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implemented rats in new system to verify that it works

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This commit is contained in:
Perttu Ahola 2011-04-10 15:16:27 +03:00
parent 08bbf96877
commit 5a4d8ffad3
14 changed files with 974 additions and 85 deletions
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189
src/clientobject.cpp
View File

@ -24,6 +24,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "utility.h"
#include "environment.h"
/*
ClientActiveObject
*/
core::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
ClientActiveObject::ClientActiveObject(u16 id):
@ -231,8 +235,9 @@ void ItemCAO::addToScene(scene::ISceneManager *smgr)
buf->getMaterial().setFlag(video::EMF_LIGHTING, false);
buf->getMaterial().setFlag(video::EMF_BACK_FACE_CULLING, false);
//buf->getMaterial().setTexture(0, NULL);
// Initialize with the stick texture
buf->getMaterial().setTexture
(0, driver->getTexture(porting::getDataPath("rat.png").c_str()));
(0, driver->getTexture(porting::getDataPath("stick.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;
@ -313,19 +318,12 @@ void ItemCAO::processMessage(const std::string &data)
{
dstream<<"ItemCAO: Got message"<<std::endl;
std::istringstream is(data, std::ios::binary);
char buf[4];
// command
is.read(buf, 1);
u8 cmd = buf[0];
u8 cmd = readU8(is);
if(cmd == 0)
{
// pos
is.read(buf, 4);
m_position.X = (float)readS32((u8*)buf)/1000.0;
is.read(buf, 4);
m_position.Y = (float)readS32((u8*)buf)/1000.0;
is.read(buf, 4);
m_position.Z = (float)readS32((u8*)buf)/1000.0;
m_position = readV3F1000(is);
updateNodePos();
}
}
@ -336,20 +334,13 @@ void ItemCAO::initialize(const std::string &data)
{
std::istringstream is(data, std::ios::binary);
char buf[4];
// version
is.read(buf, 1);
u8 version = buf[0];
u8 version = readU8(is);
// check version
if(version != 0)
return;
// pos
is.read(buf, 4);
m_position.X = (float)readS32((u8*)buf)/1000.0;
is.read(buf, 4);
m_position.Y = (float)readS32((u8*)buf)/1000.0;
is.read(buf, 4);
m_position.Z = (float)readS32((u8*)buf)/1000.0;
m_position = readV3F1000(is);
// inventorystring
m_inventorystring = deSerializeString(is);
}
@ -400,4 +391,164 @@ void ItemCAO::initialize(const std::string &data)
}
/*
RatCAO
*/
#include "inventory.h"
// Prototype
RatCAO proto_RatCAO;
RatCAO::RatCAO():
ClientActiveObject(0),
m_selection_box(-BS/3.,0.0,-BS/3., BS/3.,BS/2.,BS/3.),
m_node(NULL),
m_position(v3f(0,10*BS,0))
{
ClientActiveObject::registerType(getType(), create);
}
RatCAO::~RatCAO()
{
}
ClientActiveObject* RatCAO::create()
{
return new RatCAO();
}
void RatCAO::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/2,0,0, 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, NULL);
buf->getMaterial().setTexture
(0, driver->getTexture(porting::getDataPath("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();
// Set it to use the materials of the meshbuffers directly.
// This is needed for changing the texture in the future
m_node->setReadOnlyMaterials(true);
updateNodePos();
}
void RatCAO::removeFromScene()
{
if(m_node == NULL)
return;
m_node->remove();
m_node = NULL;
}
void RatCAO::updateLight(u8 light_at_pos)
{
if(m_node == NULL)
return;
u8 li = decode_light(light_at_pos);
video::SColor color(255,li,li,li);
scene::IMesh *mesh = m_node->getMesh();
if(mesh == NULL)
return;
u16 mc = mesh->getMeshBufferCount();
for(u16 j=0; j<mc; j++)
{
scene::IMeshBuffer *buf = mesh->getMeshBuffer(j);
video::S3DVertex *vertices = (video::S3DVertex*)buf->getVertices();
u16 vc = buf->getVertexCount();
for(u16 i=0; i<vc; i++)
{
vertices[i].Color = color;
}
}
}
v3s16 RatCAO::getLightPosition()
{
return floatToInt(m_position, BS);
}
void RatCAO::updateNodePos()
{
if(m_node == NULL)
return;
//m_node->setPosition(m_position);
m_node->setPosition(pos_translator.vect_show);
v3f rot = m_node->getRotation();
rot.Y = 180.0 - m_yaw;
m_node->setRotation(rot);
}
void RatCAO::step(float dtime, ClientEnvironment *env)
{
pos_translator.translate(dtime);
updateNodePos();
}
void RatCAO::processMessage(const std::string &data)
{
//dstream<<"RatCAO: Got message"<<std::endl;
std::istringstream is(data, std::ios::binary);
// command
u8 cmd = readU8(is);
if(cmd == 0)
{
// pos
m_position = readV3F1000(is);
pos_translator.update(m_position);
// yaw
m_yaw = readF1000(is);
updateNodePos();
}
}
void RatCAO::initialize(const std::string &data)
{
//dstream<<"RatCAO: Got init data"<<std::endl;
{
std::istringstream is(data, std::ios::binary);
// version
u8 version = readU8(is);
// check version
if(version != 0)
return;
// pos
m_position = readV3F1000(is);
pos_translator.init(m_position);
}
updateNodePos();
}

