]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/content_cao.cpp
Prevent attached models from disappearing during parent reload (#4128)
[dragonfireclient.git] / src / content_cao.cpp
index d38cb892a3bc1966de794af59fd1f2ef841b4b73..207a630d7102ec824eb1c5bfd0d3cb1751913215 100644 (file)
@@ -51,7 +51,7 @@ struct ToolCapabilities;
 
 #define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
 
-std::map<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
+UNORDERED_MAP<u16, ClientActiveObject::Factory> ClientActiveObject::m_types;
 
 SmoothTranslator::SmoothTranslator():
        vect_old(0,0,0),
@@ -309,7 +309,7 @@ class ItemCAO : public ClientActiveObject
 
        void initialize(const std::string &data);
 
-       core::aabbox3d<f32>* getSelectionBox()
+       aabb3f *getSelectionBox()
                {return &m_selection_box;}
        v3f getPosition()
                {return m_position;}
@@ -319,7 +319,7 @@ class ItemCAO : public ClientActiveObject
 
        bool getCollisionBox(aabb3f *toset) { return false; }
 private:
-       core::aabbox3d<f32> m_selection_box;
+       aabb3f m_selection_box;
        scene::IMeshSceneNode *m_node;
        v3f m_position;
        std::string m_itemstring;
@@ -465,7 +465,7 @@ void ItemCAO::updateTexture()
        }
        catch(SerializationError &e)
        {
-               infostream<<"WARNING: "<<__FUNCTION_NAME
+               warningstream<<FUNCTION_NAME
                                <<": error deSerializing itemstring \""
                                <<m_itemstring<<std::endl;
        }
@@ -546,13 +546,13 @@ GenericCAO::GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
                //
                m_smgr(NULL),
                m_irr(NULL),
+               m_gamedef(NULL),
                m_selection_box(-BS/3.,-BS/3.,-BS/3., BS/3.,BS/3.,BS/3.),
                m_meshnode(NULL),
                m_animated_meshnode(NULL),
                m_wield_meshnode(NULL),
                m_spritenode(NULL),
-               m_nametag_color(video::SColor(255, 255, 255, 255)),
-               m_textnode(NULL),
+               m_nametag(NULL),
                m_position(v3f(0,10*BS,0)),
                m_velocity(v3f(0,0,0)),
                m_acceleration(v3f(0,0,0)),
@@ -566,7 +566,7 @@ GenericCAO::GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
                m_animation_speed(15),
                m_animation_blend(0),
                m_animation_loop(true),
-               m_bone_position(std::map<std::string, core::vector2d<v3f> >()),
+               m_bone_position(UNORDERED_MAP<std::string, core::vector2d<v3f> >()),
                m_attachment_bone(""),
                m_attachment_position(v3f(0,0,0)),
                m_attachment_rotation(v3f(0,0,0)),
@@ -581,8 +581,11 @@ GenericCAO::GenericCAO(IGameDef *gamedef, ClientEnvironment *env):
                m_last_light(255),
                m_is_visible(false)
 {
-       if(gamedef == NULL)
+       if (gamedef == NULL) {
                ClientActiveObject::registerType(getType(), create);
+       } else {
+               m_gamedef = gamedef;
+       }
 }
 
 bool GenericCAO::getCollisionBox(aabb3f *toset)
@@ -668,14 +671,13 @@ void GenericCAO::initialize(const std::string &data)
 
 GenericCAO::~GenericCAO()
 {
-       if(m_is_player)
-       {
+       if (m_is_player) {
                m_env->removePlayerName(m_name.c_str());
        }
        removeFromScene(true);
 }
 
-core::aabbox3d<f32>* GenericCAO::getSelectionBox()
+aabb3f *GenericCAO::getSelectionBox()
 {
        if(!m_prop.is_visible || !m_is_visible || m_is_local_player || getParent() != NULL)
                return NULL;
@@ -696,14 +698,15 @@ v3f GenericCAO::getPosition()
 
 scene::ISceneNode* GenericCAO::getSceneNode()
 {
-       if (m_meshnode)
+       if (m_meshnode) {
                return m_meshnode;
-       if (m_animated_meshnode)
+       } else if (m_animated_meshnode) {
                return m_animated_meshnode;
-       if (m_wield_meshnode)
+       } else if (m_wield_meshnode) {
                return m_wield_meshnode;
-       if (m_spritenode)
+       } else if (m_spritenode) {
                return m_spritenode;
+       }
        return NULL;
 }
 
