_time_counter += dtime;
m_pos_animation_counter += dtime;
v3f movevector = m_pos - m_oldpos;
f32 moveratio;
if(m_pos_animation_time < 0.001)
moveratio = 1.0;
else
moveratio = m_pos_animation_counter / m_pos_animation_time;
if(moveratio > 1.5)
moveratio = 1.5;
m_showpos = m_oldpos + movevector * moveratio;
}
#ifndef SERVER
/*
RatObject
*/
void RatObject::addToScene(scene::ISceneManager *smgr)
{
if(m_node != NULL)
return;
video::IVideoDriver* driver = smgr->getVideoDriver();
scene::SMesh *mesh = new scene::SMesh();
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,-BS/4,0, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,-BS/4,0, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,BS/4,0, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,BS/4,0, 0,0,0, c, 0,0),
};
u16 indices[] = {0,1,2,2,3,0};
buf->append(vertices, 4, indices, 6);
// Set material
buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
buf->getMaterial().setTexture
(0, driver->getTexture(getTexturePath("rat.png").c_str()));
buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
// Add to mesh
mesh->addMeshBuffer(buf);
buf->drop();
m_node = smgr->addMeshSceneNode(mesh, NULL);
mesh->drop();
updateNodePos();
}
#endif
/*
ItemObject
*/
#ifndef SERVER
void ItemObject::addToScene(scene::ISceneManager *smgr)
{
if(m_node != NULL)
return;
//video::IVideoDriver* driver = smgr->getVideoDriver();
// Get image of item for showing
video::ITexture *texture = getItemImage();
/*
Create a mesh
*/
scene::SMesh *mesh = new scene::SMesh();
{
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
video::S3DVertex vertices[4] =
{
/*video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c, 0,1),
video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c, 1,1),
video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c, 1,0),
video::S3DVertex(BS/2,BS/2,0, 0,0,0, c, 0,0),*/
video::S3DVertex(BS/3,-BS/2,0, 0,0,0, c, 0,1),
video::S3DVertex(-BS/3,-BS/2,0, 0,0,0, c, 1,1),
video::S3DVertex(-BS/3,-BS/2+BS*2/3,0, 0,0,0, c, 1,0),
video::S3DVertex(BS/3,-BS/2+BS*2/3,0, 0,0,0, c, 0,0),
};
u16 indices[] = {0,1,2,2,3,0};
buf->append(vertices, 4, indices, 6);
// Set material
buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
buf->getMaterial().setTexture(0, texture);
buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
// Add to mesh
mesh->addMeshBuffer(buf);
buf->drop();
}
m_node = smgr->addMeshSceneNode(mesh, NULL);
// Set it to use the materials of the meshbuffers directly.
// This is needed for changing the texture in the future
((scene::IMeshSceneNode*)m_node)->setReadOnlyMaterials(true);
mesh->drop();
updateSceneNode();
}
video::ITexture * ItemObject::getItemImage()
{
/*
Create an inventory item to see what is its image
*/
video::ITexture *texture = NULL;
InventoryItem *item = createInventoryItem();
if(item)
texture = item->getImage();
if(item)
delete item;
return texture;
}
#endif
InventoryItem * ItemObject::createInventoryItem()
{
try{
std::istringstream is(m_itemstring, std::ios_base::binary);
InventoryItem *item = InventoryItem::deSerialize(is);
dstream<<__FUNCTION_NAME<<": m_itemstring=\""
<<m_itemstring<<"\" -> item="<<item
<<std::endl;
return item;
}
catch(SerializationError &e)
{
dstream<<__FUNCTION_NAME<<": serialization error: "
<<"m_itemstring=\""<<m_itemstring<<"\""<<std::endl;
return NULL;
}
}
/*
PlayerObject
*/
#ifndef SERVER
void PlayerObject::addToScene(scene::ISceneManager *smgr)
{
if(m_node != NULL)
return;
video::IVideoDriver* driver = smgr->getVideoDriver();
// Attach a simple mesh to the player for showing an image
scene::SMesh *mesh = new scene::SMesh();
{ // Front
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
video::S3DVertex vertices[4] =
{
video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
};
u16 indices[] = {0,1,2,2,3,0};
buf->append(vertices, 4, indices, 6);
// Set material
buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
//buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player.png").c_str()));
buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
//buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL;
buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
// Add to mesh
mesh->addMeshBuffer(buf);
buf->drop();
}
{ // Back
scene::IMeshBuffer *buf = new scene::SMeshBuffer();
video::SColor c(255,255,255,255);
video::S3DVertex vertices[4] =
{
video::S3DVertex(BS/2,0,0, 0,0,0, c, 1,1),
video::S3DVertex(-BS/2,0,0, 0,0,0, c, 0,1),
video::S3DVertex(-BS/2,BS*2,0, 0,0,0, c, 0,0),
video::S3DVertex(BS/2,BS*2,0, 0,0,0, c, 1,0),
};
u16 indices[] = {0,1,2,2,3,0};
buf->append(vertices, 4, indices, 6);
// Set material
buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
//buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
buf->getMaterial().setTexture(0, driver->getTexture(getTexturePath("player_back.png").c_str()));
buf->getMaterial().setFlag(video::EMF_BILINEAR_FILTER, false);
buf->getMaterial().setFlag(video::EMF_FOG_ENABLE, true);
buf->getMaterial().MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
// Add to mesh
mesh->addMeshBuffer(buf);
buf->drop();
}
m_node = smgr->addMeshSceneNode(mesh, NULL);
mesh->drop();
updateNodePos();
}
#endif
/*
MapBlockObjectList
*/
MapBlockObjectList::MapBlockObjectList(MapBlock *block):
m_block(block)
{
m_mutex.Init();
}
MapBlockObjectList::~MapBlockObjectList()
{
clear();
}
/*
The serialization format:
[0] u16 number of entries
[2] entries (id, typeId, parameters)
*/
void MapBlockObjectList::serialize(std::ostream &os, u8 version)
{
JMutexAutoLock lock(m_mutex);
u8 buf[2];
writeU16(buf, m_objects.size());
os.write((char*)buf, 2);
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
i.getNode()->getValue()->serialize(os, version);
}
}
void MapBlockObjectList::update(std::istream &is, u8 version,
scene::ISceneManager *smgr, u32 daynight_ratio)
{
JMutexAutoLock lock(m_mutex);
/*
Collect all existing ids to a set.
As things are updated, they are removed from this.
All remaining ones are deleted.
*/
core::map<s16, bool> ids_to_delete;
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
ids_to_delete.insert(i.getNode()->getKey(), true);
}
u8 buf[6];
is.read((char*)buf, 2);
u16 count = readU16(buf);
for(u16 i=0; i<count; i++)
{
// Read id
is.read((char*)buf, 2);
s16 id = readS16(buf);
// Read position
// stored as x1000/BS v3s16
is.read((char*)buf, 6);
v3s16 pos_i = readV3S16(buf);
v3f pos((f32)pos_i.X/1000*BS,
(f32)pos_i.Y/1000*BS,
(f32)pos_i.Z/1000*BS);
// Read typeId
is.read((char*)buf, 2);
u16 type_id = readU16(buf);
bool create_new = false;
// Find an object with the id
core::map<s16, MapBlockObject*>::Node *n;
n = m_objects.find(id);
// If no entry is found for id
if(n == NULL)
{
// Insert dummy pointer node
m_objects.insert(id, NULL);
// Get node
n = m_objects.find(id);
// A new object will be created at this node
create_new = true;
}
// If type_id differs
else if(n->getValue()->getTypeId() != type_id)
{
// Delete old object
delete n->getValue();
// A new object will be created at this node
create_new = true;
}
MapBlockObject *obj = NULL;
if(create_new)
{
/*dstream<<"MapBlockObjectList adding new object"
" id="<<id
<<std::endl;*/
if(type_id == MAPBLOCKOBJECT_TYPE_SIGN)
{
obj = new SignObject(m_block, id, pos);
}
else if(type_id == MAPBLOCKOBJECT_TYPE_RAT)
{
obj = new RatObject(m_block, id, pos);
}
else if(type_id == MAPBLOCKOBJECT_TYPE_ITEM)
{
obj = new ItemObject(m_block, id, pos);
}
else
{
// This is fatal because we cannot know the length
// of the object's data
throw SerializationError
("MapBlockObjectList::update(): Unknown MapBlockObject type");
}
if(smgr != NULL)
//obj->addToScene(smgr, daynight_ratio);
obj->addToScene(smgr);
n->setValue(obj);
}
else
{
obj = n->getValue();
obj->updatePos(pos);
/*if(daynight_ratio != m_last_update_daynight_ratio)
{
obj->removeFromScene();
obj->addToScene(smgr, daynight_ratio);
}*/
}
// Now there is an object in obj.