99
src/clientobject.h
View File

@ -35,6 +35,63 @@ Some planning
*/
/*
SmoothTranslator
*/
struct SmoothTranslator
{
v3f vect_old;
f32 anim_counter;
f32 anim_time;
f32 anim_time_counter;
v3f vect_show;
v3f vect_aim;
SmoothTranslator():
vect_old(0,0,0),
anim_counter(0),
anim_time(0),
anim_time_counter(0),
vect_show(0,0,0),
vect_aim(0,0,0)
{}
void init(v3f vect)
{
vect_old = vect;
vect_show = vect;
vect_aim = vect;
}
void update(v3f vect_new)
{
vect_old = vect_show;
vect_aim = vect_new;
if(anim_time < 0.001 || anim_time > 1.0)
anim_time = anim_time_counter;
else
anim_time = anim_time * 0.9 + anim_time_counter * 0.1;
anim_time_counter = 0;
anim_counter = 0;
}
void translate(f32 dtime)
{
anim_time_counter = anim_time_counter + dtime;
anim_counter = anim_counter + dtime;
v3f vect_move = vect_aim - vect_old;
f32 moveratio = 1.0;
if(anim_time > 0.001)
moveratio = anim_time_counter / anim_time;
// Move a bit less than should, to avoid oscillation
moveratio = moveratio * 0.8;
if(moveratio > 1.5)
moveratio = 1.5;
vect_show = vect_old + vect_move * moveratio;
}
};
class ClientEnvironment;
class ClientActiveObject : public ActiveObject
@ -168,5 +225,47 @@ private:
std::string m_inventorystring;
};
/*
RatCAO
*/
class RatCAO : public ClientActiveObject
{
public:
RatCAO();
virtual ~RatCAO();
u8 getType() const
{
return ACTIVEOBJECT_TYPE_RAT;
}
static ClientActiveObject* create();
void addToScene(scene::ISceneManager *smgr);
void removeFromScene();
void updateLight(u8 light_at_pos);
v3s16 getLightPosition();
void updateNodePos();
void step(float dtime, ClientEnvironment *env);
void processMessage(const std::string &data);
void initialize(const std::string &data);
core::aabbox3d<f32>* getSelectionBox()
{return &m_selection_box;}
v3f getPosition()
{return m_position;}
private:
core::aabbox3d<f32> m_selection_box;
scene::IMeshSceneNode *m_node;
v3f m_position;
float m_yaw;
SmoothTranslator pos_translator;
};
#endif