@@ -776,56 +779,47 @@ void GenericCAO::removeFromScene(bool permanent)
                }
        }
 
-       if(m_meshnode)
-       {
+       if (m_meshnode) {
                m_meshnode->remove();
                m_meshnode->drop();
                m_meshnode = NULL;
-       }
-       if(m_animated_meshnode)
-       {
+       } else if (m_animated_meshnode) {
                m_animated_meshnode->remove();
                m_animated_meshnode->drop();
                m_animated_meshnode = NULL;
-       }
-       if(m_wield_meshnode)
-       {
+       } else if (m_wield_meshnode) {
                m_wield_meshnode->remove();
                m_wield_meshnode->drop();
                m_wield_meshnode = NULL;
-       }
-       if(m_spritenode)
-       {
+       } else if (m_spritenode) {
                m_spritenode->remove();
                m_spritenode->drop();
                m_spritenode = NULL;
        }
-       if (m_textnode)
-       {
-               m_textnode->remove();
-               m_textnode->drop();
-               m_textnode = NULL;
+
+       if (m_nametag) {
+               m_gamedef->getCamera()->removeNametag(m_nametag);
+               m_nametag = NULL;
        }
 }
 
-void GenericCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
-               IrrlichtDevice *irr)
+void GenericCAO::addToScene(scene::ISceneManager *smgr,
+               ITextureSource *tsrc, IrrlichtDevice *irr)
 {
        m_smgr = smgr;
        m_irr = irr;
 
-       if (getSceneNode() != NULL)
+       if (getSceneNode() != NULL) {
                return;
+       }
 
        m_visuals_expired = false;
 
-       if(!m_prop.is_visible)
+       if (!m_prop.is_visible) {
                return;
+       }
 
-       //video::IVideoDriver* driver = smgr->getVideoDriver();
-
-       if(m_prop.visual == "sprite")
-       {
+       if (m_prop.visual == "sprite") {
                infostream<<"GenericCAO::addToScene(): single_sprite"<<std::endl;
                m_spritenode = smgr->addBillboardSceneNode(
                                NULL, v2f(1, 1), v3f(0,0,0), -1);
@@ -845,54 +839,50 @@ void GenericCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
                        setBillboardTextureMatrix(m_spritenode,
                                        txs, tys, 0, 0);
                }
-       }
-       else if(m_prop.visual == "upright_sprite") {
+       } else if (m_prop.visual == "upright_sprite") {
                scene::SMesh *mesh = new scene::SMesh();
-               double dx = BS*m_prop.visual_size.X/2;
-               double dy = BS*m_prop.visual_size.Y/2;
-               { // Front
-               scene::IMeshBuffer *buf = new scene::SMeshBuffer();
+               double dx = BS * m_prop.visual_size.X / 2;
+               double dy = BS * m_prop.visual_size.Y / 2;
                u8 li = m_last_light;
-               video::SColor c(255,li,li,li);
-               video::S3DVertex vertices[4] =
-               {
-                       video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
-                       video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
-                       video::S3DVertex(dx,dy,0, 0,0,0, c, 1,0),
-                       video::S3DVertex(-dx,dy,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_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();
+               video::SColor c(255, li, li, li);
+
+               { // Front
+                       scene::IMeshBuffer *buf = new scene::SMeshBuffer();
+                       video::S3DVertex vertices[4] = {
+                               video::S3DVertex(-dx, -dy, 0, 0,0,0, c, 1,1),
+                               video::S3DVertex( dx, -dy, 0, 0,0,0, c, 0,1),
+                               video::S3DVertex( dx,  dy, 0, 0,0,0, c, 0,0),
+                               video::S3DVertex(-dx,  dy, 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_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();
                }
                { // Back
-               scene::IMeshBuffer *buf = new scene::SMeshBuffer();
-               u8 li = m_last_light;
-               video::SColor c(255,li,li,li);
-               video::S3DVertex vertices[4] =
-               {
-                       video::S3DVertex(dx,-dy,0, 0,0,0, c, 1,1),
-                       video::S3DVertex(-dx,-dy,0, 0,0,0, c, 0,1),
-                       video::S3DVertex(-dx,dy,0, 0,0,0, c, 0,0),
-                       video::S3DVertex(dx,dy,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_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();
+                       scene::IMeshBuffer *buf = new scene::SMeshBuffer();
+                       video::S3DVertex vertices[4] = {
+                               video::S3DVertex( dx,-dy, 0, 0,0,0, c, 1,1),
+                               video::S3DVertex(-dx,-dy, 0, 0,0,0, c, 0,1),
+                               video::S3DVertex(-dx, dy, 0, 0,0,0, c, 0,0),
+                               video::S3DVertex( dx, dy, 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_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_meshnode = smgr->addMeshSceneNode(mesh, NULL);
                m_meshnode->grab();
@@ -934,10 +924,15 @@ void GenericCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
                        u8 li = m_last_light;
                        setMeshColor(m_animated_meshnode->getMesh(), video::SColor(255,li,li,li));
 