// Update it.
obj->update(is, version);
/*
Update light on client
*/
if(smgr != NULL)
{
u8 light = LIGHT_MAX;
try{
v3s16 relpos_i = floatToInt(obj->m_pos, BS);
MapNode n = m_block->getNodeParent(relpos_i);
light = n.getLightBlend(daynight_ratio);
}
catch(InvalidPositionException &e) {}
obj->updateLight(light);
}
// Remove from deletion list
if(ids_to_delete.find(id) != NULL)
ids_to_delete.remove(id);
}
// Delete all objects whose ids_to_delete remain in ids_to_delete
for(core::map<s16, bool>::Iterator
i = ids_to_delete.getIterator();
i.atEnd() == false; i++)
{
s16 id = i.getNode()->getKey();
/*dstream<<"MapBlockObjectList deleting object"
" id="<<id
<<std::endl;*/
MapBlockObject *obj = m_objects[id];
obj->removeFromScene();
delete obj;
m_objects.remove(id);
}
m_last_update_daynight_ratio = daynight_ratio;
}
s16 MapBlockObjectList::getFreeId() throw(ContainerFullException)
{
s16 id = 0;
for(;;)
{
if(m_objects.find(id) == NULL)
return id;
if(id == 32767)
throw ContainerFullException
("MapBlockObjectList doesn't fit more objects");
id++;
}
}
void MapBlockObjectList::add(MapBlockObject *object)
throw(ContainerFullException, AlreadyExistsException)
{
if(object == NULL)
{
dstream<<"MapBlockObjectList::add(): NULL object"<<std::endl;
return;
}
JMutexAutoLock lock(m_mutex);
// Create unique id if id==-1
if(object->m_id == -1)
{
object->m_id = getFreeId();
}
if(m_objects.find(object->m_id) != NULL)
{
dstream<<"MapBlockObjectList::add(): "
"object with same id already exists"<<std::endl;
throw AlreadyExistsException
("MapBlockObjectList already has given id");
}
object->m_block = m_block;
/*v3f p = object->m_pos;
dstream<<"MapBlockObjectList::add(): "
<<"m_block->getPos()=("
<<m_block->getPos().X<<","
<<m_block->getPos().Y<<","
<<m_block->getPos().Z<<")"
<<" inserting object with id="<<object->m_id
<<" pos="
<<"("<<p.X<<","<<p.Y<<","<<p.Z<<")"
<<std::endl;*/
m_objects.insert(object->m_id, object);
}
void MapBlockObjectList::clear()
{
JMutexAutoLock lock(m_mutex);
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
MapBlockObject *obj = i.getNode()->getValue();
//FIXME: This really shouldn't be NULL at any time,
// but this condition was added because it was.