184
src/collision.cpp Normal file
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@ -0,0 +1,184 @@
/*
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.
*/
#include "collision.h"
#include "mapblock.h"
#include "map.h"
collisionMoveResult collisionMoveSimple(Map *map, f32 pos_max_d,
const core::aabbox3d<f32> &box_0,
f32 dtime, v3f &pos_f, v3f &speed_f)
{
collisionMoveResult result;
v3f oldpos_f = pos_f;
v3s16 oldpos_i = floatToInt(oldpos_f, BS);
/*
Calculate new position
*/
pos_f += speed_f * dtime;
/*
Collision detection
*/
// position in nodes
v3s16 pos_i = floatToInt(pos_f, BS);
/*
Collision uncertainty radius
Make it a bit larger than the maximum distance of movement
*/
f32 d = pos_max_d * 1.1;
// A fairly large value in here makes moving smoother
//f32 d = 0.15*BS;
// This should always apply, otherwise there are glitches
assert(d > pos_max_d);
/*
Calculate collision box
*/
core::aabbox3d<f32> box = box_0;
box.MaxEdge += pos_f;
box.MinEdge += pos_f;
core::aabbox3d<f32> oldbox = box_0;
oldbox.MaxEdge += oldpos_f;
oldbox.MinEdge += oldpos_f;
/*
If the object lies on a walkable node, this is set to true.
*/
result.touching_ground = false;
/*
Go through every node around the object
*/
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{
// Object collides into walkable nodes
if(content_walkable(map->getNode(v3s16(x,y,z)).d) == 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.
Object touches ground if object's minimum Y is near node's
maximum Y and object's X-Z-area overlaps with the node's
X-Z-area.
Use 0.15*BS so that it is easier to get on a node.
*/
if(
//fabs(nodebox.MaxEdge.Y-box.MinEdge.Y) < d
fabs(nodebox.MaxEdge.Y-box.MinEdge.Y) < 0.15*BS
&& nodebox.MaxEdge.X-d > box.MinEdge.X
&& nodebox.MinEdge.X+d < box.MaxEdge.X
&& nodebox.MaxEdge.Z-d > box.MinEdge.Z
&& nodebox.MinEdge.Z+d < box.MaxEdge.Z
){
result.touching_ground = true;
}
// If object doesn't intersect with node, ignore node.
if(box.intersectsWithBox(nodebox) == false)
continue;
/*
Go through every axis
*/
v3f dirs[3] = {
v3f(0,0,1), // back-front
v3f(0,1,0), // top-bottom
v3f(1,0,0), // right-left
};
for(u16 i=0; i<3; i++)
{
/*
Calculate values along the axis
*/
f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
f32 objectmax = box.MaxEdge.dotProduct(dirs[i]);
f32 objectmin = box.MinEdge.dotProduct(dirs[i]);
f32 objectmax_old = oldbox.MaxEdge.dotProduct(dirs[i]);
f32 objectmin_old = oldbox.MinEdge.dotProduct(dirs[i]);
/*
Check collision for the axis.
Collision happens when object is going through a surface.
*/
bool negative_axis_collides =
(nodemax > objectmin && nodemax <= objectmin_old + d
&& speed_f.dotProduct(dirs[i]) < 0);
bool positive_axis_collides =
(nodemin < objectmax && nodemin >= objectmax_old - d
&& speed_f.dotProduct(dirs[i]) > 0);
bool main_axis_collides =
negative_axis_collides || positive_axis_collides;
/*
Check overlap of object and node in other axes
*/
bool other_axes_overlap = 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 objectmax = box.MaxEdge.dotProduct(dirs[j]);
f32 objectmin = box.MinEdge.dotProduct(dirs[j]);
if(!(nodemax - d > objectmin && nodemin + d < objectmax))
{
other_axes_overlap = false;
break;
}
}
/*
If this is a collision, revert the pos_f in the main
direction.
*/
if(other_axes_overlap && main_axis_collides)
{
speed_f -= speed_f.dotProduct(dirs[i]) * dirs[i];
pos_f -= pos_f.dotProduct(dirs[i]) * dirs[i];
pos_f += oldpos_f.dotProduct(dirs[i]) * dirs[i];
}
}
} // xyz
return result;
}

43
src/collision.h Normal file
View File

@ -0,0 +1,43 @@
/*
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.
*/
#ifndef COLLISION_HEADER
#define COLLISION_HEADER
#include "common_irrlicht.h"
class Map;
struct collisionMoveResult
{
bool touching_ground;
collisionMoveResult():
touching_ground(false)
{}
};
collisionMoveResult collisionMoveSimple(Map *map, f32 pos_max_d,
const core::aabbox3d<f32> &box_0,
f32 dtime, v3f &pos_f, v3f &speed_f);
//{return collisionMoveResult();}
#endif