+                       bool backface_culling = m_prop.backface_culling;
+                       if (m_is_player)
+                               backface_culling = false;
+
                        m_animated_meshnode->setMaterialFlag(video::EMF_LIGHTING, false);
                        m_animated_meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
                        m_animated_meshnode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
                        m_animated_meshnode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
+                       m_animated_meshnode->setMaterialFlag(video::EMF_BACK_FACE_CULLING, backface_culling);
                }
                else
                        errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;
@@ -967,14 +962,10 @@ void GenericCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
        updateTextures("");
 
        scene::ISceneNode *node = getSceneNode();
-       if (node && m_is_player && !m_is_local_player) {
-               // Add a text node for showing the name
-               gui::IGUIEnvironment* gui = irr->getGUIEnvironment();
-               std::wstring wname = narrow_to_wide(m_name);
-               m_textnode = smgr->addTextSceneNode(gui->getSkin()->getFont(),
-                               wname.c_str(), m_nametag_color, node);
-               m_textnode->grab();
-               m_textnode->setPosition(v3f(0, BS*1.1, 0));
+       if (node && m_prop.nametag != "" && !m_is_local_player) {
+               // Add nametag
+               m_nametag = m_gamedef->getCamera()->addNametag(node,
+                       m_prop.nametag, m_prop.nametag_color);
        }
 
        updateNodePos();
@@ -984,20 +975,38 @@ void GenericCAO::addToScene(scene::ISceneManager *smgr, ITextureSource *tsrc,
 }
 
 void GenericCAO::updateLight(u8 light_at_pos)
+{
+       // Don't update light of attached one
+       if (getParent() != NULL) {
+               return;
+       }
+
+       updateLightNoCheck(light_at_pos);
+
+       // Update light of all children
+       for (std::vector<u16>::size_type i = 0; i < m_children.size(); i++) {
+               ClientActiveObject *obj = m_env->getActiveObject(m_children[i]);
+               if (obj) {
+                       obj->updateLightNoCheck(light_at_pos);
+               }
+       }
+}
+
+void GenericCAO::updateLightNoCheck(u8 light_at_pos)
 {
        u8 li = decode_light(light_at_pos);
-       if(li != m_last_light)
-       {
+       if (li != m_last_light) {
                m_last_light = li;
                video::SColor color(255,li,li,li);
-               if(m_meshnode)
+               if (m_meshnode) {
                        setMeshColor(m_meshnode->getMesh(), color);
-               if(m_animated_meshnode)
+               } else if (m_animated_meshnode) {
                        setMeshColor(m_animated_meshnode->getMesh(), color);
-               if(m_wield_meshnode)
+               } else if (m_wield_meshnode) {
                        m_wield_meshnode->setColor(color);
-               if(m_spritenode)
+               } else if (m_spritenode) {
                        m_spritenode->setColor(color);
+               }
        }
 }
 
@@ -1043,7 +1052,9 @@ void GenericCAO::step(float dtime, ClientEnvironment *env)
                        PlayerControl controls = player->getPlayerControl();
 
                        bool walking = false;
-                       if(controls.up || controls.down || controls.left || controls.right)
+                       if (controls.up || controls.down || controls.left || controls.right ||
+                                       controls.forw_move_joystick_axis != 0.f ||
+                                       controls.sidew_move_joystick_axis != 0.f)
                                walking = true;
 