if(obj != NULL)
{
obj->removeFromScene();
delete obj;
}
}
m_objects.clear();
}
void MapBlockObjectList::remove(s16 id)
{
JMutexAutoLock lock(m_mutex);
core::map<s16, MapBlockObject*>::Node *n;
n = m_objects.find(id);
if(n == NULL)
return;
n->getValue()->removeFromScene();
delete n->getValue();
m_objects.remove(id);
}
MapBlockObject * MapBlockObjectList::get(s16 id)
{
core::map<s16, MapBlockObject*>::Node *n;
n = m_objects.find(id);
if(n == NULL)
return NULL;
else
return n->getValue();
}
void MapBlockObjectList::step(float dtime, bool server, u32 daynight_ratio)
{
DSTACK(__FUNCTION_NAME);
JMutexAutoLock lock(m_mutex);
core::map<s16, bool> ids_to_delete;
{
DSTACKF("%s: stepping objects", __FUNCTION_NAME);
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
MapBlockObject *obj = i.getNode()->getValue();
DSTACKF("%s: stepping object type %i", __FUNCTION_NAME,
obj->getTypeId());
if(server)
{
// Update light
u8 light = LIGHT_MAX;
try{
v3s16 relpos_i = floatToInt(obj->m_pos, BS);
MapNode n = m_block->getNodeParent(relpos_i);
light = n.getLightBlend(daynight_ratio);
}
catch(InvalidPositionException &e) {}
obj->updateLight(light);
bool to_delete = obj->serverStep(dtime, daynight_ratio);
if(to_delete)
ids_to_delete.insert(obj->m_id, true);
}
else
{
obj->clientStep(dtime);
}
}
}
{
DSTACKF("%s: deleting objects", __FUNCTION_NAME);
// Delete objects in delete queue
for(core::map<s16, bool>::Iterator
i = ids_to_delete.getIterator();
i.atEnd() == false; i++)
{
s16 id = i.getNode()->getKey();
MapBlockObject *obj = m_objects[id];
obj->removeFromScene();
delete obj;
m_objects.remove(id);
}
}
/*
Wrap objects on server
*/
if(server == false)
return;
{
DSTACKF("%s: object wrap loop", __FUNCTION_NAME);
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
MapBlockObject *obj = i.getNode()->getValue();
v3s16 pos_i = floatToInt(obj->m_pos, BS);
if(m_block->isValidPosition(pos_i))
{
// No wrap
continue;
}
bool impossible = wrapObject(obj);
if(impossible)
{
// No wrap
continue;
}
// Restart find
i = m_objects.getIterator();
}
}
}
bool MapBlockObjectList::wrapObject(MapBlockObject *object)
{
DSTACK(__FUNCTION_NAME);
// No lock here; this is called so that the lock is already locked.
//JMutexAutoLock lock(m_mutex);
assert(object->m_block == m_block);
assert(m_objects.find(object->m_id) != NULL);
assert(m_objects[object->m_id] == object);
Map *map = m_block->getParent();
// Calculate blockpos on map
v3s16 oldblock_pos_i_on_map = m_block->getPosRelative();
v3f pos_f_on_oldblock = object->m_pos;
v3s16 pos_i_on_oldblock = floatToInt(pos_f_on_oldblock, BS);
v3s16 pos_i_on_map = pos_i_on_oldblock + oldblock_pos_i_on_map;
v3s16 pos_blocks_on_map = getNodeBlockPos(pos_i_on_map);
// Get new block
MapBlock *newblock;
try{
newblock = map->getBlockNoCreate(pos_blocks_on_map);
}
catch(InvalidPositionException &e)
{
// Couldn't find block -> not wrapping
/*dstream<<"WARNING: Wrapping object not possible: "
<<"could not find new block"
<<"("<<pos_blocks_on_map.X
<<","<<pos_blocks_on_map.Y
<<","<<pos_blocks_on_map.Z
<<")"<<std::endl;*/
/*dstream<<"pos_f_on_oldblock=("
<<pos_f_on_oldblock.X<<","
<<pos_f_on_oldblock.Y<<","
<<pos_f_on_oldblock.Z<<")"
<<std::endl;*/
return true;
}
if(newblock == m_block)
{
dstream<<"WARNING: Wrapping object not possible: "
"newblock == oldblock"<<std::endl;
return true;
}
// Calculate position on new block
v3f oldblock_pos_f_on_map = intToFloat(oldblock_pos_i_on_map, BS);
v3s16 newblock_pos_i_on_map = newblock->getPosRelative();
v3f newblock_pos_f_on_map = intToFloat(newblock_pos_i_on_map, BS);
v3f pos_f_on_newblock = pos_f_on_oldblock
- newblock_pos_f_on_map + oldblock_pos_f_on_map;
// Remove object from this block
m_objects.remove(object->m_id);
// Add object to new block
object->m_pos = pos_f_on_newblock;
object->m_id = -1;
object->m_block = NULL;
newblock->addObject(object);
//dstream<<"NOTE: Wrapped object"<<std::endl;
return false;
}
void MapBlockObjectList::getObjects(v3f origin, f32 max_d,
core::array<DistanceSortedObject> &dest)
{
for(core::map<s16, MapBlockObject*>::Iterator
i = m_objects.getIterator();
i.atEnd() == false; i++)
{
MapBlockObject *obj = i.getNode()->getValue();
f32 d = (obj->getRelativeShowPos() - origin).getLength();
if(d > max_d)
continue;
DistanceSortedObject dso(obj, d);
dest.push_back(dso);
}
}
//END
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