37
src/environment.cpp
View File

@ -189,7 +189,8 @@ u32 Environment::getDayNightRatio()
ServerEnvironment::ServerEnvironment(ServerMap *map, Server *server):
m_map(map),
m_server(server),
m_random_spawn_timer(3)
m_random_spawn_timer(3),
m_send_recommended_timer(0)
{
}
@ -422,19 +423,25 @@ void ServerEnvironment::step(float dtime)
}
}
//if(g_settings.getBool("enable_experimental"))
{
/*
Step active objects
*/
bool send_recommended = false;
m_send_recommended_timer += dtime;
if(m_send_recommended_timer > 0.2)
{
m_send_recommended_timer = 0;
send_recommended = true;
}
for(core::map<u16, ServerActiveObject*>::Iterator
i = m_active_objects.getIterator();
i.atEnd()==false; i++)
{
ServerActiveObject* obj = i.getNode()->getValue();
// Step object, putting messages directly to the queue
obj->step(dtime, m_active_object_messages);
obj->step(dtime, m_active_object_messages, send_recommended);
}
/*
@ -460,6 +467,19 @@ void ServerEnvironment::step(float dtime)
// If not m_removed, don't remove.
if(obj->m_removed == false)
continue;
// Delete static data from block
if(obj->m_static_exists)
{
MapBlock *block = m_map->getBlockNoCreateNoEx(obj->m_static_block);
if(block)
{
block->m_static_objects.remove(id);
block->setChangedFlag();
}
}
// If m_known_by_count > 0, don't actually remove.
if(obj->m_known_by_count > 0)
continue;
// Delete
delete obj;
// Id to be removed from m_active_objects
@ -633,6 +653,9 @@ void ServerEnvironment::step(float dtime)
}
}
if(g_settings.getBool("enable_experimental"))
{
/*
TEST CODE
*/
@ -668,7 +691,8 @@ void ServerEnvironment::step(float dtime)
//TestSAO *obj = new TestSAO(this, 0, pos);
//ServerActiveObject *obj = new ItemSAO(this, 0, pos, "CraftItem Stick 1");
//addActiveObject(obj);
ServerActiveObject *obj = new RatSAO(this, 0, pos);
addActiveObject(obj);
}
#endif
@ -1082,6 +1106,7 @@ void ClientEnvironment::step(float dtime)
/*
Step active objects
*/
for(core::map<u16, ClientActiveObject*>::Iterator
i = m_active_objects.getIterator();
i.atEnd()==false; i++)

1
src/environment.h
View File

@ -153,6 +153,7 @@ private:
core::map<u16, ServerActiveObject*> m_active_objects;
Queue<ActiveObjectMessage> m_active_object_messages;
float m_random_spawn_timer;
float m_send_recommended_timer;
};
#ifndef SERVER

57
src/inventory.cpp
View File

@ -27,6 +27,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "debug.h"
#include <sstream>
#include "main.h"
#include "serverobject.h"
/*
InventoryItem
@ -90,6 +91,19 @@ InventoryItem* InventoryItem::deSerialize(std::istream &is)
}
}
ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
{
/*
Create an ItemSAO
*/
// Get item string
std::ostringstream os(std::ios_base::binary);
serialize(os);
// Create object
ServerActiveObject *obj = new ItemSAO(env, 0, pos, os.str());
return obj;
}
/*
MaterialItem
*/
@ -124,6 +138,48 @@ InventoryItem *MaterialItem::createCookResult()
CraftItem
*/
#ifndef SERVER
video::ITexture * CraftItem::getImage()
{
if(g_texturesource == NULL)
return NULL;
std::string name;
if(m_subname == "Stick")
name = "stick.png";
else if(m_subname == "lump_of_coal")
name = "lump_of_coal.png";
else if(m_subname == "lump_of_iron")
name = "lump_of_iron.png";
else if(m_subname == "steel_ingot")
name = "steel_ingot.png";
else if(m_subname == "rat")
name = "rat.png";
else
name = "cloud.png";
// Get such a texture
//return g_irrlicht->getTexture(name);
return g_texturesource->getTextureRaw(name);
}
#endif
ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
{
// Special cases
if(m_subname == "rat")
{
ServerActiveObject *obj = new RatSAO(env, id, pos);
return obj;
}
// Default
else
{
return InventoryItem::createSAO(env, id, pos);
}
}
bool CraftItem::isCookable()
{
if(m_subname == "lump_of_iron")
@ -144,6 +200,7 @@ InventoryItem *CraftItem::createCookResult()
/*
MapBlockObjectItem
TODO: Remove
*/
#ifndef SERVER
video::ITexture * MapBlockObjectItem::getImage()