                        f32 new_speed = player->local_animation_speed;
@@ -1158,22 +1169,20 @@ void GenericCAO::step(float dtime, ClientEnvironment *env)
 
                if(m_prop.physical)
                {
-                       core::aabbox3d<f32> box = m_prop.collisionbox;
+                       aabb3f box = m_prop.collisionbox;
                        box.MinEdge *= BS;
                        box.MaxEdge *= BS;
                        collisionMoveResult moveresult;
                        f32 pos_max_d = BS*0.125; // Distance per iteration
                        v3f p_pos = m_position;
                        v3f p_velocity = m_velocity;
-                       v3f p_acceleration = m_acceleration;
                        moveresult = collisionMoveSimple(env,env->getGameDef(),
                                        pos_max_d, box, m_prop.stepheight, dtime,
-                                       p_pos, p_velocity, p_acceleration,
+                                       &p_pos, &p_velocity, m_acceleration,
                                        this, m_prop.collideWithObjects);
                        // Apply results
                        m_position = p_pos;
                        m_velocity = p_velocity;
-                       m_acceleration = p_acceleration;
 
                        bool is_end_position = moveresult.collides;
                        pos_translator.update(m_position, is_end_position, dtime);
@@ -1233,8 +1242,18 @@ void GenericCAO::step(float dtime, ClientEnvironment *env)
        if (getParent() == NULL && m_prop.automatic_face_movement_dir &&
                        (fabs(m_velocity.Z) > 0.001 || fabs(m_velocity.X) > 0.001))
        {
-               m_yaw = atan2(m_velocity.Z,m_velocity.X) * 180 / M_PI
+               float optimal_yaw = atan2(m_velocity.Z,m_velocity.X) * 180 / M_PI
                                + m_prop.automatic_face_movement_dir_offset;
+               float max_rotation_delta =
+                               dtime * m_prop.automatic_face_movement_max_rotation_per_sec;
+
+               if ((m_prop.automatic_face_movement_max_rotation_per_sec > 0) &&
+                       (fabs(m_yaw - optimal_yaw) > max_rotation_delta)) {
+
+                       m_yaw = optimal_yaw < m_yaw ? m_yaw - max_rotation_delta : m_yaw + max_rotation_delta;
+               } else {
+                       m_yaw = optimal_yaw;
+               }
                updateNodePos();
        }
 }
@@ -1486,10 +1505,8 @@ void GenericCAO::updateBonePosition()
                return;
 
        m_animated_meshnode->setJointMode(irr::scene::EJUOR_CONTROL); // To write positions to the mesh on render
-       for(std::map<std::string,
-                       core::vector2d<v3f> >::const_iterator ii = m_bone_position.begin();
-                       ii != m_bone_position.end(); ++ii)
-       {
+       for(UNORDERED_MAP<std::string, core::vector2d<v3f> >::const_iterator
+                       ii = m_bone_position.begin(); ii != m_bone_position.end(); ++ii) {
                std::string bone_name = (*ii).first;
                v3f bone_pos = (*ii).second.X;
                v3f bone_rot = (*ii).second.Y;
@@ -1550,8 +1567,7 @@ void GenericCAO::processMessage(const std::string &data)
        std::istringstream is(data, std::ios::binary);
        // command
        u8 cmd = readU8(is);
-       if(cmd == GENERIC_CMD_SET_PROPERTIES)
-       {
+       if (cmd == GENERIC_CMD_SET_PROPERTIES) {
                m_prop = gob_read_set_properties(is);
 
                m_selection_box = m_prop.collisionbox;
@@ -1566,10 +1582,11 @@ void GenericCAO::processMessage(const std::string &data)
                        m_tx_basepos = m_prop.initial_sprite_basepos;
                }
 
+               if ((m_is_player && !m_is_local_player) && m_prop.nametag == "")
+                       m_prop.nametag = m_name;
+
                expireVisuals();
-       }
-       else if(cmd == GENERIC_CMD_UPDATE_POSITION)
-       {
+       } else if (cmd == GENERIC_CMD_UPDATE_POSITION) {
                // Not sent by the server if this object is an attachment.
                // We might however get here if the server notices the object being detached before the client.
                m_position = readV3F1000(is);
@@ -1599,12 +1616,10 @@ void GenericCAO::processMessage(const std::string &data)
                        pos_translator.init(m_position);
                }
                updateNodePos();
-       }
-       else if(cmd == GENERIC_CMD_SET_TEXTURE_MOD) {
+       } else if (cmd == GENERIC_CMD_SET_TEXTURE_MOD) {
                std::string mod = deSerializeString(is);
                updateTextures(mod);
-       }
-       else if(cmd == GENERIC_CMD_SET_SPRITE) {
+       } else if (cmd == GENERIC_CMD_SET_SPRITE) {
                v2s16 p = readV2S16(is);
                int num_frames = readU16(is);
                float framelength = readF1000(is);
@@ -1616,8 +1631,7 @@ void GenericCAO::processMessage(const std::string &data)
                m_tx_select_horiz_by_yawpitch = select_horiz_by_yawpitch;
 
                updateTexturePos();
-       }
-       else if(cmd == GENERIC_CMD_SET_PHYSICS_OVERRIDE) {
+       } else if (cmd == GENERIC_CMD_SET_PHYSICS_OVERRIDE) {
                float override_speed = readF1000(is);
                float override_jump = readF1000(is);
                float override_gravity = readF1000(is);
@@ -1635,8 +1649,7 @@ void GenericCAO::processMessage(const std::string &data)
                        player->physics_override_sneak = sneak;
                        player->physics_override_sneak_glitch = sneak_glitch;
                }
-       }
-       else if(cmd == GENERIC_CMD_SET_ANIMATION) {
+       } else if (cmd == GENERIC_CMD_SET_ANIMATION) {
                // TODO: change frames send as v2s32 value
                v2f range = readV2F1000(is);
                if (!m_is_local_player) {
@@ -1670,8 +1683,7 @@ void GenericCAO::processMessage(const std::string &data)
                                        updateAnimation();
                        }
                }
-       }
-       else if(cmd == GENERIC_CMD_SET_BONE_POSITION) {
+       } else if (cmd == GENERIC_CMD_SET_BONE_POSITION) {
                std::string bone = deSerializeString(is);
                v3f position = readV3F1000(is);
                v3f rotation = readV3F1000(is);
@@ -1704,8 +1716,7 @@ void GenericCAO::processMessage(const std::string &data)
                }
 
                updateAttachments();
-       }
-       else if(cmd == GENERIC_CMD_PUNCHED) {
+       } else if (cmd == GENERIC_CMD_PUNCHED) {
                /*s16 damage =*/ readS16(is);
                s16 result_hp = readS16(is);
 
@@ -1733,8 +1744,7 @@ void GenericCAO::processMessage(const std::string &data)
                                updateTextures("^[brighten");
                        }
                }
-       }
-       else if(cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS) {
+       } else if (cmd == GENERIC_CMD_UPDATE_ARMOR_GROUPS) {
                m_armor_groups.clear();
                int armor_groups_size = readU16(is);
                for(int i=0; i<armor_groups_size; i++)
@@ -1744,16 +1754,25 @@ void GenericCAO::processMessage(const std::string &data)
                        m_armor_groups[name] = rating;
                }
        } else if (cmd == GENERIC_CMD_UPDATE_NAMETAG_ATTRIBUTES) {
+               // Deprecated, for backwards compatibility only.
                readU8(is); // version
-               m_nametag_color = readARGB8(is);
-               if (m_textnode != NULL) {
-                       m_textnode->setTextColor(m_nametag_color);
-
-                       // Enforce hiding nametag,
-                       // because if freetype is enabled, a grey
-                       // shadow can remain.
-                       m_textnode->setVisible(m_nametag_color.getAlpha() > 0);
+               m_prop.nametag_color = readARGB8(is);
+               if (m_nametag != NULL) {
+                       m_nametag->nametag_color = m_prop.nametag_color;
                }
+       } else if (cmd == GENERIC_CMD_SPAWN_INFANT) {
+               u16 child_id = readU16(is);
+               u8 type = readU8(is);
+
+               if (GenericCAO *childobj = m_env->getGenericCAO(child_id)) {
+                       childobj->initialize(deSerializeLongString(is));
+               } else {
+                       m_env->addActiveObject(child_id, type, deSerializeLongString(is));
+               }
+       } else {
+               warningstream << FUNCTION_NAME
+                       << ": unknown command or outdated client \""
+                       << cmd << std::endl;
        }
 }
 
@@ -1802,7 +1821,7 @@ std::string GenericCAO::debugInfoText()
        os<<"GenericCAO hp="<<m_hp<<"\n";
        os<<"armor={";
        for(ItemGroupList::const_iterator i = m_armor_groups.begin();
-                       i != m_armor_groups.end(); i++)
+                       i != m_armor_groups.end(); ++i)
        {
                os<<i->first<<"="<<i->second<<", ";
        }