39
src/inventory.h
View File

@ -35,6 +35,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define QUANTITY_ITEM_MAX_COUNT 99
class ServerActiveObject;
class ServerEnvironment;
class InventoryItem
{
public:
@ -54,6 +57,12 @@ public:
#endif
// Shall return a text to show in the GUI
virtual std::string getText() { return ""; }
// Creates an object from the item, to be placed in the world.
virtual ServerActiveObject* createSAO(ServerEnvironment *env, u16 id, v3f pos);
/*
Quantity methods
*/
// Shall return true if the item can be add()ed to the other
virtual bool addableTo(InventoryItem *other)
@ -61,9 +70,6 @@ public:
return false;
}
/*
Quantity methods
*/
u16 getCount()
{
return m_count;
@ -175,6 +181,7 @@ private:
u8 m_content;
};
//TODO: Remove
class MapBlockObjectItem : public InventoryItem
{
public:
@ -262,28 +269,7 @@ public:
return new CraftItem(m_subname, m_count);
}
#ifndef SERVER
video::ITexture * getImage()
{
if(g_texturesource == NULL)
return NULL;
std::string name;
if(m_subname == "Stick")
name = "stick.png";
else if(m_subname == "lump_of_coal")
name = "lump_of_coal.png";
else if(m_subname == "lump_of_iron")
name = "lump_of_iron.png";
else if(m_subname == "steel_ingot")
name = "steel_ingot.png";
else
name = "cloud.png";
// Get such a texture
//return g_irrlicht->getTexture(name);
return g_texturesource->getTextureRaw(name);
}
video::ITexture * getImage();
#endif
std::string getText()
{
@ -291,6 +277,9 @@ public:
os<<m_count;
return os.str();
}
ServerActiveObject* createSAO(ServerEnvironment *env, u16 id, v3f pos);
virtual bool addableTo(InventoryItem *other)
{
if(std::string(other->getName()) != "CraftItem")

4
src/mapblock.cpp
View File

@ -1295,7 +1295,7 @@ MapBlock::MapBlock(NodeContainer *parent, v3s16 pos, bool dummy):
if(dummy == false)
reallocate();
m_spawn_timer = -10000;
//m_spawn_timer = -10000;
#ifndef SERVER
m_mesh_expired = false;
@ -1688,6 +1688,7 @@ void MapBlock::stepObjects(float dtime, bool server, u32 daynight_ratio)
*/
m_objects.step(dtime, server, daynight_ratio);
#if 0
/*
Spawn some objects at random.
@ -1724,6 +1725,7 @@ void MapBlock::stepObjects(float dtime, bool server, u32 daynight_ratio)
}
}
}
#endif
setChangedFlag();
}

3
src/mapblock.h
View File

@ -729,10 +729,11 @@ private:
// Whether day and night lighting differs
bool m_day_night_differs;
// TODO: Remove this
MapBlockObjectList m_objects;
// Object spawning stuff
float m_spawn_timer;
//float m_spawn_timer;
#ifndef SERVER // Only on client
/*

37
src/server.cpp
View File

@ -2046,29 +2046,27 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
return;
}
// Skip if object has been removed
if(obj->m_removed)
return;
/*
Create the inventory item
*/
InventoryItem *item = NULL;
// If it is an item-object, take the item from it
if(obj->getType() == ACTIVEOBJECT_TYPE_ITEM
&& obj->m_removed == false)
{
item = ((ItemSAO*)obj)->createInventoryItem();
}
InventoryItem *item = obj->createPickedUpItem();
if(item)
{
// Add to inventory and send inventory
ilist->addItem(item);
SendInventory(player->peer_id);
}
}
// Remove object from environment
obj->m_removed = true;
}
}
}
}
else if(command == TOSERVER_GROUND_ACTION)
{
if(datasize < 17)
@ -2448,15 +2446,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
pos.Z += BS*0.2*(float)myrand_range(-1000,1000)/1000.0;
/*
Create an ItemSAO
Create the object
*/
// Get item string
std::ostringstream os(std::ios_base::binary);
item->serialize(os);
dout_server<<"Item string is \""<<os.str()<<"\""<<std::endl;
// Create object
ServerActiveObject *obj = new ItemSAO
(&m_env, 0, pos, os.str());
ServerActiveObject *obj = item->createSAO(&m_env, 0, pos);
if(obj == NULL)
{
@ -2471,6 +2463,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
dout_server<<"Placed object"<<std::endl;
// If item has count<=1, delete it
if(item->getCount() <= 1)
{
InventoryList *ilist = player->inventory.getList("main");
if(g_settings.getBool("creative_mode") == false && ilist)
{
@ -2480,6 +2475,14 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
SendInventory(peer_id);
}
}
// Else decrement it
else
{
item->remove(1);
// Send inventory
SendInventory(peer_id);
}
}
}
} // action == 1

194
src/serverobject.cpp
View File

@ -91,7 +91,8 @@ ServerActiveObject* TestSAO::create(ServerEnvironment *env, u16 id, v3f pos,
return new TestSAO(env, id, pos);
}
void TestSAO::step(float dtime, Queue<ActiveObjectMessage> &messages)
void TestSAO::step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended)
{
m_age += dtime;
if(m_age > 10)
@ -104,6 +105,9 @@ void TestSAO::step(float dtime, Queue<ActiveObjectMessage> &messages)
if(m_base_position.Y > 8*BS)
m_base_position.Y = 2*BS;
if(send_recommended == false)
return;
m_timer1 -= dtime;
if(m_timer1 < 0.0)
{
@ -137,7 +141,8 @@ ItemSAO::ItemSAO(ServerEnvironment *env, u16 id, v3f pos,
const std::string inventorystring):
ServerActiveObject(env, id, pos),
m_inventorystring(inventorystring),
m_speed_f(0,0,0)
m_speed_f(0,0,0),
m_last_sent_position(0,0,0)
{
dstream<<"Server: ItemSAO created with inventorystring=\""
<<m_inventorystring<<"\""<<std::endl;
@ -161,7 +166,8 @@ ServerActiveObject* ItemSAO::create(ServerEnvironment *env, u16 id, v3f pos,
return new ItemSAO(env, id, pos, inventorystring);
}
void ItemSAO::step(float dtime, Queue<ActiveObjectMessage> &messages)
void ItemSAO::step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended)
{
core::aabbox3d<f32> box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.);
collisionMoveResult moveresult;
@ -177,9 +183,13 @@ void ItemSAO::step(float dtime, Queue<ActiveObjectMessage> &messages)
moveresult = collisionMoveSimple(&m_env->getMap(), pos_max_d,
box, dtime, pos_f, m_speed_f);
if(pos_f.getDistanceFrom(pos_f_old) > 0.01*BS)
if(send_recommended == false)
return;
if(pos_f.getDistanceFrom(m_last_sent_position) > 0.05*BS)
{
setBasePosition(pos_f);
m_last_sent_position = pos_f;
std::ostringstream os(std::ios::binary);
char buf[6];
@ -250,4 +260,180 @@ InventoryItem * ItemSAO::createInventoryItem()
}
/*
RatSAO
*/
// Prototype
RatSAO proto_RatSAO(NULL, 0, v3f(0,0,0));
RatSAO::RatSAO(ServerEnvironment *env, u16 id, v3f pos):
ServerActiveObject(env, id, pos),
m_speed_f(0,0,0)
{
dstream<<"Server: RatSAO created"<<std::endl;
ServerActiveObject::registerType(getType(), create);
m_oldpos = v3f(0,0,0);
m_last_sent_position = v3f(0,0,0);
m_yaw = 0;
m_counter1 = 0;
m_counter2 = 0;
m_age = 0;
m_touching_ground = false;
}
ServerActiveObject* RatSAO::create(ServerEnvironment *env, u16 id, v3f pos,
const std::string &data)
{
std::istringstream is(data, std::ios::binary);
char buf[1];
// read version
is.read(buf, 1);
u8 version = buf[0];
// check if version is supported
if(version != 0)
return NULL;
return new RatSAO(env, id, pos);
}
void RatSAO::step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended)
{
/*
The AI
*/
m_age += dtime;
if(m_age > 60)
{
// Die
m_removed = true;
return;
}
// Apply gravity
m_speed_f.Y -= dtime*9.81*BS;
/*
Move around if some player is close
*/
bool player_is_close = false;
// Check connected players
core::list<Player*> players = m_env->getPlayers(true);
core::list<Player*>::Iterator i;
for(i = players.begin();
i != players.end(); i++)
{
Player *player = *i;
v3f playerpos = player->getPosition();
if(m_base_position.getDistanceFrom(playerpos) < BS*10.0)
{
player_is_close = true;
break;
}
}
if(player_is_close == false)
{
m_speed_f.X = 0;
m_speed_f.Z = 0;
}
else
{
// Move around
v3f dir(cos(m_yaw/180*PI),0,sin(m_yaw/180*PI));
f32 speed = 2*BS;
m_speed_f.X = speed * dir.X;
m_speed_f.Z = speed * dir.Z;
if(m_touching_ground && (m_oldpos - m_base_position).getLength()
< dtime*speed/2)
{
m_counter1 -= dtime;
if(m_counter1 < 0.0)
{
m_counter1 += 1.0;
m_speed_f.Y = 5.0*BS;
}
}
{
m_counter2 -= dtime;
if(m_counter2 < 0.0)
{
m_counter2 += (float)(myrand()%100)/100*3.0;
m_yaw += ((float)(myrand()%200)-100)/100*180;
m_yaw = wrapDegrees(m_yaw);
}
}
}
m_oldpos = m_base_position;
/*
Move it, with collision detection
*/
core::aabbox3d<f32> box(-BS/3.,0.0,-BS/3., BS/3.,BS*2./3.,BS/3.);
collisionMoveResult moveresult;
// Maximum movement without glitches
f32 pos_max_d = BS*0.25;
// Limit speed
if(m_speed_f.getLength()*dtime > pos_max_d)
m_speed_f *= pos_max_d / (m_speed_f.getLength()*dtime);
v3f pos_f = getBasePosition();
v3f pos_f_old = pos_f;
moveresult = collisionMoveSimple(&m_env->getMap(), pos_max_d,
box, dtime, pos_f, m_speed_f);
m_touching_ground = moveresult.touching_ground;
setBasePosition(pos_f);
if(send_recommended == false)
return;
if(pos_f.getDistanceFrom(m_last_sent_position) > 0.05*BS)
{
m_last_sent_position = pos_f;
std::ostringstream os(std::ios::binary);
// command (0 = update position)
writeU8(os, 0);
// pos
writeV3F1000(os, m_base_position);
// yaw
writeF1000(os, m_yaw);
// create message and add to list
ActiveObjectMessage aom(getId(), false, os.str());
messages.push_back(aom);
}
}
std::string RatSAO::getClientInitializationData()
{
std::ostringstream os(std::ios::binary);
// version
writeU8(os, 0);
// pos
writeV3F1000(os, m_base_position);
return os.str();
}
std::string RatSAO::getStaticData()
{
dstream<<__FUNCTION_NAME<<std::endl;
std::ostringstream os(std::ios::binary);
// version
writeU8(os, 0);
return os.str();
}
InventoryItem* RatSAO::createPickedUpItem()
{
std::istringstream is("CraftItem rat 1", std::ios_base::binary);
InventoryItem *item = InventoryItem::deSerialize(is);
return item;
}

79
src/serverobject.h
View File

@ -40,6 +40,38 @@ Some planning
*/
#if 0
class IntervalLimiter
{
public:
IntervalLimiter():
m_accumulator(0)
{
}
/*
dtime: time from last call to this method
wanted_interval: interval wanted
return value:
true: action should be skipped
false: action should be done and dtime has been set
*/
bool step(float &dtime, float wanted_interval)
{
accumulator += dtime;
if(accumulator < wanted_interval)
{
dtime = 0;
return true;
}
accumulator -= wanted-interval;
dtime = wanted_interval;
return false;
}
protected:
float m_accumulator;
};
#endif
class ServerEnvironment;
class InventoryItem;
@ -67,8 +99,15 @@ public:
/*
Step object in time.
Messages added to messages are sent to client over network.
send_recommended:
True at around 5 times a second, same for all objects.
This is used to let objects send most of the data at the
same time so that the data can be combined in a single
packet.
*/
virtual void step(float dtime, Queue<ActiveObjectMessage> &messages){}
virtual void step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended){}
/*
The return value of this is passed to the client-side object
@ -83,6 +122,12 @@ public:
*/
virtual std::string getStaticData(){return "";}
/*
Item that the player gets when this object is picked up.
If NULL, object cannot be picked up.
*/
virtual InventoryItem* createPickedUpItem(){return NULL;}
// Number of players which know about this object
u16 m_known_by_count;
/*
@ -129,7 +174,8 @@ public:
{return ACTIVEOBJECT_TYPE_TEST;}
static ServerActiveObject* create(ServerEnvironment *env, u16 id, v3f pos,
const std::string &data);
void step(float dtime, Queue<ActiveObjectMessage> &messages);
void step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended);
private:
float m_timer1;
float m_age;
@ -144,13 +190,40 @@ public:
{return ACTIVEOBJECT_TYPE_ITEM;}
static ServerActiveObject* create(ServerEnvironment *env, u16 id, v3f pos,
const std::string &data);
void step(float dtime, Queue<ActiveObjectMessage> &messages);
void step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended);
std::string getClientInitializationData();
std::string getStaticData();
InventoryItem* createInventoryItem();
InventoryItem* createPickedUpItem(){return createInventoryItem();}
private:
std::string m_inventorystring;
v3f m_speed_f;
v3f m_last_sent_position;
};
class RatSAO : public ServerActiveObject
{
public:
RatSAO(ServerEnvironment *env, u16 id, v3f pos);
u8 getType() const
{return ACTIVEOBJECT_TYPE_RAT;}
static ServerActiveObject* create(ServerEnvironment *env, u16 id, v3f pos,
const std::string &data);
void step(float dtime, Queue<ActiveObjectMessage> &messages,
bool send_recommended);
std::string getClientInitializationData();
std::string getStaticData();
InventoryItem* createPickedUpItem();
private:
v3f m_speed_f;
v3f m_oldpos;
v3f m_last_sent_position;
float m_yaw;
float m_counter1;
float m_counter2;
float m_age;
bool m_touching_ground;
};
#endif

81
src/utility.h
View File

@ -95,8 +95,6 @@ inline u8 readU8(u8 *data)
return (data[0]<<0);
}
// Signed variants of the above
inline void writeS32(u8 *data, s32 i){
writeU32(data, (u32)i);
}
@ -104,6 +102,13 @@ inline s32 readS32(u8 *data){
return (s32)readU32(data);
}
inline void writeF1000(u8 *data, f32 i){
writeS32(data, i*1000);
}
inline f32 readF1000(u8 *data){
return (f32)readS32(data)/1000.;
}
inline void writeS16(u8 *data, s16 i){
writeU16(data, (u16)i);
}
@ -117,7 +122,6 @@ inline void writeV3S32(u8 *data, v3s32 p)
writeS32(&data[4], p.Y);
writeS32(&data[8], p.Z);
}
inline v3s32 readV3S32(u8 *data)
{
v3s32 p;
@ -127,6 +131,21 @@ inline v3s32 readV3S32(u8 *data)
return p;
}
inline void writeV3F1000(u8 *data, v3f p)
{
writeF1000(&data[0], p.X);
writeF1000(&data[4], p.Y);
writeF1000(&data[8], p.Z);
}
inline v3f readV3F1000(u8 *data)
{
v3f p;
p.X = (float)readF1000(&data[0]);
p.Y = (float)readF1000(&data[4]);
p.Z = (float)readF1000(&data[8]);
return p;
}
inline void writeV2S16(u8 *data, v2s16 p)
{
writeS16(&data[0], p.X);
@ -171,6 +190,62 @@ inline v3s16 readV3S16(u8 *data)
return p;
}
/*
The above stuff directly interfaced to iostream
*/
inline void writeU8(std::ostream &os, u8 p)
{
char buf[1];
writeU8((u8*)buf, p);
os.write(buf, 1);
}
inline u8 readU8(std::istream &is)
{
char buf[1];
is.read(buf, 1);
return readU8((u8*)buf);
}
inline void writeU16(std::ostream &os, u16 p)
{
char buf[2];
writeU16((u8*)buf, p);
os.write(buf, 2);
}
inline u16 readU16(std::istream &is)
{
char buf[12];
is.read(buf, 12);
return readU16((u8*)buf);
}
inline void writeF1000(std::ostream &os, f32 p)
{
char buf[2];
writeF1000((u8*)buf, p);
os.write(buf, 2);
}
inline f32 readF1000(std::istream &is)
{
char buf[12];
is.read(buf, 12);
return readF1000((u8*)buf);
}
inline void writeV3F1000(std::ostream &os, v3f p)
{
char buf[12];
writeV3F1000((u8*)buf, p);
os.write(buf, 12);
}
inline v3f readV3F1000(std::istream &is)
{
char buf[12];
is.read(buf, 12);
return readV3F1000((u8*)buf);
}
/*
None of these are used at the moment
*/